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The 2003 Pacific hurricane season was the first season to feature no major hurricanes – storms of Category 3 intensity or higher on the Saffir–Simpson hurricane wind scale (SSHWS) – since
1977 Events January * January 8 – Three bombs explode in Moscow within 37 minutes, killing seven. The bombings are attributed to an Armenian separatist group. * January 10 – Mount Nyiragongo erupts in eastern Zaire (now the Democratic R ...
. The dates conventionally delimiting the period when most tropical cyclones form in the Pacific Ocean are May 15 in the Eastern Pacific Ocean and June 1 in the Central Pacific, with both seasons ending on November 30. The 2003 season featured 16 tropical storms between May 19 and October 26; 7 of these became hurricanes, which was then considered an average season. Damage across the basin reached US$129 million, and 23 people were killed by the storms. Despite the overall lack of activity, the season produced an unusually large number of
tropical cyclone A tropical cyclone is a rapidly rotating storm system characterized by a low-pressure center, a closed low-level atmospheric circulation, strong winds, and a spiral arrangement of thunderstorms that produce heavy rain and squalls. Depend ...
s that affected Mexico, with eight tropical cyclones making landfall on either side of Mexico, which was the second highest on record. Tropical Storm Carlos struck
Oaxaca Oaxaca ( , also , , from nci, Huāxyacac ), officially the Free and Sovereign State of Oaxaca ( es, Estado Libre y Soberano de Oaxaca), is one of the 32 states that compose the political divisions of Mexico, Federative Entities of Mexico. It is ...
in late June, resulting in nine fatalities. In late August, Hurricane Ignacio struck the Baja California Peninsula, killing four people and inflicting US$21 million in damage. In September, Hurricane Marty affected the same areas as Ignacio, and was responsible for 12 casualties and US$100 million in damage, making Marty the costliest and deadliest storm of the season. In October, Hurricanes Olaf and Nora struck western Mexico as tropical depressions, causing slight damage and one casualty. Activity in the Central Pacific was below average, with only one tropical depression forming in the basin and one hurricane entering the basin from the East Pacific. In mid-August, Hurricane Jimena passed just to the south of
Hawaii Hawaii ( ; haw, Hawaii or ) is a state in the Western United States, located in the Pacific Ocean about from the U.S. mainland. It is the only U.S. state outside North America, the only state that is an archipelago, and the only stat ...
; it was the first storm to directly threaten Hawaii in several years.


Seasonal forecasts

On May 16, 2003, the Servicio Meteorológico Nacional (SMN, National Meteorological Service) released their prediction for tropical cyclone activity in the eastern Pacific. A total of 15 named storms, 6 hurricanes, and 2 major hurricanes was forecast. Three later days,
National Oceanic and Atmospheric Administration The National Oceanic and Atmospheric Administration (abbreviated as NOAA ) is an United States scientific and regulatory agency within the United States Department of Commerce that forecasts weather, monitors oceanic and atmospheric conditio ...
(NOAA) issued its Central Pacific hurricane season forecast, calling for a slightly below-average level of activity due to the expected development of
La Niña La Niña (; ) is an oceanic and atmospheric phenomenon that is the colder counterpart of as part of the broader El Niño–Southern Oscillation (ENSO) climate pattern. The name ''La Niña'' originates from Spanish for "the girl", by an ...
. La Niña conditions generally restrict tropical cyclone development in the Northeast Pacific, which is the opposite of its effect in the Atlantic. On June 12, 2003, NOAA issued a forecast for the East Pacific hurricane season – the first time it had done so. The scientists expected that La Niña conditions would develop, and predicted a 50 percent chance of below normal activity and a 40 percent chance of near normal activity.


Seasonal summary

There were 16 named storms and 7 hurricanes during the 2003 Pacific hurricane season, which is comparable with the long-term averages. For the first time since 1977, there were no major hurricanes, where the long-term average is four. (Major hurricanes are storms of Category 3 intensity or higher on the Saffir–Simpson hurricane wind scale.) The first hurricane,
Ignacio Ignacio is a male Spanish language, Spanish and Galician Language, Galician name originating either from the Roman family name Egnatius (disambiguation), Egnatius, meaning born from the fire, of Etruscan origin, or from the Latin name "Ignatius" ...
, formed on August 24. This is the latest formation of the first hurricane of a season recorded in the East Pacific since reliable satellite observation began in 1966. The
accumulated cyclone energy Accumulated cyclone energy (ACE) is a metric used by various agencies to express the energy released by a tropical cyclone during its lifetime. It is calculating by summing the square of a tropical cyclone's maximum sustained winds, measured ever ...
(ACE) index for the 2003 Pacific hurricane season, at 53.4 units in the Eastern Pacific and 3.3 units in the Central Pacific, places the season among the top 10 least active seasons since 1971, when reliable records began. While the total activity was below average, there was an unusually high number of landfalls in Mexico. Eight Pacific and
North Atlantic tropical cyclone An Atlantic hurricane, also known as tropical storm or simply hurricane, is a tropical cyclone that forms in the Atlantic Ocean, primarily between the months of June and November. A hurricane differs from a cyclone or typhoon only on the basis of ...
s had a direct impact in Mexico in 2003, second only to 1971, when nine did so. This is well above the long-term average of 4.2 Atlantic and East Pacific storms affecting Mexico. Five Pacific storms impacted Mexico; Hurricanes Ignacio and Marty both made landfall in the state of
Baja California Sur Baja California Sur (; 'South Lower California'), officially the Free and Sovereign State of Baja California Sur ( es, Estado Libre y Soberano de Baja California Sur), is the least populated state and the 31st admitted state of the 32 federal ent ...
at hurricane intensity. Two other storms hit mainland Mexico as tropical storms and a third as a tropical depression. Three storms hit Mexico within a very short space of time: the Pacific hurricanes Nora and
Olaf Olaf or Olav (, , or British ; Old Norse: ''Áleifr'', ''Ólafr'', ''Óleifr'', ''Anleifr'') is a Scandinavian and German given name. It is presumably of Proto-Norse origin, reconstructed as ''*Anu-laibaz'', from ''anu'' "ancestor, grand-father" a ...
, and the
Atlantic The Atlantic Ocean is the second-largest of the world's five oceans, with an area of about . It covers approximately 20% of Earth's surface and about 29% of its water surface area. It is known to separate the " Old World" of Africa, Europe an ...
Tropical Storm Larry. As a result of the flooding caused by these storms, disaster areas were declared in 14 states. Activity in the Central Pacific was below average, with only one tropical depression forming in the basin and one hurricane entering the basin from the East Pacific. A third system, Tropical Storm Guillermo, weakened to a remnant low just to the east of the Central Pacific Hurricane Center's area of responsibility. Although activity was generally low, Hurricane Jimena was the first direct threat to the
Hawaiian Islands The Hawaiian Islands ( haw, Nā Mokupuni o Hawai‘i) are an archipelago of eight major islands, several atolls, and numerous smaller islets in the North Pacific Ocean, extending some from the island of Hawaii in the south to northernmost Kur ...
for several years and a hurricane watch was issued for the island of
Hawaii Hawaii ( ; haw, Hawaii or ) is a state in the Western United States, located in the Pacific Ocean about from the U.S. mainland. It is the only U.S. state outside North America, the only state that is an archipelago, and the only stat ...
. Jimena passed to the south, but still brought tropical-storm-force gusts and heavy rain to the island.


Systems


Tropical Storm Andres

An area of disturbed weather developed south of
Guatemala Guatemala ( ; ), officially the Republic of Guatemala ( es, República de Guatemala, links=no), is a country in Central America. It is bordered to the north and west by Mexico; to the northeast by Belize and the Caribbean; to the east by H ...
on May 10 within a broad
area of low pressure In meteorology, a low-pressure area, low area or low is a region where the atmospheric pressure is lower than that of surrounding locations. Low-pressure areas are commonly associated with inclement weather (such as cloudy, windy, with possible ...
. While tracking westward, the disturbance became classifiable by the
Dvorak technique The Dvorak technique (developed between 1969 and 1984 by Vernon Dvorak) is a widely used system to estimate tropical cyclone intensity (which includes tropical depression, tropical storm, and hurricane/typhoon/intense tropical cyclone intensitie ...
on May 18. Following the development of a closed low-level circulation, the disturbance was classified as a tropical depression around 18:00 UTC on May 19 roughly south-southeast of Cabo San Lucas. The depression strengthened into Tropical Storm Andres the next day. Despite increasing wind shear from an
anticyclone An anticyclone is a weather phenomenon defined as a large-scale circulation of winds around a central region of high atmospheric pressure, clockwise in the Northern Hemisphere and counterclockwise in the Southern Hemisphere as viewed from abov ...
causing the system's
convection Convection is single or multiphase fluid flow that occurs spontaneously due to the combined effects of material property heterogeneity and body forces on a fluid, most commonly density and gravity (see buoyancy). When the cause of the convec ...
to become displaced from the circulation, overall banding features improved, and Andres obtained its peak strength with winds of 60 mph (95 km/h) by 1800 UTC on May 20. A further increase in shear, soon followed by a decrease in ocean temperatures, caused Andres to weaken on May 25. It was downgraded to a tropical depression on May 25, became a
post-tropical cyclone A post-tropical cyclone is a former tropical cyclone that no longer possesses enough tropical qualities to be considered a tropical cyclone. The word may refer to a former tropical cyclone undergoing extratropical transition or a tropical cyclone ...
at 12:00 UTC that day, and dissipated on May 26 without affecting land.


Tropical Storm Blanca

In mid-June, a
tropical wave A tropical wave (also called easterly wave, tropical easterly wave, and African easterly wave), in and around the Atlantic Ocean, is a type of atmospheric trough, an elongated area of relatively low air pressure, oriented north to south, which ...
interacted with a lingering area of disturbed weather near the southwestern Mexican coast. Following an increase in organization, the combined disturbance was classified as a tropical depression at 00:00 UTC on June 17. The storm strengthened and became Tropical Storm Blanca 12 hours later. The storm moved slowly to the west and reached its peak on June 18 with 60 mph (95 km/h) winds; around this time, the cyclone displayed an
eye Eyes are organs of the visual system. They provide living organisms with vision, the ability to receive and process visual detail, as well as enabling several photo response functions that are independent of vision. Eyes detect light and conv ...
-like feature on
weather satellite A weather satellite or meteorological satellite is a type of Earth observation satellite that is primarily used to monitor the weather and climate of the Earth. Satellites can be polar orbiting (covering the entire Earth asynchronously), or ge ...
. Under the influence of strong shear from the southeast, Blanca began to weaken and move erratically, although intermittent bursts of deep convection continued. The storm degenerated to a tropical depression on June 20 and a post-tropical cyclone by 12:00 UTC on June 22. The remnants of Blanca were tracked for an additional two days. There were no effects from Blanca on land.


Tropical Storm Carlos

Tropical Storm Carlos formed from a tropical wave that crossed Central America on June 20. After gradually organizing, the wave was designated a tropical depression at 00:00 UTC on June 26 and further upgraded to Tropical Storm Carlos after twelve hours. The system moved generally northward and developed an eye, which was visible on Puerto Ángel radar. Carlos attained peak winds of 65 mph (100 km/h) shortly before making landfall about 60 miles (95 km) west of Puerto Escondido, or about 150 mi (245 km) east-southeast of
Acapulco Acapulco de Juárez (), commonly called Acapulco ( , also , nah, Acapolco), is a city and major seaport in the state of Guerrero on the Pacific Coast of Mexico, south of Mexico City. Acapulco is located on a deep, semicircular bay and has bee ...
. The storm rapidly deteriorated to a remnant low by 18:00 UTC on June 27, which persisted until dissipation on June 29. Carlos produced heavy rainfall across portions of southern Mexico, peaking at 337 mm (13.3 in) in two locations in Guerrero. In northwestern Oaxaca, seven people were killed when the heavy rainfall triggered a mudslide. Mudslides were reported elsewhere in the state, and about 30,000 homes were damaged. Throughout its path, the storm affected about 148,000 people. Monetary damage totaled 86.7 million pesos (2003 
MXN The Mexican peso ( symbol: $; code: MXN) is the currency of Mexico. Modern peso and dollar currencies have a common origin in the 16th–19th century Spanish dollar, most continuing to use its sign, "$". The current ISO 4217 code for the p ...
, US$8 million). In addition to the seven deaths across Oaxaca, two fishermen were reported missing.


Tropical Storm Dolores

A tropical wave entered the East Pacific on June 30 and four days later became classifiable by the Dvorak technique while south of Manzanillo, Colima. Convection coalesced around an area of low pressure as it moved west. The disturbance organized into Tropical Depression Four-E by 06:00 UTC on July 6 about to the south-southwest of
Baja California Sur Baja California Sur (; 'South Lower California'), officially the Free and Sovereign State of Baja California Sur ( es, Estado Libre y Soberano de Baja California Sur), is the least populated state and the 31st admitted state of the 32 federal ent ...
. It soon strengthened further, becoming Tropical Storm Dolores and reaching its peak intensity with winds of 40 mph (65 km/h) six hours later. This peak was short-lived as an increase in east-northeasterly shear stripped the storm of its convection and caused it weaken back to a tropical depression on July 7. The northwest motion caused by a mid-level
ridge A ridge or a mountain ridge is a geographical feature consisting of a chain of mountains or hills that form a continuous elevated crest for an extended distance. The sides of the ridge slope away from the narrow top on either side. The line ...
north and northeast of the cyclone brought it over colder water, and the system degenerated into a post-tropical remnant low around 06:00 UTC on July 8. Dissipation occurred the next day.


Tropical Storm Enrique

On July 6, a tropical wave entered the Northeastern Pacific Ocean. An area of low pressure developed and began to show signs of organization on July 9. The disturbance was designated a tropical depression around 12:00 UTC on July 10 while located about south-southeast of Baja California Sur. The storm became more organized and was named Tropical Storm Enrique 24 hours later as it tracked west-northwest. As Enrique strengthened and
upper-level outflow Outflow, in meteorology, is air that flows outwards from a storm system. It is associated with ridging, or anticyclonic flow. In the low levels of the troposphere, outflow radiates from thunderstorms in the form of a wedge of rain-cooled air, whi ...
expanded in all directions, forecasters briefly anticipated it to become a hurricane. The cyclone instead peaked with winds of 65 mph (100 km/h) early on July 12, after which point it encountered cool waters at a high latitude. Accordingly, Enrique rapidly weakened despite low wind shear. The storm degenerated into a remnant low around 00:00 UTC on July 14 and continued to move west before dissipating three days later.


Tropical Storm Felicia

A tropical wave passed over Central America on July 12 and began to show signs of organization south of the Gulf of Tehuantepec two days later, prompting Dvorak classifications on the system. As it continued to develop, the NHC designated the system a tropical depression at 18:00 UTC on July 17 about south of Manzanillo. Tracking westward on the southern periphery of a ridge, the depression became Tropical Storm Felicia twelve hours later, and forecasters anticipated further strengthening into a minimal hurricane. However, the storm remained disorganized and peaked with 50 mph (85 km/h) winds late on July 18. The storm gradually weakened under increasing shear as it headed west, weakening back to a tropical depression on July 20 and degenerating to a remnant low around 12:00 UTC on July 23. After a west-northwestward turn, the remnant low entered the Central Pacific, where it dissipated well east of Hawaii on July 24. Felicia did not impact land.


Tropical Storm Guillermo

A tropical wave entered the eastern north Pacific Ocean on August 1 and began to show signs of organization three days later, including the development of convection and the formation of a surface low. It acquired sufficient organization to be deemed a tropical depression by 06:00 UTC on August 7 roughly southwest of Cabo San Lucas. Although the system was forecast to remain under tropical storm intensity and ultimately dissipate, it became more organized as it moved to the west. At 00:00 UTC on August 8, the depression was upgraded to Tropical Storm Guillermo. Later that day, Guillermo reached its peak strength with 60 mph (95 km/h) winds. It maintained this strength for a full day, until outflow from the developing Tropical Storm Hilda about to its east disrupted its convection. Guillermo weakened into a tropical depression on August 11, and it became further disheveled as wind shear increased from the west. Associated deep convection collapsed on August 12, and Guillermo degenerated to a remnant low around 18:00 UTC. The remnant low entered the Central Pacific and interacted with another weak low-level circulation that would later become Tropical Depression One-C prior to dissipation on August 13.


Tropical Storm Hilda

On August 5, a tropical wave south of the Gulf of Tehuantepec began to produce persistent thunderstorm activity. The resultant disturbance moved west and developed into Tropical Depression Eight-E approximately to the south of Cabo San Lucas around 06:00 UTC on August 9. Owing to the system's impressive outflow across its western quadrant, forecasters predicted additional intensification to hurricane strength. The depression became Tropical Storm Hilda around 00:00 UTC on August 10, but it failed to intensify beyond winds of 40 mph (65 km/h) as easterly wind shear increased. Hilda moved west-northwest initially, but increasingly cooler waters weakened the cyclone, and low-level flow across the East Pacific turned the storm west. It dissipated on August 13 having never approached land.


Tropical Depression One-C

In mid-August, an area of active weather formed within the monsoon trough southeast of the Hawaiian Islands. At 18:00 UTC on August 15, this disturbance organized into Tropical Depression One-C. The incipient cyclone moved west and faced strong wind shear owing to a large upper-level trough to its northeast. Thus, One-C did not attain winds greater than 35 mph (55 km/h), and it instead degenerated to a remnant low around 00:00 UTC on August 17 after losing its associated convection. The system remained south of both the Hawaiian Islands and Johnston Atoll and eventually crossed into the West Pacific basin on August 20.


Hurricane Ignacio

A tropical wave spawned a distinct area of disturbed weather just south of Manzanillo on August 20. It moved northwest and became Tropical Depression Nine-E off Cabo Corrientes by 12:00 UTC on August 22 while it was located about 220 mi (345 km) southeast of Baja California Sur. Under the influence of favorable atmospheric conditions, the cyclone steadily strengthened and obtained tropical storm status on August 23. Early on August 24, Ignacio attained hurricane strength, marking the latest formation of the first hurricane of a season recorded in the East Pacific since reliable satellite observation began in 1966. Ignacio reached its peak intensity on August 26 as a Category 2 hurricane with winds of 105 mph (165 km/h). The storm tracked northwest across the southern Gulf of California and began to weaken due to land interaction, ultimately making landfall with winds of 80 mph (130 km/h) just to the east of
La Paz La Paz (), officially known as Nuestra Señora de La Paz (Spanish pronunciation: ), is the seat of government of the Bolivia, Plurinational State of Bolivia. With an estimated 816,044 residents as of 2020, La Paz is the List of Bolivian cities ...
. Ignacio weakened once inland and dissipated early on August 28 over central
Baja California Baja California (; 'Lower California'), officially the Free and Sovereign State of Baja California ( es, Estado Libre y Soberano de Baja California), is a state in Mexico. It is the northernmost and westernmost of the 32 federal entities of Mex ...
. The slow motion of Ignacio produced heavy rainfall across the southern portion of the Baja California Peninsula, including a peak 24‑hour total of 7.25 in (184 mm) in
Ciudad Constitución Ciudad Constitución is a city in the Mexican state of Baja California Sur. It is the seat of Comondú Municipality. As of 2019, the city had a total population of 45,888 inhabitants. Ciudad Constitución is a small city which serves as a gateway ...
, which was beneficial in ending an ongoing drought but resulted in severe flooding. The passage of the hurricane left citizens in Todos Santos without power for around 24 hours. It forced the closure of roads and airports in La Paz. Overall, Ignacio was responsible for approximately US$21 million in damage. Four people were killed by the storm, including two rescue workers that drowned in the flood waters brought by the storm, and some 10,000 people were evacuated to shelters. Six
municipalities A municipality is usually a single administrative division having corporate status and powers of self-government or jurisdiction as granted by national and regional laws to which it is subordinate. The term ''municipality'' may also mean the go ...
in Baja California Sur were declared disaster areas. The remnants of Ignacio produced thunderstorm activity in high terrain areas of central
California California is a U.S. state, state in the Western United States, located along the West Coast of the United States, Pacific Coast. With nearly 39.2million residents across a total area of approximately , it is the List of states and territori ...
, resulting in 3,500 customers losing power, over 300 lightning strikes, and 14 forest fires.


Hurricane Jimena

At 06:00 UTC on August 28, an area of disturbed weather within the
Intertropical Convergence Zone The Intertropical Convergence Zone (ITCZ ), known by sailors as the doldrums or the calms because of its monotonous windless weather, is the area where the northeast and the southeast trade winds converge. It encircles Earth near the thermal e ...
developed into Tropical Depression Ten-E some 1,725 miles (2,775 km) east of the Hawaiian Islands. The storm began to steadily intensify as it tracked over warm ocean waters, attaining tropical storm status six hours later. Shortly after developing an eye, Jimena was upgraded into a hurricane on August 29. The storm moved to the west, entering the Central Pacific as it continued to strengthen. After reaching its peak strength with winds about 800 mi (1,300 km) to the east of Hawaii, Jimena began to weaken as a result of increased shear. The storm passed about 120 mi (195 km) to the south of the southern tip of Big Island on September 1 as it fell below hurricane strength. Further weakening brought the cyclone back to tropical depression intensity on September 3. It crossed the International Date Line before dissipating on September 5. Forecasters at the Central Pacific Hurricane Center issued a hurricane watch for the Big Island on August 31 at 00:00 UTC. The storm brought 6 to 10 in (150 to 250 mm) of rain and 11 ft (3.3 m) surf to the island of Hawaii, resulting in minor flooding on the eastern side of the Big Island. Wind gusts reached , which knocked down trees and damaged power lines, resulting in 1,300 residents without electricity.


Tropical Storm Kevin

A tropical wave entered the East Pacific on August 21 but remained devoid of any convective activity until August 28. A broad surface low developed on August 29 but its associated convective activity remained poorly organized. Tracking west-northwest around the western periphery of a ridge over Mexico, the disturbance began receiving Dvorak classifications on September 3. By 12:00 UTC that day, an increase in organization prompted the designation of Tropical Depression Eleven-E roughly south-southwest of the tip of Baja California. After formation, the system was inhibited by its broad circulation and its positioning near cooler waters. Nevertheless, the depression reached tropical storm strength on September 4, and Kevin attained peak winds of 40 mph (65 km/h) then. This peak intensity lasted for just six hours as the cyclone weakened back to a tropical depression. At 06:00 UTC on September 6, the system degenerated to a remnant low, which persisted for four days before dissipation. Tropical Storm Kevin did not impact land.


Hurricane Linda

A tropical wave entered the East Pacific on September 6. Convection began to increase along its axis on September 9; three days later, a broad surface low developed. Around 12:00 UTC on September 13, the disturbance organized into Tropical Depression Twelve-E about to the southwest of Manzanillo. The cyclone moved to the northwest and was classified as a tropical storm at 12:00 UTC on September 14. Linda steadily intensified as rainbands increased and outflow expanded. At 12:00 UTC on September 15, Linda was upgraded to a hurricane and reached its peak strength of 75 mph (120 km/h). After 12 hours at this intensity, the cyclone began to weaken, turning west and then southwest as it did so. Linda became a tropical depression on September 17 and degenerated to a remnant low around 00:00 UTC the next day. It persisted for a few days before dissipation on September 23. Linda did not affect land.


Hurricane Marty

A tropical wave moved into the East Pacific on September 10, and the convection associated with it gradually increased. At 18:00 UTC on September 18, while the system was positioned about south-southeast of Cabo San Lucas, it organized into Tropical Depression Thirteen-E. The depression strengthened as it headed toward the Baja California Peninsula, becoming a tropical storm after 12 hours and a hurricane around 00:00 UTC on September 21. High pressure to its west facilitated Marty's development, while favorable conditions allowed it to become a Category 2 hurricane with peak winds of 100 mph (155 km/h) early on September 22. Marty then moved northward at an increased speed before making landfall about 10 mi (15 km) northeast of Cabo San Lucas. After moving over the southern tip of the peninsula, Marty moved up the western coast of the
Gulf of California The Gulf of California ( es, Golfo de California), also known as the Sea of Cortés (''Mar de Cortés'') or Sea of Cortez, or less commonly as the Vermilion Sea (''Mar Bermejo''), is a marginal sea of the Pacific Ocean that separates the Baja Ca ...
, gradually weakening as it did so. The storm weakened to a tropical storm on September 23 and a tropical depression later that day. After making a second landfall near
Puerto Peñasco Puerto Peñasco ( ood, Geʼe Ṣuidagĭ) is a small city located in Puerto Peñasco Municipality in the northwest of the Mexican state of Sonora, from the border with the U.S. state of Arizona. According to the 2020 census, it has a population o ...
as a tropical depression around 18:00 UTC on September 24, the system degenerated to a remnant low six hours later. Its remnants meandered over the northern Gulf of California prior to dissipating two days later. Hurricane Marty was the deadliest storm of the 2003 Pacific hurricane season and was responsible for 12 deaths. A 5-foot (1.5 m)
storm surge A storm surge, storm flood, tidal surge, or storm tide is a coastal flood or tsunami-like phenomenon of rising water commonly associated with low-pressure weather systems, such as cyclones. It is measured as the rise in water level above the n ...
flooded parts of
La Paz La Paz (), officially known as Nuestra Señora de La Paz (Spanish pronunciation: ), is the seat of government of the Bolivia, Plurinational State of Bolivia. With an estimated 816,044 residents as of 2020, La Paz is the List of Bolivian cities ...
, and sank 35
yacht A yacht is a sailing or power vessel used for pleasure, cruising, or racing. There is no standard definition, though the term generally applies to vessels with a cabin intended for overnight use. To be termed a , as opposed to a , such a pleasu ...
s moored in various ports. Five people drowned after their cars were swept away by floodwaters while trying to cross a flooded stream. The floods also damaged about 4,000 homes. Two deaths also occurred when a tree fell on a car in
Sinaloa Sinaloa (), officially the Estado Libre y Soberano de Sinaloa ( en, Free and Sovereign State of Sinaloa), is one of the 31 states which, along with Mexico City, comprise the Administrative divisions of Mexico, Federal Entities of Mexico. It is d ...
. Overall, 6,000 people were affected and total damage from the storm was estimated at US$100 million, making Marty the costliest East Pacific storm of the year. The outer bands of the cyclone brought dropped locally heavy rains to extreme southwestern
Arizona Arizona ( ; nv, Hoozdo Hahoodzo ; ood, Alĭ ṣonak ) is a state in the Southwestern United States. It is the 6th largest and the 14th most populous of the 50 states. Its capital and largest city is Phoenix. Arizona is part of the Fou ...
, but there were no reports of flooding.


Hurricane Nora

A tropical wave moved over Central America on September 25 and tracked parallel to the Mexican coast. It became more organized on October 1 and developed into Tropical Depression Fourteen-E roughly the south of the Baja California Peninsula around 18:00 UTC. The system continued to strengthen as it moved northwest in favorable conditions, becoming Tropical Storm Nora 12 hours later. On October 4, it became a hurricane and reached its peak as a Category 2 hurricane with 105 mph (165 km/h) winds. The influence of a mid-level
trough Trough may refer to: In science * Trough (geology), a long depression less steep than a trench * Trough (meteorology), an elongated region of low atmospheric pressure * Trough (physics), the lowest point on a wave * Trough level (medicine), the l ...
, in conjunction with outflow from Hurricane Olaf, caused Nora to veer sharply eastward and begin to rapidly weaken. The cyclone struck the Mexico coastline just north of
Mazatlán Mazatlán () is a city in the Mexican state of Sinaloa. The city serves as the municipal seat for the surrounding ''municipio'', known as the Mazatlán Municipality. It is located at on the Pacific coast, across from the southernmost tip of ...
with winds of 30 mph (45 km/h) at 06:00 UTC on October 9. Nora dissipated over land six hours later. The storm dropped locally heavy rainfall near landfall, peaking at 3.75 in (95.3 mm) in Mazatlán. Moisture from the remnants of Nora and Olaf interacted with an upper-level low to produce heavy rainfall across Texas, causing flooding near
Waco Waco ( ) is the county seat of McLennan County, Texas, United States. It is situated along the Brazos River and I-35, halfway between Dallas and Austin. The city had a 2020 population of 138,486, making it the 22nd-most populous city in the st ...
that forced a family to evacuate.


Hurricane Olaf

A tropical wave located to the south-southeast of Acapulco spawned a low-level circulation on October 2, which developed into Tropical Depression Fifteen-E by 06:00 UTC the next day approximately south-southeast of Acapulco. The depression strengthened into Tropical Storm Olaf six hours after forming as it moved to the northwest in a low shear environment. Olaf reached its peak strength as a minimal hurricane with 75 mph (120 km/h) winds around 12:00 UTC on October 5 as it developed a partial eyewall. The storm soon became disorganized and was only a hurricane for six hours as increased wind shear took its toll on the cyclone. Olaf moved erratically before ultimately accelerating northward toward the Mexico coast, and it made landfall about 20 miles (30 km) west of Manzanillo with winds of 60 mph (95 km/h) on October 7. The system weakened as it moved inland, falling to tropical depression intensity late on October 7 and dissipating early the next day. Since Olaf struck the Mexico coastline as a more coherent system than Nora, it produced significantly more rainfall across the region, resulting in severe flooding in the states of
Jalisco Jalisco (, , ; Nahuatl: Xalixco), officially the Free and Sovereign State of Jalisco ( es, Estado Libre y Soberano de Jalisco ; Nahuatl: Tlahtohcayotl Xalixco), is one of the 31 states which, along with Mexico City, comprise the 32 Federal En ...
and
Guanajuato Guanajuato (), officially the Free and Sovereign State of Guanajuato ( es, Estado Libre y Soberano de Guanajuato), is one of the 32 states that make up the Federal Entities of Mexico. It is divided into 46 municipalities and its capital city i ...
. These rains damaged crops, roads, and over 12,000 houses. One fatality was reported.


Hurricane Patricia

The final storm of the 2003 season began as a tropical wave that crossed Central America on October 17. The incipient disturbance slowly organized as it moved west-northwest south a ridge, organizing into a tropical depression around 12:00 UTC on October 20 about south of Acapulco. Six hours later, it intensified into Tropical Storm Patricia while paralleling the Mexico coastline well offshore. As banding features increased in association with the cyclone, and as it developed an eye, Patricia became the season's final hurricane around 12:00 UTC on October 21. It peaked with winds of 80 mph (130 km/h) twelve hours later, despite predictions of a much stronger storm. On October 22, the cyclone encountered wind shear associated with an upper-level trough near Baja California, and its circulation quickly became displaced from associated thunderstorm activity. It fell below hurricane strength that day but fluctuated in intensity through October 25. Early that day, Patricia weakened to a tropical depression, and by 06:00 UTC on October 26, it degenerated to a remnant low. The low turned west and dissipated twelve hours later.


Other systems

On January 11, the JTWC began monitoring the disturbance that would eventually develop into Yanyan near the
International Date Line The International Date Line (IDL) is an internationally accepted demarcation on the surface of Earth, running between the South and North Poles and serving as the boundary between one calendar day and the next. It passes through the Pacific O ...
.


Storm names

The following list was used to name storms that formed in the Northeast Pacific in 2003. Names that were not assigned are marked in gray as unused. No names were
retired Retirement is the withdrawal from one's position or occupation or from one's active working life. A person may also semi-retire by reducing work hours or workload. Many people choose to retire when they are elderly or incapable of doing their j ...
by the
World Meteorological Organization The World Meteorological Organization (WMO) is a specialized agency of the United Nations responsible for promoting international cooperation on atmospheric science, climatology, hydrology and geophysics. The WMO originated from the Internati ...
, therefore this list was used again in the 2009 season. The same list was used for the 1997 season except for Patricia, which replaced Pauline. For storms that form in the Central Pacific Hurricane Center's area of responsibility (between 140°W and the
International Date Line The International Date Line (IDL) is an internationally accepted demarcation on the surface of Earth, running between the South and North Poles and serving as the boundary between one calendar day and the next. It passes through the Pacific O ...
), names are used in a series of four rotating lists.


Season effects

The table of storms that formed in the 2003 Pacific hurricane season includes their duration, names, intensities, areas affected, damages, and death totals. Damage and deaths include totals while the storm was extratropical, a wave, or a low.


See also

*
Tropical cyclones in 2003 During 2003, tropical cyclones formed within seven different tropical cyclone basins, located within various parts of the Atlantic, Pacific and Indian Oceans. During the year, a total of 129 systems formed with 85 of these developing further and ...
* List of Pacific hurricanes *
Pacific hurricane season A Pacific hurricane is a mature tropical cyclone that develops within the northeastern and central Pacific Ocean to the east of 180°W, north of the equator. For tropical cyclone warning purposes, the northern Pacific is divided into three regio ...
*
2003 Atlantic hurricane season The 2003 Atlantic hurricane season was a highly active Atlantic hurricane season with tropical activity before and after the official bounds of the season—the first such occurrence since the 1970 season. The season produced 21 tropical cyclo ...
*
2003 Pacific typhoon season The 2003 Pacific typhoon season was a slightly below average yearlong period of tropical cyclogenesis exhibiting the development of 45 tropical depressions, of which 21 became named storms; of those, 14 became typhoons. Though every month with t ...
*
2003 North Indian Ocean cyclone season The 2003 North Indian Ocean cyclone season was the last season that tropical cyclones were not publicly labeled by India Meteorological Department (IMD). Also was mostly focused in the Bay of Bengal, where six of the seven depressions develop ...
* South-West Indian Ocean cyclone seasons: 2002–03, 2003–04 * Australian region cyclone seasons: 2002–03, 2003–04 * South Pacific cyclone seasons: 2002–03, 2003–04


Notes


References


External links


National Hurricane Center Website

National Hurricane Center's Eastern Pacific Tropical Weather Outlook

Servicio Meteorológico Nacional Website

NHC's 2003 tropical cyclone advisory archive



Central Pacific Hurricane Center's 2003 season summary

Mariners Weather Log: Summary of the 2003 Pacific hurricane season
{{DEFAULTSORT:2003 Pacific Hurricane Season Pacific hurricane seasons 2003 EPac