Severe Tropical Cyclone Freda was an intense
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 ...
that developed during the
2012–13 South Pacific cyclone season and affected
New Caledonia
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and the
Solomon Islands
Solomon Islands is an island country consisting of six major islands and over 900 smaller islands in Oceania, to the east of Papua New Guinea and north-west of Vanuatu. It has a land area of , and a population of approx. 700,000. Its capita ...
as a weak tropical cyclone. The system that was to become Cyclone Freda was first classified on 26 December 2012, as a
tropical disturbance
Tropical cyclones are ranked on one of five tropical cyclone intensity scales, according to their maximum sustained winds and which tropical cyclone basins they are located in. Only a few scales of classifications are used officially by the mete ...
. It gradually developed and was classified as a tropical cyclone and named Freda as it passed through the Solomon Islands on 28 December.
Within the Solomon Islands, no casualties and a moderate amount of damage were reported. In New Caledonia however, severe damage was reported after Freda had affected the territory around the new year of 2012–13. At least one person died and another went missing in New Caledonia during Freda's onslaught. As Freda passed near New Caledonia, it started to rapidly weaken and became a tropical depression by 1 January, before eventually dissipating three days later.
Meteorological history
On 26 December 2012, the
Fiji Meteorological Service
The Fiji Meteorological Service (FMS) is a Department of the government of Fiji responsible for providing weather forecasts and is based on the grounds of Nadi Airport in Nadi. The current director of Fiji Meteorological Service is Misaeli Funaki. ...
's
Regional Specialized Meteorological Centre
A Regional Specialized Meteorological Centre (RSMC) is responsible for the distribution of information, advisories, and warnings regarding the specific program they have a part of, agreed by consensus at the World Meteorological Organization as p ...
in
Nadi
Nadi (pronounced ) is the third-largest conurbation in Fiji. It is located on the western side of the main island of Viti Levu, and had a population of 42,284 at the most recent census, in 2007. A 2012 estimate showed that the population had ...
(RSMC Nadi) reported that Tropical Disturbance 05F had developed within an area of low to moderate vertical
windshear
Wind shear (or windshear), sometimes referred to as wind gradient, is a difference in wind speed and/or direction over a relatively short distance in the atmosphere. Atmospheric wind shear is normally described as either vertical or horizontal ...
about 1075 km (670 mi) to the north of
Port Vila, Vanuatu
Port Vila (french: Port-Vila), or simply Vila (; french: Vila; bi, Vila ), is the capital and largest city of Vanuatu. It is located on the island of Efate.
Its population in the last census (2009) was 44,040, an increase of 35% on the pr ...
.
During that day, as the system moved towards the west, convection surrounding the centre and the general organization of the system increased, before RSMC Nadi reported that the system had developed into a tropical depression. During 27 December, the depression started to move towards the southwest and the southern Solomon Islands, as convection surrounding the centre and the general organization of the system continued to increase. The system then passed near the Southern Solomon Islands early the next day, before the United States
Joint Typhoon Warning Center
The Joint typhoon Warning Center (JTWC) is a joint United States Navy – United States Air Force command in Pearl Harbor, Hawaii. The JTWC is responsible for the issuing of tropical cyclone warnings in the North-West Pacific Ocean, South P ...
(JTWC) designated the depression as Tropical Cyclone 06P and initiated advisories on it, as the system had become equivalent to a tropical storm.
Later that day, RSMC Nadi reported that the depression had become a category one tropical cyclone on the
Australian tropical cyclone intensity scale
Tropical cyclones are ranked on one of five tropical cyclone intensity scales, according to their maximum sustained winds and which tropical cyclone basins they are located in. Only a few scales of classifications are used officially by the mete ...
and named it Freda, as it continued to move towards the southwest and passed near
Rennell Island
Rennell Island, locally known as Mugaba, is the main island of two inhabited islands that make up the Rennell and Bellona Province in the nation state of Solomon Islands. Rennell Island has a land area of that is about long and wide. It is th ...
.
During 29 December, Freda continued to move towards the south-southwest, crossed 160°E and briefly moved into the
Australian region, before it started to move towards the south-southeast along the western edge of the
subtropical ridge
The horse latitudes are the latitudes about 30 degrees north and south of the Equator. They are characterized by sunny skies, calm winds, and very little precipitation. They are also known as Subtropics, subtropical ridges, or highs. It is a h ...
of
high pressure
In science and engineering the study of high pressure examines its effects on materials and the design and construction of devices, such as a diamond anvil cell, which can create high pressure. By ''high pressure'' is usually meant pressures of th ...
and moved back into the South Pacific basin.
During that day the system developed a wide eye while significantly intensifying further, with RSMC Nadi reporting by 18:00 UTC that Freda had become a category 3 severe tropical cyclone with 10-minute sustained winds of 150 km/h (95 mph).
During 30 December, Freda continued to intensify further before RSMC Nadi reported at 12:00 UTC that Freda had peaked with 10-minute sustained windspeeds of , which made it a category 4 severe tropical cyclone.
The JTWC subsequently followed suit six hours later and reported that Freda had peaked with 1-minute sustained windspeeds of , which made it equivalent to a category 3 hurricane on the
Saffir-Simpson hurricane scale.
After it had peaked, Freda quickly weakened as it continued to move towards the south-southeast, as vertical windshear over the system increased and caused convection over Freda's northern semicircle to gradually wear away.
By 00:00 UTC on 1 January, the JTWC reported that Freda had become equivalent to a category 1 hurricane, while RSMC Nadi reported that the system had weakened into a category 2 tropical cyclone.
Throughout that day, Freda continued to weaken. At 18:00 UTC, after deep convection had become displaced to the east of the low level circulation center, RSMC Nadi reported that the cyclone had weakened into a tropical depression. During the next day, the JTWC issued their final advisory on the system after the low level circulation center had become fully exposed before the remnant tropical depression crossed the northern part of New Caledonia's
Grande Terre island.
After crossing New Caledonia's biggest island, Freda started to move towards the southeast between Grande Terre and the Loyalty Islands, while the JTWC reported that Freda had become a subtropical cyclone, as it was positioned under a strong
subtropical westerly flow.
The remnant tropical depression was subsequently last noted on 4 January, as it dissipated about to the southwest of Nadi, Fiji.
Preparations and impact
The Solomon Islands
Cyclone Freda caused a moderate amount of damage when it affected the Solomon Islands between 27 and 30 December, with wind speeds of up to .
Ahead of the system reaching the country, the Solomon Islands Meteorological Service issued various tropical disturbance and
tropical cyclone watches and warnings
Tropical cyclone warnings and watches are alerts issued by national weather forecasting bodies to coastal areas threatened by the imminent approach of a tropical cyclone of tropical storm or hurricane intensity. They are notices to the local popul ...
for parts of the archipelago, including the islands of Makira, Malaita, Guadalcanal, Temotu, Sikaiana, Rennell and Bellona. Within the Solomon Islands, winds of up to whipped roofs of houses and flattened trees, while heavy rain caused rivers to rise and flood. The provinces of Makira and Ulawa were the worst affected, with damage to infrastructure, food gardens and shelters reported.
Several food gardens and houses were also destroyed on the island of Guadalcanal, while other provinces including Malaita, Temotu, Isabel and Central provinces reported minimal damage or no damage at all.
Freda brought strong winds and rain that flattened trees and lifted roofs.
Makira Island was hardest hit, with rising rivers flooding some areas.
Most of the damage in the Solomon Islands was from widespread flooding in remote outlying islands, while there were no reports of any casualties.
On 31 December, the Solomon Islands National Disaster Management Office approved a $3.7 million budget for work programmes, transport, logistics and food relief supplies to deal with the damage left behind by Cyclone Freda.
New Caledonia
On 29 December, the French High Commissioner for New Caledonia placed the whole of the archipelago under a pre-alert, as Freda was expected to generate heavy rain and disrupt New Year's Eve celebrations.
Within New Caledonia, the strongest winds were observed on Grand Terre's south-southwestern coast, with a maximum gust of and a rainfall amount of were recorded at the Goro weather station.
One man drowned in high seas whipped up by Freda, while another went missing after attempting to cross a swollen river.
See also
*
Tropical cyclones in 2012
During 2012, 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 128 tropical cyclones had formed this year to date. 85 tr ...
*
Cyclone Rewa
Severe Tropical Cyclone Rewa affected six countries and caused 22 deaths on its 28-day journey across the South Pacific Ocean in December 1993 and January 1994. Cyclone Rewa developed from a tropical disturbance on 28 December sout ...
(1993–94) – a strong, long-lived and erratic tropical cyclone which also affected New Caledonia in 1994
References
External links
{{DEFAULTSORT:Freda (2012)
2012–13 South Pacific cyclone season
Category 3 Australian region cyclones
Category 4 South Pacific cyclones
Tropical cyclones in the Solomon Islands
Tropical cyclones in New Caledonia
2012 in the Solomon Islands
2012 in New Caledonia
2013 in the Solomon Islands
Retired South Pacific cyclones
Freda Freda may refer to:
* Frida (given name), also spelled ''Freda''
* Freda (surname)
* Freda (character) from The Lord of the Rings film trilogy
* Ford Freda, a motor vehicle introduced in the Japanese market in 1995
* Freda Sandstone, a member of t ...
Freda Freda may refer to:
* Frida (given name), also spelled ''Freda''
* Freda (surname)
* Freda (character) from The Lord of the Rings film trilogy
* Ford Freda, a motor vehicle introduced in the Japanese market in 1995
* Freda Sandstone, a member of t ...