1947 Glazier–Higgins–Woodward Tornado Outbreak
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From April 9–11, 1947, a significant
tornado outbreak __NOTOC__ A tornado outbreak is the occurrence of multiple tornadoes spawned by the same synoptic scale weather system. The number of tornadoes required to qualify as an outbreak typically are at least six to ten, with at least two rotational l ...
produced catastrophic effects over portions of the southern Great Plains, in the contiguous United States. The outbreak generated at least 12, and possibly 17 or more,
tornado A tornado is a violently rotating column of air that is in contact with both the surface of the Earth and a cumulonimbus cloud or, in rare cases, the base of a cumulus cloud. It is often referred to as a twister, whirlwind or cyclone, altho ...
es, many of which were significant. On Wednesday, April 9, a series of related tornadoes spawned by a single
supercell A supercell is a thunderstorm characterized by the presence of a mesocyclone: a deep, persistently rotating updraft. Due to this, these storms are sometimes referred to as rotating thunderstorms. Of the four classifications of thunderstorms ( ...
, dubbed the Glazier–Higgins–Woodward tornadoes, swept through the
U.S. state In the United States, a state is a constituent political entity, of which there are 50. Bound together in a political union, each state holds governmental jurisdiction over a separate and defined geographic territory where it shares its sove ...
s of
Texas Texas (, ; Spanish: ''Texas'', ''Tejas'') is a state in the South Central region of the United States. At 268,596 square miles (695,662 km2), and with more than 29.1 million residents in 2020, it is the second-largest U.S. state by ...
, Oklahoma, and
Kansas Kansas () is a state in the Midwestern United States. Its capital is Topeka, and its largest city is Wichita. Kansas is a landlocked state bordered by Nebraska to the north; Missouri to the east; Oklahoma to the south; and Colorado to th ...
. Most of the damage and all the deaths are still blamed on one large tornado, known as the Glazier–Higgins–Woodward tornado, that traveled from Texas to Oklahoma, beginning over the
South Plains The South Plains is a region in northwest Texas, consisting of 24 counties. The main crop is cotton. Counties The South Plains region includes 24 counties: The northernmost four (Parmer, Castro, Swisher, and Briscoe) are also considered to be p ...
. This event, up to nearly in width, was often compared to the Tri-State tornado, because it was originally thought to have left a path, was similarly large and intense for much of its path, and was also retroactively rated F5 on the modern-day Fujita scale, but it is now believed to have been part of a
family Family (from la, familia) is a group of people related either by consanguinity (by recognized birth) or affinity (by marriage or other relationship). The purpose of the family is to maintain the well-being of its members and of society. Idea ...
of nine or 10 tornadoes.


Background

Early on April 9, the
United States Weather Bureau The National Weather Service (NWS) is an agency of the United States federal government that is tasked with providing weather forecasts, warnings of hazardous weather, and other weather-related products to organizations and the public for the ...
in Amarillo, Texas, forecast late-afternoon temperatures of about over the
Texas panhandle The Texas Panhandle is a region of the U.S. state of Texas consisting of the northernmost 26 counties in the state. The panhandle is a square-shaped area bordered by New Mexico to the west and Oklahoma to the north and east. It is adjacent to ...
. At the time, dense, low-lying
stratus Stratus may refer to: Weather *Stratus cloud, a cloud type **Nimbostratus cloud, a cloud type **Stratocumulus cloud, a cloud type **Altostratus cloud, a cloud type **Altostratus undulatus cloud, a cloud type **Cirrostratus cloud, a cloud type Mus ...
and a layer of fog were present, with temperatures ranging from the upper 40s to low 50s °F. However, an approaching
warm front A warm front is a density discontinuity located at the leading edge of a homogeneous warm air mass, and is typically located on the equator-facing edge of an isotherm gradient. Warm fronts lie within broader troughs of low pressure than cold f ...
—then extended from
Sherman, Texas Sherman is a U.S. city in and the county seat of Grayson County, Texas. The city's population in 2020 was 43,645. It is one of the two principal cities in the Sherman–Denison metropolitan statistical area, and it is part of the Texoma region ...
, to
Raton, New Mexico Raton ( ) is a city and the county seat of Colfax County in northeastern New Mexico. The city is located just south of Raton Pass. The city is also located about 6.5 miles south of the New Mexico–Colorado border and 85 miles west of Texas. His ...
—would later combine with a robust trough aloft to enhance conditions for
severe weather Severe weather is any dangerous meteorological phenomenon with the potential to cause damage, serious social disruption, or loss of human life. Types of severe weather phenomena vary, depending on the latitude, altitude, topography, and atmos ...
. In tandem with this, a
low-pressure area 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 ...
over northeastern
New Mexico ) , population_demonym = New Mexican ( es, Neomexicano, Neomejicano, Nuevo Mexicano) , seat = Santa Fe , LargestCity = Albuquerque , LargestMetro = Tiguex , OfficialLang = None , Languages = English, Spanish ( New Mexican), Navajo, Ke ...
, along with an attendant
dry line A dry line (also called a dew point line, or Marfa front, after Marfa, Texas) is a line across a continent that separates moist air and dry air. One of the most prominent examples of such a separation occurs in central North America, especially ...
, would gradually eject, leading to stronger low-level
wind shear 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 horizont ...
and more pronounced lapse rates. Around 2:00 p.m. CST (18:00  UTC), helicity was near 135 m2/s2, but would decline afterward. As it did so, however, an unexpected decrease in cloud cover allowed for greater-than-expected diurnal heating, leading to a substantial rise in
atmospheric instability Atmospheric instability is a condition where the Earth's atmosphere is generally considered to be unstable and as a result the weather is subjected to a high degree of variability through distance and time. Atmospheric stability is a measure of t ...
and associated
buoyancy Buoyancy (), or upthrust, is an upward force exerted by a fluid that opposes the weight of a partially or fully immersed object. In a column of fluid, pressure increases with depth as a result of the weight of the overlying fluid. Thus the ...
. By 6:30 p.m. CST (00:30 UTC), the low-pressure center was situated over southern Colorado, and a jet stream existed above sea level. Surface-based temperatures quickly reached the upper 60s °F. In the
mixed layer The oceanic or limnological mixed layer is a layer in which active turbulence has homogenized some range of depths. The surface mixed layer is a layer where this turbulence is generated by winds, surface heat fluxes, or processes such as evaporat ...
, the
convective available potential energy In meteorology, convective available potential energy (commonly abbreviated as CAPE), is the integrated amount of work that the upward (positive) buoyancy force would perform on a given mass of air (called an air parcel) if it rose vertically thro ...
(CAPE) rose above 1,100 j/kg, and the
lifted condensation level The lifted condensation level or lifting condensation level (LCL) is formally defined as the height at which the relative humidity (RH) of an air parcel will reach 100% with respect to liquid water when it is cooled by dry adiabatic lifting. The ...
(LCL) was just above ground level, along with a
level of free convection The level of free convection (LFC) is the altitude in the atmosphere where an air parcel lifted adiabatically until saturation becomes warmer than the environment at the same level, so that positive buoyancy can initiate self-sustained convection. ...
(LFC) of . Mixed-layer
convective inhibition Convective inhibition (CIN or CINH) is a numerical measure in meteorology that indicates the amount of energy that will prevent an air parcel from rising from the surface to the level of free convection. CIN is the amount of energy required to ov ...
by then had decreased, offsetting the loss of helicity, and the presence of the warm front acted in concert with the aforementioned factors to favor
supercell A supercell is a thunderstorm characterized by the presence of a mesocyclone: a deep, persistently rotating updraft. Due to this, these storms are sometimes referred to as rotating thunderstorms. Of the four classifications of thunderstorms ( ...
s capable of generating strong tornadoes. Gusts of attended the passage of a
cold front A cold front is the leading edge of a cooler mass of air at ground level that replaces a warmer mass of air and lies within a pronounced surface trough of low pressure. It often forms behind an extratropical cyclone (to the west in the Northern ...
overnight.


Confirmed tornadoes

*A possible tornado may have flattened a barn just south of Carpenter, Oklahoma, on April 9. Prior to 1990, there is a likely undercount of tornadoes, particularly E/F0–1, with reports of weaker tornadoes becoming more common as population increased. A sharp increase in the annual average E/F0–1 count by approximately 200 tornadoes was noted upon the implementation of
NEXRAD NEXRAD or Nexrad (Next-Generation Radar) is a network of 160 high-resolution S-band Doppler weather radars operated by the National Weather Service (NWS), an agency of the National Oceanic and Atmospheric Administration (NOAA) within the United S ...
Doppler weather radar Weather radar, also called weather surveillance radar (WSR) and Doppler weather radar, is a type of radar used to locate precipitation, calculate its motion, and estimate its type (rain, snow, hail etc.). Modern weather radars are mostly pulse- ...
in 1990–1991. 1974 marked the first year where significant tornado (E/F2+) counts became homogenous with contemporary values, attributed to the consistent implementation of
Fujita scale The Fujita scale (F-Scale; ), or Fujita–Pearson scale (FPP scale), is a scale for rating tornado intensity, based primarily on the damage tornadoes inflict on human-built structures and vegetation. The official Fujita scale category is deter ...
assessments. Numerous discrepancies on the details of tornadoes in this outbreak exist between sources. The total count of tornadoes and ratings differs from various agencies accordingly. The list below documents information from the most contemporary official sources alongside assessments from tornado historian
Thomas P. Grazulis Thomas P. Grazulis (born August 17, 1942) is an American meteorologist who has written extensively about tornadoes and is head of ''The Tornado Project''. Biography Early career Thomas Grazulis grew up in Worcester, Massachusetts and first c ...
.


Glazier–Higgins, Texas/Woodward, Oklahoma

Moving at an average of , this extremely large and violent tornado was first confirmed near Canadian, Texas. When it struck the tiny town of
Glazier A glazier is a tradesman responsible for cutting, installing, and removing glass (and materials used as substitutes for glass, such as some plastics).Elizabeth H. Oakes, ''Ferguson Career Resource Guide to Apprenticeship Programs'' ( Infobase: ...
, it may have been as much as wide. Most structures in town were swept completely away and scattered. Vehicles in the area were thrown hundreds of yards and mangled, shrubbery was debarked, and ground scouring occurred. Glazier was considered completely destroyed, with 17 dead, a major percentage of the populace. Press reports told of two people who were known to be together in Glazier before the tornado struck were found apart afterward. The tornado maintained its intensity as it slammed into Higgins, on the Texas–Oklahoma border, which was also devastated. The accepted death toll here was 51; again, a major fraction of the residents of the town were killed or injured. Much of downtown Higgins was completely demolished, and entire rows of homes were swept away. At one residence, a lathe was reportedly ripped from its anchors and broken in half. After killing at least one other person, the tornado crossed the state line and entered Oklahoma. There the tornado was at its worst—the deadliest storm in that state's tornado-troubled history. Six more people were killed when the tornado swept away about 60 ranches and farms south of Shattuck,
Gage Gage may refer to: Measurement * Gage is a variant spelling of the word ''gauge'' *Stream gauge, aka Stream gage, a site along a stream where flow measurements are made People * Gage (surname) *Gage Golightly (born 1993), American actress Plac ...
, and Fargo. During its trek, the
funnel A funnel is a tube or pipe that is wide at the top and narrow at the bottom, used for guiding liquid or powder into a small opening. Funnels are usually made of stainless steel, aluminium, glass, or plastic. The material used in its construct ...
was so wide and low to the ground that it did not resemble a prototypical tornado. The tornado then moved into Woodward, where it devastated the town and killed an estimated 107 people. The damage that occurred in Woodward was catastrophic. There, the tornado was wide and destroyed 100 city blocks. Many homes and businesses were leveled or swept away, and as the tornado struck the town's power plant, a steel boiler tank was lofted and thrown a block and a half. Large trees sustained severe debarking as well. The tornado finally dissipated in Woods County, west of Alva, where it wrecked 36 homes and injured 30 people. Cleanup in the region was made more difficult because of cold and snow that followed the tornado. Four-year-old Joan Gay Croft and her sister Jerri were among refugees taking shelter in a basement hallway of the Woodward hospital. As officials sent the injured to different hospitals in the area, two men took Joan away, saying they were taking her to Oklahoma City. She was never seen again. Over the years, several women have come forth saying they suspect they might be Joan, although none of the claims have been verified. She is likely deceased. The Glazier–Higgins–Woodward tornado was the sixth deadliest in U.S. history, killing 184 and injuring 980; of these figures, 116 deaths and 782 injuries occurred in Oklahoma. An undetermined number of additional fatalities may have occurred in both states affected. In all, the tornado destroyed 626 homes and damaged 920 others, becoming the costliest on record in Oklahoma history.Multiple sources: * * * * ** ** ** * *Mike Coppock
Sixty years after Woodward tornado, girl's kidnapping unsolved.
''Oklahoma Gazette'', April 3, 2007. * * * * *
Woman may be girl stolen after tornado.
''Rome News-Tribune'', April 15, 1994.


Aftermath and recovery

A US Weather Bureau report on the Woodward, Oklahoma Tornado of April 9, 1947, gives the following figures on the damage caused in its "Original Summary" section. *Lipscomb County, Texas – 36 homes flattened, 1 damaged *Hemphill County, Texas – 83 homes leveled, 116 damaged *Texas total – $1,505,000 *Ellis County, Oklahoma – $1,264,000 **52 homes destroyed, 133 damaged **223 other buildings destroyed, 107 damaged *Woodward County, Oklahoma – $6,608,750 **430 homes destroyed, 650 damaged **925 other buildings destroyed, 975 damaged *Woods County, Oklahoma – $950,000 **25 homes destroyed, 34 damaged **110 other buildings destroyed, 90 damaged *Kansas total – $200,000 Total damage estimates were $173,489,564 (equivalent to $747,850,050 in 2008 dollars).


See also

* Tornadoes of 1947


Notes


References


Sources

* * * * * * ** ** ** ** *


External links and sources

* (http://docs.lib.noaa.gov/rescue/mwr/075/mwr-075-04-0070.pdf) {{DEFAULTSORT:1947 Glazier-Higgins-Woodward Tornadoes April 1947 events in the United States F5 tornadoes 1940s missing person cases Glazier-higgins-woodward Tornadoes, 1947 1947 in Texas 1947 in Oklahoma Barber County, Kansas Kingman County, Kansas 20th-century tornadoes 1947 meteorology 1947 natural disasters in the United States Tornadoes in Kansas Tornadoes in Oklahoma Tornadoes in Texas