Texas and Oklahoma Severe Weather

Losses, 2024 dollars

$3.7 billion

Losses at the time

$3.1 billion

Deaths

0

The losses and deaths are NCEI’s, counting everything the disaster did. The episodes below are only what the Weather Service filed in its Storm Events record, which counts damage differently and often not at all, so the two never add up and are shown apart.

• Tornado in California, April 25, 2021$30,000 · EF0 · 1 eventThere was an EF-0 tornado that touched down in Tehama County on Sunday evening around 5:45 pm in the town of Capay, just north of Orland and the Glenn County border. This was video-recorded by a resident in a nearby field between Watkins Rd. and Capay Rd.
• Hail in Wyoming, April 26, 20211.25 in hail · 1 eventA thunderstorm briefly became severe over southern portions of Weston County, producing large hail southeast of Clareton.
• Hail in Minnesota, April 26, 20211.75 in hail · 1 eventIsolated thunderstorms developed along a nearly stationary boundary south of Interstate 90 in the very early hours of April 27.
• Hail in Minnesota, April 27, 2021$3,000 · 1.5 in hail · 6 eventsScattered thunderstorms moved across southeast Minnesota during the early morning hours of April 27th. Some of these storms dropped hail that ranged in size from nickels up to 1.5 inches. The largest hail fell just southeast of Winona (Winona County).
• Hail in Wisconsin, April 27, 20211.25 in hail · 5 eventsScattered thunderstorms moved across portions of western Wisconsin during the early morning hours of April 27th. Some of these storms dropped hail the size of nickels up to 1.25 inches. The largest hail fell in Trempealeau (Trempealeau County).
• Hail in Minnesota, April 27, 20211.25 in hail · 3 eventsScattered thunderstorms developed across southwest Minnesota and moved rapidly northeast during the morning of Tuesday, April 27th. These thunderstorms produced 1.25 diameter hail north of Trimont, Minnesota before weakening.
• Hail in Wisconsin, April 27, 20211 in hail · 4 eventsA cold front combined with an upper level disturbance brought scattered thunderstorms to the area. The strongest storms produced hail up to quarter size across northeast Wisconsin during the late morning and early afternoon hours.
• Tornadoes and Flooding in Colorado, April 27 to 29, 2021$20,000 · EF0 · 14 eventsSevere thunderstorms developed across portions of Adams, Elbert, and Lincoln counties. Hail from quarter to ping pong ball size was observed. Near Limon and Messex, the hail completely covered the roadways.
• Hail in Texas, April 27, 20212.75 in hail · 1 eventA broad upper level trough over the western US brought several days of scattered thunderstorms to the region. The first of these storms occurred on the afternoon of the 27th along a diffuse dryline. One storm became especially strong as it tracked across King County.
• Tornadoes and Hail in Texas, April 27, 2021$70,000 · EF3 · 7 eventsA slow moving trough and a dryline helped initiate convection during the afternoon of the 27th. Numerous hail and wind reports were received, along with a few reports of tornadoes.
• Tornadoes and Hail in Colorado, April 27, 20211.75 in hail · 17 eventsA frontal boundary slowly pushed north across eastern Colorado during the afternoon hours before shifting east into western Kansas and extreme southwest Nebraska during the evening hours.
• Tornadoes and Flash Flooding in Oklahoma, April 27 to 28, 2021$30,000 · EF1 · 5 eventsA slow moving trough and a dryline helped initiate convection during the afternoon of the 27th. Numerous hail and wind reports were received, along with a few reports of tornadoes.
• Flash Flood and Hail in Texas, April 27 to 28, 2021$53,000 · 1.75 in hail · 21 eventsA few severe thunderstorms developed along the dryline on April 27 and resulted in damaging winds and large hail reports across the area.
• Tornado and Hail in Texas, April 27, 2021$30,000 · EF0 · 8 eventsAn upper level trough was over the Desert Southwest. A dryline was|present across West Texas. There was high instability and high|moisture east of the dryline. Wind shear was also high across the|area.
• Hail and Damaging Winds in Kansas, April 27, 2021$21,000 · 3 in hail · 15 eventsA frontal boundary slowly pushed north across eastern Colorado during the afternoon hours before shifting east into western Kansas and extreme southwest Nebraska during the evening hours.
• Hail in Nebraska, April 27, 20210.88 in hail · 1 eventA broad area of showers and thunderstorms, developed south of a warm front during the evening hours of April 27th. Some strong storms were reported over Custer county where nickel sized hail was reported.
• Hail in Nebraska, April 27, 20210.75 in hail · 1 eventA frontal boundary slowly pushed north across eastern Colorado during the afternoon hours before shifting east into western Kansas and extreme southwest Nebraska during the evening hours.
• Hail in Nebraska, April 27 to 28, 20211 in hail · 2 eventsBetween 11 p.m. CDT on Tuesday the 27th and 4 a.m. Wednesday the 28th, a small complex of strong to marginally-severe thunderstorms tracked along a southwest-to-northeast path through the heart of South Central Nebraska, prompting a few measured wind gusts up to 50-55 MPH and…
• Hail and Damaging Winds in Texas, April 28, 2021$500 million · 3.25 in hail · 42 eventsAn upper level low and a cold front near the surface resulted in the development of showers and thunderstorms across much of North and Central Texas. Several storms produced very large hail and damaging winds west of I-35.
• Tornadoes and Flash Flooding in Oklahoma, April 28 to 30, 2021$77,000 · EF1 · 13 eventsStrong to severe thunderstorms moved through eastern Oklahoma during the morning of the 28th. These storms produced locally heavy rainfall that resulted in flash flooding, damaging wind gusts, and three tornadoes.
• Flash Flooding and Flooding in Arkansas, April 28 to 30, 2021$102,000 · 1.75 in hail · 24 eventsStrong to severe thunderstorms moved into northwestern Arkansas during the morning of the 28th. These storms produced widespread heavy rainfall that resulted in flash flooding, as well as damaging wind gusts.
• Flash Flooding and Flooding in Oklahoma, April 28 to 29, 2021$5,000 · 3 in hail · 41 eventsStorms continued into the 28th as a slow moving trough approached. Early morning convection produced numerous flood reports.
• Tornadoes and Flash Flooding in Missouri, April 28 to 29, 2021$580,000 · EF0 · 32 eventsHeavy rain developed over southern Missouri on the night of the 27th and continued through the evening of the 28th as a slow moving cold front moved across the region and interacted with a moist and unstable airmass over the region.
• Tornado and Flash Flood in Missouri, April 28, 2021$15,000 · EF1 · 3 eventsThe remnants of a squall line moved east across southeast Missouri in the form of a loosely organized cluster of storms. These storms moved along a poorly defined warm front, characterized by weak instability and 40 to 50 kt of effective bulk wind shear.
• Flash Flood in Kansas, April 28, 20211 eventHeavy rain caused some flash flooding in and around Kansas City.
• Flash Flooding in Missouri, April 28, 20215 eventsAfter heavy rain moved through the Kansas City Metro several local roadways were inundated with running water.
• Damaging Wind in Illinois, April 28, 2021$5,000 · 52 kt wind · 1 eventThe remnants of a squall line moved east into extreme southern Illinois in the form of a loosely organized cluster of storms. These storms moved along a poorly defined warm front, characterized by weak instability and 40 to 50 kt of effective bulk wind shear.
• Tornado and Flash Flood in Texas, April 28, 2021$2.0 million · EF1 · 52 eventsThunderstorms developed along a cold front in northern Mexico and moved into South Central Texas. Some of these storms grew to be supercells and produced giant hail, damaging wind gusts, and one tornado. Some areas along Highway 90 had multiple rounds of supercells.
• Hail in Texas, April 28, 20211.25 in hail · 2 eventsAn upper level low was over southern Arizona which resulted in upper|lift over West Texas. There was sufficient instability and moisture|across the area.
• Hail in Texas, April 28, 20212.75 in hail · 2 eventsScattered thunderstorms developed over the Rolling Plains on the afternoon of the 28th as an upper level low pressure system continued to be positioned to the southwest of Texas. Strong instability allowed a few storms to become strong to severe.
• Tornado and Damaging Winds in Tennessee, April 28, 20211 injured · $601,000 · EF1 · 3 eventsAn upper-level disturbance interacted with a warm front across northwest Tennessee resulting in a cluster of storms during the early evening hours of April 28th. The storms traveled east along the warm front and produced a tornado across parts of Henry County.
• Damaging Winds in Pennsylvania, April 28, 2021$7,000 · 50 kt wind · 5 eventsA low pressure system passed through the region and brought a line of showers and thunderstorms across northeast Pennsylvania during the evening hours. A few storms became severe knocking down trees and utility wires.
• Flash Flood in Kentucky, April 28, 2021$5,000 · 1 eventA weak disturbance crossed through the Ohio Valley on the evening of April 28th. Ahead of this disturbance, abnormally warm temperatures coupled with high moisture content were in place to aid in shower and thunderstorm develop that evening.
• Damaging Winds in New Jersey, April 28, 202155 kt wind · 2 eventsA line of thunderstorms developed over far northern Pennsylvania in an unseasonably warm and unstable air mass south of a stationary front on April 28.
• Tornado in Illinois, April 28, 20211 eventAn outflow boundary from morning convection across north-central Illinois settled southward to just south of the I-72 corridor by the early evening of April 28th.
• Flash Flooding in Arkansas, April 28 to 29, 2021$10,000 · 9 eventsA strong upper low slowly pivoted towards Arkansas from Texas on the 28th. Abundant moisture streamed into the region ahead of the system, resulting in efficient rainfall rates over the northern half of the state once showers and thunderstorm initiated.
• Flash Flooding in Missouri, April 29, 20213 eventsSoutherly flow as well as intermittent showers and a few thunderstorms raised the dew point into the mid 60s to around 70 across the area. Also, forecast soundings showed a very moist and deep warm layer up to around 12,000 feet.
• Flash Flood in Kentucky, April 29, 2021$10,000 · 1 eventA stronger and slow-moving front moved across the region during the April 28-29 time period. Numerous rounds of showers and storms produced very heavy rainfall.
• Damaging Winds in Illinois, April 29, 202155 kt wind · 7 eventsScattered convective showers and isolated thunderstorms moved across portions of northern Illinois during the late afternoon and early evening of April 29th, producing localized severe wind gusts along with some wind damage.
• Damaging Winds in Pennsylvania, April 29, 202150 kt wind · 4 eventsThunderstorms developed near and north of the Baltimore, MD area in an environment of moderate instability and wind shear ahead of a cold front late on April 29.

Every billion-dollar disasterEvery storm of 2021Tornadoes in 2021

NOAA NCEI, U.S. Billion-Dollar Weather and Climate Disasters (2025), https://doi.org/10.25921/stkw-7w73, and the Storm Events Database for the episodes.