South, Central and Eastern Severe Weather

Losses, 2024 dollars

$1.9 billion

Losses at the time

$1.6 billion

Deaths

2

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.

• Hail and Damaging Winds in Montana, May 18 to 21, 20201.25 in hail · 12 eventsA broad closed upper level low moved onto the California/Oregon coast and eventually swung northeastward through Western Montana. South to southwesterly flow ahead of this system pumped in moisture and unstable air, while diffluent flow at H300 provided upper level support.
• Flash Flood and Flooding in Ohio, May 18 to 21, 2020$85,000 · 7 eventsA slow moving upper low over Illinois combined with a conveyor belt of humid air over Ohio supported widespread showers and thunderstorms over southern and central Ohio on the afternoon and evening of the 18th. The weather conditions supported not severe weather but heavy rain.
• Flash Flooding and Flooding in Kentucky, May 19, 2020$50,000 · 10 eventsA slow moving upper level low pressure system produced showers and thunderstorms across the Ohio Valley.
• Flash Flooding and Flooding in North Carolina, May 19, 2020$43,000 · 6 eventsA very moist air mass interacting with a nearly stationary frontal zone resulted in a prolonged period of heavy rainfall from multiple waves of heavy rain showers and thunderstorms over the North Carolina foothills.
• Damaging Winds in Idaho, May 19, 202056 kt wind · 2 eventsA severe thunderstorm caused damage near the town of Carey.
• Tornado in Illinois, May 19, 20201 eventA trough of low pressure triggered scattered showers across portions of central Illinois during the afternoon and evening of May 19th. A weak landspout tornado touched down beneath one of the developing showers in southern Piatt County near Hammond. No damage was reported.
• Hail and Damaging Winds in Wyoming, May 19, 20201 in hail · 5 eventsThunderstorms developed along the Laramie Range with the first severe thunderstorm of the year developing near Wheatland.
• Hail and High Wind in Texas, May 19, 20201.75 in hail · 3 eventsDespite a deeply mixed boundary layer on the South Plains on the west side of a quasi-stationary front, thunderstorms were able to develop and quickly become severe.
• Hail and Damaging Wind in Montana, May 19 to 20, 20202.5 in hail · 11 eventsA few isolated thunderstorms produced some severe size hail during the late afternoon and early evening hours of the 19th and into the early morning hours of the 20th.
• Tornado in Colorado, May 19, 20201 eventDuring the late evening hours a strong thunderstorm developed across the eastern Colorado plains making it's way through the lower Arkansas River Valley. One storm in particular produced a weak landspout over open fields. No damage was reported.
• Hail in Montana, May 20, 20201.75 in hail · 1 eventA deep and strong low pressure system over the region, combined with warm, moist air and an unstable atmosphere to form strong thunderstorms over central and southern Montana - one of which became severe as it moved into Petroleum County during the overnight and early morning…
• Flash Flooding and Flood in South Carolina, May 20 to 21, 2020$211,000 · 3 eventsA very moist air mass interacting with a nearly stationary frontal zone resulted in a prolonged period of heavy rainfall from multiple waves of heavy rain showers and thunderstorms over upstate South Carolina.
• Flash Flooding and Flooding in West Virginia, May 20 to 22, 2020$35,000 · 7 eventsA slow moving low pressure system crossing through the Tennessee Valley resulted in a multiple day flooding event across portions of West Virginia.
• Hail in Louisiana, May 20, 20201 in hail · 1 eventAn isolated severe storm developed and dropped one inch hail.
• Tornado and Hail in South Carolina, May 20, 2020EF1 · 10 eventsUnder the influence of a large and anomalous upper low a large cluster of thunderstorms developed in the morning hours and impacted portions of southeast South Carolina.
• Hail in Wyoming, May 20, 20202 in hail · 7 eventsA few thunderstorms developed producing up to 2 inch hail.
• Hail and Damaging Wind in Texas, May 20, 20201 in hail · 2 eventsThunderstorms produced a few reports of hail and wind damage across the Concho Valley.
• Hail in Florida, May 20, 20200.75 in hail · 2 eventsA mid-upper level low and attendant cold front were approaching the Florida peninsula which allowed for southwesterly surface flow. This consequently would pin the Atlantic sea breeze along the east coast.
• Flash Flooding and Hail in Louisiana, May 20, 20201.75 in hail · 7 eventsA warm front lifting northeast into portions of East Texas and Westcentral Louisiana near or just east of the Sabine River during the morning hours of May 20th became stationary by midday, as a weak upper level disturbance rounded a closed upper low pressure system over the…
• Hail in Texas, May 20, 20201.25 in hail · 2 eventsThere was an upper ridge over Texas and an upper level disturbance that moved within the ridge. A stalled cold front and a dryline were across West Texas which also helped to provide a source of lift. Instability and moisture were in place along and east of the dryline.
• Hail in Texas, May 20, 2020$100 million · 3 in hail · 9 eventsSevere thunderstorms erupted for a second straight day across the South Plains. A large upper level low over the western United States allowed for low level moisture to remain in the region under low level southeasterly flow.
• Hail and Damaging Wind in Wyoming, May 20, 20201 in hail · 5 eventsA supercell thunderstorm tracked in a northerly direction across northeastern Campbell County. The storm produced hail around quarter size initially, with wind gusts around 60 mph as well.
• Damaging Winds in Florida, May 20 to 24, 2020$25,000 · 65 kt wind · 9 eventsIsolated severe weather occurred as the area transitioned to a summer pattern at the end of May.
• Hail and Damaging Winds in Montana, May 20, 20202.5 in hail · 21 eventsStrong, southeasterly low level winds ahead of a surface low resulted in dew points rising into the 50s to near 60 degrees across southeast Montana.
• Hail and Damaging Winds in Wyoming, May 20, 20201 in hail · 5 eventsA line of thunderstorms became severe as they moved east-northeast across Weston County. The storms produced hail and wind gusts to 60 mph.
• Hail and Damaging Winds in Georgia, May 20, 20201 in hail · 3 eventsUnder the influence of a large and anomalous upper low several rounds of thunderstorms impacted the southeast Georgia area throughout the day. In the evening, a few of the thunderstorms became strong enough to produce damaging wind gusts and large hail.
• Hail and Damaging Winds in South Dakota, May 20, 202052 kt wind · 5 eventsA line of severe thunderstorms tracked northeast from Wyoming across portions of the Black Hills. The storms produced hail and wind gusts to 60 mph.
• Tornadoes and Hail in Colorado, May 20, 2020EF0 · 8 eventsSix EF-0 landspout tornadoes occurred in Weld County in the span of approximately one hour. The tornadoes tracked in a southeast to northwest direction over open country in an area from 5 miles east of Greeley to just east of Eaton.
• Tornado and Hail in Montana, May 20, 2020$737,000 · EF0 · 49 eventsAn expansive surface low pressure area and plentiful moisture shifted into eastern Montana and directed multiple and persistent severe thunderstorms from south to north through the region from mid-afternoon through then late night hours of the 20th.
• Damaging Wind in Texas, May 20, 202052 kt wind · 1 eventThunderstorms formed along a dryline in West Texas and moved into South Central Texas. One of these storms produced severe wind gusts.
• Damaging Wind in Colorado, May 20, 2020$15,000 · 70 kt wind · 1 eventA heat burst occurred in NW Yuma County. The local mesonet stations recorded rising temperatures with strong wind gusts. Damage from the event included displaced hay bales, a broken power pole, and a destroyed farm outbuilding occurred near Joes, Colorado.
• Hail and Damaging Winds in Oklahoma, May 21 to 22, 2020$32,000 · 1 in hail · 22 eventsIsolated storms produced a couple severe hail reports across southwest Oklahoma during the early morning hours of the 21st.
• Hail in Nebraska, May 21, 20201 in hail · 1 eventIsolated thunderstorms developed over central Lincoln county during the early morning hours of May 21st. Quarter sized hail was reported.
• Tornado and Flash Flooding in North Carolina, May 21 to 22, 2020$50,000 · EF1 · 9 eventsA large upper level low over the Tennessee Valley slowly lifted northward and into the Ohio Valley. This allowed for copious amounts of moisture and rain to affect central North Carolina.
• Flash Flood and Flooding in Missouri, May 21 to 22, 2020$27,000 · 1 in hail · 15 eventsTwo rounds of storms moved over the region from the early morning hours to late afternoon. The first round developed shortly after midnight along an elevated warm front moving northward from the Red River Valley into southwest Missouri.
• Flash Flood in North Carolina, May 21, 20201 eventLow pressure tracking up the coast produced heavy rain.
• Lightning Strike in North Carolina, May 21, 2020$25,000 · 1 eventA thunderstorm produced lightning damage.
• Tornado and Flood in Florida, May 21, 2020$1,000 · EF0 · 12 eventsA rex block characterized by a deep upper-level low across the Tennessee Valley Region and an upper-level high across the Great Lakes Region gave way to an upper-level cold pocket across the southeastern portions of the United states.
• Flash Flood in North Carolina, May 21, 20201 eventA period of heavy rain affect Eastern NC for several days in the second week of May. Some flash flooding occurred during the afternoon hours of May 21st.
• Tornado and Hail in Kansas, May 21, 202052 kt wind · 4 eventsDuring the early afternoon a landspout was reported in Greeley County. The landspout occurred in the northeast part of the county. No damage was reported. During the evening a line of strong to severe thunderstorms moved through Western Kansas.
• Hail in Florida, May 21, 20203 in hail · 26 eventsNumerous severe thunderstorms produced hail across much of east central Florida. Very large hail up to 3 inches occurred in Seminole County. This ties the size of the largest hail ever documented within east-central Florida.
• Tornadoes and Hail in Kansas, May 21 to 24, 2020EF0 · 33 eventsA slight severe risk for much of the CWA due to a cold front pushing in from the northwest. With ample enough shear over 30kts and low level moisture ahead of it, a number of storms developed along and ahead the boundary giving way to large hail close to 3 inches in diameter.
• Hail in Florida, May 21, 20201 in hail · 4 eventsSouthwest steering flow focus the dominant west coast sea breeze to converge with the east coast sea breeze during the afternoon and early evening east of the Highway 301 corridor toward the I-95 corridor.
• Damaging Wind in Georgia, May 21, 202050 kt wind · 1 eventIsolated thunderstorm developed near the southeast Georgia coast along a stationary surface front. One thunderstorm produced damaging wind gusts in McIntosh County, before entering the adjacent Atlantic coastal waters and producing a water spout and strong wind gusts.
• Tornadoes and Hail in Colorado, May 21, 20202.75 in hail · 7 eventsA very active afternoon over the far eastern Colorado plains spawned a few large supercell thunderstorms with very heavy rainfall, very large hail, and a few tornadoes.
• Hail in Texas, May 21, 20201 in hail · 1 eventA warm front lifted north into Southern Oklahoma, extreme Northeast Texas, and Southern Arkansas during the afternoon hours of May 21st, ahead of an area of low pressure aloft over East Texas, leftover from a decayed complex of showers and thunderstorms that affected Western and…
• Hail and Damaging Wind in Kansas, May 21, 20203 in hail · 35 eventsA slight severe risk was draped across much of the CWA due to a surface convergent boundary over western counties with an approaching cold front from the north.
• Hail in Texas, May 21, 20201 in hail · 1 eventA dryline was present across West Texas and there was instability across the area. These conditions resulted in a thunderstorm that developed in the eastern Permian Basin that produced hail.
• Hail in Arkansas, May 21, 20201.25 in hail · 2 eventsA warm front lifted north into Southern Oklahoma, extreme Northeast Texas, and Southern Arkansas during the afternoon hours of May 21st, ahead of an area of low pressure aloft over East Texas, leftover from a decayed complex of showers and thunderstorms that affected Western and…
• Hail in Texas, May 21, 20201.75 in hail · 1 eventOn the afternoon of the 22nd, thunderstorms developed across the Big Country of Texas into the southern Rolling Plains in the vicinity of an intersection of a dryline and a remnant outflow boundary.
• Hail and Damaging Winds in Texas, May 21 to 22, 20204 in hail · 28 eventsDryline interacted with extreme instability and resulted in severe thunderstorms that produced these large hail reports.
• Hail in Texas, May 21, 20201 in hail · 1 eventIsolated storms produced a severe hail reports during the evening of the 21st.
• Flash Flooding and Hail in Arkansas, May 21 to 25, 2020$580,000 · 1.25 in hail · 36 eventsThunderstorm gusts from 60 to more than 80 mph blew through eastern sections of the state during the afternoon of the 22nd. Trees were toppled (some on houses) in Morton (Woodruff County).
• Tornado and Flash Flooding in Texas, May 22 to 24, 2020$7.0 million · EF1 · 36 eventsMay 22nd - 24th, 2020 was an active few days with two main time frames of severe weather, and scattered severe weather reports punctuated elsewhere within these few days.
• Tornadoes and Hail in Oklahoma, May 22 to 23, 2020$91,000 · EF1 · 20 eventsThunderstorms developed over western Kansas during the evening of the 21st, to the north of a low pressure system centered over the Oklahoma Panhandle.
• Flash Flood and Hail in Arkansas, May 22 to 23, 2020$95,000 · 1.75 in hail · 7 eventsThunderstorms developed over western Kansas during the evening of the 21st, to the north of a low pressure system centered over the Oklahoma Panhandle.
• Flash Flood in Kansas, May 22, 20201 eventStorms, associated with a meso-scale convective system, developed over western Kansas during the late afternoon of the 21st and moved to the east-southeast from mid-morning through late afternoon.
• Hail and Damaging Winds in Georgia, May 22, 2020$5.2 million · 1.75 in hail · 16 eventsScattered to numerous thunderstorms along a warm front lifting north across the state resulted in scattered strong to severe thunderstorms across north and central Georgia during the afternoon and evening hours.
• Tornadoes and Hail in South Carolina, May 22, 2020$53,000 · EF1 · 13 eventsA line of thunderstorms moved into upstate South Carolina from northeast Georgia during the early afternoon and quickly intensified. Multiple reports of locally damaging wind gusts were received, and a weak tornado moved across Kings Mountain State Park and vicinity.
• Tornado and Damaging Winds in North Carolina, May 22, 20201 death · 1 injured · $500,000 · EF0 · 7 eventsA line of thunderstorms moved into the southern Piedmont of North Carolina from upstate South Carolina during the afternoon. Multiple reports of locally damaging wind gusts were received, and a weak tornado developed across southern Gaston County.
• Hail and Damaging Wind in Florida, May 22, 2020$6,000 · 50 kt wind · 2 eventsAn upper-level low ejected northeastward and away from the southeast US which allowed for heights to rebound across South Florida as a ridge builds in from the western Atlantic.
• Hail and Damaging Winds in South Carolina, May 22, 20201 death · $110 · 1.5 in hail · 29 eventsAn upper level disturbance moved east and interacted with a stationary front, producing a mesoscale convective system (MCS) which moved east across the northern Midlands of SC, producing widespread wind damage, with additional scattered severe thunderstorms developing across the…
• Hail and Damaging Winds in Mississippi, May 22, 2020$28,000 · 1.75 in hail · 3 eventsA warm summertime pattern set up across the region. With plenty of moisture and instability present, showers and storms developed during the afternoon hours and brought hail and damaging winds to the region.
• Damaging Wind in Alabama, May 22, 202052 kt wind · 1 eventAfternoon heating lead to the development of isolated thunderstorms. One of these storms briefly became severe with gusty winds and small hail.
• Damaging Winds in Arkansas, May 22, 2020$45,000 · 65 kt wind · 8 eventsA line of showers and thunderstorms that originated in the High Plains the previous evening moved into an area of higher instability across the Mid-South and re-strengthened.
• Flash Flood and Hail in Alabama, May 22 to 23, 20201.75 in hail · 12 eventsDeep moisture resided over Alabama on May 22-23 with PWAT values 1.5 to 1.8 inches. Afternoon surface based CAPE values reached 3000-4000 J/kg both days, but steeper mid level lapse rates on May 22 resulted in a majority of the storms producing large hail.
• Damaging Winds in North Carolina, May 22, 2020$178,000 · 50 kt wind · 16 eventsA bowing line segment moved eastward across southern portions of central North Carolina during the late afternoon into the evening. These storms produced widespread wind damage, including trees on homes and damage to structures.
• Damaging Winds in Alabama, May 22 to 24, 2020$10,000 · 55 kt wind · 2 eventsIsolated severe weather occurred as the area transitioned to a summer pattern at the end of May with a couple of downbursts producing minor damage.
• Hail in Florida, May 22, 20200.88 in hail · 3 eventsMean layer WSW steering flow was light across NE which enable sea breezes and river breezes to converge over inland areas over an unstable airmass. Cool mid level temperatures at 500 mb ranged from -10 to -12 deg C.
• Damaging Winds in Georgia, May 22, 2020$10,000 · 50 kt wind · 5 eventsIsolated severe weather occurred as the area transitioned to a summer pattern at the end of May.
• Damaging Winds in Tennessee, May 22, 202056 kt wind · 5 eventsA line of showers and thunderstorms that originated in the High Plains the previous evening moved into an area of higher instability across the Mid-South and re-strengthened.
• Damaging Winds in South Carolina, May 22, 2020$3,000 · 52 kt wind · 3 eventsA stationary front produced strong storms.
• Hail in Florida, May 22, 20201 in hail · 2 eventsA severe thunderstorm in western Orange County produced quarter-sized hail.
• Tornado and Flash Flood in Nebraska, May 22, 20201 in hail · 7 eventsA surface low tracked from Kansas into southeast Nebraska producing 1 tornado, a couple of hail reports, and flooding.
• Hail and Damaging Wind in South Carolina, May 22, 20202.75 in hail · 6 eventsScattered thunderstorms developed across the South Carolina Midlands in the mid afternoon hours ahead of a surface front and moved southward into the Lowcountry into the evening. A few of these thunderstorms became strong enough to produce large hail and damaging wind gusts.
• Hail and Damaging Winds in Oklahoma, May 22, 2020$1,000 · 4 in hail · 19 eventsNumerous severe thunderstorms fired along the intersection of a stalled outflow boundary and a dryline during the afternoon and evening of the 22nd.
• Hail and Damaging Winds in North Carolina, May 22, 2020$3,000 · 52 kt wind · 4 eventsA stationary front produced strong storms with hail.
• Tornadoes and Hail in Texas, May 22 to 23, 2020$17,000 · EF1 · 37 eventsNumerous severe thunderstorms fired along the intersection of a stalled outflow boundary and a dryline during the afternoon and evening of the 22nd.
• Damaging Wind in North Carolina, May 22, 202050 kt wind · 1 eventA line of thunderstorms moved into the southern Coastal Plains during the early evening hours. There was a report of some damaging winds associated with this line of thunderstorms.
• Damaging Wind in Tennessee, May 22, 2020$5,000 · 1 eventA line of showers and thunderstorms moved across southwest portions of Middle Tennessee during the evening hours on May 22. One report of wind damage was received.
• Damaging Wind in Georgia, May 22, 2020$2,000 · 1 eventMean layer WSW steering flow was light across NE which enable sea breezes and river breezes to converge over inland areas over an unstable airmass. Cool mid level temperatures at 500 mb ranged from -10 to -12 deg C.
• Hail in Kansas, May 22, 20201 in hail · 1 eventThe majority of storms remained below severe limits but there was one report of quarter sized hail.
• Hail in Alabama, May 22, 20201.75 in hail · 2 eventsScattered thunderstorms during the evening hours produced hail in northeast Alabama. In Marshall County, up to golf ball sized hail was reported.
• Hail in Georgia, May 22, 20202 in hail · 3 eventsScattered thunderstorms developed across southeast Georgia ahead of a surface front. A few of these thunderstorms became strong enough to produce large hail.
• Hail and Damaging Wind in Missouri, May 22, 20201.5 in hail · 3 eventsScattered thunderstorms produced some minor impact severe weather in northwest Missouri.
• Damaging Wind in Tennessee, May 22, 202050 kt wind · 1 eventIsolated convective elements continued to drift north across a part of Southeast Tennessee late in the evening and into the early morning hours. One storm produced just enough wind to down some trees.
• Damaging Winds in South Carolina, May 22 to 23, 202065 kt wind · 6 eventsColliding outflow boundaries interacted with a stationary front to produce severe thunderstorm activity in Richland and Sumter Co SC.
• Damaging Wind in Oklahoma, May 22, 202056 kt wind · 1 eventA large complex of showers and thunderstorms developed during the afternoon hours of May 22nd across Southwest Oklahoma and Northwest/West-Central Texas, along a dry line/weak surface trough intersection, as an upper level disturbance ejected northeast across the Texas/Oklahoma…
• Tornadoes and Hail in Iowa, May 23, 2020EF1 · 9 eventsSevere thunderstorms tracked across much of eastern Iowa and northwest Illinois in the early afternoon hours of May 23rd, 2020. Storms quickly intensified in an extremely favorable environment, which was the result of a warm front lifting north across the Midwest.
• Tornadoes and Hail in Illinois, May 23, 2020EF1 · 4 eventsSevere thunderstorms tracked across much of eastern Iowa and northwest Illinois in the early afternoon hours of May 23rd, 2020. Storms quickly intensified in an extremely favorable environment, which was the result of a warm front lifting north across the Midwest.
• Tornado and Hail in Illinois, May 23, 2020$60,000 · EF0 · 5 eventsScattered thunderstorms developed near a warm front draped along the I-74 corridor during the early afternoon of May 23rd. One of the cells spawned a brief EF-0 tornado in eastern Woodford County near Panola.
• Damaging Winds in Louisiana, May 23, 2020$20,000 · 50 kt wind · 2 eventsA warm and unstable airmass was in place across the region. A decaying outflow boundary from storms that occurred in the Midwest moved through Louisiana and into Mississippi. Severe thunderstorms associated with this outflow brought wind damage and some small hail.
• Hail and Damaging Winds in Indiana, May 23, 2020$20,000 · 1.75 in hail · 6 eventsDuring the afternoon hours of May 23rd, thunderstorms moved across portions of central Indiana. Most of the storms remained subsevere, but a few stronger storms brought periods of large hail and damaging winds to the area.
• Hail and Damaging Winds in Mississippi, May 23, 2020$148,000 · 1 in hail · 24 eventsA warm and unstable airmass was in place across the region. A decaying outflow boundary from storms that occurred in the Midwest moved through Louisiana and into Mississippi. Severe thunderstorms associated with this outflow brought wind damage and some small hail.
• Hail and Damaging Winds in Texas, May 23, 20202 in hail · 10 eventsAn upper level trough was approaching Texas from the west which provided atmospheric lift. A dryline was present across West Texas with very moist and unstable air to the east of this feature.
• Tornadoes and Flash Flooding in Illinois, May 23, 20201 injured · EF1 · 29 eventsScattered severe thunderstorms moved across northern Illinois during the afternoon of May 23rd producing wind damage, localized flooding and three tornadoes. Several funnel clouds were also reported.
• Hail in Wyoming, May 23, 20201 in hail · 1 eventA thunderstorm became severe over northeastern Weston County and eventually tracked into South Dakota. The storm produced hail to quarter size in the Four Corners area.
• Hail in South Dakota, May 23, 20201.25 in hail · 3 eventsHail around quarter size accompanied a severe thunderstorm that tracked to the north across parts of western Meade County.
• Hail in South Dakota, May 23, 20200.88 in hail · 1 eventA thunderstorm dropped nickel sized hail south of Rapid City.
• Hail in South Dakota, May 23, 20201 in hail · 1 eventA severe thunderstorm tracked from Wyoming into western Lawrence County before weakening. It produced hail to quarter size.
• Hail in South Dakota, May 23, 20201.75 in hail · 1 eventA severe thunderstorm produced hail to golf ball size over parts of eastern Pennington County.
• Hail in South Dakota, May 23, 20201.5 in hail · 2 eventsLarge hail accompanied a thunderstorm that became severe in the Summerset area.
• Damaging Wind in Louisiana, May 23, 2020$5,000 · 52 kt wind · 1 eventA complex of thunderstorms racing across the area from the northwest helped develop additional widespread showers and thunderstorms with strong winds that afternoon.
• Flash Flood and Hail in South Dakota, May 23, 20201.75 in hail · 10 eventsA thunderstorm became severe in the Badlands area and tracked slowly north-northeast across parts of Jackson and Haakon Counties, eventually becoming a line of storms.
• Flash Flood and Damaging Wind in Indiana, May 23, 2020$3,000 · 50 kt wind · 2 eventsScattered thunderstorms developed during the afternoon hours in a warm and unstable airmass.
• Damaging Wind in Florida, May 23, 202055 kt wind · 1 eventSea breeze thunderstorms developed over a moist and unstable airmass. Cool mid level temperatures with 500 mb around -10 degC and modestly unstable lapse rates with dry air in the hail growth zone supported pulse severe storms.
• Hail in South Dakota, May 23, 20201 in hail · 2 eventsA severe thunderstorm developed over the central Black Hills and produced hail to quarter size.
• Flash Flood and Hail in South Dakota, May 23, 20201.5 in hail · 6 eventsA cluster of strong to severe thunderstorms developed into a broken line of storms, producing hail and a few wind gusts near 60 mph before weakening.
• Hail in Indiana, May 23, 20200.88 in hail · 1 eventAn isolated strong thunderstorm produced nickel-size hail. The storm occurred just south of a warm front that extended southeast from a low pressure center over the Iowa/Illinois border area.
• Flash Flood and Hail in Kentucky, May 23 to 25, 2020$60,000 · 1 in hail · 11 eventsMay 23, warmer temperatures surged into central Kentucky and southern Indiana behind a northward moving warm front.
• Flash Flood and Hail in Indiana, May 23, 20201 in hail · 8 eventsScattered thunderstorms moved across parts of northwest Indiana during the afternoon of May 23rd producing wind damage and localized flooding.
• Tornado and Flash Flood in Texas, May 23, 20203.25 in hail · 16 eventsWidespread supercell thunderstorms developed across the South Plains on the afternoon and evening of the 23rd producing very large hail, a tornado, and flash flooding.
• Hail and Heavy Rain in Wisconsin, May 23, 2020$500 · 1 in hail · 2 eventsLow pressure and a warm front brought a severe thunderstorm and locally heavy rain to southern Rock County.
• Hail in Wyoming, May 23, 20200.75 in hail · 1 eventStrong thunderstorms developed pre-squall line in far eastern Wyoming with up to penny size hail.
• Hail and Damaging Winds in Ohio, May 23, 2020$10,000 · 1.25 in hail · 14 eventsScattered thunderstorms developed during the afternoon hours in a warm and unstable airmass.
• Hail and Damaging Winds in Nebraska, May 23, 20201.25 in hail · 10 eventsSquall line moved through the Kimball and Cheyenne Counties in Nebraska with half dollar size hail and 75 MPH wind gusts.
• Damaging Wind in Kentucky, May 23, 2020$100 · 1 eventWhile scattered thunderstorms developed early this evening, only one became strong enough to produce any damage. This came by way of a downed tree near Jackson as a thunderstorm briefly intensified.
• Hail in South Dakota, May 23, 20201 in hail · 1 eventA thunderstorm briefly became severe over southeastern Meade County, producing quarter sized hail near Elm Springs.
• Hail and Damaging Winds in Indiana, May 23, 20201.25 in hail · 12 eventsA warm front was located across northern Indiana, helping to enhance effective shear (40 to 50 kts). Over 1000 J/KG of MLCAPE was in place ahead of 2 HP supercells that developed across portions of northern Illinois into northwestern Indiana.
• Hail in Oklahoma, May 23, 20201 in hail · 1 eventIsolated thunderstorms developed during the late afternoon and evening across eastern and Oklahoma Panhandle. The storms developed within a highly unstable airmass along and ahead of the dryline. One of these storms produced severe hail.
• Tornado in North Dakota, May 23, 2020EF0 · 1 eventLate in the afternoon of May 23rd, a surface low was located south of Minot, with a stationary boundary extending northeast, up toward Langdon, North Dakota. A tornado (landspout) briefly touched down just north of York, along the boundary.
• Tornado in Kansas, May 23, 20201 eventA brief landspout tornado occurred in Sherman County, Kansas on May 23rd, 2020. The tornado occurred for an estimated 3 minutes according to radar signatures and spotter accounts. No damage was reported with this tornado.
• Hail in North Dakota, May 23, 20201.25 in hail · 3 eventsThunderstorms developed along an inverted trough over southwest into north central North Dakota. One storm became severe over Grant County, producing half-dollar size hail.
• Hail in South Dakota, May 23, 20201 in hail · 2 eventsA line of severe thunderstorms developed across Jackson County, producing hail to quarter size.
• Hail in Kansas, May 23, 20201.5 in hail · 4 eventsA dryline pushed out of eastern Colorado sparking up a couple of storms in the Meade County area. There was not sufficient enough low level moisture and instability along that dryline across the CWA staying well south into the Texas Panhandle.
• Flash Flooding and Hail in Nebraska, May 23 to 24, 20201.75 in hail · 22 eventsThunderstorms developed during the early evening hours in the Nebraska Panhandle along an approaching cold front. As storms tracked east they became more widespread in nature.
• Hail and Damaging Winds in Oklahoma, May 23 to 24, 2020$1,000 · 56 kt wind · 8 eventsA line of thunderstorms pushed across much of western Oklahoma on the 23rd producing scattered reports of severe wind gusts and wind damage.
• Hail and Damaging Winds in Texas, May 23 to 24, 20201 in hail · 5 eventsA dryline interacting with a very unstable airmass resulted in these damaging wind reports and the hail report.
• Damaging Winds in Nebraska, May 24, 2020$200,000 · 61 kt wind · 3 eventsA mesoscale convective system (MCS) developed over central Nebraska, then moved east-southeast during the early morning hours of Sunday, May 24, bringing damaging winds to portions of the area.
• Damaging Winds in Nebraska, May 24, 202065 kt wind · 14 eventsA thunderstorm watch was issued on May 23 at 11:58 PM that covered most of northeast Nebraska.
• Damaging Wind in South Dakota, May 24, 202053 kt wind · 1 eventThunderstorms developed near a frontal zone pushing eastward across South Dakota and Nebraska.
• Damaging Wind in Iowa, May 24, 202052 kt wind · 1 eventThunderstorms developed near a frontal zone pushing eastward across South Dakota and Nebraska.
• Damaging Wind in Iowa, May 24, 202062 kt wind · 1 eventA thunderstorm watch was issued at 11:58 PM that covered most of northeast Nebraska.
• Tornado and Flash Flooding in Texas, May 24 to 25, 2020$554,000 · EF1 · 27 eventsAn upper level shortwave trough moved through West Texas and interacted with a dryline to generate thunderstorms. The airmass was strongly unstable with only modest vertical wind shear and high precipitable water.
• Hail in Texas, May 24, 20201 in hail · 1 eventA series of disturbances moving across the area generated some hail.
• Flash Flood and Damaging Winds in Illinois, May 24, 2020$11,000 · 52 kt wind · 3 eventsA few slow-moving clusters of storms produced heavy rainfall and isolated strong winds. The most significant storms were during the evening, when isolated flash flooding and tree damage was reported.
• Hail and Damaging Winds in Missouri, May 24, 20202.75 in hail · 16 eventsOn the evening of May 24, 2020 several storms formed across northwestern Missouri. A few storms produced golf ball to baseball sized hail, and there was scattered wind damage across the area. Otherwise, impacts were low.
• Damaging Wind in South Carolina, May 24, 202050 kt wind · 1 eventIsolated to scattered thunderstorms developed in the early afternoon hours along the sea breeze. One storm became strong enough to produce damaging wind gusts.
• Hail in Tennessee, May 24, 20200.88 in hail · 1 eventA strong storm developed due to daytime heating on the periphery of an upper ridge. Some nickel size hail fell in Henderson County.
• Flash Flooding and Damaging Wind in Kentucky, May 24, 2020$75,000 · 52 kt wind · 7 eventsScattered thunderstorms developed very late this afternoon and early evening as a hot and humid airmass remained in place across eastern Kentucky.
• Flash Flood and Hail in South Carolina, May 24, 2020$240 · 1 in hail · 8 eventsA combination of strong daytime heating and a stalled surface front promoted slow moving thunderstorms across central SC, some of which produced hail, wind damage and/or localized heavy rainfall and flooding.
• Hail and Damaging Wind in Texas, May 24, 20201.5 in hail · 5 eventsAn upper trough was to the west of the region, and a dryline was across West Texas. An upper level disturbance moved over the area. There was high moisture and instability east of the dryline.
• Hail and Damaging Winds in Texas, May 24, 20201.75 in hail · 24 eventsNumerous showers and thunderstorms developed during the afternoon of May 24th, as an upper level disturbance rotated north across East-Central Texas, ahead of a large upper level trough of low pressure slowly drifting east over much of the Rockies.
• Flash Flooding and Hail in Missouri, May 24 to 25, 20201 in hail · 4 eventsAs a weak low pressure system moved northeast through the region, some severe convection developed. Some of the storms produced damaging winds, large hail and flash flooding.
• Flash Flooding and Hail in Missouri, May 24 to 25, 2020$10,000 · 1.5 in hail · 12 eventsAn upper level low pressure system became a cut-off low over the Southern Plains, leading to multiple rounds of storms from the latter half of Memorial Day Weekend into much of the following work week.
• Flash Flooding and Flooding in Kentucky, May 24 to 25, 2020$3,000 · 50 kt wind · 13 eventsScattered thunderstorms developed during the afternoon hours as a weak upper level disturbance moved through the Ohio Valley.
• Flash Flooding and Debris Flows in Virginia, May 24 to 25, 2020$1.7 million · 55 kt wind · 20 eventsLate afternoon thunderstorms developed along the southwest Virginia Blue Ridge and drifted southward into the foothills and piedmont producing intense rainfall over fairly saturated ground and causing some significant flash flooding and debris flows in parts of Franklin, Floyd…
• Hail and Damaging Winds in Georgia, May 24, 2020$173,000 · 1.75 in hail · 7 eventsA moderately unstable airmass and strong afternoon heating resulted in scattered strong to severe thunderstorms across north and central Georgia during the afternoon and evening hours.
• Flash Flood and Damaging Wind in Indiana, May 24, 202053 kt wind · 2 eventsMay 23, warmer temperatures surged into central Kentucky and southern Indiana behind a northward moving warm front.
• Flash Flooding and Hail in Mississippi, May 24 to 27, 2020$255,000 · 1.75 in hail · 34 eventsAfternoon showers and thunderstorms occurred across the region as a warm, moist and unstable airmass was in place. Some of these storms were severe with damaging winds and hail.
• Damaging Wind in Missouri, May 24, 202061 kt wind · 1 eventA cluster of strong to severe thunderstorms moved across northern Missouri during the early afternoon of May 24th, and resulted in damaging winds reaching into portions of Scotland County Missouri. Heavy rainfall amounts of around 2 inches also fell with this event.
• Damaging Winds in Louisiana, May 24, 202056 kt wind · 3 eventsNumerous showers and thunderstorms developed during the afternoon of May 24th, as an upper level disturbance rotated north across East-Central Texas, ahead of a large upper level trough of low pressure slowly drifting east over much of the Rockies.
• Flash Flooding and Hail in Kansas, May 24 to 25, 2020$200 · 1.25 in hail · 22 eventsSevere thunderstorms moved across central Kansas during the evening of May 24th. These storms produced quarter to half dollar sized hail and damaging winds. Heavy rainfall associated with these storms resulted in flash flooding in Ellsworth, Russell and Saline counties.
• Flash Flood and Damaging Wind in Oklahoma, May 24, 202052 kt wind · 2 eventsNumerous showers and thunderstorms developed during the afternoon of May 24th, as an upper level disturbance rotated north across East-Central Texas, ahead of a large upper level trough of low pressure slowly drifting east over much of the Rockies.
• Damaging Winds in North Carolina, May 24, 2020$25,000 · 50 kt wind · 2 eventsScattered thunderstorms developed across western North Carolina during the afternoon and evening. A couple of the storms produced strong-to-damaging wind gusts.
• Hail and Damaging Winds in Texas, May 24, 20201.75 in hail · 10 eventsSevere thunderstorms erupted for a second straight day across the South Plains. A weak short wave moved out of central New Mexico into West Texas during the afternoon hours which aided in convective development along a dryline.
• Hail and Damaging Winds in Texas, May 24, 2020$1,000 · 1.5 in hail · 8 eventsScattered thunderstorms developed along and east of the dryline across the Texas Panhandle within a moist and strongly unstable airmass. Some of the thunderstorms across the northeast and east-central Texas Panhandle became severe, producing large hail and severe wind gusts.
• Damaging Wind in Tennessee, May 24, 2020$3,000 · 1 eventA complex of showers and thunderstorms moved eastward across Middle Tennessee during the afternoon hours of May 24. One report of wind damage was received in Davidson County.
• Flash Flood in Ohio, May 24, 20201 eventScattered thunderstorms developed during the afternoon hours as a weak upper level disturbance moved through the Ohio Valley.
• Tornado and Flash Flooding in Nebraska, May 24 to 25, 2020$2.2 million · EF0 · 3 eventsThunderstorms brought heavy rain and a landspout to portions of south central Nebraska the evening of Sunday, May 24 into the early morning hours of Memorial Day, Monday, May 25.
• Hail in Texas, May 24, 20200.88 in hail · 1 eventA sub-severe hail report was received associated with thunderstorms pushing across western north Texas during the late afternoon of the 24th.
• Damaging Wind in Indiana, May 24, 2020$1,000 · 50 kt wind · 1 eventScattered thunderstorms slowly moved across central Indiana during the evening hours on May 24th. Thunderstorms generally remained sub-severe but a microburst occurred in southeastern Hendricks county after an outflow boundary initiated convection that later caused a microburst.

Every billion-dollar disasterEvery storm of 2020Tornadoes in 2020

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.