Southeast/Midwest Tornadoes
One of the severe storm disasters on NOAA’s billion-dollar list: $3.1 billion in losses at 2024 prices ($2.2 billion at the time).
What the offices filed during it
The 113 most significant severe storm episodes filed in these dates, colored by kind.
- Tornadoes
- Tropical storms and surge
- Floods
- Wind
- Hail
- Winter weather
- Heat and drought
- Cold
- Fire, smoke and dust
- Marine and coastal
- Other
The toll
- Losses, 2024 dollars
- $3.1 billion
- Losses at the time
- $2.2 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.
By state, as filed
| State | Events | Deaths | Injuries | Damage filed |
|---|---|---|---|---|
| Wisconsin | 120 | 0 | 3 | $62 million |
| Iowa | 86 | 0 | 14 | $21 million |
| Virginia | 55 | 0 | 9 | $5.6 million |
| Texas | 100 | 0 | 2 | $4.4 million |
| Kansas | 82 | 0 | 0 | $4.4 million |
| South Carolina | 104 | 0 | 2 | $2.4 million |
| Illinois | 25 | 0 | 2 | $1.9 million |
| Minnesota | 30 | 0 | 0 | $736,000 |
| West Virginia | 54 | 0 | 0 | $537,000 |
| Alabama | 94 | 0 | 1 | $434,000 |
| Kentucky | 149 | 0 | 2 | $290,000 |
| Tennessee | 35 | 0 | 0 | $274,000 |
| Arkansas | 15 | 0 | 0 | $202,000 |
| Georgia | 13 | 0 | 0 | $170,000 |
| North Carolina | 77 | 0 | 12 | $150,000 |
| Michigan | 25 | 0 | 0 | $150,000 |
| Missouri | 58 | 0 | 0 | $109,000 |
| Indiana | 32 | 0 | 0 | $86,000 |
| Oklahoma | 70 | 0 | 0 | $72,000 |
| Mississippi | 18 | 0 | 0 | $37,000 |
| California | 1 | 0 | 0 | $26,000 |
| South Dakota | 6 | 0 | 0 | $5,000 |
| Pennsylvania | 1 | 0 | 0 | $1,000 |
| Nebraska | 17 | 0 | 0 | |
| Colorado | 2 | 0 | 0 |
Episode by episode
- Hail in Colorado, April 7, 2011A strong thunderstorm produced nickel size hail over eastern Arapahoe County.
- Tornado in California, April 7, 2011An EF0 tornado touched down near Rockville in Solano County.
- Hail in Kansas, April 7 to 8, 2011Late in the day on Friday April 8th, strong thunderstorms formed in southeast Kansas and pushed northward into northeast Kansas. As these storms pushed northward they left a swath of hail across Morris county, with the largest stones measuring 3 in diameter.
- Hail and Damaging Winds in West Virginia, April 8, 2011An east to west front sliced through central West Virginia and southern Ohio on the 8th. A band of rain was seen during the morning along and north of this boundary. New convection formed during the early afternoon south of the front.
- Hail in Kentucky, April 8, 2011An east to west front sliced through central West Virginia and southern Ohio on the 8th. A band of rain was seen during the morning along and north of the front. However, new convection formed during the early afternoon south of the front.
- Hail and Damaging Winds in Kentucky, April 8, 2011On the afternoon of April 8th, a weak upper level disturbance traveled over a ridge placed over the the TN and OH valleys. The wave was able to interact with the surface boundary and with sufficient daytime heating, was able to fire multiple supercell thunderstorms.
- Hail in Virginia, April 8, 2011An east to west front sliced through central West Virginia and southern Ohio on the 8th. A band of rain was seen during the morning along and north of the front. However, new convection formed during the early afternoon south of the front.
- Hail and Damaging Wind in West Virginia, April 8, 2011A high pressure centered over New England pushed a back door cold front into Southeast West Virginia. This front, combined with an upper level low pressure system moving through the region, triggered severe thunderstorms. Some of these storms produced large hail.
- Hail and Damaging Winds in Oklahoma, April 8, 2011A weak cold front slipped into northern Oklahoma during the early morning hours of the 8th. Meanwhile, a dry line sharpened up near the Oklahoma/Texas panhandle border.
- Hail and Damaging Winds in Kansas, April 8 to 9, 2011Severe storms created a large swath of golf ball to baseball size hail across portions of South Central Kansas on Friday, April 8th 2011. Storms first developed over northwest and north-central Oklahoma along a dryline during the early evening hours of April 8th.
- Tornadoes and Hail in Virginia, April 8, 2011A high pressure centered over New England helped push a back door cold front to the vicinity of the Blue Ridge Mountains.
- Damaging Wind in Virginia, April 8, 2011A boundary across the area triggered isolated severe thunderstorms during the early morning hours on the 8th. Storm reports were for damaging thunderstorm wind...but dime-size hail was reported in Russell County.
- Hail in Missouri, April 8 to 9, 2011A warm front moved northeast across the area, during the evening hours of April 8,|2011, into the early morning hours of April 9, 2011. There were numerous reports of|hail.
- Hail in Kansas, April 8, 2011A warm front lifted north across the area during the late evening hours of April 8, 2011. Thunderstorms associated with the front, generated one report of hail.
- Hail and Damaging Winds in Oklahoma, April 8 to 9, 2011A frontal boundary extended across northeastern Oklahoma from an area of low pressure located over north-central Oklahoma. Severe thunderstorms developed during the late evening within the moist and unstable air mass south of the front.
- Tornado and Hail in Virginia, April 9, 2011Boundary across the area triggered scatter severe thunderstorms during the afternoon and evening hours on the 9th. Storm reports were for both large hail and damaging thunderstorm winds.
- Hail in North Carolina, April 9, 2011A high pressure centered over New England pushed a back door cold front into portions of Northwest North Carolina. This front, combined with an upper level low pressure system, triggered a few severe thunderstorms.
- Hail in North Carolina, April 9, 2011As a backdoor cold front moved into an environment with high shear and moderate instability, isolated severe storms with large hail developed in the Triad.
- Tornadoes and Flash Flooding in Tennessee, April 9, 2011A boundary across the area triggered scattered severe thunderstorms during the afternoon and evening hours. Six tornadoes touched down across northeast Tennessee and into southwest Virginia.
- Hail and Damaging Wind in Missouri, April 9, 2011Scattered thunderstorms developed across eastern Kansas during the late evening of April 8th. These storms then spread and developed into the Missouri Ozarks during the overnight hours.
- Hail in Illinois, April 9, 2011Strong to severe storms developed as a storm system moved through the region.
- Hail in Illinois, April 9, 2011Non-severe hail fell in Rock Island, IL during the early morning hours of April 9.
- Hail and Lightning Strike in Illinois, April 9, 2011As an upper-level disturbance interacted with a stationary frontal boundary draped across southern Illinois, thunderstorms developed during the pre-dawn hours of April 9th. The storms remained along and south of a Winchester...to Taylorville...to Charleston-Mattoon line.
- Hail in Missouri, April 9, 2011Strong to severe storms developed as a storm system moved through the region.
- Hail in Missouri, April 9, 2011An early morning mesoscale convective system crossed southeast Missouri. The system formed along and south of a warm front that extended from central Missouri to the Lower Ohio Valley. A few storms produced marginally severe hail.
- Hail in Texas, April 9, 2011An isolated severe thunderstorm developed during the early morning hours across a part of the northwest Texas Panhandle producing hail. No damages or injuries were reported.
- Hail and Lightning Strikes in Illinois, April 9, 2011An early morning mesoscale convective system crossed southern Illinois. The system formed along and south of a warm front that extended from central Missouri to the Lower Ohio Valley. An isolated storm produced nickel-size hail.
- Flash Flooding and Flood in Indiana, April 9, 2011Scattered thunderstorms pushed eastward across central and southern Illinois into central Indiana during the morning hours of April the 9th.
- Hail in Minnesota, April 9, 2011Thunderstorms produced marginally large hail in Pipestone and Murray counties on the morning of April 9th.
- Hail and Damaging Winds in Indiana, April 9, 2011A quasi-stationary boundary stretched from southwest Indiana, across the Ohio River to just south of Lexington, KY the morning of April 9. A weakening MCS associated with a shortwave traveled across the area during the daytime.
- Hail in Indiana, April 9, 2011An early morning mesoscale convective system crossed southwest Indiana. The system formed along and south of a warm front that extended from central Missouri to the Lower Ohio Valley. Isolated storms produced dime-size hail.
- Hail in Minnesota, April 9, 2011A series of thunderstorms moved across northern Iowa, and into far southern Minnesota during the early morning hours of Sunday, April 10th. Most of the thunderstorms produced heavy rainfall and pea to dime size hail.
- Hail and Damaging Winds in Kentucky, April 9, 2011A quasi-stationary boundary stretched from the Ohio River to just south of Lexington the morning of April 9. A weakening MCS associated with a shortwave traveled across the area during the daytime.
- Damaging Wind in Kentucky, April 9, 2011A complex of storms moved through during the morning hours. The main threat from these storms was damaging wind.
- Tornadoes and Hail in Kentucky, April 9, 2011On April 9th, an stationary boundary draped across eastern Kentucky and a reinvigorated MCS moving into eastern Kentucky combined with afternoon heating set the stage for a high moderate severe weather event for east Kentucky.
- Tornado and Hail in North Carolina, April 9, 2011Thunderstorms initiated over the mountains of North Carolina during the afternoon hours. As the afternoon progressed, several supercell thunderstorms developed which tracked southeast across the foothills and piedmont along a slow moving surface cold front.
- Hail in Kentucky, April 9, 2011A mesoscale convective complex moved southeast out of Indiana across eastern Kentucky and into southern West Virginia. With ample moisture, instability, and lift, new storms formed ahead of the initial complex.
- Hail in North Carolina, April 9, 2011A high pressure centered over New England pushed a back door cold front to northwest North Carolina. At the same time a strong upper level low pressure system approached from the west during the afternoon of the 9th.
- Flash Flooding and Hail in West Virginia, April 9, 2011A mesoscale convective complex moved southeast out of Indiana across eastern Kentucky and into southern West Virginia. With ample moisture, instability, and lift, new storms formed ahead of the initial complex.
- Hail and Damaging Wind in Virginia, April 9, 2011A mesoscale convective complex moved southeast out of Indiana across eastern Kentucky and into southern West Virginia and western Virginia. With ample moisture, instability, and lift, new storms formed ahead of the initial complex.
- Hail in Virginia, April 9, 2011A high pressure centered over New England pushed a back door cold front to far southwestern Virginia. At the same time a strong upper level low pressure system approached from the west during the afternoon of the 9th.
- Hail in Wisconsin, April 9, 2011Several thunderstorms that moved across southern Minnesota during the morning and early afternoon of Saturday, April 9th, moved into west central Wisconsin, and produced an isolated severe hail storm near Holcombe, Wisconsin.
- Hail in South Carolina, April 9, 2011Thunderstorms initiated over the mountains of North Carolina during the afternoon hours. As the afternoon progressed, several supercell thunderstorms developed which tracked southeast across the foothills and piedmont along a slow moving surface cold front.
- Hail and Damaging Winds in South Carolina, April 9, 2011Supercell thunderstorms rolled across the upper Midlands and Pee Dee region and produced large hail up to the size of baseballs. The insurance industry estimates $45 million in damages across the state.
- Tornado and Hail in Iowa, April 9 to 10, 2011A large upper level trough of low pressure moved from the Rockies east toward the central U.S. on Saturday April 9th. As it did, it caused a warm front to lift into eastern Nebraska and western Iowa.
- Hail and Damaging Winds in South Carolina, April 9 to 10, 2011A potent mid-level shortwave and associated cold pool topped the upper ridge axis to our west and then moved rapidly southeast and across the eastern Carolinas after dark.
- Hail in Nebraska, April 9, 2011A large upper level trough of low pressure moved from the Rockies east toward the central U.S. on Saturday April 9th. As it did, it caused a warm front to lift into eastern Nebraska and western Iowa.
- Tornadoes and Hail in Iowa, April 9, 2011Thunderstorms produced widespread severe weather in northwest Iowa during the evening of April 9th, beginning at the end of the afternoon.
- Hail and Damaging Wind in South Dakota, April 9, 2011Thunderstorms produced large hail at a few locations in southeast South Dakota during the early evening of April 9th. There was also one report of damaging winds.
- Hail in Nebraska, April 9, 2011This Saturday evening found South Central Nebraska on the very fringes of an area under a considerable risk of severe thunderstorm development, as a strong warm front focused a pronounced corridor of severe storms from northeast Nebraska into northwest Iowa, including several…
- Tornadoes and Hail in Iowa, April 9, 2011A very dynamic weather pattern set up over the central U.S. during the day on the 9th. A deep trough formed aloft over the southeast U.S. with a strong southwest flow setting up over Iowa at all levels.
- Hail in Kansas, April 9, 2011Severe thunderstorms develop during the early evening and produced hail across Edwards and Stafford counties.
- Hail in Kansas, April 9, 2011An isolated supercell thunderstorm developed along a dry line during the evening hours of April 9th, 2011. As this high based storm tracked to the northeast, it produced hail up to the size of golfballs, mainly across Barton and Rice counties.
- Hail in Nebraska, April 9, 2011Thunderstorms produced large hail at two locations in Dakota County in extreme northeast Nebraska during the evening of April 9th.
- Lightning Strike in South Carolina, April 9, 2011Strong thunderstorms produced lightning that caused damage.
- Hail in Minnesota, April 9, 2011Thunderstorms produced large hail in southwest Minnesota on the evening of April 9th, with reports from Pipestone and Lyon Counties.
- Hail and Damaging Winds in South Carolina, April 9, 2011A back door cold front in combination with a warm and unstable air mass, resulted in scattered strong to severe thunderstorms across southern South Carolina.
- Hail in Iowa, April 9 to 10, 2011A warm front lifted north into southern Minnesota during the late evening hours of April 9th and early morning hours of April 10th. Severe thunderstorms developed along the warm front and produced large hail over parts of northeast Iowa.
- Hail in Michigan, April 10, 2011A low pressure system tracking from Minnesota into northwest Ontario helped spawn thunderstorms with dime to penny-sized hail on the 10th.
- Hail in Wisconsin, April 10, 2011Scattered thunderstorms developed north of a warm front. One of the storms produced nickel size hail and winds to 45 mph.
- Hail and Damaging Winds in Michigan, April 10, 2011Several clusters of strong to severe thunderstorms moved onshore from central Lake Michigan into Northwest Lower Michigan.
- Hail in Michigan, April 10, 2011Thunderstorms with hail developed during the early morning hours of April 10 across central lower Michigan. An isolated severe thunderstorm near Wolf Lake produced one inch diameter hail.
- Hail in Michigan, April 10, 2011A marginal severe thunderstorm moved through northern Huron county.
- Tornadoes and Flooding in Wisconsin, April 10 to 14, 2011A cold front pushed east into Wisconsin during the late afternoon and evening hours of April 10th. Severe thunderstorms developed along the cold front and produced very large hail and three tornadoes over portions of western and central Wisconsin.
- Hail in Minnesota, April 10, 2011Hail fell near Lake George in Hubbard County on the 10th. One strong thunderstorm formed in the zone of warm advection as an area of surface low pressure moved from near Sioux Falls, South Dakota, toward Duluth, Minnesota.
- Hail and Damaging Winds in Minnesota, April 10, 2011In the late morning on April 10, 2011, a small cluster of thunderstorms moved across parts of northeast Minnesota, producing some severe hail and wind gusts. These thunderstorms were elevated, and thus produced severe weather despite surface temperatures in the area in the 40s.
- Tornadoes and Hail in Wisconsin, April 10, 2011A strong early Spring cold front moved across eastern Minnesota during the afternoon of Sunday, April 10th. Ahead of this cold front, strong southerly winds and instability made for a moderate risk of severe weather based the Storm Prediction Center and atmospheric dynamics.
- Hail and Damaging Wind in Iowa, April 10, 2011A cold front pushed east into Wisconsin during the afternoon and evening hours of April 10th. Severe thunderstorms developed along the cold front and produced large hail and damaging winds over parts of northeast Iowa.
- Hail and Damaging Winds in Minnesota, April 10, 2011A cold front pushed east into Wisconsin during the afternoon and evening hours of April 10th. Severe thunderstorms developed along the cold front and produced large hail and damaging winds over portions of southeast Minnesota.
- Hail in Minnesota, April 10, 2011A strong early Spring cold front moved across eastern Minnesota during the afternoon of Sunday, April 10th. Ahead of this cold front, strong southerly winds and instability made for a moderate risk of severe weather based the Storm Prediction Center and atmospheric dynamics.
- Tornadoes and Hail in Wisconsin, April 10, 2011Thunderstorms developed along and ahead of a cold front as it encountered moist and unstable air across Wisconsin. A record number of tornadoes for April struck Wisconsin on April 10.
- Hail in Michigan, April 10, 2011A strong upper level disturbance contributed to a second round of strong to severe thunderstorms across Northern Michigan.
- Hail and Damaging Wind in Wisconsin, April 10, 2011By afternoon on April 10th, a surface low had moved close to the western tip of Lake Superior, ushering a warm and humid air mass into northwest Wisconsin. Thunderstorms developed quickly in the late afternoon but exited to the north and east after only several hours.
- Tornadoes and Hail in Texas, April 10 to 11, 2011A strong upper level low pressure system over the southern Rockies aided in the late evening development of severe thunderstorms along a dryline across north central and central Texas.
- Damaging Wind in Iowa, April 10, 2011A cold front moved through the area during the evening of April 10 sparking a line of thunderstorms. One of the stronger storms produced a 66 mph wind gust in Mount Pleasant, IA around 815 pm CDT.
- Hail and Damaging Winds in Oklahoma, April 10, 2011A strong storm system moved into the central Plains, with a surface low pressure quickly moving east through Kansas. South of the low pressure, a dry line moved east of I-35 by late afternoon, with a cold front overtaking the dry line near eastern/southeast Oklahoma.
- Tornado and Damaging Winds in Wisconsin, April 10, 2011An outbreak of severe thunderstorms, caused by low pressure moving from southwest Minnesota across northwest Wisconsin, produced 10 tornadoes in Wisconsin, which tied a record for the largest number of tornadoes in one day in the month of April in the state.
- Hail and Damaging Wind in Missouri, April 10, 2011A strong cold front moved through the region, triggering showers and thunderstorms. Some of the storms became severe producing large hail and damaging winds.
- Tornado and Hail in Missouri, April 10 to 11, 2011Thunderstorms which developed during the evening hours moved across the Ozarks and produced hail and damaging winds. The storms were initially multi-cellular in mode with a few embedded supercells, before transitioning into a mix of multicell clusters and line segments.
- Hail and Damaging Winds in Texas, April 10, 2011A cold front and dryline interacted with a strong upper level disturbance to produce a couple of lines of severe thunderstorms mainly east of a line from Abilene to San Angelo to Sonora. These storms produced golfball size hail and 60 mph winds.
- Hail and Damaging Wind in Illinois, April 10, 2011A cold front moved through the area during the evening of April 10 sparking a line of thunderstorms. A few of the storms surpassed severe thresholds, producing one inch diameter hail and damaging winds.
- Damaging Winds in Illinois, April 10 to 11, 2011A strong cold front moved through the region, triggering showers and thunderstorms. Some of the storms became severe producing large hail and damaging winds.
- Damaging Winds in Illinois, April 10, 2011During the late evening and overnight hours of April 10th, strong thunderstorms with damaging winds and hail moved across Northern Illinois.
- Hail in Texas, April 10, 2011A strong storm system moved into the central Plains, with a surface low pressure quickly moving east through Kansas. South of the low pressure, a cold front began overtaking the dry line located west of I-44 over northern Texas.
- Hail and Damaging Winds in Oklahoma, April 10 to 11, 2011A cold front pushed into the area on the evening of the 10th with a very warm and moist atmosphere in place across eastern Oklahoma and northwestern Arkansas.
- Hail and Damaging Wind in Illinois, April 10 to 11, 2011A strong cold front pushed into west-central Illinois during the evening of April 10th, triggering scattered thunderstorms.
- Hail and Damaging Wind in Arkansas, April 10, 2011A cold front pushed into the area on the evening of the 10th with a very warm and moist atmosphere in place across eastern Oklahoma and northwest Arkansas. Thunderstorms developed along this boundary, a few of which produced large hail and damaging wind.
- Hail and Damaging Winds in Texas, April 10 to 11, 2011A cold front moved through South Central Texas during the night of April 10th and 11th. This front caused thunderstorms initially over the northwestern counties which eventually spread to the east.
- Damaging Winds in Indiana, April 10 to 11, 2011During the late evening of April 10th into the early morning hours of April 11th, strong to severe thunderstorms with damaging winds moved across northwest Indiana.
- Damaging Winds and Lightning Strike in Indiana, April 10 to 11, 2011A cold front moved through the area during the early morning hours of April 11th. Scattered thunderstorms produced isolated wind damage.
- Hail and Damaging Winds in Georgia, April 11, 2011A deep upper-level low pressure system was moving east from the mid-south toward the southeast U.S. The overall upper atmospheric pattern was similar to that which accompanied the major severe weather event of April 4th and 5th.
- Damaging Winds in Texas, April 11, 2011A strong upper level trough moved eastward across Oklahoma into Arkansas during the early morning hours of April 11th.
- Damaging Winds in Oklahoma, April 11, 2011A strong upper level trough moved eastward across Oklahoma into Arkansas during the early morning hours of April 11th.
- Damaging Wind in Michigan, April 11, 2011An isolated marginally severe storm collapsed near Commerce producing severe winds.
- Damaging Winds in Arkansas, April 11, 2011A strong upper level trough moved eastward across Oklahoma into Arkansas during the early morning hours of April 11th.
- Damaging Winds in Arkansas, April 11, 2011Scattered thunderstorms entered northwest Arkansas late on the evening of the 10th. The storms soon developed into a line while sweeping eastward. The majority of the storms exited the eastern side of the Little Rock County Warning Area by mid-morning of the 11th.
- Damaging Wind in Arkansas, April 11, 2011A cold front moved through the region. A few thunderstorms developed during the morning hours in the warm and unstable air in advance of the front. These storms produced some damaging winds across East Arkansas.
- Flash Flood and Damaging Winds in Tennessee, April 11, 2011A cold front moved through the Midsouth with a few rounds of thunderstorms. During the early morning hours storms developed in the warm and unstable air in advance of the front. These storms produced damaging winds.
- Damaging Winds in Kentucky, April 11, 2011Showers and storms moved southeast across the lower Ohio Valley through the day on April 11 as a cold front slowly tracked across the area. A few of these storms became severe during the afternoon hours across south central Kentucky as they encountered more unstable air.
- Damaging Wind in Mississippi, April 11, 2011A cold front moved through the Midsouth. A squall line developed during the late morning and the afternoon and moved across most of North Mississippi producing isolated damaging winds.
- Hail and Damaging Winds in Tennessee, April 11, 2011During the middle to early evening hours on Monday, April 11th, as a strong cold front moved northwest to southeast across Middle Tennessee, several severe thunderstorms developed along and out ahead of this frontal passage.
- Hail and Damaging Winds in Alabama, April 11, 2011A squall line moved rapidly southeast through the region along a cold front. Although most of the storms produced wind gusts of 40 to 50 mph, a few of the storms produced wind damage.
- Damaging Winds in Mississippi, April 11, 2011Showers and thunderstorms developed in association with a cold front moving through the area. Some of these storms produced damaging winds.
- Tornado and Hail in Alabama, April 11, 2011Ahead of a cold front associated with a strong upper level storm system, a squall line moved across Central Alabama on Monday, April 11. This line of thunderstorms produced widespread wind damage, knocked down numerous trees and power lines and damaged many homes and buildings.
- Lightning Strike in Pennsylvania, April 11, 2011Lightning from a weakening line of thunderstorms that moved through the Lehigh Valley during the evening of the 11th started a fire in Lehigh County.
- Damaging Winds in Tennessee, April 11, 2011Isolated thunderstorms developed along a boundary during the late evening hours. A few storms became severe and produced damaging thunderstorm winds.
- Damaging Winds in North Carolina, April 11 to 12, 2011Widespread rain with a few embedded thunderstorms developed over western North Carolina ahead of an approaching area of low pressure. Even though the thunderstorms were weak, strong gradient winds ahead of the low resulted in a few damaging wind gusts with the storms.
- Flash Flooding and Flooding in Kentucky, April 12, 2011A slow moving low pressure system tracked across southeastern KY on April 12. Ample moisture from the Gulf of Mexico wrapped around this vertically stacked low pressure system into central Kentucky. A deformation band set up across this area.
- Flash Flooding and Flooding in Kentucky, April 12, 2011On April 12th, a slow exiting low pressure system produced constant rainfall over the northern portion of the CWA as the system was slow to exit the area. The low pressure center eventually moved off to the north but not before 2 flash flood warnings needed to be issued.
- Flash Flooding in Virginia, April 12, 2011A strong upper level low pressure approaching from the west triggered shower and thunderstorm activity across the region. These storms were slow moving trained over the same areas producing very heavy rainfall.
- Flash Flooding in Virginia, April 12, 2011Low pressure both at the surface and the upper levels of the atmosphere passed through the region on the 12th. Showers and thunderstorms developed across the area.
- Flash Flooding in West Virginia, April 12, 2011Low pressure both at the surface and the upper levels of the atmosphere passed through the region on the 12th. Showers and thunderstorms developed across the area.
- Hail in Virginia, April 12, 2011Low pressure both at the surface and the upper levels of the atmosphere passed through the region on the 12th. There was enough cold air aloft and forcing from this system for showers and thunderstorms to develop.
More
Every billion-dollar disasterEvery storm of 2011Tornadoes in 2011
Sources
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.