Central Severe Storms

Losses, 2024 dollars

$1.3 billion

Losses at the time

$1.1 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.

• Flash Flood in New Mexico, July 6, 20211 eventA persistent weather pattern and an abundant amount of moisture remained locked in place across New Mexico on July 5, 2021. This resulted in yet another active monsoon day across northern and central New Mexico with numerous showers and thunderstorms across the area.
• Hail in South Dakota, July 6, 20210.88 in hail · 1 eventA thunderstorm produced nickel sized hail near Mud Butte.
• Damaging Wind in Michigan, July 6, 202152 kt wind · 1 eventAn isolated severe storm affected portions of Montcalm county with high winds.
• Hail in South Dakota, July 6, 20211 in hail · 2 eventsA supercell thunderstorm tracked southward across western Harding County before weakening as it moved into Butte County. The storm produced quarter sized hail.
• Hail and Damaging Wind in Montana, July 6, 20211 in hail · 2 eventsThe lee-side environment of the northern Rocky Mountains combined sufficient moisture, instability and shear to allow a few scattered severe thunderstorms to impact portions of Garfield County.
• Hail in Wyoming, July 6, 20211.25 in hail · 3 eventsEasterly to southeasterly near surface flow, to the cool side of a zone of stronger differential surface heating and deeper boundary-layer mixing to the east of the higher terrain, resulted in sufficient boundary-layer moisture to contribute to CAPE|on the order of 1000-1500…
• Flash Flood in Louisiana, July 7, 20211 eventA flash flooding event occurred due a stalled frontal boundary in place helping to supply environmental lift along with ample Gulf moisture to produce slow-moving clusters of showers and thunderstorms.
• Tornadoes and Tropical Storm in Florida, July 7 to 8, 20211 death · $3,000 · EF1 · 26 eventsTropical Storm Elsa tracked NNE across the western tier of the local forecast area through the day on Wed, July 7th. The storm made landfall along the FL Big Bend coast.
• Flash Flooding and Flood in Texas, July 7, 2021$510,000 · 7 eventsA slow moving surface to mid level low pressure system developed over the Coastal Bend of south Texas on July 6th. This was the start of a multi-day heavy rain event across the Coastal Bend as the low pressure system remained nearly stationary through the 8th of July.
• Flash Flooding in Mississippi, July 7, 2021$62,000 · 6 eventsA moist airmass was in place and contributed to flash flooding across the region during the afternoon hours.
• Damaging Winds in West Virginia, July 7, 2021$25,000 · 50 kt wind · 4 eventsA nearly stationary front remained to the north of the region on July 7th. An upper trough dug across the Great Lakes during the daytime hours as well.
• Damaging Winds in Ohio, July 7, 202155 kt wind · 17 eventsA surface front extended generally eastward from southern Lower Michigan and Lake Erie to northwest Pennsylvania and far-southern New York, and moved little during the early afternoon through late evening of the 7th.
• Damaging Wind in Wisconsin, July 7, 2021$1,000 · 50 kt wind · 1 eventClusters of thunderstorms developed along a slow moving cold front over far southern WI.|Downburst winds damaged trees and a shed.
• Damaging Winds in Michigan, July 7, 2021$2.0 million · 56 kt wind · 17 eventsA line of severe thunderstorms produced scattered tree damage along the M-59 corridor.
• Tornado and Tropical Storm in Georgia, July 7, 202117 injured · EF1 · 9 eventsTropical Storm Elsa tracked NNE across the western tier of the local forecast area through the day on Wed, July 7th. The storm made landfall along the FL Big Bend coast.
• Flash Flooding and Hail in Pennsylvania, July 7, 2021$579,000 · 1 in hail · 55 eventsA nearly stationary front remained to the north of the region on July 7th. An upper trough dug across the Great Lakes during the daytime hours as well.
• Damaging Winds in Massachusetts, July 7, 202150 kt wind · 3 eventsStrong to severe thunderstorms developed along a stalled frontal boundary during the afternoon hours of Wednesday, July 7th, 2021. The strongest storms produced a couple reports of downed trees.
• Damaging Winds in Ohio, July 7, 2021$19,000 · 50 kt wind · 6 eventsA nearly stationary front remained to the north of the region on July 7th. An upper trough dug across the Great Lakes during the daytime hours as well.
• Hail and Damaging Winds in Virginia, July 7, 2021$16,000 · 1 in hail · 6 eventsIsolated severe thunderstorms produced localized wind damage and sporadic hail over portions of northwestern Virginia and northeastern Maryland.
• Damaging Winds in Maryland, July 7, 2021$75,000 · 60 kt wind · 6 eventsIsolated severe thunderstorms produced localized wind damage and sporadic hail over portions of northwestern Virginia and northeastern Maryland.
• Hail and Damaging Winds in Pennsylvania, July 7, 2021$103,000 · 1 in hail · 40 eventsScattered showers and storms developed in a moderate CAPE, moderate shear environment to the south of a quasi-stationary front draped across southern New York state during the afternoon and evening of July 7, 2021.
• Hail and Damaging Wind in New Hampshire, July 7, 20211.25 in hail · 3 eventsA cold front moving across New England sparked isolated thunderstorms across southeastern New Hampshire, one of which produced wind damage and large hail in Pelham.
• Flash Flooding and Damaging Winds in West Virginia, July 7, 2021$43,000 · 50 kt wind · 8 eventsAn unstable atmosphere was in place on the afternoon of July 7th ahead of a cold frontal passage. Scattered thunderstorms crossed through the state during the heat of the afternoon and resulted in strong wind gusts that blew down several trees in the region.
• Damaging Winds in Connecticut, July 7, 2021$14,000 · 53 kt wind · 12 eventsA hot, humid air mass was in place across southern New England, with high downdraft CAPE when a cold front pushed into southern New England in the late afternoon and evening hours.
• Hail and Damaging Winds in New York, July 7, 2021$185,000 · 1 in hail · 32 eventsA storm system over the Great Lakes triggered thunderstorms in the afternoon and evening across Central New York. Unstable conditions allowed for many severe storms to develop. Many of these storms had damaging winds knocking down trees and wires. A few also produced large hail.
• Damaging Wind in Michigan, July 7, 202160 kt wind · 1 eventAn isolated severe storm affected areas in and near Battle Creek.
• Damaging Winds in Pennsylvania, July 7, 202155 kt wind · 5 eventsA surface front extended generally eastward from southern Lower Michigan and Lake Erie to northwest Pennsylvania and far-southern New York, and moved little during the early afternoon through late evening of the 7th.
• Damaging Wind in Connecticut, July 7, 2021$4,000 · 52 kt wind · 1 eventA pre-frontal trough in advance of a slow moving cold front / stationary boundary in a warm and humid air mass triggered a severe thunderstorm across Southern Connecticut.
• Flash Flooding in Oklahoma, July 7, 20212 eventsScattered thunderstorms developed during the afternoon of the 7th ahead of a cold front across northern Oklahoma, with storms repeatedly training over portions of the Enid area. Reports of flash flooding were received with these storms.
• Hail in Wyoming, July 7, 20211 in hail · 1 eventSevere thunderstorm moved across the mainly rural northeast portion of Goshen County producing hailstones at least to one inch in diameter as Emergency Manager noted after the storm had passed.
• Flash Flood and Damaging Winds in New York, July 7, 2021$12,000 · 51 kt wind · 8 eventsA nearly stationary boundary just south of Lake Ontario divided a moist unstable air mass from a much cooler one. Instability was generating a CAPE of around 2000 J/Kg south of the boundary by late afternoon, but wind shear was limited with 700 hPa winds only around 20 knots.
• Damaging Winds in Montana, July 7, 202171 kt wind · 13 eventsWarm and moist surface conditions with temperature/dewpoints in the 80s/50s F respectively contributed to between 500 and 1000 J/kg of MLCAPE across much of south-central and southeast Montana.
• Tornado and Tropical Storm in Georgia, July 7 to 8, 20211 injured · EF1 · 6 eventsElsa initially developed as a Tropical Depression over the central tropical Atlantic late in the evening of June 30th, 2021.
• Hail and Damaging Winds in Pennsylvania, July 7, 2021$45,000 · 1 in hail · 14 eventsA storm system over the Great Lakes triggered thunderstorms in the evening across northeastern PA. Unstable conditions allowed for many severe storms to develop. These storms produced damaging winds, knocking down multiple trees.
• Damaging Wind in Wyoming, July 7, 202152 kt wind · 1 eventA severe thunderstorm produced small hail and wind gusts to 60 mph southwest of Sundance.
• Damaging Wind in Arizona, July 7, 2021$50,000 · 56 kt wind · 1 eventScattered thunderstorms developed and moved southwest across Graham, Greenlee and Cochise counties. One storm produced damaging winds in the Sierra Vista area.
• Tornadoes and Tropical Storm in South Carolina, July 7 to 8, 2021$1.1 million · EF1 · 8 eventsElsa initially developed as a Tropical Depression over the central tropical Atlantic late in the evening of June 30th, 2021.
• Damaging Wind in South Dakota, July 7, 202151 kt wind · 1 eventA thunderstorm briefly became severe and produced a wind gust near 60 mph east of Oelrichs.
• Damaging Wind in Massachusetts, July 8, 2021$1,000 · 50 kt wind · 1 eventAn isolated severe thunderstorm formed overnight in eastern MA, along a stalled front and in association with the nose of a low- and mid-level jet.
• Tornado in South Carolina, July 8, 2021EF0 · 1 eventElsa began as a tropical wave about 1000 miles east of the Windward Islands and late on June 30, developed into a tropical depression. As it continued moving WNW, Elsa was named on July 1 as a tropical storm.
• Flash Flooding in Texas, July 8, 2021$200,000 · 11 eventsThe multi-day heavy rain event across the Coastal Bend continued on the 8th as the low pressure system remained nearly stationary.
• Damaging Wind and Lightning Strike in Michigan, July 8, 20214 injured · 50 kt wind · 2 eventsAn isolated severe thunderstorm developed near the Detroit River.
• Hail and Damaging Winds in Pennsylvania, July 8, 20211 in hail · 25 eventsTropical Storm Elsa approached the mid-Atlantic states from the south on July 8. Downstream of Elsa, a warm and moist environment was present. A slow moving frontal boundary also resided over northern New Jersey, northern Pennsylvania, and into New York.
• Flash Flooding in New York, July 8, 20212 eventsA cluster of thunderstorms resulted in isolated flash flooding in portions of the Mid-Hudson Valley on the 8th. A road was closed and a vehicle was stranded in floodwaters.
• Hail and Damaging Winds in Indiana, July 8, 2021$249,000 · 74 kt wind · 6 eventsDuring the late afternoon hours of July 8th, a complex of thunderstorms associated with a weak upper level low pressure system moved through much of central Indiana.
• Hail and Damaging Winds in New Jersey, July 8, 2021$14,000 · 2.5 in hail · 13 eventsA pre-frontal trough just ahead of a frontal boundary in a warm and humid air mass triggered severe thunderstorms across Northeastern New Jersey.
• Damaging Winds in Virginia, July 8, 2021$23,000 · 55 kt wind · 4 eventsA couple bands of thunderstorms well out ahead of Tropical Storm Elsa produced a few instances of wind damage.
• Damaging Winds in Ohio, July 8, 202155 kt wind · 4 eventsA stationary surface front extended from southeastern Lower Michigan and southern Ontario to Lake Ontario during the early afternoon through early evening of the 8th. Within the warm sector south of the front, a squall line moved eastward across northeast Ohio.
• Hail and Damaging Winds in Montana, July 8, 20211.75 in hail · 30 eventsStrong daytime heating combined with an unstable air mass and favorable winds to support multiple severe thunderstorms across northeast Montana.
• Tornado in North Carolina, July 8, 20211 eventA supercell associated with Tropical Storm Elsa moved north from the Pamlico|Sound into mainland Hyde County during the afternoon. Photo and video |showed a tornado of unknown intensity in rural areas of Hyde County.
• Damaging Winds and Lightning Strike in New Jersey, July 8, 202165 kt wind · 20 eventsTropical Storm Elsa approached the mid-Atlantic states from the south on July 8. Downstream of Elsa, a warm and moist environment was present. A slow moving frontal boundary also resided over northern New Jersey, northern Pennsylvania, and into New York.
• Damaging Wind in New York, July 8, 2021$1,000 · 52 kt wind · 1 eventA pre-frontal trough just ahead of a frontal boundary in a warm and humid air mass triggered a severe thunderstorm across Southeastern New York.
• Damaging Wind in Illinois, July 8, 2021$1,000 · 52 kt wind · 1 eventIsolated strong to severe thunderstorms developed during the heat of the afternoon in a very warm and unstable air mass.
• Damaging Winds in Indiana, July 8, 2021$17,000 · 55 kt wind · 2 eventsIsolated strong to severe thunderstorms developed during the heat of the afternoon in a very warm and unstable air mass.
• Damaging Winds in Pennsylvania, July 8, 2021$16,000 · 52 kt wind · 4 eventsShowers and thunderstorms developed over the Lower Susquehanna Valley during the afternoon of July 8, 2021, in a very warm and humid airmass between a stationary front over New York state and an approaching Tropical Strom (Elsa) over central North Carolina.
• Flash Flood and Damaging Winds in New York, July 8, 2021$68,000 · 51 kt wind · 10 eventsShowers and thunderstorms developed during the afternoon along a west-to-east oriented frontal boundary along the south shore of Lake Ontario. Instability generated CAPE values of around 1500 J/kg along and just south of the frontal boundary.
• Tornadoes in North Carolina, July 8, 2021$25,000 · EF0 · 2 eventsThe center of Tropical Storm Elsa tracked north just inland of the Middle Atlantic Coast from Thursday morning through Thursday night, July 8th. Outer bands east of the Tropical Storm center produced two weak tornadoes across portions of northeast North Carolina.
• Flash Flooding in New Jersey, July 8, 20213 eventsA predecessor rainfall event resulted in flash flooding across portions of the area as moisture streaming northward ahead of Tropical Storm Elsa encountered a stationary boundary draped across the area.
• Flash Flooding in New York, July 8, 202111 eventsA predecessor rainfall event resulted in flash flooding across portions of the area as moisture streaming northward ahead of Tropical Storm Elsa encountered a stationary boundary draped across the area.
• Tornado and Damaging Winds in New York, July 8, 2021$169,000 · EF1 · 4 eventsWarm, humid conditions supported a quickly destabilizing atmosphere during the afternoon. A line of thunderstorms developed and passed through Central New York. Damaging winds were associated with the northern portion of the line of storms.
• Flash Flood in North Carolina, July 8, 20211 eventTropical Storm Elsa moved through central North Carolina during the daytime hours of Thursday, July 8.
• Flash Flooding and Flood in Indiana, July 8 to 12, 202151 kt wind · 13 eventsOn July 8th, a cold front dropped south through southern Indiana in a saturated environment. Even with moderate instability and shear values, severe thunderstorms were able to produce wind damage across southern Indiana along the Interstate 65 corridor.
• Damaging Wind in Kentucky, July 8, 2021$1,000 · 50 kt wind · 1 eventShowers and thunderstorms developed ahead of a cold front moving through the region.
• Hail and Damaging Winds in North Dakota, July 8, 20211.75 in hail · 20 eventsAn upper level low along with a surface trough approaching western North Dakota led to thunderstorms developing during the late afternoon and evening hours. Some of these storms became severe in an environment of strong instability and deep layer shear.
• Hail and Damaging Winds in South Dakota, July 8, 20212.75 in hail · 12 eventsA long-lived supercell thunderstorm developed over Butte County and tracked southeast across portions of western South Dakota into Nebraska before weakening. The storm produced very large hail to baseball size along its path.
• Flash Flooding and Heavy Rain in Virginia, July 8 to 9, 202194 eventsThe center of Tropical Storm Elsa tracked north just inland of the Middle Atlantic Coast from Thursday morning through Thursday night, July 8th.
• Damaging Wind in Pennsylvania, July 8, 2021$1,000 · 50 kt wind · 1 eventWarm, humid conditions supported a quickly destabilizing atmosphere during the afternoon. This allowed for scattered thunderstorms to develop across Northeastern Pennsylvania. One storm became severe, knocking down a tree onto a roadway.
• Tornadoes in Virginia, July 8, 2021$25,000 · EF0 · 3 eventsThe center of Tropical Storm Elsa tracked north just inland of the Middle Atlantic Coast from Thursday morning through Thursday night, July 8th. Outer bands east of the Tropical Storm center produced three weak tornadoes across portions of southeast Virginia.
• Damaging Winds in Kentucky, July 8 to 12, 202152 kt wind · 5 eventsOn July 8th, a cold front dropped south through central Kentucky in a saturated environment. Even with moderate instability and shear values, there was a report of severe wind damage.
• Damaging Wind in Arizona, July 8, 202152 kt wind · 1 eventA surge of moisture from the Gulf of California helped produce a strong thunderstorm over the Meyer area.
• Damaging Wind in Kentucky, July 8, 202152 kt wind · 1 eventIsolated strong to severe thunderstorms developed during the heat of the afternoon in a very warm and unstable air mass.
• Damaging Winds in Georgia, July 8 to 9, 2021$22,000 · 50 kt wind · 5 eventsRich tropical moisture left behind in the wake of the remains of Tropical Storm Elsa combined with moderate daytime heating and a series of short waves moving over the region to produce isolated severe thunderstorms across north and central Georgia each afternoon and evening.
• Hail in South Dakota, July 8, 20212 in hail · 2 eventsA supercell thunderstorm tracked across portions of northern Perkins and northern Ziebach Counties, producing large hail over golf ball size.
• Hail in South Dakota, July 8, 20212.5 in hail · 6 eventsA long-lived supercell thunderstorm tracked from North Dakota into Perkins County and then south-southeast across portions of western into south central South Dakota. The storm produced large hail near baseball size.
• Flash Flood in Arizona, July 8, 20211 eventThunderstorms developed along the Mogollon Rim during the afternoon hours before pushing through Gila County by late afternoon and early evening. Additional thunderstorms developed along terrain features over the Telegraph burn scar, producing heavy rainfall over the area.
• Damaging Wind in Kansas, July 8, 2021$10 · 1 eventDuring the late afternoon to evening hours isolated thunderstorms developed off the Front Range in Colorado and continued moving southeast as the storms merged into clusters.
• Hail in South Dakota, July 8, 20211.75 in hail · 3 eventsA cold front brought severe thunderstorms to north central South Dakota during the late evening on July 8th. Large hail, up to golf ball size, was reported.
• Hail in South Dakota, July 8 to 9, 2021$90,000 · 1.5 in hail · 9 eventsSeveral elevated supercells developed in a high shear/moderate CAPE environment as the low-level jet increased during the late evening and early overnight hours. Large hail was the primary outcome from these storms.
• Damaging Winds in Tennessee, July 8, 2021$1.0 million · 61 kt wind · 2 eventsA line of showers and thunderstorms developed along a prefrontal trough ahead of an approaching cold front during the evening hours of July 8, 2021. A few strong to severe storms occurred near the I-40 corridor.
• Hail in Nebraska, July 8, 20211.25 in hail · 2 eventsSeveral elevated supercells developed in a high shear/moderate CAPE environment as the low-level jet increased during the late evening and early overnight hours. Large hail was the primary outcome from these storms.
• Flash Flooding in Texas, July 8 to 9, 20212 eventsAn area of low pressure over South Texas generated thunderstorms that moved into South Central Texas. Some of these storms produced heavy rain that led to flash flooding.
• Hail in Iowa, July 8 to 9, 2021$500,000 · 1 in hail · 4 eventsSeveral elevated supercells developed in a high shear/moderate CAPE environment as the low-level jet increased during the late evening and early overnight hours. Large hail was the primary outcome from these storms.
• Hail in Iowa, July 9, 20211.5 in hail · 2 eventsA line of storms produced a couple of hail reports in Western Iowa.
• Tornadoes in New Jersey, July 9, 2021EF1 · 2 eventsTropical Storm Elsa affected much of the coastal mid-Atlantic on the night of July 8 and into the morning of the 9th. The storm maintained much of its intensity despite a long track over land as it began to interact with a mid-latitude trough.
• Flash Flooding and Flooding in Texas, July 9, 2021$55,000 · 12 eventsEarly on the morning of July 9th, multiple rounds of storms associated with a slow-moving low pressure system developed and streamed northward across Cameron County.
• Hail and Damaging Winds in Iowa, July 9 to 10, 20213.25 in hail · 61 eventsA shortwave pushed across the area in the overnight to morning hours of July 9th, triggering severe storms over portions of western Iowa in the early morning hours.
• Hail and Damaging Winds in Nebraska, July 9, 20214.3 in hail · 26 eventsActive severe thunderstorm afternoon across the Panhandle on the 9th with large hail up to 4.3 inches in diameter and measured wind gusts up to 75 mph.
• Flash Flooding and Flooding in Kentucky, July 9 to 11, 2021$26,000 · 55 kt wind · 33 eventsSeveral days of heavy to torrential rains and gusty winds were experienced across eastern Kentucky from July 9th through the 12th.
• Flash Flooding in Connecticut, July 9, 202115 eventsTropical Storm Elsa tracked across the eastern portion of the area during the morning hours of July 9, with heavy rainfall north and west of the storm's center resulting in widespread flash flooding across southern Connecticut.
• Flash Flooding in New York, July 9, 20216 eventsTropical Storm Elsa tracked across the eastern portion of the area during the morning hours of July 9, with heavy rainfall north and west of the storm's center resulting in flash flooding across portions of Long Island and the Lower Hudson Valley.
• Flash Flooding in Texas, July 9, 20212 eventsSeveral rounds of showers and thunderstorms produced flash flooding and associated road closures across parts of Jackson and Matagorda counties.
• Flash Flood in Tennessee, July 9, 20211 eventScattered showers and thunderstorms developed across Middle Tennessee during the morning hours on July 9. Heavy rainfall from these thunderstorms led to a localized flooding report.
• Flash Flooding in Mississippi, July 9, 2021$100,000 · 3 eventsA weak cold front stalled across extreme northern Mississippi. Showers and thunderstorms with very heavy rain developed along this boundary. These storms were slow-moving resulting in some flash flooding.
• Damaging Winds in North Carolina, July 9, 2021$10,000 · 55 kt wind · 4 eventsScattered thunderstorms and storm clusters developed over the North Carolina Piedmont during the afternoon. Several of the storms produced brief damaging wind gusts.
• Damaging Winds in New York, July 9, 2021$11,000 · 50 kt wind · 7 eventsAn upper level trough passed over Central New York, triggering scattered thunderstorms. The environment was unstable enough for a couple of storms to produce damaging winds. Trees and utility wires were knocked down as a result.
• Hail and Damaging Winds in Arkansas, July 9 to 10, 20211 in hail · 7 eventsAnother cold front was set to push into Arkansas from the north by the 10th. Preceding the front, it was hot with high temperatures largely in the lower to mid 90s on the 8th. A few spots benefitted from isolated slow moving storms and prolonged downpours.
• Damaging Winds in Maryland, July 9, 2021$32,000 · 55 kt wind · 10 eventsScattered thunderstorms produced several instances of wind damage during the afternoon hours, mainly over central and southern Maryland.
• Damaging Winds in Pennsylvania, July 9, 2021$13,000 · 50 kt wind · 5 eventsAn upper level trough passed over Northeastern Pennsylvania, triggering scattered thunderstorms. The environment was unstable enough for a couple of storms to produce damaging winds. Trees and utility wires were knocked down as a result.
• Damaging Winds in North Carolina, July 9, 2021$28,000 · 50 kt wind · 13 eventsPlentiful moisture and a couple of weak surface troughs lingered over central North Carolina after the passage of tropical storm Elsa. Saturated ground was present as a result of two to five inches of rain over the eastern Piedmont into Virginia.
• Damaging Wind in Virginia, July 9, 2021$1,000 · 1 eventScattered thunderstorms produced several instances of wind damage during the afternoon hours, mainly over central and southern Maryland.
• Hail in Wyoming, July 9, 20211.75 in hail · 5 eventsSevere thunderstorms across Laramie and Niobrara County produced hailstones up to the size of golf balls.
• Flash Flood in Tennessee, July 9, 20211 eventA weak cold front had pushed into eastern Tennessee as far south as Knoxville, and helped produce locally heavy rainfall.
• Hail in New Mexico, July 9, 20210.75 in hail · 1 eventWith an area of high pressure to the west of New Mexico, relatively drier air began to filter into the state on July 9, 2021. This led to a downtrend in storm coverage across northern and central New Mexico as record breaking heat became the main story across western New Mexico.
• Flash Flood and Flood in Pennsylvania, July 9, 2021$46,000 · 61 kt wind · 13 eventsA cold front crossed the Susquehanna Valley during the early evening hours of July 9, 2021, accompanied by scattered thunderstorms.
• Hail and Damaging Winds in Colorado, July 9, 20211 in hail · 6 eventsSevere thunderstorms produced damaging winds and large hail in Logan and Weld counties. Intense winds knocked down trees, power poles and power lines in Logan County. Peak wind gusts ranged anywhere from 60 mph to 80 mph.
• Hail and Damaging Winds in Missouri, July 9, 2021$6,000 · 52 kt wind · 4 eventsA cluster of severe thunderstorms developed over the Ozark foothills and moved east-northeast. The storms stayed mostly along and south of U.S. Highway 60. Isolated hail and tree damage accompanied the strongest storms.
• Hail in Montana, July 9, 20210.75 in hail · 1 eventA thunderstorm over Laurel produced some dime-sized hail.
• Damaging Wind in Delaware, July 9, 202150 kt wind · 1 eventIn the wake of Tropical Storm Elsa, a warm and humid air mass remained in place over the mid-Atlantic. A cold front approached the region late in the day, triggering a round of showers and thunderstorms.
• Flash Flood and Damaging Winds in Arizona, July 9, 2021$55,000 · 65 kt wind · 4 eventsAn isolated supercell thunderstorm moved west across southern Pima County during the late afternoon.
• Flash Flood and Hail in Arizona, July 9, 20211.75 in hail · 5 eventsA surge of moisture from the Gulf of California helped trigger severe thunderstorms across Yavapai County and southern Navajo County.
• Hail and Damaging Wind in Iowa, July 9, 20212.5 in hail · 13 eventsA few supercell thunderstorms developed ahead of a warm front advancing into the forecast area, where they produced gusty winds, heavy rain, and hail up to 3 inches in diameter.
• Flash Flood in Maine, July 9, 20211 eventPost Tropical Storm Elsa moved along the Downeast coast during the afternoon and evening of the 9th bringing abundant tropical moisture and heavy rains to Downeast areas. Rainfall rates occasionally reached 1.00 to 2.00 inches per hour.
• Hail in Wyoming, July 9, 20211 in hail · 3 eventsA couple of thunderstorms near Sheridan produced some dime to quarter size hail.
• Hail in Wyoming, July 9, 20211 in hail · 1 eventA thunderstorm moved off of the Bighorn Mountains and became severe as it tracked southeast. Trained spotters reported quarter-sized hail east of Buffalo.
• Damaging Winds in New Jersey, July 9, 202150 kt wind · 2 eventsIn the wake of Tropical Storm Elsa, a warm and humid air mass remained in place over the mid-Atlantic. A cold front approached the region late in the day, triggering a round of showers and thunderstorms.
• Hail and Damaging Winds in Wyoming, July 9, 20212.75 in hail · 9 eventsA long-lived supercell thunderstorm tracked across portions of northern Campbell County into Weston County, producing large hail and strong wind gusts.
• Damaging Wind in South Carolina, July 9, 202150 kt wind · 1 eventClusters of thunderstorms developed along a surface trough and moved across portions of southeast South Carolina, producing damaging wind gusts.
• Damaging Winds in Colorado, July 9, 202182 kt wind · 9 eventsStrong to severe thunderstorms were expected across much of southern Colorado on this day, especially across the plains. Severe storms did occur late in the day into the evening, with damaging wind gusts the main threats. A few gusts up to around 75-85 mph were also observed.
• Hail in South Dakota, July 9, 20211 in hail · 1 eventA thunderstorm briefly became severe over eastern Custer County, producing quarter sized hail east of Buffalo Gap.
• Damaging Winds in North Carolina, July 9, 202150 kt wind · 2 eventsA few thunderstorms developed during the evening hours. One storm became severe and produced damaging wind gusts.
• Damaging Winds in Alabama, July 9, 202150 kt wind · 2 eventsA cluster of strong to severe thunderstorms developed along an axis of strong low level lapse rates near the I-20 corridor.
• Flash Flooding and Hail in Missouri, July 9 to 11, 2021$1,000 · 1.75 in hail · 12 eventsAn active period of weather produced Isolated strong to severe storms on the 9th. Residual boundaries from these storms combined with the remnants of an MCS during the afternoon of the 10th which produced strong to severe storms with heavy rainfall|during the late afternoon and…
• Hail and Damaging Winds in Illinois, July 9, 20213 in hail · 10 eventsA few supercell thunderstorms developed ahead of a warm front advancing into the forecast area, where they produced gusty winds, heavy rain, and hail up to 3 inches in diameter.
• Hail and Damaging Wind in Wyoming, July 9, 20211 in hail · 2 eventsA long-lived supercell thunderstorm tracked southeast across southern Campbell and Weston Counties, producing hail and wind gusts over 60 mph.
• Hail and Damaging Winds in Missouri, July 9 to 10, 2021$1.5 million · 2 in hail · 21 eventsOn the evening of July 9th, intense thunderstorms developed rapidly along a warm front draped from northwest to southeast across the area. There were two rounds of thunderstorms, the first being discrete, rotating storms called supercells.
• Hail and Damaging Winds in Illinois, July 9 to 10, 2021$426,000 · 2.75 in hail · 9 eventsOn the evening of July 9th, intense thunderstorms developed rapidly along a warm front draped from northwest to southeast across the area. There were two rounds of thunderstorms, the first being discrete, rotating storms called supercells.
• Hail in South Dakota, July 9, 20211 in hail · 1 eventA severe thunderstorm tracked across northeastern Wyoming into the southern Black Hills before gradually weakening. The storm produced large hail north of Dewey.
• Damaging Winds in Kansas, July 9 to 10, 2021$28,000 · 78 kt wind · 15 eventsDuring the late afternoon on July 9th, storms developed off the Rockies and moved southeast across Northern Colorado and Southern Wyoming. As the storms moved southeast, they clustered together and produced outflow boundaries for more storms to develop along.
• Damaging Wind in South Dakota, July 9, 202155 kt wind · 1 eventA long-lived supercell thunderstorm clipped southwestern portions of Fall River County, producing some hail and wind gusts over 60 mph.
• Damaging Winds in Nebraska, July 9, 20211 injured · $121 million · 83 kt wind · 35 eventsSignificant damaging wind event strikes south central Nebraska during the late evening hours of July 9, 2021.
• Damaging Winds in Colorado, July 9, 202162 kt wind · 2 eventsDuring the late afternoon on July 9th, storms developed off the Rockies and moved southeast across Northern Colorado and Southern Wyoming. As the storms moved southeast, they clustered together and produced outflow boundaries for more storms to develop along.
• Flash Flooding and Damaging Winds in Missouri, July 9 to 10, 202161 kt wind · 11 eventsOvernight convection brought into northwest Missouri a strong storm complex from southeast Nebraska. Overall, this system produced low end wind damage across far northern Missouri.
• Damaging Winds in Nebraska, July 9 to 10, 202183 kt wind · 35 eventsA line of storms that developed over western Nebraska and South Dakota moved into a highly unstable airmass with 2500-3000 J/kg MLCAPE leading to widespread wind damage across eastern Nebraska and western Iowa.
• Damaging Winds in Iowa, July 9 to 10, 202170 kt wind · 7 eventsA line of storms that developed over western Nebraska and South Dakota moved into a highly unstable airmass with 2500-3000 J/kg MLCAPE leading to widespread wind damage across eastern Nebraska and western Iowa.
• Damaging Wind in Illinois, July 9, 202152 kt wind · 1 eventA stalled frontal boundary extending from northern Missouri into western Kentucky triggered several clusters of strong to severe thunderstorms across west-central Illinois during the afternoon and evening of July 9th.
• Flash Flooding and Dust Storm in Arizona, July 9 to 10, 2021$271,000 · 56 kt wind · 19 eventsThunderstorms developed along the Mogollon Rim during the early part of the afternoon on the 9th.
• Damaging Winds in Kansas, July 9, 202170 kt wind · 5 eventsA cold front made its way through the CWA form the northwest to southeast by mmidnight and into the early morning hours with damaging winds the main threat with gusts over 60 mph and topping out around 67 mph.
• Damaging Winds in Kansas, July 9 to 10, 202165 kt wind · 13 eventsSeveral counties reported wind damage from a strong line of thunderstorms that occurred during the night of 7/9 into 7/10.
• Damaging Winds in Nebraska, July 10, 2021$22,000 · 70 kt wind · 3 eventsDuring the late afternoon on July 9th, storms developed off the Rockies and moved southeast across Northern Colorado and Southern Wyoming. As the storms moved southeast, they clustered together and produced outflow boundaries for more storms to develop along.
• Hail and Damaging Winds in Kansas, July 10, 20211.75 in hail · 9 eventsOvernight convection brought into northeast Kansas a strong storm complex from southeast Nebraska. Overall, this system produced low end wind damage across far northern Missouri.
• Damaging Winds in Kansas, July 10, 202154 kt wind · 3 eventsThunderstorms bring severe wind gusts to portions of north central Kansas during the early morning hours of July 10. A cluster of severe thunderstorms in central Nebraska evolved into a widespread line of thunderstorms across south central Nebraska between 9-11PM CDT.
• Flash Flood and Damaging Winds in Mississippi, July 10 to 12, 2021$95,000 · 55 kt wind · 3 eventsDecaying mesoscale convective systems affected the ArkLaMiss region during the overnight and morning hours of the 10th through the 12th. These storms brought some heavy rain, which resulted in localized flash flooding to portions of the region as well as some damaging winds.
• Damaging Winds in West Virginia, July 10, 2021$10,000 · 50 kt wind · 2 eventsA warm front lifted north into the region on July 10th with showers and thunderstorms developing along the boundary during the peak of the afternoon. Several trees were blown down in Mingo County due to a strong thunderstorm and its resultant gusty winds.
• Tornadoes and Flash Flood in Illinois, July 10, 2021EF1 · 7 eventsA Mesoscale Convective Vortex (MCV) generated by prior convection across Kansas and Missouri tracked into west-central Illinois during the afternoon of July 10th.
• Damaging Wind in Iowa, July 10, 202152 kt wind · 1 eventA line of storms produced severe criteria wind in Pottawattamie County.
• Flash Flood in Nebraska, July 10, 20211 eventA line of storms produced about 3.5 inches of rainfall in Fremont and led to localized flooding.
• Damaging Wind in Nebraska, July 10, 202158 kt wind · 1 eventRogue severe wind gust in central Nebraska during the afternoon of July 10, 2021. An upper level shortwave disturbance and associated cold front brought a broken line of thunderstorms to portions of central Nebraska during the afternoon hours of July 10.
• Damaging Wind in Ohio, July 10, 2021$1,000 · 1 eventIsolated thunderstorms developed during the afternoon hours in a warm and unstable air mass.
• Hail and Damaging Winds in Kansas, July 10, 20211.75 in hail · 3 eventsLarge hail and strong winds moved across southern KS on the 10th causing isolated damage.
• Damaging Winds in Virginia, July 10, 2021$48,000 · 60 kt wind · 6 eventsWidely scattered thunderstorms developed during the late afternoon and evening of July 10th as a quasi-stationary boundary remains draped across the Virginia and North Carolina state line.
• Damaging Wind in Georgia, July 10, 202160 kt wind · 1 eventScattered to numerous thunderstorms developed in the afternoon hours across much of southeast Georgia. A few of these thunderstorms became strong enough to produce damaging wind gusts.
• Flash Flood and Damaging Winds in Virginia, July 10, 2021$16,000 · 50 kt wind · 3 eventsDeveloping showers and thunderstorms along an approaching warm front arrived in southwest Virginia on the evening of July 10th. One storm in particular strengthened to strong levels over Buchanan County and inflicted downed trees due to gusty winds.
• Damaging Winds in Illinois, July 10, 2021$7,000 · 61 kt wind · 2 eventsScattered showers and storms were moving across portions of southern Illinois during the late afternoon hours. Some of the storms were severe, producing damaging winds.
• Flash Flood and Damaging Wind in North Carolina, July 10, 2021$11,000 · 50 kt wind · 3 eventsA slow moving thunderstorm developed during the evening of July 10th. Surface-based CAPE values ranged from 1500 to 2000 J/Kg, while Precipitable Water values were estimated to be around 1.6 inches.
• Damaging Winds in Oklahoma, July 10, 2021$12,000 · 61 kt wind · 5 eventsStrong to severe thunderstorms developed across southern Kansas during the afternoon of the 10th, ahead of an approaching cold front. The storms moved southeast and across northeastern Oklahoma during the evening. The strongest thunderstorms produced damaging wind gusts.
• Damaging Winds in Kansas, July 10, 202160 kt wind · 5 eventsSevere wind gusts occurred from storms during the late afternoon and early evening hours of 7/10.
• Damaging Winds in Illinois, July 10, 2021$19,000 · 65 kt wind · 4 eventsA few clusters of thunderstorms surged eastward across southern Illinois, producing isolated pockets of wind damage.
• Flash Flood in Tennessee, July 10, 20211 eventA 500 MB low pressure trough over the center of the nation brought southwesterly flow to east Tennessee. This ushered a warm frontal boundary well to the north of the area, resulting in a warm and humid airmass.
• Damaging Wind in Mississippi, July 10, 2021$20,000 · 50 kt wind · 1 eventThunderstorms developed due to surface heating across the Mid-South during the afternoon hours on July 10, 2021. Isolated wind damage occurred across Northeast Mississippi.
• Flash Flooding and Dust Storm in Arizona, July 10, 2021$352,000 · 1 in hail · 19 eventsScattered thunderstorms developed across the Mogollon Rim and International Border during the afternoon and moved west across southeast Arizona through the evening hours.
• Tornado and Damaging Winds in Missouri, July 10, 2021$2.0 million · EF2 · 4 eventsClusters of thunderstorms developed during the late afternoon hours. Some of the largest clusters were associated with sporadic gusty winds in the 40 to 60 mph range. By early evening, a few tornadic circulations were observed as storms intensified.
• Tornado and Hail in Arizona, July 10, 2021EF1 · 2 eventsMonsoon moisture continued to move northward across Arizona with strong to severe thunderstorms developing.
• Flash Flooding and Damaging Winds in Kentucky, July 10 to 11, 2021$202,000 · 56 kt wind · 8 eventsClusters of thunderstorms developed during the late afternoon hours, then moved east into western Kentucky in the evening. Some of the largest clusters were associated with sporadic gusty winds in the 40 to 60 mph range.
• Tornado and Flash Flooding in Oklahoma, July 10 to 11, 2021$60,000 · EF1 · 20 eventsA line of thunderstorms originating across eastern Kansas built southwestward into northern and central Oklahoma during the evening of the 10th, leading to numerous severe wind, hail and flood reports.
• Flash Flood in New Jersey, July 10, 20211 eventIsolated showers and thunderstorms developed late in the day along a weak frontal boundary. One of these storms was able to produce a quick 0.5-1 inch of rain, resulting in isolated flash flooding in Hudson County.
• Damaging Wind in Nevada, July 10, 202152 kt wind · 1 eventStrong outflow winds from a downburst of collapsing showers was measured by a nearby ASOS.
• Damaging Wind in Arkansas, July 10, 2021$2,000 · 52 kt wind · 1 eventStrong to severe thunderstorms developed across southern Kansas during the afternoon of the 10th, ahead of an approaching cold front. The storms moved southeast and across west central Arkansas during the evening. The strongest thunderstorms produced damaging wind gusts.
• Flash Flooding and Damaging Winds in Arizona, July 10 to 15, 2021$74,000 · 73 kt wind · 9 eventsMonsoon moisture slowly seeped into the region under the big dome of high pressure which was causing record-breaking temperatures, fueling isolated to scattered thunderstorms. As the moisture increased, the main thunderstorm impact transitioned from high winds to flash flooding.
• Damaging Winds in Arkansas, July 10, 2021$2,000 · 50 kt wind · 2 eventsDuring the evening of July 10, 2021, an upper-level disturbance pushed into the area from the northwest. As a result, a line of thunderstorms developed and pushed across areas along and north of Interstate 40.
• Flash Flood and Damaging Winds in Tennessee, July 10 to 11, 2021$6,000 · 50 kt wind · 4 eventsDuring the evening of July 10, 2021, an upper-level disturbance pushed into the area from the northwest. As a result, a line of thunderstorms developed and pushed across areas along and north of Interstate 40.
• Damaging Winds in Texas, July 11, 202161 kt wind · 4 eventsA line of thunderstorms originating across eastern Kansas built southwestward into northern and central Oklahoma during the evening of the 10th, leading to numerous severe wind, hail and flood reports.
• Damaging Winds in Texas, July 11, 202162 kt wind · 2 eventsIsolated severe thunderstorms across the Big Country produce wind gusts of 60 to 70 mph and minor tree damage.
• Lightning Strike in Texas, July 11, 2021$5,000 · 1 eventA mesoscale convective system (MCS) developed during the late afternoon and evening hours across Central and Eastern Oklahoma on July 10th, ahead of a weak cold front and associated upper level trough digging through the Central Plains into the Mid Mississippi Valley.
• Flash Flood in Iowa, July 11, 20211 eventA stalled storm system centered near Galesburg Illinois brought several rounds of showers and embedded thunderstorms to eastern Iowa through the day. These showers and thunderstorms were slow moving westward across the area and were efficient rainfall producers.
• Flash Flooding in Illinois, July 11, 20212 eventsA stalled storm system centered near Galesburg Illinois brought several rounds of showers and embedded thunderstorms to northwest Illinois through the day. These showers and thunderstorms were slow moving westward across the area and were efficient rainfall producers.
• Flash Flood and Flood in Virginia, July 11, 2021$103,000 · 55 kt wind · 4 eventsWidely scattered thunderstorms developed during the afternoon and evening of July 11th.
• Hail in New Mexico, July 11, 20211.25 in hail · 1 eventThere was an upper ridge centered over southern Nevada and an upper trough over Missouri. A weak cold front moved into West Texas and Southeast New Mexico. Moisture and instability were across the area. Atmospheric lift was enhanced across the higher terrain and along the front.
• Damaging Wind and Heavy Rain in Texas, July 11, 202156 kt wind · 2 eventsOn the morning of the eleventh, a cold front became nearly stationary across the South Plains into the southern Rolling Plains. This boundary served as a forcing mechanism for thunderstorm development during the early afternoon.
• Flash Flooding and Hail in New Mexico, July 11, 2021$50,000 · 2 in hail · 16 eventsAn area of high pressure remained centered over Nevada, but abundant moisture and moderate instability across New Mexico provided the necessary ingredients for a round of numerous showers and thunderstorms on July 11, 2021.
• Damaging Wind in Pennsylvania, July 11, 2021$10,000 · 50 kt wind · 1 eventA crossing shortwave trough combined with 2000 J/kg of CAPE and sufficient shear to produce a crossing line of showers and thunderstorms on July 11th.
• Hail and Damaging Winds in Montana, July 11, 20211 in hail · 20 eventsA shortwave moving along the Canadian border interacted with moisture and instability over North-central MT for strong to severe thunderstorm development.
• Damaging Wind in Florida, July 11, 2021$5,000 · 50 kt wind · 1 eventAfternoon storms damage structure attached to home near Ellenton.
• Damaging Winds in Alabama, July 11, 2021$12,000 · 52 kt wind · 12 eventsPlaceholder...
• Flash Flood and Damaging Winds in Pennsylvania, July 11, 20211 injured · $103,000 · 96 kt wind · 30 eventsScattered thunderstorms developed in a moderate CAPE, moderate shear environment just south of a warm front that was draped from northwest to southeast across central Pennsylvania during the afternoon of July 11, 2021.
• Flash Flood in Pennsylvania, July 11, 2021$120,000 · 1 eventLow pressure was slowly moving northeast from IN through northern OH during the day of July 11th, 2021, lifting a warm front northward towards northwest PA. Showers and thunderstorms moved northeast across Erie County, PA for much of the daytime hours ahead of this front.
• Hail in Texas, July 11, 20211.5 in hail · 2 eventsThere was an upper ridge centered over southern Nevada and an upper trough over Missouri. A weak cold front moved into West Texas and Southeast New Mexico. Moisture and instability were across the area. Atmospheric lift was enhanced across the higher terrain and along the front.
• Tornado and Hail in Arizona, July 11, 2021$100,000 · EF0 · 3 eventsMoisture increasing from the south triggered severe thunderstorms across northern Arizona.
• Flash Flood and Dust Storm in New Mexico, July 11, 20212 injured · $25,000 · 1.75 in hail · 22 eventsA weak back door front pushed in from the east as a strong upper low moved into the Upper Midwest. Good shear and instability across southern New Mexico allowed numerous storms to become severe with wind gusts over 80 mph and hail up to golf ball size.
• Flash Flooding in Illinois, July 11, 20214 eventsWaves of low pressure tracking along a nearly stationary frontal boundary draped across south-central Illinois triggered numerous thunderstorms during the afternoon and evening of July 11th.
• Flash Flooding and Damaging Winds in Nevada, July 11 to 15, 2021$219,000 · 70 kt wind · 18 eventsMonsoon moisture slowly seeped into the region under the big dome of high pressure which was causing record-breaking temperatures, fueling isolated to scattered thunderstorms. As the moisture increased, the main thunderstorm impact transitioned from high winds to flash flooding.
• Damaging Winds in Maryland, July 11, 2021$7,000 · 55 kt wind · 2 eventsAn isolated thunderstorm produced a few instances of wind damage of portions of western Maryland.
• Flash Flooding in New York, July 11, 2021$650,000 · 11 eventsAn unstable environment in Central New York allowed for thunderstorms, triggered by a passing warm front, to become severe with torrential rainfall. Rainfall totals of 3 to 4 inches, with locally higher amounts, were reported in 2 to 3 hours.
• Hail in Texas, July 11, 20210.88 in hail · 1 eventAn early evening thunderstorm generated some small hail.
• Flash Flood in Vermont, July 11 to 12, 2021$25,000 · 1 eventFlash flooding from thunderstorms resulted in a culvert on Mill Brook near the Connecticut River in Dummerston, VT to be washed away.
• Damaging Winds in Pennsylvania, July 11, 2021$5,000 · 50 kt wind · 3 eventsAn unstable environment in Northeastern Pennsylvania allowed for storms, triggered by a passing warm front, to become severe. These storms had damaging winds, knocking down trees and wires.
• Flash Flood in Tennessee, July 11, 20211 eventA warm and humid air mass remained in place. Diurnal convection produced isolated flash flooding.
• Hail and Damaging Winds in Texas, July 11, 2021$25,000 · 1.25 in hail · 5 eventsA weak back door front was pushing into the Rio Grande Valley as a strong upper low moved through the Upper Midwest. Favorable wind shear and instability lead to a couple severe thunderstorms moving into west El Paso which brought hail and wind damage to the area.
• Flash Flood in Pennsylvania, July 11, 2021$5,000 · 1 eventAn unstable environment in Northeast Pennsylvania allowed for thunderstorms, triggered by a passing warm front, to become severe with torrential rainfall. These storms produced areas of flash flooding in Bradford county.
• Damaging Winds in Pennsylvania, July 11, 202150 kt wind · 2 eventsA mesoscale convective system tracking along a warm front moved through much of Pennsylvania during the late afternoon and evening of July 11. With a warm and moist air mass in place, storms maintained organization into the early overnight hours.
• Flash Flooding in New York, July 11 to 12, 20213 eventsHeavy rainfall occurred during the late evening hours of the 11th to the early morning hours of the 12th. Two to three inches of rain fell over Schoharie County.
• Flash Flood and Damaging Wind in Texas, July 12, 202152 kt wind · 2 eventsIn wake of a Mesoscale Convective System (MCS) that moved through the region during the morning hours of July 11th, the air mass remained stable for much of the day, despite a weak surface frontal system becoming stationary across portions of the I-30 corridor of Northeast Texas…
• Damaging Wind in Louisiana, July 12, 202150 kt wind · 1 eventIn the late morning and afternoon hours on July 12th, a fast moving, disorganized cluster of showers and storms along an eastward surging outflow boundary delivered strong to severe wind gusts across portions of southeastern Louisiana.
• Flash Flooding in Texas, July 12, 20212 eventsHeavy rainfall from thunderstorms resulted in widespread street flooding in Madison County.
• Flash Flood and Damaging Winds in Florida, July 12, 2021$6,000 · 53 kt wind · 4 eventsAn upper level low pressure area with very cold temperatures aloft moved towards South FL today through the day. This along with strong daytime heating and high atmospheric moisture led to rounds of strong to severe showers and thunderstorms areawide.
• Tornado in Illinois, July 12, 2021$12,000 · EF0 · 1 eventWith a deep upper-level low centered over the Great Lakes and a stationary frontal boundary draped across the region, several cold air funnels were observed across central Illinois on July 12th.
• Damaging Wind in Texas, July 12, 202150 kt wind · 1 eventA brief downburst from a strong thunderstorm in Walker County resulted in tree damage.
• Flash Flooding in Pennsylvania, July 12, 20216 eventsThunderstorms brought locally heavy rain to parts of southeastern Pennsylvania on the afternoon of July 12. Rainfall totals up to 6 to 10 inches occurred in Northeast Philadelphia and in far lower Bucks County prompting the issuance of a Flash Flood Emergency.
• Damaging Wind in Alabama, July 12, 202150 kt wind · 1 eventA typical summertime pattern prevailed with scattered afternoon thunderstorms across the tri-state region. There were a few reports of wind damage with the strongest storms.
• Flash Flooding and Flood in Texas, July 12, 20214 eventsThe combination of abundant tropical moisture, moderate instability and a weak upper level disturbance produced thunderstorms with heavy rainfall across the Concho Valley and Heartland. A few of the thunderstorms produced flash flooding.
• Damaging Winds in Maryland, July 12, 2021$11,000 · 55 kt wind · 7 eventsScattered thunderstorms produced several instances of wind damage across northern Maryland, eastern West Virginia and northwestern Virginia.
• Hail and Damaging Winds in New Jersey, July 12, 20211 in hail · 28 eventsA warm front was draped across northern Pennsylvania and far northern New Jersey on July 12. South of the front, a very warm and unstable air mass was present.
• Flash Flooding in New Jersey, July 12, 20215 eventsThunderstorms brought locally heavy rain to parts of southwestern New Jersey on the afternoon of July 12. Rainfall totals up to 5 to 8 inches occurred in far northwestern Burlington County prompting the issuance of a Flash Flood Emergency.
• Flash Flood and Damaging Winds in Pennsylvania, July 12 to 13, 2021$312,000 · 52 kt wind · 7 eventsThunderstorms formed during the afternoon and evening of the 12th in an environment of moderate CAPE and moderate shear southeast of a stationary front.
• Damaging Winds in West Virginia, July 12, 2021$7,000 · 50 kt wind · 2 eventsScattered thunderstorms produced several instances of wind damage across northern Maryland, eastern West Virginia and northwestern Virginia.
• Flash Flooding and Flooding in Illinois, July 12 to 13, 2021$1.5 million · 50 kt wind · 6 eventsScattered thunderstorms moved across portions of central Illinois during the afternoon and evening of July 12th. One storm moved very slowly over eastern La Salle and western Grundy Counties.
• Flash Flood in Missouri, July 12, 20211 eventAn upper level shortwave brought several rounds of showers and storms. Some of the storms dumped up to 4 inches of rain in a short amount of time causing flash flooding.
• Flash Flooding and Damaging Winds in Georgia, July 12 to 15, 2021$58,000 · 55 kt wind · 9 eventsA typical summertime pattern prevailed with scattered afternoon thunderstorms across portions of southwest and south-central Georgia. There were a few reports of wind damage with the strongest storms.
• Hail in Arizona, July 12, 20211.5 in hail · 2 eventsHigh pressure weakened over northern Arizona which allowed more moisture to move over the state from the south. This helped strong thunderstorms to develop over the area.
• Damaging Wind in Virginia, July 12, 2021$1,000 · 50 kt wind · 1 eventScattered thunderstorms produced several instances of wind damage across northern Maryland, eastern West Virginia and northwestern Virginia.
• Damaging Winds in Pennsylvania, July 12, 202155 kt wind · 10 eventsA warm front was draped across northern Pennsylvania and far northern New Jersey on July 12. South of the front, a very warm and unstable air mass was present.
• Flash Flooding in New York, July 12, 2021$50,000 · 4 eventsA frontal boundary, coupled with an extremely warm and humid environment, produced another day of slow moving, torrential downpour producing thunderstorms over Central New York. Approximately, 1 to 3 inches of rain fell in a short amount of time.
• Flash Flooding and Flood in Ohio, July 12, 2021$350,000 · 4 eventsA stationary boundary was situated from west to east across northern OH on July 12th, 2021, and would lift north to Lake Erie by late afternoon.
• Tornadoes and Flash Flooding in Utah, July 12 to 16, 20213 injured · $1.4 million · 1 in hail · 30 eventsAn active monsoon surge brought several back-to-back days of thunderstorms producing heavy rain, damaging wind gusts, and hail across the state.
• Damaging Wind and Lightning Strike in New Jersey, July 12, 2021$11,000 · 52 kt wind · 2 eventsA stationary boundary in a warm and humid air mass triggered a thunderstorm that had evidence of rotation via radar signatures across Northeastern New Jersey, mainly Passaic County.
• Damaging Wind in Georgia, July 12, 2021$8,000 · 50 kt wind · 1 eventA weak short wave moving across the state in the persistent moist southwesterly flow over the region produced an isolated severe thunderstorm over a portion of west central Georgia.
• Damaging Wind in North Carolina, July 12, 2021$10,000 · 1 eventIsolated thunderstorms and storm clusters developed over the North Carolina Piedmont during the evening, producing gusty winds that caused some wind damage in Cabarrus County.
• Flash Flood in Indiana, July 12, 20211 eventScattered thunderstorms formed across northern Indiana during the afternoon and evening hours. Many exhibited weak rotation and some funnel clouds but did not produce severe weather.
• Damaging Wind in Wyoming, July 12, 2021$5,000 · 53 kt wind · 1 eventA high-based thunderstorm produced very strong wind in and around Big Piney. The strong winds blew down limbs from cottonwood trees and caused damage to two mobile homes in Big Piney.
• Damaging Wind in Nevada, July 12, 202155 kt wind · 1 eventSevere outflow winds from a dry thunderstorm were measured at a nearby RAWS site.
• Flash Flooding in New Jersey, July 12, 20212 eventsA warm front across the area during the early morning hours gradually sank southward towards evening, providing a focusing mechanism for the development of showers and thunderstorms across northeast New Jersey.
• Damaging Wind in South Carolina, July 12, 202150 kt wind · 1 eventDaytime heating led to scattered thunderstorms in the afternoon, one of which produced some wind damage.
• Damaging Winds in Delaware, July 12, 202150 kt wind · 2 eventsA warm front was draped across northern Pennsylvania and far northern New Jersey on July 12. South of the front, a very warm and unstable air mass was present.
• Flash Flooding in Pennsylvania, July 12, 2021$320,000 · 10 eventsA frontal boundary, coupled with an extremely warm and humid environment, produced another day of slow moving, torrential downpour producing thunderstorms over Northeast Pennsylvania. Stripes of 1 to 3 inch rainfall occurred over several parts of the area.
• Hail and Damaging Wind in Georgia, July 12, 2021$40 · 0.25 in hail · 2 eventsDaytime heating led to scattered thunderstorms in the afternoon. Small hail and strong winds were reported.

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.