Colorado Hail Storm

Losses, 2024 dollars

$2.8 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.

• Hail and Damaging Wind in Nebraska, June 16, 20181 in hail · 2 eventsThunderstorms produced large hail and strong winds across portions of Banner and Box Butte counties.
• Damaging Winds in Ohio, June 16 to 17, 2018$3,000 · 52 kt wind · 6 eventsHot and humid conditions were prevalent under an upper level ridge. A few thunderstorms formed during the afternoon hours of both June 16th and June 17th. Sufficient instability and dry air aloft allowed for isolated downbursts, creating a few instances of wind damage.
• Damaging Wind in South Dakota, June 16, 201861 kt wind · 1 eventStorms fired near a nearly stationary boundary across central to northeast South Dakota during the evening, brushing across areas northwest of Huron. An effective CAPE around 1500 J/kg and 0-3km shear of 35-40 knots showed a preference to supercell structure.
• Flash Flooding and Damaging Winds in Minnesota, June 16 to 17, 2018$315,000 · 50 kt wind · 9 eventsDuring the evening of June 16th, a weak frontal boundary stretched north-northeast from Watertown in South Dakota, up through Wadena and International Falls in Minnesota.
• Damaging Winds in Minnesota, June 17, 2018$150,000 · 65 kt wind · 3 eventsA line of thunderstorms that developed across west central Minnesota Sunday morning, June 17th, moved quickly northeast across central Minnesota by the early afternoon. The line of storms became severe east of Long Prairie and produced a concentrated area of intense damage.
• Flash Flooding and Hail in Minnesota, June 17 to 18, 20181.25 in hail · 6 eventsThe third and final day of a three day severe weather event across the Northland. A stalled out frontal system finally made a push across the area leading to another round of severe storms and heavy rainfall over areas that had seen dramatic flash flooding the previous night.
• Damaging Wind in North Carolina, June 17, 201850 kt wind · 1 eventIsolated to widely scattered thunderstorms developed across the North Carolina mountains during the afternoon. One of the storms produced brief damaging wind gusts in Madison County.
• Hail and Damaging Winds in Tennessee, June 17, 2018$25,000 · 1 in hail · 14 eventsWidely scattered strong to severe thunderstorms developed across Middle Tennessee during the afternoon and evening hours on June 17. Several reports of wind damage and large hail were received.
• Flash Flooding and Hail in Idaho, June 17, 20181.25 in hail · 4 eventsFlooding with heavy rain and large hail was reported in Fremont, Madison, and Bear Lake Counties.
• Hail and Damaging Winds in Wisconsin, June 17, 20181 in hail · 5 eventsThe third and final day of a three day severe weather event across the Northland. A stalled out frontal system finally made a push across the area leading to another round of severe storms and heavy rainfall over areas that had seen dramatic flash flooding the previous night.
• Tornado and Hail in Colorado, June 17, 2018EF0 · 7 eventsSevere thunderstorms produced large hail and damaging winds over Arapahoe, Sedgwick, and Washington counties. In Sedgwick County, storm damage included an irrigation pivot that overturned at county roads 21 through 34 between Ovid and Sedgwick.
• Hail and Damaging Winds in Ohio, June 17, 2018$6,000 · 50 kt wind · 4 eventsIn an unstable atmosphere, showers and thunderstorms developed during the heat of the afternoon on the 17th. A couple of these storms were strong enough to produce hail and isolated wind damage.
• Tornadoes and Hail in Nebraska, June 17, 2018$206,000 · EF1 · 18 eventsIsolated thunderstorms developed over far northeastern Colorado mid afternoon on June 17th and tracked into Deuel where they became severe. Storms moved east northeast into the Sandhills and remained severe through the mid evening hours.
• Damaging Winds in North Carolina, June 17, 2018$12,000 · 50 kt wind · 2 eventsScattered convection developed in a moderately unstable air mass with a weak surface trough in place over central North Carolina.
• Damaging Winds in South Carolina, June 17, 2018$5,000 · 50 kt wind · 2 eventsIsolated thunderstorms developed near the Blue Ridge during early and mid afternoon and moved slowly south into the foothills, where a couple of storms produced brief damaging wind gusts.
• Damaging Wind in Iowa, June 17, 201861 kt wind · 1 eventAn upper level weather system helped develop a line of thunderstorms over eastern Nebraska that moved northeast into western Pottawattamie and Harrison Counties during the afternoon of the 17th.
• Hail and Damaging Winds in Wisconsin, June 17, 201856 kt wind · 7 eventsClusters of thunderstorms developed during the afternoon across west central Wisconsin. These were ahead of a cold front moving southeast over Minnesota. Several of these storms produced damaging downburst winds north of Eau Claire, in the town of Lake Hallie.
• Damaging Winds in North Carolina, June 17, 201850 kt wind · 2 eventsAn isolated severe thunderstorm produced wind damage.
• Damaging Wind in Florida, June 17, 201850 kt wind · 1 eventA surface trough was moving south near the east Florida coast while a surface high pressure was situated near the Carolina coastline. The main steering flow winds were out of the north-northwest, although low-level winds were out of the east-southeast.
• Damaging Wind and Strong Wind in Louisiana, June 17 to 19, 20183 injured · 50 kt wind · 2 eventsA tropical wave moved through the region and interacted with an upper low. This produced a few days of stormy weather.
• Damaging Winds in Iowa, June 17, 201855 kt wind · 3 eventsA fairly unremarkable day setup-wise resulted in a few strong storms during the evening hours that produced a small handful of damaging winds and wind gust reports. A frontal boundary was positioned well west/northwest of the state, leaving Iowa firmly within the warm sector.
• Damaging Wind in Florida, June 17, 201850 kt wind · 1 eventA surface front was draped over SE GA with a dominant east coast sea breeze drifting inland over a moist and unstable airmass. A severe storm impacted Marion county.
• Damaging Winds in Wisconsin, June 17, 2018$16,000 · 61 kt wind · 11 eventsAs a cold front moved slowly into western Wisconsin, numerous thunderstorms developed along the front during the late afternoon and evening of June 17th. Some of the late afternoon thunderstorms spawned funnel clouds that were visible near Willard and Loyal (Clark Counties).
• Flash Flooding and Flooding in Wisconsin, June 17 to 23, 2018$8,000 · 11 eventsAfter repeated rounds of thunderstorms with heavy rain, some flash flooding occurred across parts of Buffalo, Trempealeau and Clark Counties.
• Flash Flood and Damaging Winds in West Virginia, June 17, 2018$11,000 · 50 kt wind · 7 eventsIn an unstable atmosphere, showers and thunderstorms developed during the heat of the afternoon on the 17th. One of these storms was strong enough to produce hail and wind damage, along with flooding rain.
• Hail in Tennessee, June 17, 20181 in hail · 1 eventAn isolated thunderstorm formed with the help of orographic lift on the Cumberland Plateau. The storm produced dime to quarter sized hail.
• Damaging Winds in Wisconsin, June 17, 2018$5,000 · 61 kt wind · 12 eventsThunderstorms developed across the area as a cold front encountered a very warm and unstable air mass. Some of the storms produced large hail and damaging winds.
• Damaging Wind in Florida, June 17, 2018$1,000 · 1 eventThunderstorms developed along sea breeze boundaries and pushed west into the Nature Coast during the early evening. One of these storms produced damaging wind gusts in Citrus County.
• Hail and Damaging Wind in Nebraska, June 17, 20181.75 in hail · 2 eventsA stationary front extending from the the Nebraska Panhandle to west central Minnesota was the focus for severe weather in Knox and Cedar Counties on the evening of the 17th.
• Damaging Wind in Virginia, June 17, 2018$12,000 · 55 kt wind · 1 eventA thunderstorm strengthened to severe levels over the city of Danville during the late evening of June 17th. This storm brought down a few trees and damaged a small communications tower.
• Flash Flood and Flood in Minnesota, June 18 to 22, 2018$10,000 · 2 eventsA rock slide occurred just south of Winona (Winona County) after thunderstorms with heavy rain moved across the area during the early morning hours of June 18th. A car was damaged by the rock slide.
• Flash Flood and Hail in Iowa, June 18 to 19, 2018$10,000 · 1.25 in hail · 26 eventsA meandering boundary found itself draped across Iowa on the 18th and into the 19th of June, acting as a continued focusing mechanism for showers and thunderstorms.
• Hail and Damaging Winds in Utah, June 18, 20181.25 in hail · 4 eventsScattered showers and thunderstorms developed over northern Utah on June 18, and large hail and strong winds were observed in association with some of these storms.
• Damaging Winds in Pennsylvania, June 18, 2018$27,000 · 52 kt wind · 7 eventsA cold front dropped southward into a hot and humid airmass over central Pennsylvania, generating scattered showers and thunderstorms in a high CAPE, low shear environment.
• Flash Flood and Hail in Colorado, June 18 to 19, 2018$10,000 · 3 in hail · 62 eventsThe storms that moved across northern Washington County caused severe agricultural damage. Wheat fields were significantly damaged and the young corn was stripped of all its leaves.
• Damaging Winds and Lightning Strikes in Vermont, June 18, 2018$161,000 · 70 kt wind · 8 eventsA significant cold front and upper level shortwave moved across a moderate to highly unstable airmass across Vermont during the afternoon hours of June 18th.
• Damaging Wind in New York, June 18, 2018$2,000 · 50 kt wind · 1 eventOur region was located at the top of an upper level ridge, with a shortwave passing to the north driving a cold front across the region. Early on, this looked like a flash flood event with precipitable water values forecast to exceed 2 inches.
• Tornadoes and Damaging Winds in New Hampshire, June 18, 2018EF0 · 18 eventsStrong convection developed on a pre-frontal trough ahead of an approaching cold front on the afternoon of June 18th. A deep layer of moderate to strong shear accompanied this boundary as it pushed in from the west.
• Damaging Winds in Pennsylvania, June 18, 2018$8,000 · 50 kt wind · 12 eventsHeat and humidity was in place across western Pennsylvania underneath a strong ridge, which allowed instability to build during the afternoon of June 18th.
• Flash Flooding and Damaging Winds in Arkansas, June 18 to 22, 2018$22,000 · 50 kt wind · 5 eventsIn a hot and humid summertime air mass, scattered thunderstorms developed by the afternoon hours on the 18th and the 22nd. A few severe thunderstorms produced wind gusts which blew down trees and damaged property.
• Damaging Winds in Pennsylvania, June 18, 2018$90,000 · 50 kt wind · 9 eventsA cold front dropped south into New York State the afternoon and evening of the 18th. This front eventually moved into northern Pennsylvania during the overnight hours from the 18th to the 19th.
• Flash Flood and Damaging Winds in New York, June 18, 2018$50,000 · 50 kt wind · 4 eventsA significant cold front and upper level shortwave moved across a moderately unstable airmass across New York during the afternoon and evening hours of June 18th. A few small lines of thunderstorms moved across the state causing some thunderstorm wind damage.
• Damaging Winds and Lightning Strikes in Wisconsin, June 18, 2018$43,000 · 50 kt wind · 7 eventsA slow moving cold front brought rounds of strong to severe thunderstorms to southeast Wisconsin. Damaging wind gusts downed trees and power lines. Heavy rain resulted in some street flooding.
• Damaging Winds in North Carolina, June 18, 2018$11,000 · 55 kt wind · 4 eventsA trough combined with high instability triggered strong storms.
• Damaging Winds in Virginia, June 18, 201850 kt wind · 4 eventsA weak trough caused thunderstorms to develop in a hot and humid air mass. The heat and humidity led to some storms becoming severe.
• Damaging Winds in Maryland, June 18, 201852 kt wind · 6 eventsA weak trough caused thunderstorms to develop in a hot and humid air mass. The heat and humidity led to some storms becoming severe.
• Damaging Winds in North Carolina, June 18, 2018$5,000 · 50 kt wind · 4 eventsInstability combined with a weak upper level disturbance triggered a few thunderstorms across the northern Piedmont of North Carolina.
• Damaging Winds in Maine, June 18, 201850 kt wind · 8 eventsStrong convection developed on a pre-frontal trough ahead of an approaching cold front on the afternoon of June 18th. A deep layer of moderate to strong shear accompanied this boundary as it pushed in from the west.
• Flash Flood and Damaging Winds in Kansas, June 18, 201870 kt wind · 11 eventsA cluster of thunderstorms pushed into portions of northeast Kansas during the mid-afternoon hours. Several damaging wind reports were noted.
• Damaging Wind in South Carolina, June 18, 201850 kt wind · 1 eventA trough combined with high instability triggered strong storms.
• Damaging Winds in New York, June 18, 2018$75,000 · 50 kt wind · 8 eventsA cold front dropped south into New York State the afternoon and evening of the 18th. This front eventually moved into northern Pennsylvania during the overnight hours from the 18th to the 19th.
• Tornadoes and Damaging Winds in Nebraska, June 18, 2018EF0 · 10 eventsA weak upper-level disturbance advanced from the central High Plains into mid Missouri Valley, supporting the development of a surface low over central Nebraska during the afternoon.
• Tornado and Flood in Iowa, June 18, 2018EF0 · 3 eventsA weak upper-level disturbance advanced from the central High Plains into mid Missouri Valley, supporting the development of a surface low over central Nebraska during the afternoon.
• Damaging Wind in Texas, June 18, 201851 kt wind · 1 eventTropical moisture associated with the remnants of eastern Pacific tropical system Bud moved over top of the region of the 18th. Hot surface temperatures in the Rolling Plains allowed instability to build to create isolated to widely scattered thunderstorms.
• Damaging Winds in New York, June 18, 2018$10,000 · 61 kt wind · 4 eventsA prefrontal trough ahead of a cold front approaching from the west brought severe weather to Southeastern New York.
• Damaging Wind in Ohio, June 18, 201850 kt wind · 1 eventSouthward sagging stationary frontal zone augmented with outflow particularly from intense West to East cluster of intense storms that developed mid afternoon across southern WI eastward through southwestern Lower Michigan.
• Damaging Winds in Kansas, June 18 to 19, 201863 kt wind · 8 eventsA few storms moved across central Kansas producing a few severe events on the 18th and 19th.
• Damaging Winds in Pennsylvania, June 18, 201850 kt wind · 3 eventsSevere thunderstorms caused wind damage across portions of eastern Pennsylvania.
• Damaging Winds in New York, June 18, 2018$29,000 · 50 kt wind · 10 eventsAfter storms went through the North Country earlier in the day, a second, and more significant round, came through the Southern Tier closer to the cold front with a bit more dynamics aloft.
• Hail in Wyoming, June 18, 20180.88 in hail · 3 eventsStrong thunderstorms passed over Platte and Goshen Counties in southeastern Wyoming producing reported nickel size hail.
• Damaging Wind in Connecticut, June 18, 201850 kt wind · 1 eventA hot and humid air mass was in place across the region. This provided an unstable environment for strong to severe thunderstorms to form ahead of a cold front passage during the afternoon and evening hours of June 18th.
• Damaging Winds in New Jersey, June 18, 20181 death · 1 injured · 50 kt wind · 3 eventsSevere thunderstorms caused wind damage across portions of New Jersey.
• Flash Flooding in Texas, June 18 to 19, 2018$605,000 · 3 eventsAn inverted trough moved into the region and interacted with an upper level low. The first day of heavy rain in Southeast Texas produced 4 to 8 inches and caused isolated flooding.
• Damaging Winds in Massachusetts, June 18, 201850 kt wind · 3 eventsA hot and humid air mass was in place across the region. This also provided an unstable environment for strong to severe thunderstorms to form ahead of a cold front passage during the afternoon and evening hours of June 18th.
• Flash Flood in Illinois, June 18, 2018$500,000 · 1 eventVery heavy rain caused flash flooding in northwest Illinois including in Rockford, IL.
• Damaging Winds in Indiana, June 18, 201861 kt wind · 5 eventsSouthward sagging stationary frontal zone augmented with outflow particularly from intense West to East cluster of intense storms that developed mid afternoon across southern WI eastward through southwestern Lower Michigan.
• Flash Flood in Illinois, June 18, 20181 eventThunderstorms repeatedly moved over portions of northwest into north central Illinois the night of June 18th. Rainfall of 4 to 7 inches brought flash flooding to locations along the Highway 20 corridor.
• Flash Flooding and Flooding in Texas, June 18 to 20, 2018$400,000 · 30 eventsA tropical wave moved into South Texas on June 18th. A series of upper level disturbances interacted with this wave throughout its life cycle.
• Flash Flooding and Flood in Nebraska, June 19, 201864 kt wind · 5 eventsAn intense weather system moved very slowly through the mid Missouri Valley, contributing to the development of widespread thunderstorms that produced heavy rainfall during the early-morning hours.
• Flash Flooding and Flood in Texas, June 19 to 22, 2018$116 million · 11 eventsA broad tropical wave originating in the western Caribbean Sea moved across the Yucatan peninsula on June 15th and 16th, 2018. The slow moving but persistent system approached the Texas coast on Sunday, June 17th before finally arriving on June 18th.
• Damaging Wind in Virginia, June 19, 201850 kt wind · 1 eventA weak trough caused thunderstorms to develop in a hot and humid air mass. The heat and humidity led to an isolated thunderstorm becoming severe.
• Damaging Winds in District of Columbia, June 19, 201850 kt wind · 2 eventsA weak trough caused thunderstorms to develop in a hot and humid air mass. The heat and humidity led to a couple storms becoming severe.
• Tornadoes and Hail in Wyoming, June 19, 2018EF0 · 8 eventsSevere thunderstorms produced large hail and a confirmed tornado across parts of southeastern Wyoming.
• Flash Flood in Texas, June 19, 20181 eventFlash flooding lead to a road closure.
• Tornadoes and Hail in Colorado, June 19, 2018$276 million · EF0 · 67 eventsVery large hail, up to 3 inches in diameter, pummeled portions of the Front Range Urban Corridor and extended across the northeast plains of Colorado. Reports of collapsed roofs due to hail were reported, with major hail damage across northern portions of the Denver metro area.
• Damaging Winds in Illinois, June 19, 201865 kt wind · 7 eventsA line of thunderstorms with damaging winds move through portions of northwest Illinois the afternoon of June 19th. Most of the wind damage occurred along and south of Interstate 80 in Illinois, where severe reports of 60 to 70 mph winds were received.
• Damaging Winds in Indiana, June 19, 201855 kt wind · 3 eventsFrontal boundary remained stalled across the region with a moderately unstable atmosphere in place to allow for development of thunderstorms. A few of the storms produced locally damaging winds.
• Tornado and Flash Flood in Nebraska, June 19 to 20, 2018$1.8 million · EF0 · 26 eventsThis was an active Tuesday afternoon and evening of thunderstorms across much of South Central Nebraska, although all verified severe weather concentrated within counties south of Interstate 80.
• Damaging Wind and Heavy Rain in Kansas, June 19 to 20, 201852 kt wind · 4 eventsAlthough the majority of severe weather within the region concentrated barely to the south, east and especially north of this six-county North Central Kansas area, it was still an active Tuesday afternoon and evening of convection for the local area, featuring one…
• Flash Flooding and Hail in Kansas, June 19 to 20, 20182 in hail · 61 eventsThunderstorms focused primarily along a warm front across the Interstate 70 corridor as a short wave trough ejected across the plains. Precipitable water values were very high, in the 1.5 to 1.75 inch range.
• Damaging Winds and Lightning Strike in Illinois, June 19, 2018$36,000 · 52 kt wind · 9 eventsA stationary frontal boundary draped along the I-80 corridor triggered scattered strong to severe thunderstorms across central Illinois during the afternoon and early evening of June 19th.
• Damaging Winds in South Carolina, June 19, 201850 kt wind · 2 eventsIsolated thunderstorms developed over the South Carolina Blue Ridge during the afternoon and moved south into the foothills. A couple of storms produced brief severe weather in the form of damaging wind gusts.
• Flash Flood and Hail in West Virginia, June 19, 2018$21,000 · 0.88 in hail · 4 eventsAs a front drifted south across the central Appalachians on the 19th, showers and storms developed in the afternoon heat. Repetitive heavy rain caused flash flooding in some areas. Isolated tree damage was also recorded.
• Hail and Damaging Winds in Kansas, June 19, 2018$38,000 · 3.25 in hail · 28 eventsDuring the afternoon and through the evening two groups of thunderstorms progressed across Northwest Kansas. One group crossed into Kansas from Colorado behind a cold front, while the second group moved north across the forecast area east of the front, expanding in coverage.
• Damaging Winds in Illinois, June 19, 201850 kt wind · 2 eventsStrong to severe thunderstorms moved across portions of central Illinois during the afternoon of June 19th.
• Hail in Colorado, June 19, 20183 in hail · 9 eventsSevere thunderstorms produced hail up to the size of tea cups in El Paso county, while a severe storm produced hail up to the size of quarters in Baca county.
• Hail in Montana, June 19, 20181 in hail · 1 eventAn isolated thunderstorm produced quarter size hail near Hysham.
• Hail and Damaging Winds in Colorado, June 19, 2018$47,000 · 2.75 in hail · 11 eventsA line of thunderstorms moved east into East Central Colorado during the latter half of the afternoon. The largest hail reported occurred at Abarr. The highest wind gust reported was 67 MPH at the Burlington airport.
• Hail in Nebraska, June 19, 20182.5 in hail · 3 eventsSevere thunderstorms moved into the Nebraska Panhandle after initiation over southeastern Wyoming producing large hail.
• Flash Flooding and Damaging Winds in Kansas, June 19, 201852 kt wind · 6 eventsA complex of thunderstorms pushed southeast across the CWA producing numerous damaging wind reports.
• Tornado in Colorado, June 19, 2018EF0 · 1 eventA brief land spout spun up four miles south of La Junta, Colorado on June 19th, 2018 at 4:45PM MDT. The delayed report came from a resident of La Junta, who sent the images to a local broadcast meteorologist. There was a Tornado Watch in place over Otero County, watch #191.
• Damaging Wind in Missouri, June 19, 201856 kt wind · 1 eventScattered pulse type storms developed across the forecast area. Some of the storms produced damaging winds and flash flooding.
• Damaging Winds in Nebraska, June 19, 2018$2,000 · 70 kt wind · 3 eventsThe severe weather from Colorado spread north into Nebraska as the storms themselves moved eastward. A peak gust of 71 MPH was reported at the McCook airport. A large tree in Indianola was blown down from this same line of thunderstorm winds.
• Hail and Damaging Wind in Oklahoma, June 19, 20181.75 in hail · 4 eventsAn upper level disturbance and moderate instability, led a few severe storms across the Oklahoma Panhandle.
• Damaging Wind in Nebraska, June 19, 201852 kt wind · 1 eventIsolated thunderstorms developed along a stalled out frontal boundary in southwestern Nebraska during the late afternoon of June 19th. Storms became severe over southern Frontier county with wind gusts up to 60 MPH.
• Flash Flood in Illinois, June 19 to 20, 20181 eventScattered pulse type storms developed across the forecast area. Some of the storms produced damaging winds and flash flooding.
• Tornadoes and Flash Flooding in Iowa, June 20 to 21, 2018$1.4 million · EF0 · 32 eventsWithout even looking at supporting variables, the setup for impactful weather could be gleaned from the general setup. A weak surface pressure system was slowly working its way across Iowa, situating its relevant boundaries primarily across southwest and southern Iowa.
• Damaging Wind in Texas, June 20, 201853 kt wind · 1 eventA mesoscale convective system (MCS) tracked across the Texas Panhandle during the early morning hours of the 20th.
• Damaging Wind in South Carolina, June 20, 2018$1,000 · 55 kt wind · 1 eventStrong storms formed over Dillon county.
• Hail and Damaging Wind in North Carolina, June 20, 201850 kt wind · 2 eventsIsolated to widely scattered thunderstorms developed during the afternoon throughout western North Carolina. At least one brief severe storm produced damaging winds across the Piedmont.
• Hail and Damaging Wind in South Carolina, June 20, 20181 in hail · 2 eventsIsolated thunderstorms developed over the South Carolina Blue Ridge during the afternoon and moved southeast. One storm produced brief damaging winds and large hail across northern Greenville County.
• Damaging Winds in Virginia, June 20, 201850 kt wind · 5 eventsA cold front passed through the area. Hot and humid conditions ahead of the front led to some severe storms.
• Hail and Damaging Winds in Florida, June 20, 2018$3,000 · 1 in hail · 6 eventsA surface trough axis was over southern GA and extended into north FL into the afternoon which served as a focus for convective development over a moist and unstable airmass.
• Tornado and Flash Flood in Iowa, June 20, 2018EF0 · 8 eventsA line of slow moving severe thunderstorms with damaging winds, large hail, and even one tornado, moved east across Iowa into Illinois the afternoon and evening of June 20th. These storms brought significant flash flooding to the the Quad Cities.
• Damaging Winds in South Carolina, June 20, 2018$200 · 70 kt wind · 3 eventsStrong daytime heating and a surface trough led to scattered thunderstorms during the afternoon and evening, an isolated storm over the Central Midlands was severe.
• Flash Flooding and Heavy Rain in Pennsylvania, June 20 to 21, 20181 injured · $13 million · 19 eventsHeavy rain with little, if any, lightning moved along a stationary front in a tropical environment. Moisture was plentiful, with precipitable water values of over 2 inches.
• Damaging Winds in Ohio, June 20, 2018$4,000 · 50 kt wind · 2 eventsThunderstorms developed near a warm front that was across the region.
• Damaging Wind in Missouri, June 20, 201856 kt wind · 1 eventA cold front moved through the region triggering showers and thunderstorms. One of the storms produced damaging winds in Shelby County, Missouri.
• Hail in Georgia, June 20, 20180.75 in hail · 1 eventA surface trough axis was over southern GA and extended into north FL into the afternoon which served as a focus for convective development over a moist and unstable airmass.
• Flash Flooding in Pennsylvania, June 20, 20186 eventsBrief intense rainfall brought flash flooding to portions of Somerset and Bedford Counties on the afternoon of June 20th.
• Damaging Winds and Lightning Strikes in North Carolina, June 20, 2018$186,000 · 50 kt wind · 10 eventsIsolated pulse severe storms developed near the Piedmont trough at mid-afternoon. These storms formed into clusters as they moved east-southeast. The strongest and isolated severe storms affected Moore, Lee, Harnett, Johnston, Wilson, Franklin, Nash, and Edgecombe Counties.
• Damaging Winds in West Virginia, June 20, 201850 kt wind · 4 eventsA cold front passed through the area. Hot and humid conditions ahead of the front led to some severe storms.
• Damaging Wind in Ohio, June 20, 2018$1,000 · 50 kt wind · 1 eventThunderstorms along a front led to isolated tree damage on the 20th.
• Damaging Winds in Virginia, June 20, 2018$4,000 · 50 kt wind · 3 eventsScattered severe thunderstorms along a frontal boundary produced damaging winds across portions of central and south central Virginia.
• Damaging Winds in Virginia, June 20, 2018$19,000 · 50 kt wind · 4 eventsStrong surface heating overcame westerly flow off the Blue Ridge to support a few brief severe thunderstorms across the Piedmont of south-central Virginia.
• Damaging Winds in South Carolina, June 20, 201870 kt wind · 5 eventsA trough of low pressure encountered an unstable airmass over Southeast South Carolina, which led to severe thunderstorms during late afternoon hours.
• Flash Flood and Damaging Winds in Illinois, June 20 to 21, 2018$55,000 · 52 kt wind · 3 eventsScattered thunderstorms developed in a very warm and humid airmass well ahead of an approaching cold front across Iowa and Missouri during the late afternoon and early evening of June 20th.
• Damaging Winds in Florida, June 20, 2018$9,000 · 50 kt wind · 3 eventsScattered to numerous showers and thunderstorms occurred across the area. As is typical with summer storms in this part of the country, some of the storms were marginally severe with impacts to trees and power lines.
• Flash Flood and Hail in Oregon, June 20 to 21, 2018$11,000 · 0.9 in hail · 4 eventsAn upper-level trough moved across the area from the southwest, generating strong thunderstorms which produced locally heavy rainfall, lightning, hail, and gusty winds.
• Damaging Winds in North Carolina, June 20, 201850 kt wind · 3 eventsThunderstorms developed across Eastern North Carolina during the evening hours. Several storms became severe and produced damaging winds.
• Damaging Wind in Ohio, June 20, 2018$15,000 · 65 kt wind · 1 eventThunderstorms were able to form along a stationary front in a tropical environment. Moisture was plentiful, with precipitable water values of over 2 inches. One storm in Belmont County was able to generate severe winds, ripping a roof off of a barn along Highway 250.
• Hail and Damaging Winds in Kansas, June 20, 20181 in hail · 13 eventsOne supercell thunderstorm traversed the CWA, producing a narrow swath of damaging wind reports.
• Damaging Wind in Oklahoma, June 20, 2018$5,000 · 52 kt wind · 1 eventA few storms formed on a cold front moving southeast through south central Oklahoma on the evening of the 20th.

Every billion-dollar disasterEvery storm of 2018Tornadoes in 2018

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.