Mountain West Severe Weather

Losses, 2024 dollars

$1.1 billion

Losses at the time

$851 million

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 and Hail in Colorado, July 24, 20181 death · $500,000 · 1.5 in hail · 18 eventsThunderstorms produced very heavy rainfall, 1 to 2 inches in less than 30 minutes. In Englewood, the floodwaters quickly inundated a basement apartment and trapped a woman inside. She was found unresponsive in the apartment and died several hours later.
• Damaging Wind in Texas, July 24, 201850 kt wind · 1 eventA weak cold front moved through South Central Texas generating isolated thunderstorms. One of these storms produced a severe wind gust.
• Damaging Wind in Texas, July 24, 2018$5,000 · 50 kt wind · 1 eventSevere thunderstorms produced wind damage in the city of Cotulla.
• Hail in Nebraska, July 24, 20181 in hail · 1 eventA strong thunderstorm moved across Scotts Bluff County producing one inch hail over the city of Scottsbluff.
• Flash Flood in Colorado, July 24, 20181 eventA second round of convection over the Spring Burn Scar produced heavy rain over the Pass Creek, South Oak Creek, and Yellowstone Creek just north of Red Wing, Colorado.
• Flash Flood and Flood in Colorado, July 24, 20182 eventsThunderstorm development and precipitation over the Spring Burn Scar caused flash flooding over local roads. One of the roads that was flooded was relatively far away from the burn scar, meaning the downstream water and debris transport from the burn scar was quiet impressive.
• Lightning Strike in Florida, July 24, 2018$10,000 · 1 eventScattered thunderstorms moved onshore from the eastern Gulf of Mexico. A lightning strike from one of these storms damaged a home in Indian Rocks Beach.
• Hail in South Dakota, July 24, 20181.5 in hail · 1 eventA severe thunderstorm clipped northern Tripp County, producing large hail north of Hamill.
• Damaging Wind in South Dakota, July 24, 201852 kt wind · 1 eventA severe thunderstorm produced 60 mph wind gusts in Wasta.
• Hail in North Dakota, July 24, 20180.75 in hail · 2 eventsIsolated thunderstorms developed in the afternoon and evening hours ahead of an approaching short-wave trough. Penny-size hail was reported with a few of these storms.
• Damaging Wind in Pennsylvania, July 25, 2018$40,000 · 61 kt wind · 1 eventA severe thunderstorm developed in a very moist airmass and produced a microburst in Lycoming County that was determined by a NWS survey team to have produced winds estimated at 70 to 80 mph east of Muncy during the early morning hours of July 25, 2018.
• Flash Flooding in Pennsylvania, July 25, 2018$350,000 · 11 eventsA north-south oriented stationary front extended along the spine of the Appalachian mountains through Pennsylvania and into the southern counties of New York state. A stronger cold front was pushing in from the Great Lakes.
• Flash Flooding in New York, July 25 to 26, 2018$255,000 · 6 eventsA north-south oriented stationary front extended along the spine of the Appalachian mountains through Pennsylvania and into the southern counties of New York state. A stronger cold front was pushing in from the Great Lakes.
• Hail and Damaging Winds in Nebraska, July 25 to 29, 20183 in hail · 36 eventsPersistent northwest flow aloft and several disturbances rounded out the month of July. This combination brought several days of severe weather to the region.
• Damaging Wind in Puerto Rico, July 25, 2018$500 · 1 eventLocal and diurnal effects resulted in the development of showers and thunderstorms across the northwest quadrant of PR during the afternoon hours.
• Damaging Wind in North Carolina, July 25, 2018$2,000 · 50 kt wind · 1 eventThe area was within a region of moist and unstable air. Numerous heavy rain producing showers and storms developed across the area. One of these storms became severe and damaging winds that downed three trees in Yadkin County.
• Tornado in Florida, July 25, 2018EF0 · 1 eventA brief tornado touchdown occurred near Flagler Beach, before it moved offshore as a waterspout and dissipated. The airmass was moist, moderately unstable with lingering outflow boundaries and sea breezes in place to support convective growth and low level spin.
• Flash Flood and Debris Flow in Colorado, July 25, 2018$20,000 · 3 eventsA shortwave trough pushed through the northern Rockies and brought an increase in moisture and the coverage of afternoon showers and thunderstorms to southwest Colorado. Storms produced heavy rain and debris flow in La Plata County over the 416 fire burn scar.
• Hail and Damaging Winds in New Mexico, July 25, 2018$5,000 · 1 in hail · 5 eventsA moist back door frontal boundary shifted southwest across eastern New Mexico on the 25th and set the stage for numerous showers and thunderstorms along the east slopes of the Sangre de Cristo Mountains.
• Hail in Minnesota, July 25, 2018$150,000 · 2.75 in hail · 7 eventsThunderstorms developed during the afternoon of Wednesday, July 25th, across southern, and east central Minnesota.
• Hail in Nebraska, July 25, 20180.88 in hail · 1 eventOne storm produced low-end severe hail northwest of Cambridge on this Wednesday, with a funnel clouds reported over northern Nance county. A small number of isolated thunderstorms developed over parts of south central Nebraska early in the afternoon.
• Damaging Winds in Idaho, July 25, 2018$6,000 · 60 kt wind · 13 eventsSever winds affected Idaho Falls.
• Hail and Damaging Wind in Minnesota, July 25, 20181 in hail · 4 eventsAn isolated thunderstorm developed along a frontal boundary during the late afternoon in an environment with around 2000 J/kg MLCAPE and deep-layer shear of 40-50 knots. Rotating storms developed with hail, with strong winds also supported by around 1000 J/kg DCAPE.
• Hail in Wyoming, July 25, 20180.88 in hail · 2 eventsA pair of thunderstorms moved across central Fremont County and produced hail in different locations. Off duty National Weather Service employees reported up to nickel size hail around Riverton.
• Flash Flood in New Jersey, July 25, 20181 eventMoist southerly flow ahead of an approaching cold front helped produce afternoon showers and thunderstorms across the region. With precipitable water values at or above 2 inches, these showers and storms produced isolated flash flooding across parts of Passaic County, NJ.
• Hail and Damaging Winds in Iowa, July 25, 2018$8,000 · 1 in hail · 13 eventsA fairly traditional setup for severe weather was in place over the state, a nice departure from events to this point in the season, with a cold front situated to the northwest moving towards and into the area.
• Flash Flooding and Hail in Wyoming, July 25, 20181.5 in hail · 8 eventsSevere thunderstorms moved across southeastern Wyoming producing large hail, strong winds, and localized flash flooding.
• Hail and Damaging Winds in Kansas, July 25, 2018$13,000 · 1.75 in hail · 7 eventsDuring the late afternoon thunderstorms developed behind a southward moving cold front. Hail up to golf ball size was reported near Nicodemus and in Bogue. Winds from the thunderstorms were strong enough to blow down a tree in Bogue and snap two power poles south of Bogue.
• Hail in Virginia, July 25, 20180.75 in hail · 1 eventThe area was within a region of moist and unstable air. Numerous heavy rain producing showers and storms developed across the area. One of these storms became strong and produced penny-size hail in Appomattox County.
• Hail and Damaging Winds in Wisconsin, July 25, 201850 kt wind · 3 eventsA weak cold front moved from northeast Minnesota into northwest Wisconsin as the day progressed. Cloud cover and limited instability prevented any storms from firing until the front reached northwest Wisconsin. Some clearing was realized here leading to more instability.
• Damaging Wind in Colorado, July 25, 201860 kt wind · 1 eventA wind gust of 69 mph was measured with a severe thunderstorm near Beulah.
• Hail and Damaging Winds in Wisconsin, July 25, 2018$25,000 · 1 in hail · 6 eventsThunderstorms developed in unstable air ahead of an approaching cold front. A few of the storms produced large hail and damaging winds.
• Hail in Kansas, July 25, 20181 in hail · 2 eventsLow-end severe hail occurred over western Rooks county late on this Wednesday afternoon. A couple isolated thunderstorms formed early in the afternoon over south central Nebraska. By 3 PM CST, the storms near McCook began crossing into north central Kansas.
• Flash Flooding in District of Columbia, July 25, 20184 eventsLocally heavy rain fell in Washington DC on the afternoon of July 25th. This caused flash flooding at rush hour in the metro area.
• Damaging Winds in South Carolina, July 25, 201855 kt wind · 5 eventsAn upper level trough and a moist atmosphere led to scattered severe thunderstorms across the Midlands of SC.
• Hail and Damaging Winds in Kansas, July 25, 20181.75 in hail · 27 eventsA cold front moved into a very moist and unstable airmass during the evening.
• Hail in Iowa, July 25, 20181 in hail · 1 eventA line of thunderstorms moved across northern Iowa during the evening of July 25th. One of these storms dropped quarter sized hail near Nora Springs (Floyd County).
• Hail and Damaging Winds in Colorado, July 25, 2018$200,000 · 1 in hail · 7 eventsSevere thunderstorms moved across Boulder, Broomfield, Douglas, Elbert and Weld counties. The storms produced winds gusts to around 80 mph, quarter size hail and very heavy rain; they downed trees and damaged homes and vehicles.
• Hail and Damaging Winds in Montana, July 25, 20181 in hail · 8 eventsSeveral thunderstorms developed via daytime heating of the Rockies, near Glacier National Park, during the late afternoon of July 25th.
• Flash Flood and Damaging Winds in Kansas, July 25 to 30, 201866 kt wind · 3 eventsScattered thunderstorms produced wind damage during the late evening hours of July 25th. Additional thunderstorms produced flash-flooding near Delphos, KS during the morning hours of July 30th.
• Damaging Winds in Oklahoma, July 25, 201870 kt wind · 3 eventsAn established complex of thunderstorms working south across western Kansas approached the Oklahoma Panhandle during the late evening hours of the 25th and early morning hours on the 26th.
• Damaging Wind in Michigan, July 26, 2018$20,000 · 52 kt wind · 1 eventAn isolated storm.
• Damaging Wind in Oklahoma, July 26, 201855 kt wind · 1 eventAn area of showers and storms came out of Kansas into northwest Oklahoma just after midnight on the 26th, producing an isolated severe wind gust.
• Tornadoes and Flash Flooding in Massachusetts, July 26, 2018$80,000 · EF1 · 8 eventsA cold front approached New England on the early morning of July 26th, with warm and very humid air in place over Southern New England. A pre-frontal trough moved through the region generating showers and a few thunderstorms.
• Lightning Strikes in Florida, July 26, 20181 injured · $75,000 · 3 eventsScattered thunderstorms developed over the eastern Gulf and moved onshore throughout the day. Lightning strikes from some of these storms damaged at least three buildings in Pinellas County.
• Hail and Damaging Winds in Michigan, July 26, 20181 in hail · 11 eventsSevere thunderstorms tracked close to I-94 in Washtenaw and Wayne counties.
• Hail and Lightning Strike in South Carolina, July 26, 2018$5,000 · 1 in hail · 3 eventsScattered thunderstorms developed across portions of southeast South Carolina ahead of a nearby stationary front. A few of these storms produced large hail and cloud-to-ground lightning strikes.
• Tornado and Hail in Wyoming, July 26, 2018$1,000 · EF0 · 8 eventsThe combination of a stationary front over the area, a shortwave moving across the area and strong jet dynamics brought rounds of severe thunderstorms over northern and central Wyoming.
• Hail in Colorado, July 26, 20181 in hail · 3 eventsSevere afternoon thunderstorms produced hail the size of quarters near Penrose and Woodland Park.
• Flash Flood in Maine, July 26, 2018$25,000 · 1 eventShowers and thunderstorms developed in a very hot and humid air mass that was in place over the region on the afternoon of July 26th. Precipitable water values around 2 inches resulted in very heavy rainfall rates with these storms.
• Damaging Wind in Ohio, July 26, 201856 kt wind · 1 eventA cold front was draped across northwestern Ohio with 1000 to 2000 J/KG of MLCAPE and effective shear in excess of 35 knots. While the majority of the storms remained below severe limits, a wet microburst caused damage in the Haviland area.
• Hail and Damaging Winds in Ohio, July 26, 2018$188,000 · 1 in hail · 17 eventsA cold front swept east across the Upper Ohio Valley on July 26th causing a lines of thunderstorms to develop. A lot of storm damage was reported along the central lakeshore counties of Lake Erie. Sandusky in Erie County sustained the worst of the damage.
• Hail and Damaging Winds in Colorado, July 26, 20181 in hail · 10 eventsA group of storms formed near a front in Northeast Colorado and moved southeast, with storm coverage increasing through the afternoon and evening. Hail up to quarter size was reported at multiple locations, along with wind gusts up to 60 MPH.
• Hail in Montana, July 26, 20181 in hail · 1 eventA thunderstorm developed via daytime heating of higher terrain in Waterton Lakes National Park, Alberta during the early afternoon of July 26th. As this storm moved southeastward, it became supercellular and produced quarter-size hail near Saint Mary.
• Hail in Ohio, July 26, 20181 in hail · 2 eventsScattered thunderstorms developed along a cold front that was pushing through the Ohio Valley.
• Flash Flooding and Hail in Wyoming, July 26, 20181.75 in hail · 10 eventsThunderstorms produced large hail and heavy rainfall that lead to localized flash flooding.
• Flash Flooding in Colorado, July 26, 20183 eventsAn excess of rainfall has antecedent soil conditions prime for additional flooding across El Paso County. Anomalously strong northwesterly flow, monsoonal moisture, and surface southeasterly flow sparked daytime thunderstorms along the mountains and the Palmer Divide.
• Hail and Damaging Wind in Montana, July 26, 20181.75 in hail · 10 eventsA supercell thunderstorm developed over western Stillwater County near Reed Point. The thunderstorm moved southeast hitting the town of Columbus. Damage was reported across the area due to large wind-driven hail.
• Damaging Winds in Pennsylvania, July 26, 2018$6,000 · 50 kt wind · 2 eventsA cold front swept east across the Upper Ohio Valley on July 26th causing a line of thunderstorms to develop. Some storm damage was reported in Erie and Crawford Counties.
• Flash Flood in Colorado, July 26, 20181 eventHuerfano County Emergency Manager provided a delayed report of flash flooding caused by heavy rainfall over the South Abeyta Creek near Highway 160.
• Damaging Winds in Nebraska, July 26, 2018$2,000 · 87 kt wind · 2 eventsDuring the afternoon a group of thunderstorms, behind a cold that was producing quarter size hail in Yuma County, extended east into Dundy County.
• Flash Flood in Idaho, July 26, 20181 eventVehicles reported submerged under water at the Northgate Mile Overpass. Additional reports of flooding from Lomax Street, Melody Street, Holmes Avenue and other streets.
• Flash Flood and Hail in Kansas, July 26, 2018$163,000 · 1 in hail · 23 eventsDuring the late afternoon and through the evening a group of thunderstorms moved in from the northwest behind a cold front.
• Flash Flood in Arizona, July 26, 20181 eventMonsoon moisture remained over northern Arizona. A thunderstorm caused flash flooding in the Verde Valley.
• Damaging Wind in Wyoming, July 26, 201861 kt wind · 1 eventAn isolated thunderstorm produced some wind damage in Clearmont.
• Flash Flooding and Hail in Arizona, July 26 to 27, 20181 in hail · 5 eventsAn increase in moisture brought more storms to northern Arizona.
• Damaging Wind in Indiana, July 26, 2018$5,000 · 52 kt wind · 1 eventA band of scattered thunderstorms storms stretched from northeast to southwest across central Indiana during the evening of July the 26th. One of these thunderstorms produced wind damage in Decatur County.
• Hail and Damaging Wind in Nebraska, July 26, 2018$6.2 million · 1.5 in hail · 2 eventsDamaging winds and large hail occurred over Furnas county late on this Thursday afternoon. Before that occurred, an area of scattered thunderstorms developed across the Nebraska Sandhills during the early afternoon.
• Damaging Wind in Indiana, July 26, 2018$4,000 · 50 kt wind · 1 eventScattered thunderstorms developed along a cold front that was pushing through the Ohio Valley.
• Flash Flooding and Hail in New Mexico, July 26, 2018$1.1 million · 55 kt wind · 6 eventsA back door cold front that shifted southwest through eastern New Mexico on the 25th provided a reinforcing blast of low level moisture for the Rio Grande Valley on the 26th.
• Hail and Damaging Winds in Colorado, July 26, 20181.25 in hail · 6 eventsSevere thunderstorms produced intense winds and large hail across parts of Adams, Denver, Larimer, and Weld counties. The strongest storms produced a peak wind gust to 79 mph and hail up to half dollar size.
• Flash Flooding and Heavy Rain in Colorado, July 26, 20183 eventsA thunderstorm developed over the Junkins Burn Scar in Custer County, Colorado causing a flash flood to occur shortly after. There was a flash flood warning issued during this event.
• Hail and Damaging Winds in Pennsylvania, July 26, 2018$500 · 1 in hail · 6 eventsAfter a day of quiet and dry weather under a shortwave ridge, a cold front progressed from the northwest and brought a line of showers and thunderstorms. The evening (00Z) Pittsburgh sounding had mid level winds 40 to 50 knots, helping to fuel severe storms.
• Hail in Wyoming, July 26, 20181 in hail · 1 eventA thunderstorm briefly became severe over central Weston County, producing large hail west of Newcastle.
• Damaging Wind in Arizona, July 26, 201852 kt wind · 1 eventScattered thunderstorms moved southwest off the Mogollon Rim and eventually developed over Cochise County. One storm produced a severe wind gust.
• Hail in Wyoming, July 26, 20181.75 in hail · 1 eventA severe thunderstorm developed north of Newcastle and moved east into South Dakota. The storm produced large hail to golf ball size.
• Damaging Wind in New York, July 26, 2018$10,000 · 50 kt wind · 1 eventA few severe thunderstorms moved into north central New York during the late evening of the 26th.
• Damaging Wind in South Carolina, July 27, 2018$10,000 · 56 kt wind · 1 eventAn approaching cold front produced a strong storm in Marlboro County.
• Flash Flooding and Damaging Winds in New Jersey, July 27, 201850 kt wind · 5 eventsSevere thunderstorms with damaging winds, and flash flooding affected parts of New Jersey. Locally heavy rainfall occurred in a short amount of time. Rainfall totals of 3 to 6 inches fell in northeastern Middlesex County.
• Damaging Winds in New Jersey, July 27, 201850 kt wind · 2 eventsAn approaching surface trough combined with moderate instability to produce widespread severe weather across the Mid-Atlantic. The event was well forecast with most of the area being highlighted in a Slight Risk Category by the Storm Prediction Center.
• Flash Flooding and Damaging Wind in West Virginia, July 27, 2018$4,000 · 50 kt wind · 4 eventsShowers and thunderstorms formed on the 27th as a cold front moved through. Some storms were stronger, producing isolated tree damage. Some areas also experienced repetitive storms, causing high water in spots.
• Damaging Winds in Virginia, July 27, 201860 kt wind · 11 eventsA cold front passed through the area on the 27th. Ahead of the boundary, a southerly flow led to plenty of moisture an unstable atmosphere. A potent upper-level low caused stronger winds aloft as well.
• Damaging Winds in New Hampshire, July 27, 201850 kt wind · 2 eventsA weak, slow-moving cold front was the focus for afternoon showers and thunderstorms in a very warm and humid air mass. A few storms reached severe limits producing reports of wind damage.
• Hail in Nebraska, July 27, 20181 in hail · 1 eventA strong thunderstorm moved across Cheyenne County producing large hail. A trained spotter at the Sidney Airport measured hail varying in size from nickels to quarters.
• Damaging Wind in Delaware, July 27, 201850 kt wind · 1 eventSevere thunderstorms impacted the area and caused wind damage.
• Damaging Wind in Delaware, July 27, 201850 kt wind · 1 eventAn approaching surface trough combined with moderate instability to produce widespread severe weather across the Mid-Atlantic. The event was well forecast with most of the area being highlighted in a Slight Risk Category by the Storm Prediction Center.
• Flash Flooding in New Jersey, July 27, 20182 eventsShowers and thunderstorms developed out ahead of an approaching cold front and stalled over parts of northeast New Jersey, producing 1-2 inches of rain in a matter of hours resulting in isolated reports of flash flooding in Union and Essex counties.
• Damaging Winds in Louisiana, July 27, 201861 kt wind · 2 eventsA northwest flow aloft allowed for a weak shortwave trough to drop southeast into the Ark-La-Tex during the afternoon hours of July 27th, where a weak cold front pulled up stationary from just north of the DFW Metroplex to along the Arkansas/Louisiana state line.
• Hail and Damaging Winds in Maryland, July 27, 20181.25 in hail · 34 eventsA cold front passed through the area on the 27th. Ahead of the boundary, a southerly flow led to plenty of moisture an unstable atmosphere. A potent upper-level low caused stronger winds aloft as well.
• Flash Flood and Damaging Wind in Vermont, July 27, 2018$415,000 · 50 kt wind · 2 eventsA cold front moved across New York into Vermont during the afternoon hours of July 27th. Scattered thunderstorms in moderated instability caused isolated wind damage in the form of downed trees and localized flash flooding in Springfield.
• Tornado and Lightning Strike in Georgia, July 27, 2018$5,000 · EF1 · 2 eventsA cluster of thunderstorms developed near the southeast Georgia coast in advance of a stationary front inland.
• Damaging Winds in New York, July 27, 2018$90,000 · 70 kt wind · 7 eventsA cold front moved across New York State on the 27th. This front triggered a round of severe thunderstorms.
• Hail in Florida, July 27, 20180.88 in hail · 1 eventThe ridge axis of a surface low was located near the south shore of Lake Okeechobee. Also, an elongated southwest to northeast oriented upper-level trough was located across north Florida, while its mid-level reflection sat further south over central Florida.
• Damaging Winds in Massachusetts, July 27, 2018$13,000 · 50 kt wind · 5 eventsA front remained stalled over Southern New England. South wind maintained a tropical airmass over the region. Showers and a few thunderstorms developed in this environment.
• Flash Flooding and Damaging Winds in Pennsylvania, July 27, 201850 kt wind · 4 eventsSevere thunderstorms impacted the area and caused wind damage. Also, flash flooding occurred in northeastern Berks County, where 2 to 4 inches of rain fell in a short amount of time.
• Damaging Wind in West Virginia, July 27, 201850 kt wind · 1 eventA cold front caused a severe thunderstorm in the eastern Panhandle of West Virginia.
• Hail and Damaging Wind in Colorado, July 27, 20181 in hail · 4 eventsAnother round of severe thunderstorms during the afternoon of the 27th produced hail the size of quarters near Canon City and Colorado City as well as thunderstorm wind gusts that broke 4 inch diameter tree limbs near Eads.
• Flash Flood in Colorado, July 27, 20181 eventHuerfano County Emergency Manager provided a delayed report of flash flooding caused by heavy rainfall over the Yellowstone Creek near County Road 530.
• Hail and Damaging Winds in Colorado, July 27, 20183.5 in hail · 6 eventsThunderstorm activity moved south across East Central Colorado in the early afternoon behind an outflow boundary originating from the incoming thunderstorm activity.
• Hail and Damaging Wind in Pennsylvania, July 27, 2018$5,000 · 52 kt wind · 2 eventsA cold front crossed central Pennsylvania during the evening hours of July 27, 2018, accompanied by scattered showers and storms. A few strong storms developed in a moderate shear, moderate CAPE environment, with one storm producing wind damage in Lancaster County.
• Flash Flood and Hail in Montana, July 27, 20182 in hail · 18 eventsAn unstable northwest flow aloft resulted in the development of a few severe thunderstorms across portions of the Billings Forecast Area. Large hail along with strong winds brought numerous reports of damage to cars on the west end of Billings.
• Damaging Winds in Maine, July 27, 201850 kt wind · 10 eventsA weak, slow-moving cold front was the focus for afternoon showers and thunderstorms in a very warm and humid air mass. Numerous storms reached severe limits producing reports of wind damage.
• Hail in Wyoming, July 27, 20181.5 in hail · 5 eventsStrong thunderstorms moved across Laramie and Converse Counties producing large hail.
• Damaging Winds in New York, July 27, 2018$65,000 · 56 kt wind · 7 eventsA passing cold front triggered an isolated severe thunderstorm over Orange County and Staten Island.
• Damaging Winds and Heavy Rain in Florida, July 27, 2018$2,000 · 5 eventsSlightly drier air aloft created less sea breeze storm coverage compared to recent days, however it did favor stronger wind gusts in storms.
• Hail and Damaging Wind in Wyoming, July 27, 20181 in hail · 3 eventsA severe thunderstorm moved southeast from southeastern Montana across far northeastern Wyoming. It produced hail to quarter size and gusty winds.
• Tornado in Texas, July 27, 2018$250 · EF0 · 1 eventA sea-breeze induced thunderstorm over Willacy County spawned a brief landspout tornado just east of Raymondville during the afternoon of July 27th, 2018.
• Flash Flooding in New York, July 27, 20183 eventsShowers and thunderstorms developed out ahead of an approaching cold front and stalled over parts of Brooklyn and Staten Island, producing anywhere from 1-4.5 inches of rain in a matter of hours.
• Tornadoes and Hail in Colorado, July 27, 20183 injured · $300,000 · EF1 · 10 eventsFive tornadoes touched down, three of those produced damage on an EF-1 scale. South of Byers, a tornado took to roof off a manufactured home and partially destroyed an outbuilding. The tornado flipped a UPS truck end over end and injured the driver.
• Flash Flood in Colorado, July 27, 20181 eventA severe thunderstorm developed over the Junkins Burn scar during the afternoon of the July 27th. A severe thunderstorm warning was in place for the thunderstorm, as well as a flash flood warning for the drainage of the burn scar.
• Hail in Nebraska, July 27, 20180.88 in hail · 1 eventA thunderstorm that had a history of producing nickel size hail in Yuma County moved through Dundy County behind a weak surface boundary. Hail up to nickel size was reported in Haigler as the storm moved through.
• Hail and Damaging Winds in Wyoming, July 27, 2018$10,000 · 2 in hail · 7 eventsA persistent stationary front over central Wyoming brought a second day of severe weather. Johnson County was the hardest hit as two supercell thunderstorms brought large hail to many areas, including the city of Buffalo.
• Hail and Damaging Winds in Kansas, July 27, 20181.75 in hail · 12 eventsA thunderstorm producing large hail and damaging winds moved south across far Northwest Kansas behind a weak surface boundary. The largest hail reported was golf ball size near Goodland. The strongest wind gust reported was 60 MPH behind the storm in northeast Sherman County.
• Flash Flooding and Flooding in Maryland, July 27, 201812 eventsHeavy rain fell on saturated ground during the afternoon and evening of July 27th in the Baltimore metro area. One to three inches of rain was observed, along with numerous instances of flooding.
• Hail in South Dakota, July 27, 20181 in hail · 1 eventA thunderstorm became severe over southern Todd County and tracked southeast into Nebraska. The storm produced quarter sized hail in St. Francis.
• Damaging Wind in Maryland, July 27, 201850 kt wind · 1 eventAn approaching surface trough combined with moderate instability to produce widespread severe weather across the Mid-Atlantic. The event was well forecast with most of the area being highlighted in a Slight Risk Category by the Storm Prediction Center.
• Damaging Wind in Maryland, July 27, 201850 kt wind · 1 eventSevere thunderstorms impacted the area and caused wind damage.
• Hail and Damaging Winds in South Dakota, July 27, 20183.25 in hail · 23 eventsA large, long-lived supercell thunderstorm tracked from the Spearfish area across the central Black Hills and then southeast through Oglala Lakota County before moving into Nebraska. The storm produced a swath of large hail and strong wind gusts in its path.
• Flash Flooding and Hail in Kansas, July 27 to 28, 20181.75 in hail · 28 eventsAn MCS rolled across the area after it initiated across northeast Colorado. There was also a stalled front across the southern portion of the area that became the focus for additional thunderstorms.
• Hail in Montana, July 27, 20181.75 in hail · 2 eventsA severe thunderstorm developed west of Hall and brought severe hail to Hall and Deerlodge.
• Damaging Winds in Pennsylvania, July 27, 201850 kt wind · 2 eventsAn approaching surface trough combined with moderate instability to produce widespread severe weather across the Mid-Atlantic. The event was well forecast with most of the area being highlighted in a Slight Risk Category by the Storm Prediction Center.
• Flash Flood and Damaging Winds in North Carolina, July 27, 2018$500 · 50 kt wind · 4 eventsDominated by outflow and sea-breeze boundaries, a few multi-cellular clusters developed across the NC Sandhills, eastern Piedmont and coastal plain counties. Two thunderstorm clusters produced some scattered wind damage.
• Hail and Damaging Wind in South Dakota, July 27, 20181 in hail · 2 eventsHail and strong wind gusts accompanied a severe thunderstorm that tracked southeast across the central and southern Black Hills.
• Hail and Damaging Winds in Wyoming, July 27, 20181 in hail · 6 eventsAn unstable northwest flow aloft resulted in the development of a severe thunderstorm that moved across the Sheridan area during the early evening hours of the 27th. Large hail and damaging wind gusts accompanied the thunderstorm.
• Hail and Damaging Winds in Nebraska, July 27, 20181.75 in hail · 8 eventsSevere storms developed during the evening of July 27. The storms developed in northeast Nebraska and produced widespread wind and hail damage. Winds up to 75 mph were estimated, and hail up to 1 inch occurred.
• Hail in Montana, July 27, 20181 in hail · 1 eventScattered showers and thunderstorms developed via daytime heating of higher terrain in north-central and southwest MT during the afternoon and early evening of July 27th.
• Damaging Wind in Wyoming, July 27, 201852 kt wind · 1 eventWind gusts to 60 mph accompanied a severe thunderstorm over northwestern Campbell County.
• Damaging Wind in Arizona, July 27, 2018$2,000 · 61 kt wind · 1 eventIsolated thunderstorms developed and moved into portions of the greater Phoenix metropolitan area during the evening hours on July 27th.
• Hail and Damaging Winds in Virginia, July 27, 2018$11,000 · 50 kt wind · 3 eventsA cold front moved into and across the region. Its passage helped initiate showers and storms across the area with a couple of reports of wind damage and one report of nickle sized hail.
• Hail in New Mexico, July 27, 20180.75 in hail · 1 eventA cluster of thunderstorms that developed over the Albuquerque metro area moved slowly south through the city with heavy rainfall and small hail. Most areas picked up between one and two inches of rain with rice to pea size hail and frequent cloud to ground lightning.
• Damaging Wind in Arizona, July 27, 2018$50,000 · 61 kt wind · 1 eventIsolated thunderstorms moved southwest across southeast Arizona. One storm became severe on Tucson's far east side, causing damage to several homes.
• Flash Flood and Damaging Winds in Kansas, July 28 to 29, 201870 kt wind · 12 eventsAn isolated marginal severe thunderstorm was reported in extreme southwest Kansas.
• Flash Flooding and Heavy Rain in Colorado, July 28, 20184 eventsSubtropical moisture trapped underneath a ridge of high pressure produced some thunderstorms with heavy rainfall in Eagle County which led to some flash flooding over the Lake Christine fire burn scar.
• Flash Flood and Damaging Winds in North Carolina, July 28, 20181 death · 1 injured · $2,000 · 50 kt wind · 7 eventsA quasi-stationary front, bisecting central NC, provided a focus point for scattered to numerous showers and thunderstorms. Thanks to a moist and unstable airmass, a few of these storms breached the severe limit, resulting in isolated wind damage, and localized flash flooding.
• Damaging Winds in Vermont, July 28, 201860 kt wind · 8 eventsScattered thunderstorms developed during the afternoon of July 28th ahead of a weak frontal boundary. One of these storms produced fairly extensive damage across the town of Westminster, downing numerous trees, some onto houses and cars.
• Hail and Damaging Winds in Maine, July 28, 20181.25 in hail · 4 eventsA cold front crossed the region through the afternoon and evening of the 28th. Thunderstorms developed in advance of the front. Some of the thunderstorms became severe producing damaging winds and large hail.
• Lightning Strike in Florida, July 28, 2018$1,000 · 1 eventSea breeze storms formed over a moist and unstable airmass.
• Hail and Damaging Winds in New York, July 28, 20181 in hail · 8 eventsScattered thunderstorms developed during the afternoon of July 28th ahead of a weak frontal boundary. A couple of these storms resulted in downed trees and hail up to quarter size over southern portions of Dutchess County.
• Hail and Damaging Winds in New Hampshire, July 28, 20188 injured · 1.25 in hail · 23 eventsAn approaching shortwave and increasing shear combined with a slow moving cold front to produce scattered showers and thunderstorms on the afternoon of July 28th.
• Flash Flooding and Hail in Arizona, July 28, 20181 in hail · 5 eventsMonsoon moisture over Arizona caused scattered strong to severe thunderstorms over the area.
• Damaging Winds and Lightning Strike in Florida, July 28 to 29, 2018$29,000 · 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.
• Damaging Winds in Connecticut, July 28, 201860 kt wind · 5 eventsScattered thunderstorms developed during the afternoon of July 28th ahead of a weak frontal boundary. One of these storms resulted in downed trees over portions of Litchfield County.
• Hail and Damaging Winds in Oklahoma, July 28 to 29, 2018$37,000 · 2.5 in hail · 6 eventsThunderstorms intensified across portions of eastern Oklahoma during the afternoon of the 28th as the atmosphere became very unstable across the area. The strongest storms produced large hail up to tennis ball size and damaging wind.
• Damaging Wind in Alabama, July 28, 201850 kt wind · 1 eventScattered 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.
• Hail in Wyoming, July 28, 20181.75 in hail · 2 eventsA stationary frontal boundary was again the focus for severe thunderstorms for a third consecutive day. Natrona County was the focus once again. Large hail was reported a couple of locations.
• Lightning Strike in Georgia, July 28, 2018$5,000 · 1 eventIsolated thunderstorms developed along the southeast Georgia coast in the afternoon. These thunderstorms produced lightning strikes with one such strike causing a fire in the attic of a home near Savannah.
• Hail in Colorado, July 28, 20181 in hail · 1 eventHailstones up to the size of quarters were noted near Monument as a severe thunderstorm impacted the area.
• Damaging Winds in Mississippi, July 28, 2018$38,000 · 50 kt wind · 3 eventsAfternoon showers and storms developed and brought damaging winds to portions of the region.
• Damaging Winds in Maine, July 28, 201850 kt wind · 3 eventsAn approaching shortwave and increasing shear combined with a slow moving cold front to produce scattered showers and thunderstorms on the afternoon of July 28th. Several reports of wind damage were associated with these storms as they moved through western Maine.
• Damaging Wind in Utah, July 28, 201850 kt wind · 1 eventHigh-based thunderstorms associated with a weak disturbance produced strong outflow winds.
• Flash Flooding in New York, July 28, 20182 eventsA cold front stalled across the region during the afternoon, resulting in widely scattered showers and thunderstorms, primarily across the Lower Hudson Valley.
• Hail in Wisconsin, July 28, 20180.75 in hail · 1 eventHigh pressure was in place over the region, but daytime heating led to a few weak storms in the St. Croix River Valley.
• Hail in Minnesota, July 28, 20180.75 in hail · 2 eventsHigh pressure was in place over the region and daytime heating led to a few weak storms in northeast Minnesota. Some small hail fell and a funnel cloud was observed.
• Tornadoes and Hail in Wyoming, July 28, 2018EF3 · 5 eventsThunderstorms produced large hail, damaging winds and a couple tornadoes over portions of Converse and Platte counties.
• Damaging Winds in Colorado, July 28, 201852 kt wind · 2 eventsHigh-based thunderstorms associated with a weak disturbance produced strong outflow winds.
• Hail in Florida, July 28, 20180.75 in hail · 1 eventAfternoon sea breeze thunderstorms across southwest Florida produced sub-severe hail.
• Hail and Damaging Wind in Oklahoma, July 28, 20181 in hail · 2 eventsStorms in eastern Oklahoma propogated westward into central Oklahoma on the afternoon of the 28th, producing an isolated severe wind gust.
• Damaging Wind in Kansas, July 28, 201861 kt wind · 1 eventAn isolated severe thunderstorm that developed in far Southeast Kansas late in the afternoon caused wind damage in and around Coffeyville. Two power poles were blown down, one in town while the 2nd just south of town.
• Hail in Wyoming, July 28, 20181 in hail · 1 eventA thunderstorm briefly became severe over southwestern Campbell County, producing hail up to quarter size.
• Hail in Montana, July 28, 20181.25 in hail · 3 eventsAn isolated thunderstorm produced some severe size hail.
• Tornado and Flash Flood in Nebraska, July 28, 2018EF0 · 3 eventsThunderstorms produced large hail, very heavy rainfall and a weak tornado across Kimball County.
• Hail in Colorado, July 28, 20181 in hail · 3 eventsA group of thunderstorms formed over Eastern Colorado near a stalled front in the early evening. As time progressed the storm coverage increased, with the storms merging into a larger mass.
• Tornado and Hail in Colorado, July 28, 2018EF0 · 18 eventsSevere thunderstorms produced large hail up to baseball size, along with damaging thunderstorm winds gusts to nearly 80 mph over Logan, Phillips, and Sedgwick counties. A brief tornado was also observed.
• Flash Flooding in North Carolina, July 28, 20183 eventsA stationary front produced slow moving storms and flash flooding.
• Damaging Wind in Arizona, July 28, 201851 kt wind · 1 eventIsolated thunderstorms developed over south-central Arizona, including the higher terrain areas to the northeast of Phoenix, during the evening hours on July 28th. Some of the stronger storms generated gusty outflow winds measured in excess of 50 mph.
• Hail and Damaging Winds in Nebraska, July 28, 2018$6.3 million · 1.75 in hail · 7 eventsA severe storm produced wind gusts up to 88 mph at the Central Nebraska Regional Airport in Grand Island late on this Saturday evening. Around 5 PM CST, a small thunderstorm formed southwest of O'Neill.
• Damaging Wind and Heavy Rain in Arizona, July 28, 2018$87,000 · 52 kt wind · 3 eventsThunderstorms moved southwest across Pinal and Pima counties. Heavy rain and wind gusts caused damage in Kearny, Mammoth and San Manuel.
• Flash Flood and Hail in Kansas, July 28 to 29, 20181.75 in hail · 4 eventsThe thunderstorm activity from Colorado moved into Northwest Kansas during the mid evening, with a second round moving in from the north in the late evening. The strongest wind reported with these storms was 61 MPH at Oakely, as a second round of storms moved through.
• Lightning Strike in Rhode Island, July 28, 2018$5,000 · 1 eventA cold front moved through Southern New England late on July 28th. This created thunderstorms that moved across Southern Rhode Island.
• Damaging Wind in Wyoming, July 28, 201870 kt wind · 1 eventAn isolated thunderstorm produced a severe wind gust.
• Flash Flood and Dust Storm in Arizona, July 28 to 29, 2018$15,000 · 2 eventsIsolated to scattered thunderstorms developed to the west of Phoenix and over western portions of Maricopa County, during the middle and late evening hours on July 28th.
• Damaging Winds in Wyoming, July 28, 201865 kt wind · 4 eventsA line of severe thunderstorms tracked southeast across central and southeastern Campbell County. They produced wind gusts over 70 mph.
• Flash Flood in Nebraska, July 28 to 29, 20181 eventA cluster of thunderstorms moved east out of Colorado over Southwest Nebraska in the evening. The thunderstorm activity continued over Southwest Nebraska for several hours before ending. The prolonged rainfall led to flash flooding near Trenton impacting Highways 34 and 6.
• Damaging Wind in Arizona, July 28, 2018$10,000 · 1 eventThunderstorms developed across the northwest portions of La Paz County, including areas along the lower Colorado River Valley and the Parker Dam, during late evening hours on July 28th.
• Damaging Wind in Texas, July 28, 201855 kt wind · 1 eventA complex of thunderstorms more organized across the OK Panhandle did move SE into the TX Panhandle with the assistance of an outflow boundary in this high DCAPE, low shear environment. These storms did produce a severe wind gust across the NE TX Panhandle.
• Flash Flood in South Carolina, July 29, 20181 eventA stationary front produced slow moving storms and flash flooding.
• Damaging Winds in Kansas, July 29, 201876 kt wind · 12 eventsA line of severe thunderstorms surged southeast from Russell County, through Barton and Ellsworth Counties, to as far southeast as Sedgwick County very early in the morning on the 29th.
• Damaging Winds and Lightning Strike in Oklahoma, July 29, 2018$100,000 · 61 kt wind · 3 eventsAn MCS came southeastward out of Kansas just after midnight on the 29th before making its way through the northern half of Oklahoma.
• Flash Flood and Heavy Rain in West Virginia, July 29, 2018$300,000 · 2 eventsA nearly stationary cluster of thunderstorms centered between Princeton and Spanishburg dropped rainfall amounts of 4 to 6 inches. Most of the rain fell within about a three-hour period from 830 to 1130 PM.
• Hail in Michigan, July 29, 20180.88 in hail · 2 eventsScattered thunderstorms developed in northern Michigan on the 29th, some of which produced hail.
• Damaging Winds in Arkansas, July 29, 201861 kt wind · 3 eventsRemnants of a Mesoscale Convective System (MCS) shifted southeast across Southeast Oklahoma, Southwest Arkansas, and extreme Northeast Texas during the morning hours of July 29th, as a shortwave trough dropped southeast from Oklahoma into Arkansas and the Lower Mississippi…
• Damaging Wind in South Dakota, July 29, 201859 kt wind · 1 eventA thunderstorm briefly became severe over Harding County, producing wind gusts over 60 mph in Buffalo.
• Damaging Winds in Louisiana, July 29, 20181 death · 61 kt wind · 21 eventsRemnants of a Mesoscale Convective System (MCS) shifted southeast across Southeast Oklahoma, Southwest Arkansas, and extreme Northeast Texas during the morning hours of July 29th, as a shortwave trough dropped southeast from Oklahoma into Arkansas and the Lower Mississippi…
• Tornadoes and Flash Flood in Wyoming, July 29, 2018EF0 · 28 eventsThunderstorms produced a few weak tornadoes, very heavy rainfall and numerous reports of large hail across Goshen, Platte, Albany and Laramie counties.
• Hail and Damaging Wind in South Dakota, July 29, 20181 in hail · 3 eventsA severe thunderstorm developed over the southern Black Hills and tracked southeast through eastern Fall River County and into Nebraska. The storm produced large hail and wind gusts over 60 mph.
• Tornado and Hail in South Dakota, July 29, 2018EF0 · 4 eventsA severe thunderstorm developed over northern Oglala Lakota County and tracked southeast across eastern Oglala Lakota County. Large hail and strong wind gusts accompanied the storm. The storm produced a weak tornado south of Kyle that only damaged some trees.
• Hail and Damaging Winds in South Dakota, July 29, 20181.75 in hail · 6 eventsA severe thunderstorm developed between Belle Fourche and Spearfish, then tracked southeast through portions of the northern Black Hills. The storm produced large hail and strong wind gusts along its path.
• Flash Flooding in North Carolina, July 29, 20184 eventsTraining thunderstorms produced flash flooding across portions of the Northern Outer Banks during the afternoon hours.
• Tornadoes and Hail in Colorado, July 29, 2018EF2 · 45 eventsSevere thunderstorms brought damaging tornadoes, straight-line winds, large hail and heavy rain across northeast Colorado. A total of 4 tornadoes touched down and impacted the communities of Brush, Hillrose, and Snyder.
• Hail in North Dakota, July 29, 20181 in hail · 1 eventAn upper level trough dropping through the area resulted in scattered thunderstorms across much of western and central North Dakota. One storm became severe over Sheridan County, producing one-inch diameter hail.
• Hail in South Dakota, July 29, 20180.88 in hail · 1 eventA thunderstorm produced nickel sized hail near Pactola Reservoir.
• Hail and Damaging Winds in Colorado, July 29, 20183 in hail · 18 eventsSevere thunderstorms impacted southeastern Colorado during the afternoon and evening of the 29th, producing hail up to the size of large apples as well damaging thunderstorm winds which caused tree damage, windows and windshields to be broken as well as damaging and/or…
• Flash Flooding and Hail in Nevada, July 29 to 30, 2018$32,000 · 1 in hail · 5 eventsThe last push of moisture in July triggered scattered thunderstorms over the Mojave Desert. Some storms produced severe weather and flash flooding.
• Damaging Winds and Lightning Strike in Louisiana, July 29 to 30, 2018$28,000 · 50 kt wind · 3 eventsA couple of days of scattered storms occurred across south and central Louisiana with some becoming strong.
• Lightning Strikes in California, July 29, 2018$20,000 · 2 eventsIncreased monsoonal moisture in Southern California resulted in thunderstorms across the San Bernardino Mountains. These storms produced cloud-to-ground lightning, which caused a brush fire near Lake Arrowhead. Lightning also struck a tree and caught it on fire in Fawnskin.
• Damaging Wind in Texas, July 29, 2018$12,000 · 50 kt wind · 1 eventA thunderstorm downed trees in Newton County.
• Flash Flood in Utah, July 29, 20181 eventA moist air mass remained in place over southern Utah on July 29, and scattered thunderstorms across the area produced an area of flash flooding.
• Hail in Minnesota, July 29, 20181 in hail · 1 eventCold temperatures aloft and daytime heating helped contribute to hit and miss afternoon and early evening showers and mainly weak thunderstorms. However, one thunderstorm over Polk County, Minnesota, did become severe.
• Hail and Damaging Winds in Colorado, July 29, 2018$251,000 · 2.75 in hail · 9 eventsA particularly dangerous thunderstorm moved south across Eastern Colorado during the evening near a stationary front.
• Hail in South Dakota, July 29, 20181 in hail · 1 eventA thunderstorm briefly became severe north of Edgemont, producing hail around quarter size.
• Damaging Wind and Heavy Rain in Arizona, July 29, 2018$10,000 · 52 kt wind · 2 eventsScattered showers and thunderstorms developed across the higher terrain of southern Gila County during the afternoon hours on July 29th and some of the stronger storms affected the area around Globe and Miami.
• Flash Flooding in North Carolina, July 29, 20182 eventsHigh precipitable waters of around 2.0 inches, from the combination of gulf Stream moisture from a Bermuda high and low level flow parallel to a front zone stalled across the region, resulted in heavy rainfall of 2 to 4 inches across central NC.
• Damaging Winds in Texas, July 29, 201852 kt wind · 5 eventsFirst round of convection occurred across portions of the southeast Texas Panhandle starting around the late afternoon on the 29th.
• Flash Flood in Georgia, July 29, 20182 injured · $50,000 · 1 eventStationary front draped over Georgia confined a plume of deep moisture over central and southern portions of the state. Afternoon heating kicked off thunderstorm development, with a large area of storms over east central Georgia lasting into the late evening hours.
• Flash Flood in Colorado, July 29, 20181 eventHuerfano County Emergency Manager provided a delayed report of flash flooding caused by heavy rainfall over the Middle Creek near County Road 442.
• Damaging Winds in Texas, July 29 to 30, 201863 kt wind · 2 eventsLate evening isolated thunderstorms developed over the extreme southern Texas Panhandle. One of these storms became severe near Silverton and produced a wind gust to 66 mph.
• Damaging Winds in Nebraska, July 29, 2018$1.3 million · 56 kt wind · 2 eventsA thunderstorm produced severe winds over localized parts of Gosper and Furnas counties on this Sunday evening. This storm evolved from small multicell cluster of storms over southern Custer county early in the evening.
• Damaging Wind in Kansas, July 29, 2018$1,000 · 52 kt wind · 1 eventA severe thunderstorm snapped some tree limbs just south of Prairie View late on this Sunday evening. This storm evolved from small multicell cluster of storms over southern Custer county Nebraska earlier in the evening.
• Damaging Winds in Oklahoma, July 29, 201861 kt wind · 2 eventsFirst round of convection occurred across portions of the southeast Texas Panhandle starting around the late afternoon on the 29th.
• Damaging Winds in Oklahoma, July 30, 2018$5,000 · 68 kt wind · 15 eventsLate on the 29th into the early hours of the 30th, an MCS came down out of Kansas and traversed the most of Oklahoma and western north Texas northwest to southeast with some impressive long-lived wind gusts.
• Damaging Winds in Texas, July 30, 201852 kt wind · 2 eventsLate on the 29th into the early hours of the 30th, an MCS came down out of Kansas and traversed the most of Oklahoma and western north Texas northwest to southeast with some impressive long-lived wind gusts.
• Flash Flooding and Heavy Rain in North Carolina, July 30 to 31, 2018$100,000 · 5 eventsAn upper ridge off the east coast and an upper low over the central U.S. combined to bring enhanced moisture into the region.
• Flash Flood and Heavy Rain in Virginia, July 30 to 31, 20183 eventsAn upper ridge off the east coast and an upper low over the central U.S. combined to bring enhanced moisture into the region.
• Flash Flooding in North Carolina, July 30, 20182 eventsHeavy rain on already saturated soil produced flash flooding.
• Flash Flooding and Lightning Strike in West Virginia, July 30, 2018$8,000 · 3 eventsA warm front lifted through West Virginia on the morning of the 30th. An upper level disturbance was also crossing that morning. The combination of these resulted in a slow moving thunderstorm that produced excessive rainfall across sections of Central West Virginia.
• Tornadoes and Damaging Winds in Kansas, July 30, 2018EF0 · 7 eventsA storm system dropped south across central sections of the state. It started out as just below severe criteria before they exploded into a significant situation. One tornado occurred with a long swath of winds between 75 and 90 mph.
• Flash Flood and Heavy Rain in Pennsylvania, July 30, 2018$15,000 · 2 eventsMoisture advection in southwesterly flow increased throughout the day as a |longwave trough over the midwest deepened. A shortwave moving through the trough brought showers and thunderstorms with heavy rain to the region.
• Hail in Wisconsin, July 30, 20180.75 in hail · 1 eventThunderstorms in east-central Wisconsin produced penny size hail in Denmark (Brown Co.).
• Damaging Winds in Oklahoma, July 30, 2018$5,000 · 55 kt wind · 4 eventsAn area of storms camed south out of Kansas into north central Oklahoma during the afternoon of the 30th producing a few severe wind gusts.
• Damaging Winds in Oklahoma, July 30, 2018$40,000 · 65 kt wind · 16 eventsThunderstorms over northern Kansas intensified as they moved southeast into southeastern Kansas and northeastern Oklahoma during the afternoon hours of the 30th. These storms produced damaging wind across northeastern Oklahoma into the early evening hours.
• Damaging Wind in Florida, July 30, 2018$1,000 · 1 eventAfternoon sea breeze thunderstorms developing along the Interstate 75 corridor, producing gusty winds in Hernando County.
• Flash Flood and Hail in New Mexico, July 30, 20181 injured · $805,000 · 1.5 in hail · 12 eventsA back door cold front that surged southwest across New Mexico recharged low level moisture westward into the Rio Grande Valley.
• Tornadoes and Hail in South Dakota, July 30, 2018EF0 · 4 eventsStorms developed in a low-CAPE, low-shear environment during the afternoon. A weak boundary concentrated low-level shear and 0-3km CAPE, which storms were able to use to spin up a couple brief tornadoes during the developmental phase.
• Flash Flood in California, July 30, 2018$1,000 · 1 eventThe last push of moisture in July triggered scattered thunderstorms over the Mojave Desert. Some storms produced severe weather and flash flooding.
• Damaging Wind in Kentucky, July 30, 2018$7,000 · 53 kt wind · 1 eventA strong thunderstorm increased in intensity and became severe as it moved out of central Kentucky into the Mountain Parkway corridor of eastern Kentucky.
• Hail in New Mexico, July 30, 20181 in hail · 1 eventA deep upper trough was draped over the central U.S. plains. Thunderstorms developed along the associated cold front and pushed south.
• Damaging Winds in Arkansas, July 30, 201865 kt wind · 2 eventsThunderstorms over northern Kansas intensified as they moved southeast into southeastern Kansas and northeastern Oklahoma during the afternoon hours of the 30th.
• Damaging Wind in Tennessee, July 30, 2018$3,000 · 50 kt wind · 1 eventScattered strong to severe thunderstorms developed across Middle Tennessee during the afternoon and evening hours on July 30. One report of wind damage was received from Macon County.

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.