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Hail Storm Map — August 18, 2026

Hail storm map for August 18, 2026: max 3.00" hail across AL, CO, FL, IA, KS, MN, MO, MS, MT, NE, SD, WI, ~93,022 structures in swath.

ALCOFLIAKSMNMOMSMTNESDWI

Hail-affected U.S. states Alabama — hail affected Alaska Arizona Colorado — hail affected Florida — hail affected Georgia Indiana Kansas — hail affected Maine Massachusetts Minnesota — hail affected New Jersey North Carolina North Dakota Oklahoma Pennsylvania South Dakota — hail affected Texas Wyoming Connecticut Missouri — hail affected West Virginia Illinois New Mexico Arkansas California Delaware District of Columbia Hawaii Iowa — hail affected Kentucky Maryland Michigan Mississippi — hail affected Montana — hail affected New Hampshire New York Ohio Oregon Tennessee Utah Virginia Washington Wisconsin — hail affected Nebraska — hail affected South Carolina Idaho Nevada Vermont Louisiana Rhode Island

A significant hail event swept across AL, CO, FL, IA and 8 more states on August 18, 2026, with MRMS radar measuring stones up to 3.00". An estimated 93,022 structures fell inside the qualifying swath. Kansas took the brunt with ~44,951 structures estimated in the ≥1" footprint. Roughly 1,382 of those sat under destructive ≥2.50" stones — the radar tier that routinely totals roofs and shatters auto glass. NOAA logged 33 hail reports and 91 wind reports for the day.

Max hail size
3.00"
States impacted
12
Structures in swath
93,022

Estimated structures affected by state & hail size

State≥1.00"≥1.75"≥2.50"
Kansas44,95111,17595
Missouri30,0506,7881,274
Wisconsin6,613880
Florida3,45900
Minnesota2,642360
South Dakota2,259650
Alabama1,21210
Colorado1,14921513
Montana36640
Mississippi16500
Iowa13200
Nebraska2400

NOAA storm reports

Hail reports (21)

South Dakota · 7 reports

TimeLocationCountyObserver comment
17:591 NNE BrownsvilleLawrenceVideo sumbitted via social media of around 1 inch deep hail accumulation on HWY 385. Time estimated from radar.
18:111 NNE BrownsvilleLawrenceMixed hail sizes up to half-dollar size.
18:594 WSW Dwtn Rapid CityPenningtonTime estimated via radar.
19:015 SW Dwtn Rapid CityPenningtonReport sent to media livestream then relayed via Slack
19:024 SSW Dwtn Rapid CityPenningtonReport sent to media livestream then relayed via Slack.
19:035 NE RockervillePenningtonReport sent to media livestream then relayed via Slack.
19:065 SSW Dwtn Rapid CityPenningtonReport sent to media livestream then relayed via Slack.

Wisconsin · 5 reports

TimeLocationCountyObserver comment
13:461 ESE CrivitzMarinetteCorrects previous hail report from 1 ESE Crivitz. Also, winds were estimated at 40-50 mph.
14:241 NE OnalaskaLa CrosseReport by trained spotter with photo of 1 inch hail. Time estimated by radar.
15:261 N Silver LakeWausharaReport from mPING: Dime (0.75 in.).
15:501 NE Fond Du LacFond du LacDelayed Storm Report. Quarter sized hail.
15:501 SSE Fond Du LacFond du LacSpotter report of quarter sized hail in Fond du Lac.

Kansas · 3 reports

TimeLocationCountyObserver comment
17:427 ENE Ash ValleyRushReport of quarter-size hail.
20:107 NNE ChapmanDickinsonCorrects previous hail report from 7 NNE Chapman.
21:524 SSW OnagaPottawatomieDelayed report. Relayed from social media.

Michigan · 2 reports

TimeLocationCountyObserver comment
16:452 E DaggettMenomineeFrom Facebook messages to the office.
20:285 SSW AtlantaMontmorencyEstimated hail size of dime to nickel for the past few minutes.

Minnesota · 2 reports

TimeLocationCountyObserver comment
17:38AdrianNoblesCalled and reported both quarter sized hail and wind with damage and downed small tree limbs.
18:10BigelowNoblesDelayed Report. Reported via social media.

Florida · 1 report

TimeLocationCountyObserver comment
17:02MariannaJacksonViewer report of quarter size hail in the Marianna area.

Montana · 1 report

TimeLocationCountyObserver comment
13:557 SSE UlmCascadeHail up to pea size falling.

Wind reports (51)

Montana · 13 reports

TimeLocationCountyObserver comment
13:007 SE TiegenPetroleumMesonet station WIEM8 Winnett Sw.
13:498 SSE UlmCascadeAWOS station K1IM India.
14:081 NW BillingsYellowstoneASOS station KBIL Billings.
14:1515 S MosbyPetroleumMesonet station MOYM8 Mosby S.
14:507 SE Fort BentonChouteauMesonet station RIGM8 Frenchmans Ridge.
15:003 NNE MonarchCascadeMesonet station MTMON Monarch Canyon (MT DOT).
15:152 SSE GeyserJudith BasinMesonet station MTGYS Geyser (MT DOT).
15:151 SW SpringdaleParkMesonet station MTSPD Springdale I-90 Mp 352.3.
15:352 SSW Big TimberSweet GrassAWOS station K6S0 Big Timber.
15:537 ENE LivingstonParkASOS station KLVM Livingston.
15:552 ENE HarlowtonWheatlandAWOS station K1KM 2 ENE Harlowton.
16:156 SSW StaceyBig HornMesonet station MTM91 Busby N.
16:552 NW WindhamJudith BasinAWOS station K1CM Charlie.

Florida · 9 reports

TimeLocationCountyObserver comment
14:286 WSW Jacksonville HeigDuvalAWOS station KVQQ Cecil Field - peak thunderstorm wind gust of 43 mph.
14:49TullyWakullaWeatherstem station at Wakulla High School measured a wind gust of 39 mph.
14:534 NE Orange ParkDuvalAWOS station KNIP Jacksonville Naval Air Station had a peak gust 40 mph.
14:53BellairClayWind gusts to 57 mph in the Bellair - Meadowbrook area of Orange Park.
16:552 NNW SimsvilleJacksonHazcam station gusted to 41 mph.
17:181 NW Gainesville AirporAlachuaASOS station KGNV Gainesville - wind gust 46 mph.
17:311 NW Gainesville AirporAlachuaASOS station KGNV Gainesville.
17:32Lake ButlerUnionDelayed report - Weatherstem station in Lake Butler reported a peak gust to 47 mph. Winds began to strengthen around 625 pm with gusts over 40 mph.
20:593 SSW EastpointGMZ755The St George Island weatherstem gusted to 42 mph.

Nebraska · 8 reports

TimeLocationCountyObserver comment
00:022 WNW Grand IslandHallAmbient Weather Station.
00:043 SW Grand IslandHallUPR Station.
00:102 SW ChapmanMerrickCorrects previous non-tstm wnd gst report from 2 SW Chapman. Mesonet station UP140 Chapman 1.8SW (UPR).
00:37WacoYorkDavis Weatherlink Station.
00:555 S FriendSalinePersonal weather station measured wind gust.
01:165 E DentonLancasterPersonal weather station measured gust.
01:205 ESE CreteLancasterPersonal weather station measured wind gust.
01:271 N HallamLancasterPersonal weather station measured wind gust.

Michigan · 5 reports

TimeLocationCountyObserver comment
18:541 WNW PellstonEmmetASOS station KPLN Pellston - Rgnl Airport Of Emmet County.
19:141 NNW BendonBenzieTree damage reported.
19:191 WNW InterlochenGrand TraverseSmall debris in the roadway reported.
19:271 SW FrankfortLMZ346Mesonet station XFLT Frankfort Light.
19:531 SSW GaylordOtsegoASOS station KGLR Gaylord - Otsego County Airport.

Wisconsin · 5 reports

TimeLocationCountyObserver comment
14:159 WSW BabcockWoodMesonet station WIBBK Babcock.
14:162 NNE French IslandLa CrosseASOS station KLSE La Crosse Regional Airport.
15:143 SSW WautomaWausharaAWOS station KY50 Wautoma Airport. This corrects the previous thunderstorm wind gust report from Wautoma.
15:153.4 NE RichfordWausharaFrom private weather station.
17:562 ENE ButlerMilwaukeeAWOS station KMWC Milwaukee Timmerman Airport reports 56 mph winds during thunderstorm.

Kansas · 4 reports

TimeLocationCountyObserver comment
18:226 ENE LarnedPawneePersonal weather station.
21:133 ESE HoltonJacksonPersonal weather station.
21:483 SE WheatonPottawatomieQuarter sized hail also occurring.
23:363 E JarbaloLeavenworthEmergency manager reports 65 mph wind gusts and dime sized hail. Time estimated from radar.

Wyoming · 1 report

TimeLocationCountyObserver comment
18:1513 S ThermopolisHot SpringsWind gust from thunderstorm outflow boundary.

Missouri · 1 report

TimeLocationCountyObserver comment
21:343 S FerrelviewPlatteCorrects previous tstm wnd gst report from 3 S Ferrelview. Estimated 60 mph gusts and power outage reported by NWS Employee. Time estimated by radar.

Alabama · 1 report

TimeLocationCountyObserver comment
17:58Mobile Regional AirportMobileCorrects previous tstm wnd dmg report from Mobile Regional Airport. KMOB ASOS reports thunderstorm wind gusts of 61mph.

Georgia · 1 report

TimeLocationCountyObserver comment
16:573 E SpenceGradyAmbient station gusted to 67 mph.

Colorado · 1 report

TimeLocationCountyObserver comment
22:081 NNW AkronWashingtonAWOS station KAKO Akron.

South Dakota · 1 report

TimeLocationCountyObserver comment
01:305 N IonaLymanStrong winds and rain was coming down horizontally (0.70in). time estimated by Radar.

Iowa · 1 report

TimeLocationCountyObserver comment
18:146 NE SibleyOsceolaPersonal weather station.
Was a specific property in this swath?
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