National Storms

On the map: every storm report logged this day.

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HailWindTornado

2018 storm days

Storm reports for August 27, 2018

On August 27, 2018, 62 hail, 106 damaging-wind and 3 tornado reports were logged across 10 states.

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62hail reports
106damaging-wind reports
3tornado reports
3.50″largest hail reported

IndependentNot affiliated with NOAA or the National Weather Service. Source: NOAA Storm Prediction Center storm reports. Data through November 6, 2026. Methodology

← Aug 26, 2018 All 2018 storm days · August 2018 Aug 28, 2018 →

Other storms on August 27 →

On August 27, 2018, 62 hail, 106 damaging-wind and 3 tornado reports were logged across 10 states. The largest hail reported was 3.50″ (teacup size) in Lyman County, SD.

Storm day runs 7 a.m. to 7 a.m. Eastern (12:00–12:00 UTC), the convention the Storm Prediction Center uses. Radar hail estimates start October 2019.

Storm reports by state

StateHailWindTornadoLargest hail
WI0621–
SD28103.50″
MN42121.25″
IA17003.00″
MI0170–
ND5002.00″
NE5001.75″
TX1300.88″
FL1200.75″
VA1000.75″

Cities with hail reported within 5 miles

CityPopulationLargest report
Sioux Falls, SD209,2891.75″
Orange City, IA6,5471.50″
Cherokee, IA5,1861.50″
Brandon, SD10,8371.00″
Horace, ND6,2861.00″
Rock Valley, IA4,0241.00″
Odessa, TX119,7480.88″
Fargo, ND136,2850.75″
Bradenton, FL58,1840.75″
West Fargo, ND41,0270.75″
Longboat Key, FL7,4630.75″

Hail reports (62)

Time (UTC)SizeLocation
00:553.50″Lyman County, SD
11:383.00″Palo Alto County, IA
11:582.75″Pocahontas County, IA
10:522.50″O'Brien County, IA
01:202.00″Cass County, ND
13:301.75″Brown County, SD
19:291.75″Dixon County, NE
19:381.75″Dixon County, NE
20:391.75″Sioux County, IA
22:371.75″Pennington County, SD
22:441.75″Haakon County, SD
00:561.75″Lyman County, SD
01:361.75″Cass County, ND
06:001.75″Hutchinson County, SD
06:151.75″Hutchinson County, SD
07:051.75″Minnehaha County, SD
07:121.75″Minnehaha County, SD
07:221.75″Minnehaha County, SD
07:231.75″Minnehaha County, SD
11:191.75″Clay County, IA
11:201.75″Clay County, IA
07:151.50″Minnehaha County, SD
07:201.50″Minnehaha County, SD
10:151.50″Sioux County, IA
11:201.50″Cherokee County, IA
20:391.25″Sioux County, IA
20:511.25″O'Brien County, IA
21:051.25″Stearns County, MN
07:121.25″Minnehaha County, SD
07:201.25″Minnehaha County, SD
08:391.25″Turner County, SD
20:301.00″Clay County, IA
20:331.00″Sioux County, IA
20:451.00″Pope County, MN
23:101.00″Haakon County, SD
23:421.00″Haakon County, SD
00:061.00″Jones County, SD
00:301.00″Custer County, NE
00:371.00″Custer County, NE
00:471.00″Custer County, NE
01:031.00″Barnes County, ND
02:151.00″Cass County, ND
02:351.00″Clay County, MN
02:471.00″Becker County, MN
07:141.00″Minnehaha County, SD
07:191.00″Minnehaha County, SD
07:261.00″Minnehaha County, SD
07:391.00″Charles Mix County, SD
07:401.00″Charles Mix County, SD
08:301.00″McCook County, SD
09:361.00″Sioux County, IA
11:141.00″Cherokee County, IA
23:270.88″Haakon County, SD
23:300.88″Haakon County, SD
00:240.88″Ector County, TX
08:160.88″Bon Homme County, SD
09:370.88″Sioux County, IA
20:480.75″Sioux County, IA
21:140.75″Warren County, VA
21:540.75″Manatee County, FL
02:120.75″Cass County, ND
10:480.75″O'Brien County, IA

Damage, injuries and deaths

National Weather Service offices recorded about $1.9 million in property damage and 1 injury from hail, thunderstorm wind and tornadoes across the US on this storm day (172 events in 10 states). Injuries and deaths are those the events caused directly.

CountyEventsInjuriesDeathsProperty damage
Otsego County, MI110$1.2 million
Goodhue County, MN100$300,000
Monroe County, WI400$70,000
Sarasota County, FL100$50,000
Palo Alto County, IA100$50,000
Houghton County, MI400$47,000
Jackson County, WI300$38,000
Antrim County, MI100$28,000
Pocahontas County, IA100$20,000
Roscommon County, MI100$20,000
Allegan County, MI100$10,000
Grand Traverse County, MI100$10,000

What the National Weather Service wrote

Event narratives from NWS Storm Data, shortened. Up to six per day, chosen by deaths, injuries, damage and size.

Source: NOAA National Centers for Environmental Information (NCEI), Storm Events Database, as entered by National Weather Service offices; data through July 31, 2026. Damage is in dollars of the year, not adjusted for inflation.

NWS Tornado Damage Surveys for August 27, 2018

National Weather Service survey teams mapped 3 tornado paths from this storm day (1 EF1, 2 EF0), 10 miles in all. The map above draws each surveyed path as the NWS mapped it, colored by the EF rating of each stretch, in place of the straight start-to-end line.

RatingPeak windPath lengthMax widthDeaths / injuriesOn the groundSurveyed by
EF1100 mph5.1 mi150 yd0 / 016:52–16:52 UTCNWS La Crosse
EF070 mph2.3 mi100 yd0 / 022:17–22:21 UTCNWS Twin Cities
EF085 mph2.2 mi150 yd0 / 022:37–22:42 UTCNWS Twin Cities

Source: NOAA National Weather Service Damage Assessment Toolkit (DAT): the tornado paths and EF-rating zones NWS survey teams mapped after each storm. Survey data are preliminary and can be revised; NOAA's official record is Storm Data (NCEI). Paths are simplified to about 30 m. Times are when the tornado was on the ground, in UTC.

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