National Storms

On the map: every storm report logged this day.

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HailWindTornado

2018 storm days

Storm reports for September 17, 2018

On September 17, 2018, 10 hail, 29 damaging-wind and 11 tornado reports were logged across 10 states.

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10hail reports
29damaging-wind reports
11tornado reports
1.75″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

← Sep 16, 2018 All 2018 storm days · September 2018 Sep 18, 2018 →

Other storms on September 17 →

On September 17, 2018, 10 hail, 29 damaging-wind and 11 tornado reports were logged across 10 states. The largest hail reported was 1.75″ (golf ball size) in Hamlin County, SD. Tornadoes killed 1.

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
VA0511–
MN5501.50″
WI090–
NC040–
SD1201.75″
NE2101.25″
IA1101.00″
LA1001.00″
NJ010–
MD010–

Cities with hail reported within 5 miles

CityPopulationLargest report
Marshall, MN13,9961.50″
Forest City, IA4,1991.00″
Winona, MN26,1730.75″
Goodview, MN4,0880.75″

Hail reports (10)

Time (UTC)SizeLocation
10:001.75″Hamlin County, SD
10:201.50″Lyon County, MN
01:251.25″Thomas County, NE
10:161.25″Lyon County, MN
20:121.00″Hancock County, IA
20:581.00″Terrebonne Parish, LA
01:281.00″Thomas County, NE
08:371.00″Winona County, MN
10:140.88″Lyon County, MN
21:110.75″Winona County, MN

Damage, injuries and deaths

National Weather Service offices recorded about $1.2 million in property damage, 1 injury and 1 death from hail, thunderstorm wind and tornadoes across the US on this storm day (50 events in 10 states). Injuries and deaths are those the events caused directly.

CountyEventsInjuriesDeathsProperty damage
Chesterfield County, VA311$1 million
Richmond city, VA500$35,000
Jackson County, WI300$23,000
Hancock County, IA100$20,000
Hanover County, VA100$20,000
Mecklenburg County, VA100$20,000
Winona County, MN200$15,000
Henrico County, VA100$10,000
Dodge County, MN200$6,000
Union County, NJ100$5,000
Brown County, WI100$5,000
Powhatan County, VA100$3,000

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 September 17, 2018

National Weather Service survey teams mapped 19 tornado paths from this storm day (1 EF2, 5 EF1, 13 EF0), 34 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
EF2–0.7 mi–0 / 019:44–19:45 UTCNWS Wakefield
EF1–2.6 mi–0 / 019:37–19:40 UTCNWS Wakefield
EF1–0.6 mi–0 / 019:42–19:44 UTCNWS Wakefield
EF1–0.5 mi–0 / 019:45–19:47 UTCNWS Wakefield
EF1–0.4 mi–0 / 018:58–19:02 UTCNWS Wakefield
EF1–0.4 mi–0 / 017:33–17:36 UTCNWS Wakefield
EF0–9.1 mi150 yd0 / 014:35–14:50 UTCNWS Wakefield
EF0–5.6 mi–0 / 018:46–18:58 UTCNWS Wakefield
EF0–2.9 mi–0 / 019:02–19:08 UTCNWS Wakefield
EF085 mph2.9 mi100 yd0 / 019:35–13:15 UTCNWS Wakefield
EF0–1.9 mi–0 / 019:32–19:37 UTCNWS Wakefield
EF0–1.7 mi75 yd0 / 020:14–20:16 UTCNWS Wakefield
EF075 mph1.4 mi75 yd0 / 020:23–20:26 UTCNWS Wakefield
EF080 mph1.1 mi75 yd0 / 019:57–20:00 UTCNWS Wakefield
EF0–0.6 mi–0 / 019:40–19:42 UTCNWS Wakefield
EF0–0.6 mi100 yd0 / 019:59–20:01 UTCNWS Wakefield
EF0–0.3 mi–0 / 017:36–17:38 UTCNWS Wakefield
EF075 mph0.3 mi75 yd0 / 020:05 UTCNWS Wakefield
EF0–0.1 mi–0 / 020:26–20:27 UTCNWS Wakefield

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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