On the map: every storm report logged this day.
On the map
Storm reports for April 17, 2018
On April 17, 2018, 3 hail, 2 damaging-wind and 0 tornado reports were logged across 2 states.
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On April 17, 2018, 3 hail, 2 damaging-wind and 0 tornado reports were logged across 2 states. The largest hail reported was 1.00″ (quarter size) in Webster County, IA.
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
| State | Hail | Wind | Tornado | Largest hail |
|---|---|---|---|---|
| IA | 3 | 0 | 0 | 1.00″ |
| KS | 0 | 2 | 0 | – |
Hail reports (3)
| Time (UTC) | Size | Location |
|---|---|---|
| 09:50 | 1.00″ | Webster County, IA |
| 10:00 | 1.00″ | Webster County, IA |
| 10:37 | 1.00″ | Hardin County, IA |
Damage, injuries and deaths
National Weather Service offices recorded 5 hail, wind or tornado events across the US on this storm day, with no damage estimate, injury or death entered. Injuries and deaths are those the events caused directly.
What the National Weather Service wrote
- Webster County, IA (near Judd) · Hail 1.00″
“Trained spotter reported nickel to quarter sized hail.” - Hardin County, IA (near Iowa Falls) · Hail 1.00″
“Trained spotter reported quarter sized hail.” - Webster County, IA (near Lehigh) · Hail 1.00″
“Public reported, via social media, up to quarter sized hail.”
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 April 17, 2018
National Weather Service survey teams mapped 1 tornado path from this storm day (1 EF2), 4 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.
| Rating | Peak wind | Path length | Max width | Deaths / injuries | On the ground | Surveyed by |
|---|---|---|---|---|---|---|
| EF2 | – | 4.4 mi | 650 yd | 0 / 0 | 12:18 UTC | NWS Lake Charles |
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.
Guides: What radar-estimated hail (MESH) is and isn't · Storm reports: preliminary vs final
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