On the map: radar-estimated hail around Pima County, AZ, the county with the most homes under 1″+ hail this day. Dots are storm reports. Zoom out for the rest of the day.
Radar-estimated hail
Storm reports for October 13, 2023
On October 13, 2023, 0 hail, 0 damaging-wind and 3 tornado reports were logged across 2 states.
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· As you type, the text is sent to Google to suggest addresses.IndependentNot affiliated with NOAA or the National Weather Service. Source: NOAA Storm Prediction Center storm reports; NOAA MRMS radar hail estimates (MESH) via the Iowa Environmental Mesonet; 2020 Census housing units. Data through November 6, 2026. Methodology
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On October 13, 2023, 0 hail, 0 damaging-wind and 3 tornado reports were logged across 2 states. Radar estimated hail of 1 inch or larger over 422 square miles containing about 5,700 homes.
Storm day runs 7 a.m. to 7 a.m. Eastern (12:00–12:00 UTC), the convention the Storm Prediction Center uses. Colored areas are NOAA MRMS radar estimates of the largest hail (MESH) over the day, lower 48 states only; radar overestimates and underestimates size, so read it with the ground reports.
Storm reports by state
| State | Hail | Wind | Tornado | Largest hail |
|---|---|---|---|---|
| IA | 0 | 0 | 2 | – |
| IL | 0 | 0 | 1 | – |
Cities with the largest radar-estimated hail
| City | Population | Radar max near center |
|---|---|---|
| Lake City, SC | 5,916 | 1.33″ |
| South Tucson, AZ | 4,535 | 0.84″ |
Counties by homes inside 1″+ radar-estimated hail
| County | Homes | People | Area | Radar max |
|---|---|---|---|---|
| Pima County, AZ | 5,415 | 10,504 | 34 mi² | 2.35″ |
| Williamsburg County, SC | 266 | 621 | 12 mi² | 2.74″ |
| Cochise County, AZ | 0 | 0 | 1 mi² | 1.18″ |
| Maricopa County, AZ | 0 | 0 | 25 mi² | 2.47″ |
| Yuma County, AZ | 0 | 0 | 345 mi² | 3.87″ |
| Florence County, SC | 0 | 0 | 3 mi² | 1.27″ |
Homes are 2020 Census housing units and people are 2020 Census residents, counted by block group where its center of population lies under radar-estimated hail of 1 inch or larger.
Damage, injuries and deaths
National Weather Service offices recorded about $1,000 in property damage and 1 injury from hail, thunderstorm wind and tornadoes across the US on this storm day (3 events in 2 states). Injuries and deaths are those the events caused directly.
| County | Events | Injuries | Deaths | Property damage |
|---|---|---|---|---|
| Brown County, IL | 1 | 1 | 0 | – |
| Jasper County, IA | 1 | 0 | 0 | $1,000 |
What the National Weather Service wrote
- Brown County, IL (near Gilbirds) · Tornado EF1 · 1 injury
“A very weak thunderstorm amidst a multicell cluster of showers produced a tornado that caused damage to a double-wide residence, its adjacent garage, and a carport behind the home. The home experienced some roof loss. Several trees on and around the property sustained damage.” - Jasper County, IA (near Newton Muni Arpt) · Tornado EF0 · $1,000
“A weak rotation captured on video near the Iowa Speedway. The weak circulation moved north across Interstate 80 and dissipated over East 36 street south of Iowa Speedway Drive. Very minor damage was done to the top of a building with a small section of tin removed.” - Webster County, IA (near Clare) · Tornado EF0
“Brief tornado captured on video northwest of Barnum, IA. The tornado remained in open rural farmland and did not impact any damage indicators, hence the EFU rating.”
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 October 13, 2023
National Weather Service survey teams mapped 3 tornado paths from this storm day (1 EF1, 1 EF0, 1 EFU), 1 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 |
|---|---|---|---|---|---|---|
| EF1 | 110 mph | 0.4 mi | 25 yd | 0 / 1 | 23:08–23:10 UTC | NWS St. Louis |
| EF0 | 65 mph | 0.6 mi | 80 yd | 0 / 0 | 21:09–21:12 UTC | NWS Des Moines |
| EFU | – | 0.2 mi | 25 yd | 0 / 0 | 19:12–19:13 UTC | NWS Des Moines |
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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