On the map: radar-estimated hail around Polk County, IA, 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 1, 2019
On October 1, 2019, 14 hail, 24 damaging-wind and 4 tornado reports were logged across 6 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
← Sep 30, 2019 All 2019 storm days · October 2019 Oct 2, 2019 →
On October 1, 2019, 14 hail, 24 damaging-wind and 4 tornado reports were logged across 6 states. The largest hail reported was 2.75″ (baseball size) in Polk County, IA. Radar estimated hail of 1 inch or larger over 188 square miles containing about 11,000 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 | 11 | 3 | 2 | 2.75″ |
| WI | 1 | 6 | 2 | 1.00″ |
| KS | 0 | 8 | 0 | – |
| NY | 2 | 2 | 0 | 2.00″ |
| MI | 0 | 4 | 0 | – |
| IL | 0 | 1 | 0 | – |
Cities with the largest radar-estimated hail
| City | Population | Radar max near center |
|---|---|---|
| Shenandoah, IA | 4,878 | 1.60″ |
| Norwalk, IA | 15,396 | 1.56″ |
| Concordia, KS | 4,926 | 1.35″ |
| Edgerton, WI | 6,138 | 1.12″ |
| Newton, IA | 15,709 | 1.07″ |
| Waterloo, IA | 67,477 | 1.03″ |
| Waunakee, WI | 16,363 | 0.95″ |
| Evansdale, IA | 4,515 | 0.94″ |
| Maquoketa, IA | 6,064 | 0.93″ |
| Lomira, WI | 2,671 | 0.93″ |
| Evansville, WI | 5,819 | 0.92″ |
| Massena, NY | 9,998 | 0.90″ |
| Cross Plains, WI | 4,180 | 0.89″ |
| Des Moines, IA | 213,096 | 0.87″ |
| Waukon, IA | 3,799 | 0.86″ |
| Creston, IA | 7,421 | 0.82″ |
| Whitewater, WI | 16,076 | 0.81″ |
| Independence, IA | 6,266 | 0.81″ |
Counties by homes inside 1″+ radar-estimated hail
| County | Homes | People | Area | Radar max |
|---|---|---|---|---|
| Polk County, IA | 2,932 | 7,289 | 2 mi² | 1.27″ |
| Warren County, IA | 2,317 | 5,702 | 11 mi² | 2.25″ |
| Cloud County, KS | 1,503 | 3,177 | 5 mi² | 1.41″ |
| Page County, IA | 1,298 | 2,545 | 10 mi² | 1.65″ |
| Rock County, WI | 885 | 2,115 | 5 mi² | 1.40″ |
| Benton County, IA | 790 | 1,873 | 17 mi² | 1.87″ |
| Fremont County, IA | 610 | 1,240 | 8 mi² | 1.72″ |
| Jasper County, IA | 413 | 966 | 9 mi² | 1.70″ |
| Jo Daviess County, IL | 0 | 0 | 1 mi² | 1.23″ |
| Adair County, IA | 0 | 0 | 25 mi² | 2.54″ |
| Adams County, IA | 0 | 0 | 5 mi² | 1.78″ |
| Allamakee County, IA | 0 | 0 | 4 mi² | 1.29″ |
| Dubuque County, IA | 0 | 0 | 1 mi² | 1.13″ |
| Linn County, IA | 0 | 0 | 2 mi² | 1.27″ |
| Madison County, IA | 0 | 0 | 3 mi² | 1.24″ |
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.
Hail reports (14)
| Time (UTC) | Size | Location |
|---|---|---|
| 22:32 | 2.75″ | Polk County, IA |
| 22:30 | 2.50″ | Polk County, IA |
| 17:53 | 2.00″ | St. Lawrence County, NY |
| 21:12 | 1.75″ | Adair County, IA |
| 22:27 | 1.75″ | Polk County, IA |
| 21:33 | 1.50″ | Madison County, IA |
| 22:32 | 1.50″ | Polk County, IA |
| 22:31 | 1.25″ | Polk County, IA |
| 16:37 | 1.00″ | Rock County, WI |
| 17:49 | 1.00″ | St. Lawrence County, NY |
| 21:05 | 1.00″ | Adair County, IA |
| 22:32 | 1.00″ | Polk County, IA |
| 22:34 | 1.00″ | Polk County, IA |
| 22:54 | 0.75″ | Black Hawk County, IA |
Damage, injuries and deaths
National Weather Service offices recorded about $668,000 in property damage and $11,000 in crop damage from hail, thunderstorm wind and tornadoes across the US on this storm day (43 events in 6 states). Injuries and deaths are those the events caused directly.
| County | Events | Injuries | Deaths | Property damage |
|---|---|---|---|---|
| Polk County, IA | 5 | 0 | 0 | $415,000 |
| Lafayette County, WI | 2 | 0 | 0 | $105,000 |
| Dane County, WI | 1 | 0 | 0 | $50,000 |
| Taylor County, IA | 1 | 0 | 0 | $25,000 |
| Montcalm County, MI | 1 | 0 | 0 | $25,000 |
| Grant County, WI | 1 | 0 | 0 | $15,000 |
| Green County, WI | 1 | 0 | 0 | $10,000 |
| Iowa County, WI | 1 | 0 | 0 | $10,000 |
| Tuscola County, MI | 1 | 0 | 0 | $5,000 |
| Niagara County, NY | 2 | 0 | 0 | $4,000 |
| Adair County, IA | 1 | 0 | 0 | $2,000 |
| Madison County, IA | 1 | 0 | 0 | $2,000 |
What the National Weather Service wrote
- Polk County, IA (near Des Moines) · Hail 2.75″ · $250,000
“Public reported baseball sized hail via picture from social media.” - Lafayette County, WI (near Calamine) · Thunderstorm wind 94 mph · $100,000
“A swath of snapped and uprooted trees and flattened corn. Some structural damage to homes and farm buildings. A large tree limb fell on a truck.” - Polk County, IA (near (Dsm)Des Moines Intl) · Hail 2.50″ · $100,000
“WHO TV relayed tennis ball sized hail report. Time estimated from radar.” - Dane County, WI (near Montrose) · Thunderstorm wind 81 mph · $50,000
“A swath of tree damage and corn damage from straight-line winds. Many trees snapped and uprooted in Belleville with some fallen on homes. A construction trailer was rolled.” - Taylor County, IA (near Bedford Arpt) · Thunderstorm wind 70 mph · $25,000
“Trained spotter reported 3 or 4 large trees uprooted, including one that fell on the spotter's house. They also noted several other tree limbs down throughout the neighborhood. Time estimated from radar.” - Montcalm County, MI (near Howard City) · Thunderstorm wind 60 mph · $25,000
“An isolated severe storm produced high winds that blew several six to eight inch diameter trees down onto a barn near Howard City. Evergreen township was particularly hard hit with numerous trees down. Over seven thousand people in Montcalm county lost power.”
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 1, 2019
National Weather Service survey teams mapped 2 tornado paths from this storm day (1 EF1, 1 EF0), 20 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 | 100 mph | 13.0 mi | 100 yd | 0 / 0 | 02:42–02:56 UTC | NWS Milwaukee |
| EF0 | 80 mph | 7.2 mi | 70 yd | 0 / 0 | 02:25–02:34 UTC | NWS Milwaukee |
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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