On the map: radar-estimated hail around Maricopa 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 21, 2026
On October 21, 2026, 11 hail, 10 damaging-wind and 3 tornado reports were logged across 5 states.
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On October 21, 2026, about 164,000 homes were inside radar-estimated hail of 1 inch or larger across 6 counties; the most were in Maricopa County, AZ (about 148,000).
- About 148,000 homes in Maricopa County, AZ, were inside radar-estimated hail of 1 inch or larger on October 21, 2026. Swath image
Homes are 2020 Census housing units in block groups whose center of population lay inside NOAA MRMS radar-estimated hail (MESH) of 1 inch or larger during the storm day (7 a.m. to 7 a.m. Eastern). These are radar estimates of hail size, not damage counts. More same-day numbers
Cite: National Storms. “Storm reports for October 21, 2026.” https://nationalstorms.com/storms/2026-10-21/. Data through November 6, 2026. License: CC BY 4.0.
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 21, 2026, 11 hail, 10 damaging-wind and 3 tornado reports were logged across 5 states. The largest hail reported was 2.00″ (hen egg size) 4 miles NE of Glendale, AZ. Radar estimated hail of 1 inch or larger over 1,569 square miles containing about 160,000 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 |
|---|---|---|---|---|
| AZ | 8 | 8 | 3 | 2.00″ |
| CA | 0 | 2 | 0 | – |
| UT | 1 | 0 | 0 | 1.75″ |
| NV | 1 | 0 | 0 | 1.75″ |
| NM | 1 | 0 | 0 | 1.50″ |
Cities with the largest radar-estimated hail
| City | Population | Radar max near center |
|---|---|---|
| Glendale, AZ | 258,143 | 2.98″ |
| Phoenix, AZ | 1,673,164 | 2.75″ |
| Mesquite, NV | 23,599 | 1.95″ |
| Holbrook, AZ | 4,837 | 1.69″ |
| Star Valley, AZ | 2,547 | 1.69″ |
| Carefree, AZ | 3,657 | 1.68″ |
| Tolleson, AZ | 9,353 | 1.44″ |
| Ivins, UT | 11,108 | 1.31″ |
| Payson, AZ | 16,762 | 1.23″ |
| Santa Clara, UT | 8,631 | 0.99″ |
| Flagstaff, AZ | 77,539 | 0.93″ |
| Wickenburg, AZ | 8,301 | 0.82″ |
| Superior, AZ | 2,682 | 0.81″ |
| Hurricane, UT | 24,753 | 0.75″ |
Counties by homes inside 1″+ radar-estimated hail
| County | Homes | People | Area | Radar max |
|---|---|---|---|---|
| Maricopa County, AZ | 148,009 | 404,013 | 178 mi² | 2.98″ |
| Gila County, AZ | 6,838 | 8,472 | 253 mi² | 2.55″ |
| Clark County, NV | 3,948 | 7,014 | 67 mi² | 2.84″ |
| Navajo County, AZ | 3,237 | 7,550 | 139 mi² | 2.73″ |
| Yavapai County, AZ | 1,268 | 1,720 | 88 mi² | 2.10″ |
| Graham County, AZ | 590 | 2,443 | 234 mi² | 2.94″ |
| Apache County, AZ | 0 | 0 | 153 mi² | 2.99″ |
| Cochise County, AZ | 0 | 0 | 2 mi² | 1.29″ |
| Coconino County, AZ | 0 | 0 | 144 mi² | 1.78″ |
| Mohave County, AZ | 0 | 0 | 37 mi² | 2.23″ |
| Pinal County, AZ | 0 | 0 | 2 mi² | 1.20″ |
| Penobscot County, ME | 0 | 0 | 0 mi² | 1.12″ |
| York County, ME | 0 | 0 | 4 mi² | 2.01″ |
| Lincoln County, NV | 0 | 0 | 59 mi² | 2.94″ |
| Carroll County, NH | 0 | 0 | 0 mi² | 1.44″ |
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 (11)
| Time (UTC) | Size | Location |
|---|---|---|
| 22:34 | 2.00″ | 4 mi NE of Glendale, AZ |
| 16:43 | 1.75″ | 2 mi WSW of Downtown Flagstaf, AZ |
| 17:43 | 1.75″ | 2 mi WSW of Downtown Flagstaf, AZ |
| 23:09 | 1.75″ | 5 mi SW of Rockville, UT |
| 05:00 | 1.75″ | 4 mi NW of Mesquite, NV |
| 16:18 | 1.50″ | 2 mi NW of Downtown Flagstaff, AZ |
| 23:20 | 1.50″ | 6 mi E of Prewitt, NM |
| 17:08 | 1.00″ | 1 mi N of Downtown Flagstaff, AZ |
| 22:38 | 1.00″ | 2 mi NW of Show Low, AZ |
| 23:56 | 1.00″ | 10 mi S of Safford, AZ |
| 00:34 | 1.00″ | 2 mi ESE of Punkin Center, AZ |
Damage, injuries and deaths
NOAA's Storm Events database, which records damage and casualties, runs through July 31, 2026. NCEI adds each month about three to four months after it ends; this day will show here then.
NWS Tornado Damage Surveys for October 21, 2026
National Weather Service survey teams mapped 3 tornado paths from this storm day (3 EF1), 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 | 110 mph | 9.3 mi | 350 yd | 0 / 1 | 01:59–02:10 UTC | NWS Flagstaff |
| EF1 | 105 mph | 8.0 mi | 300 yd | 0 / 0 | 14:32–14:46 UTC | NWS Flagstaff |
| EF1 | 110 mph | 2.3 mi | 600 yd | 0 / 0 | 12:41–12:47 UTC | NWS Flagstaff |
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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