Flagstaff, Arizona Hail Report and Map: October 21, 2026
Was there hail in Flagstaff, AZ on October 21, 2026? Radar estimated hail up to 1.04 inches inside the town limits of Flagstaff on October 21, 2026 (Eastern time). Radar estimates of at least 0.5 inch covered 20% of the town. Across the report area, the maximum radar estimate was 2.1 inches. The strongest part of the swath was about 84 miles southwest of Flagstaff, AZ.
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Hail estimates at a glance
| Storm date (Eastern time) | October 21, 2026 (Wednesday) |
|---|---|
| Maximum radar estimate across the area | 2.1 inches; strongest part of the swath about 84 miles southwest of Flagstaff, AZ |
| Maximum radar estimate inside Flagstaff | 1.04 inches |
| Share of Flagstaff with radar estimates of at least 0.5 inch | 20% |
| County coverage includes (0.5 inch or larger) | Yavapai County (586 sq mi), Coconino County (343 sq mi) and Maricopa County (20 sq mi) |
| Area with radar estimates of 0.5 inch or larger | about 946 square miles |
| Area with radar estimates of 1 inch or larger | about 127 square miles |
| Source | NOAA MRMS radar hail estimates (MESH) |
Which towns had hail on October 21, 2026?
Radar estimated hail of at least 0.5 inch inside these town limits, using U.S. Census boundaries. Each percentage is the share of town area with those estimates.
| Town | County | Maximum radar estimate inside town limits | Town area with estimates of at least 0.5 inch |
|---|---|---|---|
| Wickenburg, AZ | Maricopa County | 1.17 inches | 38% |
| Flagstaff, AZ | Coconino County | 1.04 inches | 20% |
| Congress, AZ | Yavapai County | 0.89 inch | 7% |
| Chino Valley, AZ | Yavapai County | 0.82 inch | 35% |
| Valle, AZ | Coconino County | 0.82 inch | 8% |
| Williamson, AZ | Yavapai County | 0.78 inch | 19% |
How big was the hail in Flagstaff?
Radar estimated hail up to 1.04 inches inside the town limits of Flagstaff. Among the listed towns, the highest estimate was 1.17 inches inside the limits of Wickenburg. A town's maximum isn't an estimate for every home. Check the swath for estimates around an address.
Data source and limits
We use NOAA's MRMS radar product MESH (Maximum Estimated Size of Hail) for hail-size estimates. Each town's figure is the maximum inside its Census town limits. The percentage is the town area with estimates of at least 0.5 inch. A town's maximum isn't an estimate for every home. Each storm date covers one calendar day in Eastern time. A late-evening storm west of the Eastern time zone can appear under two dates. Radar estimates don't confirm hail on the ground or roof damage. Hail of 0.5 to 0.75 inch can damage roofs, especially older roofs. An estimate below 1 inch doesn't rule out damage. Read how we calculate sizes and times.