- Reports of 1″+
- 20
- Largest stone
- 2″
- Reports of 2″+
- 2
- Days
- 2
Where and when the hail fell
Tuesday, October 20
From 10:10 PM to 10:25 PM MST, 4 reports of hail 1 inch or larger came in from Gilbert and Mesa. The largest, 2″ (hen egg size), was reported 3 mi ENE of Mesa.
| Time (MST) | Hail | Where |
|---|---|---|
| 10:10 PM | 1″ quarter | 3 mi W of Gilbert |
| 10:10 PM | 1″ quarter | 3 mi SW of Mesa |
| 10:22 PM | 1″ quarter | 3 mi ENE of Mesa |
| 10:25 PM | 2″ hen egg | 3 mi ENE of Mesa |
Wednesday, October 21
From 3:25 PM to 3:45 PM MST, 16 reports of hail 1 inch or larger came in from Glendale, Peoria and Deer Valley. The largest, 2″ (hen egg size), was reported 4 mi NE of Glendale.
| Time (MST) | Hail | Where |
|---|---|---|
| 3:25 PM | 1″ quarter | 5 mi NE of Glendale |
| 3:25 PM | 1″ quarter | 4 mi ENE of Peoria |
| 3:30 PM | 1.25″ half dollar | 6 mi SSE of Deer Valley |
| 3:30 PM | 1.25″ half dollar | 5 mi SSW of Deer Valley |
| 3:30 PM | 1.75″ golf ball | 4 mi SSE of Deer Valley |
| 3:32 PM | 1″ quarter | 2 mi NE of Glendale |
| 3:32 PM | 1.5″ ping pong ball | 4 mi NE of Glendale |
| 3:34 PM | 2″ hen egg | 4 mi NE of Glendale |
| 3:35 PM | 1.5″ ping pong ball | 4 mi S of Deer Valley |
| 3:40 PM | 1.25″ half dollar | 3 mi SE of Deer Valley |
| 3:40 PM | 1″ quarter | 3 mi ESE of Deer Valley |
| 3:40 PM | 1.25″ half dollar | 3 mi ENE of Deer Valley |
| 3:42 PM | 1.75″ golf ball | 4 mi E of Deer Valley |
| 3:43 PM | 1″ quarter | 5 mi SE of Deer Valley |
| 3:45 PM | 1.75″ golf ball | 5 mi E of Deer Valley |
| 3:45 PM | 1.5″ ping pong ball | 5 mi ENE of Deer Valley |
What people on the ground reported
- Gilbert, Oct 20, 10:10 PM: “Dime to quarter size at AZ Ave and Elliot in Chandler.”
- Mesa, Oct 20, 10:22 PM: “Photo of measured 1-inch hail stone.”
- Mesa, Oct 20, 10:25 PM: “Photo of a pile of hail stones with diameters around 1-2 inches.”
- Glendale, Oct 21, 3:34 PM: “Photo of a few hail stones with the largest estimated at 2 inches in diameter.”
- Deer Valley, Oct 21, 3:40 PM: “Photo of multiple hail stones next to a tape measure with the largest stone around 1.25 inches.”
Each row is one report: a trained spotter, a member of the public or a weather app user giving a stone size at a point. Reports are where someone was standing, so the hail swath between and around them is wider than the list.
What 1-inch hail does to a roof
One inch, quarter size, is where the National Weather Service starts calling hail severe, and it is about where roof damage begins. On asphalt shingles it shows as bruises and lost granules that are hard to see from the street; concrete and clay tile can crack, and metal roofs and gutters dent. Stones of 2 inches and more, like the largest ones in this storm, can break shingles and tiles outright.
Damage that cannot be seen from the ground is why homeowners in a hail path often do not know they have a claim. Insurance policies set their own deadline for reporting storm damage, so an inspection soon after the storm is worth more than one next season.
Source
Every report on this page is from the NOAA Storm Prediction Center, local storm reports, read on October 26, 2026. They are preliminary: the National Weather Service can correct a report or add a late one, and this page is redrawn when it does. A report that corrects an earlier one replaces it here, so a stone is counted once. Only reports of 1 inch and larger in Maricopa and Pinal Counties are included.