“Dime to quarter size at AZ Ave and Elliot in Chandler. (PSR)”
— NOAA / SPC storm report
Hail in Mesa · Oct 20, 2026
The estimated-size surface reached 1.75" aloft; NEXRAD logged no point detections over Mesa that day. Open it on the live map to see the swath over the streets.
7-day free trial in the iPhone app. No card required to start.
For iPhone. Android coming soon.
Web trial: 7 days free. Card required. $150/month after the trial unless cancelled.
Convective day · Oct 20, 2026 · noon–noon UTC
Severity
The most severe storm Mesa has seen in the last 12 months
Overview's storm severity score weighs hailstone size, homes in the footprint, and ground-truth reports.
- Peak hail signal
- 44 /100
- Homes exposed
- 97 /100
- Ground truth
- 50 /100
Largest radar-indicated size — a signal of damage potential, not confirmation.
How many homes sit inside the storm's footprint.
Independent storm reports filed with the NWS.
Evidence / storm surfaces
How Mesa saw the hail — from two instruments
Each storm gets two readings: the radar signatures NEXRAD recorded as the cells passed overhead, and a modeled estimate of hail size in the air. They are independent surfaces, so a mismatch between them is expected — and worth reading.
Estimated size field Radar-estimated hail size over the swath. The model reports the biggest stone the storm could sustain in the air; what actually fell may have been smaller.
Only the radar-estimated size surface resolved for Oct 20, 2026 — this storm produced no NEXRAD point detections over Mesa, so there is one map to show, not two.
The storm in context
Where Oct 20, 2026 sits in Mesa's hail record.
This was Mesa's 3rd recorded hail day, arriving 34 days after the Sep 16, 2026 storm. By severity it ranks 1st of the 3 storms we have logged here. Radar put the day's largest stone over Mesa at 1.75" — radar-estimated size aloft.
The Oct 20, 2026 convective day was bigger than Mesa: the same system put hail over 19 other tracked cities, 18 of them in Arizona. Nearest: Chandler (14 miles southwest, up to 1.25"); Fort Mcdowell (21 miles northeast, up to 2"); Laveen (25 miles southwest, up to 1.25").
These maps are stills. In the app this date is one of 3 Mesa storm dates on a live map — both surfaces, the reports, and a replay — and the same map is where you draw the swath. This page rebuilds nightly.
Ground reports
What people on the ground reported
These are storm reports filed with the National Weather Service and released through the NOAA Storm Prediction Center — public-domain observations from spotters, the public, and NWS surveys. We quote each one exactly as filed.
Hail reports
3 reports“Photo of measured 1-inch hail stone. (PSR)”
— NOAA / SPC storm report
“Photo of a pile of hail stones with diameters around 1-2 inches. (PSR)”
— NOAA / SPC storm report
Storm forensics
How the storm moved
Read from the arrival times and locations of the NOAA ground reports, not a radar-measured storm track.
Hail was reported over 15 minutes, from to .
Reports came from Gilbert — beyond Mesa itself.
High damage potential
What 1.75" hail means for Mesa roofs.
Hail around an inch and a half is capable of cracking shingles, stripping granules, and denting gutters, vents, and siding. Risk is usually greatest near the strongest radar signal, but property-level damage still requires an on-site inspection.
Radar reading · not confirmed damage
Roofing exposure
What this storm is worth to a roofer.
Potential roof exposure
$893M
Potential roof exposure — 74,425 homes × the ~$12,000 industry-average hail roof claim. Exposure, not confirmed damage.
- Illustrative jobs
- 372 jobs
- Illustrative work
- ~$5.6M
Close just 0.5% of the 74,425 homes in this footprint at the average $15,000 roof job. Illustrative math, not a projection — your results depend on your outreach and how the market responds.
Claim window
October 2028
Claims from this storm can typically be filed until around October 2028 — the window to reach these homeowners while it's still open. Deadlines vary by policy and state.
Names and phones for every home in the footprint: at most $15,629 on top of the $150 plan.
The next storm won’t wait for you.
Set your territory and alerts today. When hail hits, use Overview to choose your streets and get moving.
Web trial: 7 days free. Card required. $150/month after the trial unless cancelled.