Hail size 1"
5 E Tucson Pima County
“Report of quarter sized hail. (TWC)”
— NOAA / SPC storm report
/ Storm field report · Pima
Hail in Tucson · Aug 19, 2026
Hit 24 days ago
NEXRAD logged 0 hail signatures up to 0"; the estimated-size surface reached 1.5" aloft. Open it on the live map to see the swath over the streets.
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Peak hail signal 1.5" ≈ ping-pong ball · radar-estimated size aloft
Homes in the hail footprint 30,510
Ground reports 3 2 hail · 1 wind
Radar surfaces 2 NEXRAD + estimated size
Convective day · Aug 19, 2026 · noon–noon UTC
Severity
The 3rd most severe storm Tucson has seen in the last 12 months
Composite score · 5.2 / 10
Storm severity score
Overview's storm severity score weighs hailstone size, homes in the footprint, and ground-truth reports.
5.2 /10
- Peak hail signal
- 38 /100
- Homes exposed
- 90 /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 Tucson saw the hail — from two instruments
Aug 19, 2026 · Tucson, AZ
The maps here read the same storm from two angles — point detections from NEXRAD, and modeled hail size aloft. Where the two disagree is informative: it marks where estimated size outran the signatures, or trailed them.
NEXRAD radar signatures Surface resolved
Radar signature field Where NEXRAD flagged hail as the storm passed — point signatures from the radar, which indicate hail overhead rather than confirm what landed.
Max size
0"
Detections
0
Radar-estimated hail size Surface resolved
Estimated size field The modeled maximum hail size across the swath, derived from radar aloft — the largest stone the storm could have supported, which is not necessarily what reached the ground.
Max size
1.5"
The storm in context
Where Aug 19, 2026 sits in Tucson's hail record.
This was Tucson's 13th recorded hail day, arriving 9 days after the Aug 10, 2026 storm. By severity it ranks 3rd of the 16 storms we have logged here. Radar put the day's largest stone over Tucson at 1.5" — radar-estimated size aloft.
The Aug 19, 2026 convective day was bigger than Tucson: the same system put hail over 496 other tracked cities, 25 of them in Arizona. Nearest: Vail (27 miles southeast, up to 1.25"); Sahuarita (28 miles south, up to 0.75"); Mammoth (32 miles northeast, up to 0.75").
These maps are stills. In the app this date is one of 16 Tucson 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
3 reports filed with the NWS
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
2 reports Hail size 1"
5 E Tucson Pima County
“(TWC)”
— NOAA / SPC storm report
Wind reports
1 report Wind gust 63 mph
6 SW Tucson Pima County
“ASOS station KTUS Tucson International Airport. (TWC)”
— NOAA / SPC storm report
Storm forensics
How the storm moved
Timing and place names from NOAA ground reports
Read from the arrival times and locations of the NOAA ground reports, not a radar-measured storm track.
Hail was reported over 16 minutes, from to .
High damage potential
What 1.5" hail means for Tucson 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.
30,510 homes × $12,000 avg. claim
Potential roof exposure
$366M
Potential roof exposure — 30,510 homes × the ~$12,000 industry-average hail roof claim. Exposure, not confirmed damage.
- Illustrative jobs
- 153 jobs
- Illustrative work
- ~$2.3M
Close just 0.5% of the 30,510 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
August 2028
Claims from this storm can typically be filed until around August 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 $6,407 on top of the $150 plan.
Tucson hail history
Other storms in Tucson.
16 recorded storm days in Tucson, AZ
Map unavailable
NEXRAD surface Storm date Tucson / AZ
Aug 27, 2026
0.75" Estimated 0.75"
1 ground report Open report →
Estimated-size surface Storm date Tucson / AZ
Aug 23, 2026
0.75" Estimated 0.75"
No ground reports filed Open report →
Estimated-size surface Storm date Tucson / AZ
Aug 21, 2026
0.75" Estimated 0.75"
1 ground report Open report →
Estimated-size surface Storm date Tucson / AZ
Aug 10, 2026
1" Estimated 1"
3 ground reports Open report →
Estimated-size surface Storm date Tucson / AZ
Aug 9, 2026
0.5" Estimated 0.5"
1 ground report Open report →
Estimated-size surface Storm date Tucson / AZ
Aug 7, 2026
0.5" Estimated 0.5"
No ground reports filed Open report →
Estimated-size surface Storm date Tucson / AZ
Aug 5, 2026
1.75" Estimated 1.75"
3 ground reports Open report →
Estimated-size surface Storm date Tucson / AZ
Jul 27, 2026
No ground reports filed Open report →
Estimated-size surface Storm date Tucson / AZ
Jul 25, 2026
No ground reports filed Open report →
Estimated-size surface Storm date Tucson / AZ
Jul 17, 2026
0.5" Estimated 0.5"
No ground reports filed Open report →
Estimated-size surface Storm date Tucson / AZ
Jul 12, 2026
2.5" Signatures 2.5" Estimated 1.25"
4 ground reports Open report →
Estimated-size surface Storm date Tucson / AZ
Jul 11, 2026
1" Signatures 1" Estimated 0.75"
4 ground reports Open report →
Estimated-size surface Storm date Tucson / AZ
Jul 8, 2026
1.75" Signatures 1.75" Estimated 0.75"
1 ground report Open report →
Estimated-size surface Storm date Tucson / AZ
Jun 25, 2026
No ground reports filed Open report →
Estimated-size surface Storm date Tucson / AZ
Jun 17, 2026
1" Estimated 1"
No ground reports filed Open report →
Take your next area into the field.
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A storm day here is a convective day — it runs from noon to noon
UTC, so late-night hail is grouped with the afternoon storm that
spawned it rather than split across two calendar dates. Ground
reports are public-domain observations from the NOAA Storm
Prediction Center. Radar tells you where to look. Only an inspection confirms damage at an address. Last updated Aug 28, 2026.