“AWOS station KSKF Kelly Field Airport. (EWX)”
— NOAA / SPC storm report
Hail in San Antonio · Aug 28, 2026
The estimated-size surface reached 0.75" aloft; NEXRAD logged no point detections over San Antonio that day. Open it on the live map to see the swath over the streets.
Convective day · Aug 28, 2026 · noon–noon UTC
Severity
The most severe storm San Antonio 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
- 19 /100
- Homes exposed
- 98 /100
- Ground truth
- 17 /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 San Antonio 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 Aug 28, 2026 — this storm produced no NEXRAD point detections over San Antonio, so there is one map to show, not two.
The storm in context
Where Aug 28, 2026 sits in San Antonio's hail record.
This was San Antonio's 9th recorded hail day, arriving 1 day after the Aug 27, 2026 storm. By severity it ranks 1st of the 9 storms we have logged here. Radar put the day's largest stone over San Antonio at 0.75" — radar-estimated size aloft.
The Aug 28, 2026 convective day was bigger than San Antonio: the same system put hail over 185 other tracked cities, 72 of them in Texas. Nearest: Von Ormy (10 miles south, up to 0.75"); Schertz (21 miles northeast, up to 0.5"); Hondo (30 miles west, up to 0.5").
These maps are stills. In the app this date is one of 9 San Antonio 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.
Wind reports
1 reportStorm forensics
How the storm moved
Read from the arrival times and locations of the NOAA ground reports, not a radar-measured storm track.
Reports came from Lackland Afb — beyond San Antonio itself.
Near the severe threshold
What 0.75" hail means for San Antonio roofs.
A signal this size sits near the National Weather Service severe threshold. Aging shingles and soft metals such as vents, flashing, and gutters may be more vulnerable; roof age, wind, and material condition all matter, and only an inspection can confirm damage.
Radar reading · not confirmed damage
Roofing exposure
What this storm is worth to a roofer.
Potential roof exposure
$964M
Potential roof exposure — 80,321 homes × the ~$12,000 industry-average hail roof claim. Exposure, not confirmed damage.
- Illustrative jobs
- 402 jobs
- Illustrative work
- ~$6M
Close just 0.5% of the 80,321 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 $16,867 on top of the $150 plan.
San Antonio hail history
Other storms in San Antonio.
Estimated-size surface Aug 27, 2026
0.5"
Estimated-size surface Jul 15, 2026
0.5"
Estimated-size surface Jul 13, 2026
0.75"
Estimated-size surface May 26, 2026
Estimated-size surface May 21, 2026
0.5"
Estimated-size surface May 10, 2026
1"
Estimated-size surface Mar 8, 2026
1"
Estimated-size surface Mar 7, 2026
1"Take your next area into the field.
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