Hail in San Mateo Jul 12, 2026
Hit 22 days agoNEXRAD caught this storm: 3 hail signatures up to 1". The radar-estimated size surface had no signal to model this day.
1"
≈ quarter · the largest NEXRAD radar signature898
0
none filedSan Mateo's only recorded storm in the last 12 months
Overview's storm severity score weighs hailstone size, homes in the footprint, and ground-truth reports.
- Hail size
- 25 /100
- Homes exposed
- 59 /100
- Ground truth
- 0 /100
Largest hailstone — the top predictor of roof damage.
How many homes sit inside the storm's footprint.
Independent storm reports filed with the NWS.
How San Mateo saw the hail — from two instruments
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.
Where NEXRAD flagged hail as the storm passed — point signatures from the radar, which indicate hail overhead rather than confirm what landed.
Only the NEXRAD radar-signature surface resolved for Jul 12, 2026 — the estimated-size swath had no hail signal to model for this storm, so there is one map to show, not two.
Where Jul 12, 2026 sits in San Mateo's hail record
This was San Mateo's 1st recorded hail day — the first hail day in our records for the city. By severity it ranks 1st of the 1 storms we have logged here. Radar put the day's largest stone over San Mateo at 1" — the largest NEXRAD radar signature.
The Jul 12, 2026 convective day was bigger than San Mateo: the same system put hail over 367 other tracked cities, 46 of them in Florida. Nearest: Fort Mc Coy (14 miles southwest, up to 1"); Saint Augustine (22 miles north, up to 1"); Flagler Beach (33 miles southeast, up to 0.75").
These maps are stills from San Mateo's Jul 12, 2026 storm. In the Overview app the same surfaces are live — radar updating in real time, radar-estimated hail size as it forms, and NWS spotter reports pinned where they're filed — with a radar replay you can scrub back over any past day.
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.
No ground reports were filed with the National Weather Service for this storm over San Mateo. That is common: a report depends on someone being there to see it and take the time to call it in. The radar surfaces above are the record here — the storm was detected from above even though no one on the ground logged it.
What 1" hail means for San Mateo roofs
Quarter-size and larger hail is where asphalt shingle damage starts in earnest: bruised mats and granule loss that homeowners can't see from the ground. Most people inside the footprint won't know their roof was hit until someone inspects it.
$11M
Potential roof exposure — 898 homes × the ~$12,000 industry-average hail roof claim. Exposure, not confirmed damage.Track hail over San Mateo on the live map
Radar updates in real time, spotter reports appear on the map as they're filed, and the full San Mateo storm history — this Jul 12, 2026 storm included — sits underneath. When you're ready, draw this storm's footprint and pull highly accurate homeowner contact information for every address inside it.
Highly accurate contact information starting at $0.23 per address — every contact included. Digital leads cost $15–$40. Start with a 7-day free trial — no credit card required. See pricing
1 recorded storm day in San Mateo, FL