Recorded events
Hail and wind recorded near Tustin
Radar has picked up hail-bearing storm cells within ten miles of Tustin on two days: 18 March 2024 and 5 October 2021. Here is what was recorded, and what is worth checking as a result.
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Hail
The most recent detection was on 18 March 2024, about 3 years ago. Radar sized the largest stone in that cell at about 0.5 inches, small, and unlikely on its own to have marked a sound roof. The nearest cell was about 7.6 miles away, which is close enough to be worth checking and far enough that it may have missed the house entirely.
| Date | Largest stone sized by radar | Nearest cell | Cells that day |
|---|---|---|---|
| 18 March 2024 | 0.5 in | 7.6 mi | 4 |
| 5 October 2021 | 1.0 in | 8.3 mi | 2 |
The wind record
Over 5 years of daily records at this location, the highest modelled gust was about 57 mph, below the 58 mph severe threshold but well into the range that finds anything already lifted or loose. There were 27 days above 39 mph and 9 above 45 mph in that period, concentrated in February, March, and November.
| Date | Peak gust |
|---|---|
| 8 January 2025 | 46 mph |
| 6 November 2024 | 57 mph |
| 14 March 2024 | 55 mph |
| 20 November 2023 | 46 mph |
| 29 October 2023 | 50 mph |
| 25 February 2023 | 51 mph |
| 14 December 2021 | 45 mph |
| 11 October 2021 | 46 mph |
What to look at after a storm
The ridge and the edges
Ridge caps sitting proud, a line of shingles along the rake that no longer lies flat, a lifted starter course at the eave: these are wind signatures, and each one is an opening for the next storm rather than a cosmetic complaint.
What the street is doing
If several roofs on the street are being worked on and yours is the same age and the same covering, that is a reason to have yours looked at. It is not a reason to assume you have damage, and a contractor who tells you the whole street is getting a new roof paid for by insurance is telling you something about themselves.
Flashing, chimneys and skylights
Penetrations are where a roof is joined rather than laid, and joins fail first. After a wind event they are the first thing worth having looked at properly.
What landed on it
A branch across the roof does damage twice: once on impact and once by sitting there holding water against the covering. Get it off, photograph where it was, and look at what is underneath before deciding it was nothing.
The soft metal, first
Start with the parts that bruise easily: gutter faces, downspouts, vent hoods, the aluminium trim. They are the network of soft targets around the roof, and they record a hail event more legibly than the shingles do. Clean metal is meaningful evidence.
Where these numbers come from
Hail detections come from NOAA NCEI’s Severe Weather Data Inventory (NEXRAD product nx3hail) within 10 miles of Tustin. Radar sizes hail in a storm cell; it does not observe what landed on any particular roof. Gust figures are daily maxima from the ERA5 reanalysis archive at this city’s coordinates, which is a model of the weather rather than a reading from an instrument in the neighbourhood. Both are useful for dates and for scale, and neither is evidence about your roof. Last refreshed 2026-08-31.
Storm damage questions
There was a storm near me. Do I have damage?
There is no way to know from the weather record, and this site does not claim otherwise. Two houses on one street come out of the same night in completely different condition. What a nearby storm gives you is a date and a reason to look — starting with the gutters and vent caps, which dent before shingles mark.
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