Recorded events
Hail and wind recorded near Yorba Linda
Hail is not common here, which is exactly why the days it has happened are worth writing down. Within ten miles of Yorba Linda, on one day: 19 March 2024.
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What the radar recorded
The most recent detection was on 19 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 5.1 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 |
|---|---|---|---|
| 19 March 2024 | 0.5 in | 5.1 mi | 7 |
The wind record
Over 5 years of daily records at this location, the highest modelled gust was about 55 mph, below the 58 mph severe threshold but well into the range that finds anything already lifted or loose. There were 21 days above 39 mph and 7 above 45 mph in that period, concentrated in January, February, and November.
| Date | Peak gust |
|---|---|
| 6 November 2024 | 55 mph |
| 14 March 2024 | 45 mph |
| 20 November 2023 | 46 mph |
| 21 March 2023 | 45 mph |
| 25 February 2023 | 46 mph |
| 8 November 2022 | 46 mph |
| 14 December 2021 | 51 mph |
| 24 November 2021 | 44 mph |
What to check afterwards
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.
Inside, before outside
The underside of the deck is the most honest surface on the whole house. It shows water that has not yet reached a ceiling, and it tells you roughly how long the water has been arriving.
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.
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.
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.
About this data
Hail detections come from NOAA NCEI’s Severe Weather Data Inventory (NEXRAD product nx3hail) within 10 miles of Yorba Linda. 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.
Questions after a storm
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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