Alert archive / California / Winter Storm Warnings in 2025
Winter Storm Warning 4, NWS San Diego, CA
NWS San Diego, CA issued this winter storm warning at Nov 20, 2025, 2:22 AM PST for Riverside County, San Bernardino County, California. It took effect at Nov 20, 2025, 4:00 PM PST. It was in force for 42 hr. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Nov 20, 2025, 2:22 AM PST (10:22 UTC)
- In effect from
- Nov 20, 2025, 4:00 PM PST
- Expired
- Nov 22, 2025, 9:59 AM PST
- In force
- 42 hr
- Issued by
- NWS San Diego, CA
The radar
The Santa Ana Mts radar (KSOX), 152 km from the middle of the area, began a volume at 10:22 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
What forecasters said that day
The local office's own words before this winter storm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS San Diego, CA wrote its last area forecast discussion before this winter storm warning went out at Nov 19, 9:21 PM PST, 5 hours 1 minute earlier.
Area forecast discussion, Nov 19, 9:21 PM PST, 5 hours 1 minute before
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</html>The office that day
Everything else NWS San Diego, CA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Nov 19, 8:56 PM PST | Small Craft Advisory | SGX | 29 hr |
Nearby
Winter Storm Warnings in California, 2025Every winter storm warning in 2025
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive.