Alert archive / California / Flood Watches in 2023

Flood Watch 13, NWS San Diego, CA

December 20, 20234 counties in California

NWS San Diego, CA issued this flood watch at Dec 20, 2023, 1:54 PM PST for 4 counties in California. It took effect at Dec 21, 2023, 6:00 PM PST. It was in force for 28 hr.

The area

The counties it named.

The facts

Issued
Dec 20, 2023, 1:54 PM PST (21:54 UTC)
In effect from
Dec 21, 2023, 6:00 PM PST
Expired
Dec 22, 2023, 10:00 PM PST
In force
28 hr
Issued by
NWS San Diego, CA
Flood severity
None

Counties Orange County, CA, Riverside County, CA, San Bernardino County, CA, San Diego County, CA

The radar

The Santa Ana Mts radar (KSOX), 88 km from the middle of the area, began a volume at 21:55 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.

The office that day

Everything else NWS San Diego, CA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Dec 20, 1:48 AM PSTFlood WatchSGXOrange, Riverside, San Bernardino, San Diego12 hr
Dec 20, 1:17 PM PSTWinter Weather AdvisorySGXRiverside, San Bernardino63 hr
Dec 20, 1:54 PM PSTFlood WatchSGXRiverside, San Bernardino, San Diego8 hr

Nearby

Flood Watches in California, 2023Every flood watch in 2023

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.