Alert archive / California / Freeze Warnings in 2009

Freeze Warning 2, NWS San Francisco Bay Area, CA

January 4, 20094 counties in California

NWS San Francisco Bay Area, CA issued this freeze warning at Jan 4, 2009, 8:20 AM PST for 4 counties in California. It was in force for 80 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Jan 4, 2009, 8:20 AM PST (16:20 UTC)
Expired
Jan 4, 2009, 9:40 AM PST
In force
80 min
Issued by
NWS San Francisco Bay Area, CA

Counties Marin County, CA, Napa County, CA, Santa Clara County, CA, Sonoma County, CA

The radar

The Sacramento radar (KDAX), 80 km from the middle of the area, began a volume at 16:19 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 Francisco Bay Area, CA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jan 3, 11:51 PM PSTFrost AdvisoryMTRAlameda, Contra Costa, San Mateo, Santa Clara8 hr

Nearby

Freeze Warnings in California, 2009Every freeze warning in 2009

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.