Alert archive / California / Frost Advisories in 2022

Frost Advisory 2, NWS San Diego, CA

January 2, 2022San Diego County, California

NWS San Diego, CA issued this frost advisory at Jan 2, 2022, 3:25 AM PST for San Diego County, California. It took effect at Jan 3, 2022, 12:00 AM PST. It was in force for 8 hr.

The area

The counties it named.

The facts

Issued
Jan 2, 2022, 3:25 AM PST (11:25 UTC)
In effect from
Jan 3, 2022, 12:00 AM PST
Expired
Jan 3, 2022, 8:00 AM PST
In force
8 hr
Issued by
NWS San Diego, CA

County San Diego County, CA

The radar

The San Diego radar (KNKX), 28 km from the middle of the area, began a volume at 11:24 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 frost advisory 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 frost advisory went out at Jan 1, 1:29 PM PST, 13 hours 56 minutes earlier.

Area forecast discussion, Jan 1, 1:29 PM PST, 13 hours 56 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Jan 2, 3:25 AM PSTFreeze WarningSGXRiverside, San Bernardino, San Diego29 hr

Nearby

Frost Advisories in California, 2022Every frost advisory in 2022

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.