Alert archive / California / Frost Advisories in 2019

Frost Advisory 1, NWS San Francisco Bay Area, CA

October 30, 20195 counties in California

NWS San Francisco Bay Area, CA issued this frost advisory at Oct 30, 2019, 2:21 AM PDT for 5 counties in California. It took effect at Oct 31, 2019, 2:00 AM PDT. It was in force for .

The area

The counties it named.

The facts

Issued
Oct 30, 2019, 2:21 AM PDT (09:21 UTC)
In effect from
Oct 31, 2019, 2:00 AM PDT
Expired
Oct 30, 2019, 2:06 PM PDT
In force
Issued by
NWS San Francisco Bay Area, CA

Counties Marin County, CA, Monterey County, CA, Napa County, CA, San Benito County, CA, Sonoma County, CA

The radar

The San Francisco radar (KMUX), 50 km from the middle of the area, began a volume at 09:23 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 Francisco Bay Area, CA wrote its last area forecast discussion before this frost advisory went out at Oct 29, 2:46 PM PDT, 11 hours 35 minutes earlier.

Area forecast discussion, Oct 29, 2:46 PM PDT, 11 hours 35 minutes before
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The office that day

Everything else NWS San Francisco Bay Area, CA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Oct 30, 2:06 PM PDTFreeze WarningMTRMarin, Monterey, Napa, San Benito, Sonoma19 hr

Nearby

Frost Advisories in California, 2019Every frost advisory in 2019

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.