Alert archive / California / Heat Advisories in 2020

Heat Advisory 2, NWS San Francisco Bay Area, CA

June 1, 202010 counties in California

NWS San Francisco Bay Area, CA issued this heat advisory at Jun 1, 2020, 12:47 PM PDT for 10 counties in California. It took effect at Jun 3, 2020, 10:00 AM PDT. It was in force for 11 hr.

The area

The counties it named.

The facts

Issued
Jun 1, 2020, 12:47 PM PDT (19:47 UTC)
In effect from
Jun 3, 2020, 10:00 AM PDT
Expired
Jun 3, 2020, 9:00 PM PDT
In force
11 hr
Issued by
NWS San Francisco Bay Area, CA

Counties Alameda County, CA, Contra Costa County, CA, Marin County, CA, Monterey County, CA, Napa County, CA, San Benito County, CA, San Mateo County, CA, Santa Clara County, CA, Santa Cruz County, CA, Sonoma County, CA

The radar

The San Francisco radar (KMUX), 42 km from the middle of the area, began a volume at 19:44 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 heat 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 heat advisory went out at May 31, 4:44 PM PDT, 20 hours 3 minutes earlier.

Area forecast discussion, May 31, 4:44 PM PDT, 20 hours 3 minutes before
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Nearby

Heat Advisories in California, 2020Every heat advisory in 2020

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.