Alert archive / California / Flash Flood Watches in 2019

Flash Flood Watch 6, NWS San Francisco Bay Area, CA

November 29, 2019Marin County, Napa County, Sonoma County, California

NWS San Francisco Bay Area, CA issued this flash flood watch at Nov 29, 2019, 3:42 AM PST for Marin County, Napa County, Sonoma County, California. It took effect at Nov 30, 2019, 1:00 PM PST. It was in force for 38 hr.

The area

The counties it named.

The facts

Issued: Nov 29, 2019, 3:42 AM PST (11:42 UTC)
In effect from: Nov 30, 2019, 1:00 PM PST
Expired: Dec 2, 2019, 3:00 AM PST
In force: 38 hr
Issued by: NWS San Francisco Bay Area, CA
Flood severity: None

Counties Marin County, CA, Napa County, CA, Sonoma County, CA

The radar

The Sacramento radar (KDAX), 88 km from the middle of the area, began a volume at 11:42 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 flash flood watch 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 flash flood watch went out at Nov 29, 3:38 AM PST, 4 minutes earlier.

Area forecast discussion, Nov 29, 3:38 AM PST, 4 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Nov 29, 2:41 AM PST	Gale Warning	MTR		49 hr
Nov 29, 2:41 AM PST	Small Craft Advisory	MTR		40 hr
Nov 29, 3:28 AM PST	Winter Weather Advisory	MTR	Monterey	14 hr
Nov 29, 3:33 AM PST	High Wind Watch	MTR	Alameda, Contra Costa, Marin, Monterey, Napa, San Benito and 5 more	10 hr
Nov 29, 1:42 PM PST	High Wind Warning	MTR	Marin, Monterey, San Mateo, Santa Cruz, Sonoma	61 hr
Nov 29, 1:42 PM PST	Wind Advisory	MTR	Alameda, Contra Costa, Marin, Monterey, Napa, San Benito and 5 more	61 hr
Nov 29, 2:19 PM PST	Storm Warning	MTR		37 hr

Nearby

Flash Flood Watches in California, 2019 Every flash flood watch 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.