Alert archive / California / Areal Flood Warnings in 2017
Areal Flood Warning 28, NWS San Francisco Bay Area, CA
NWS San Francisco Bay Area, CA issued this areal flood warning at Feb 7, 2017, 12:21 AM PST for Sonoma County, California. It was in force for 32 hr. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Feb 7, 2017, 12:21 AM PST (08:21 UTC)
- Expired
- Feb 8, 2017, 8:15 AM PST
- In force
- 32 hr
- Issued by
- NWS San Francisco Bay Area, CA
- Area
- Storm-based polygon
- Flood severity
- None
County Sonoma County, CA
The radar
The Sacramento radar (KDAX), 108 km from the middle of the area, began a volume at 08:23 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 areal flood warning 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 areal flood warning went out at Feb 6, 9:41 PM PST, 2 hours 40 minutes earlier.
Area forecast discussion, Feb 6, 9:41 PM PST, 2 hours 40 minutes before
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</html>Hazardous weather outlook, Feb 6, 3:57 AM PST, 20 hours 24 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA 357 AM PST MON FEB 6 2017 CAZ006-505>513-516>518-528>530-071200- SAN FRANCISCO- COASTAL NORTH BAY INCLUDING POINT REYES NATIONAL SEASHORE- NORTH BAY INTERIOR VALLEYS-NORTH BAY MOUNTAINS- SAN FRANCISCO BAY SHORELINE-SAN FRANCISCO PENINSULA COAST- EAST BAY INTERIOR VALLEYS-EAST BAY HILLS AND THE DIABLO RANGE- SANTA CRUZ MOUNTAINS-SANTA CLARA VALLEY INCLUDING SAN JOSE- SOUTHERN SALINAS VALLEY/ARROYO SECO AND LAKE SAN ANTONIO- SANTA LUCIA MOUNTAINS AND LOS PADRES NATIONAL FOREST- MOUNTAINS OF SAN BENITO COUNTY AND INTERIOR MONTEREY COUNTY INCLUDING PINNACLES NATIONAL PARK- NORTHERN SALINAS VALLEY/HOLLISTER VALLEY AND CARMEL VALLEY- NORTHERN MONTEREY BAY-SOUTHERN MONTEREY BAY AND BIG SUR COAST- 357 AM PST MON FEB 6 2017 THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE SAN FRANCISCO AND MONTEREY BAY REGION. ANOTHER ROUND OF WIDESPREAD RAIN AND GUSTY SOUTHERLY WINDS WILL MOVE THROUGH OUR REGION THIS EVENING THROUGH AT LEAST TUESDAY MORNING. AT THIS TIME STREAMS AND RIVERS ARE EXPECTED TO RISE RAPIDLY BUT SHOULD STAY UNDER FLOOD LEVELS. RAINFALL COULD BE HEAVY AT TIMES AND WINDS WILL LOCALLY GUST TO OVER 35 MPH. A WIND ADVISORY IS IN EFFECT FOR TONIGHT THROUGH TUESDAY MORNING. SHOWERS WILL SWITCH BACK TO WIDESPREAD RAINFALL ON THURSDAY WITH MORE SHOWERS LIKELY ON FRIDAY. DRIER WEATHER WILL RETURN ON SATURDAY.
In the hours before
Local storm report, Feb 6, 10:24 PM PST, 1 hour 57 minutes before
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</html>Local storm report, Feb 7, 12:20 AM PST, 1 minute before
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</html>The office that day
Everything else NWS San Francisco Bay Area, CA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 7, 1:03 AM PST | Areal Flood Warning | MTR | Sonoma | 11 hr |
| Feb 7, 1:47 AM PST | Areal Flood Warning | MTR | Napa | 6 hr |
| Feb 7, 2:28 AM PST | Areal Flood Advisory | MTR | Alameda, Contra Costa | 2 hr |
| Feb 7, 7:09 AM PST | Flash Flood Warning | MTR | Marin | 4 hr |
| Feb 7, 7:15 AM PST | Flash Flood Warning | MTR | Napa | 6 hr |
| Feb 7, 7:34 AM PST | Flash Flood Warning | MTR | Santa Cruz | 8 hr |
| Feb 7, 9:33 AM PST | Flash Flood Warning | MTR | Alameda | 8 hr |
| Feb 7, 9:55 AM PST | Flash Flood Warning | MTR | Santa Clara | 8 hr |
| Feb 7, 10:22 AM PST | Flash Flood Warning | MTR | San Benito, Santa Clara | 12 hr |
| Feb 7, 10:26 AM PST | Areal Flood Warning | MTR | San Mateo | 11 hr |
| Feb 7, 10:47 AM PST | Flash Flood Warning | MTR | San Mateo, Santa Clara | 3 hr |
| Feb 7, 11:04 AM PST | River Flood Warning | MTR | Sonoma | 4 days |
| Feb 7, 11:30 AM PST | Flash Flood Warning | MTR | Santa Cruz | 6 hr |
| Feb 7, 11:59 AM PST | Flash Flood Warning | MTR | Monterey | 4 hr |
Nearby
Areal Flood Warnings in California, 2017Every areal flood warning in 2017
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.