Alert archive / California / Dense Fog Advisories in 2012
Dense Fog Advisory 9, NWS San Francisco Bay Area, CA
NWS San Francisco Bay Area, CA issued this dense fog advisory at Nov 26, 2012, 3:52 AM PST for 8 counties in California. It took effect at Nov 26, 2012, 4:00 AM PST. It was in force for 5 hr.
The area
The counties it named.
The facts
- Issued
- Nov 26, 2012, 3:52 AM PST (11:52 UTC)
- In effect from
- Nov 26, 2012, 4:00 AM PST
- Expired
- Nov 26, 2012, 9:00 AM PST
- In force
- 5 hr
- Issued by
- NWS San Francisco Bay Area, CA
Counties Alameda County, CA, City and County of San Francisco, CA, Contra Costa County, CA, Marin County, CA, Napa County, CA, San Mateo County, CA, Santa Clara County, CA, Sonoma County, CA
The radar
The Sacramento radar (KDAX), 87 km from the middle of the area, began a volume at 11:56 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 dense fog 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 dense fog advisory went out at Nov 26, 3:44 AM PST, 8 minutes earlier.
Area forecast discussion, Nov 26, 3:44 AM PST, 8 minutes before
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</html>Hazardous weather outlook, Nov 25, 9:16 AM PST, 18 hours 36 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA 916 AM PST SUN NOV 25 2012 CAZ006-505>513-516>518-528>530-261730- 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 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 AND INTERIOR MONTEREY COUNTY INCLUDING PINNACLES NATIONAL MONUMENT- NORTHERN SALINAS VALLEY...HOLLISTER VALLEY...AND CARMEL VALLEY- NORTHERN MONTEREY BAY-SOUTHERN MONTEREY BAY AND BIG SUR COAST- 916 AM PST SUN NOV 25 2012 THIS HAZARDOUS WEATHER OUTLOOK IS FOR SAN FRANCISCO BAY AREA AND MONTEREY BAY AREA. .DAY ONE...SUNDAY AND SUNDAY NIGHT NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY A STRONG PACIFIC STORM SYSTEM IS EXPECTED TO IMPACT THE AREA BY WEDNESDAY AND LAST THROUGH THE END OF THE WEEK. IT REMAINS TOO EARLY TO FOCUS ON EXACT DETAILS OF LOCATION...INTENSITY...AND TIMING...BUT THE POTENTIAL EXISTS FOR SIGNIFICANT RAINFALL AND STRONG WINDS ACROSS THE AREA. POTENTIALLY DAMAGING WINDS ARE POSSIBLE IN THE HIGH ELEVATIONS AND GALES POSSIBLE OVER THE LOCAL WATERS. CONTINUE TO MONITOR THE NATIONAL WEATHER SERVICE AND LOCAL MEDIA OUTLETS FOR FURTHER UPDATES ON THIS DEVELOPING STORM SYSTEM. .SPOTTER INFORMATION STATEMENT... WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS PER STANDARD OPERATING PROCEDURES.
The office that day
Everything else NWS San Francisco Bay Area, CA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Nov 26, 3:07 AM PST | Gale Watch | MTR | 12 hr | |
| Nov 26, 9:39 AM PST | Marine Dense Fog Advisory | MTR | 2 hr | |
| Nov 26, 3:02 PM PST | Gale Warning | MTR | 47 hr | |
| Nov 26, 3:02 PM PST | Small Craft Advisory | MTR | 37 hr |
Nearby
Dense Fog Advisories in California, 2012Every dense fog advisory in 2012
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.