Alert archive / California / Wind Advisories in 2021
Wind Advisory 13, NWS San Francisco Bay Area, CA
NWS San Francisco Bay Area, CA issued this wind advisory at Nov 7, 2021, 1:24 PM PST for 9 counties in California. It took effect at Nov 8, 2021, 7:00 PM PST. It was in force for 8 hr.
The area
The counties it named.
The facts
- Issued
- Nov 7, 2021, 1:24 PM PST (21:24 UTC)
- In effect from
- Nov 8, 2021, 7:00 PM PST
- Expired
- Nov 9, 2021, 3:00 AM PST
- In force
- 8 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, Santa Cruz County, CA, Sonoma County, CA
The radar
The San Francisco radar (KMUX), 78 km from the middle of the area, began a volume at 21:28 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.
The nearest sounding before it
Oakland, CA (KOAK), launched 12:00Z, 9.4 hours before the alert went out and 9 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1746 m above ground
- 0-6 km bulk shear
- 63 kt
- 0-1 km storm-relative helicity
- -99 m²/s²
- 0-3 km storm-relative helicity
- 90 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
123 WWUS76 KMTR 072124 NPWMTR URGENT - WEATHER MESSAGE National Weather Service San Francisco Bay Area 124 PM PST Sun Nov 7 2021 CAZ006-505>512-080600- /O.NEW.KMTR.WI.Y.0013.211109T0300Z-211109T1100Z/ 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- Including the cities of San Francisco, Tamalpais-Homestead, Sausalito, Santa Rosa, South Santa Rosa, Napa, San Rafael, Petaluma, Novato, Rohnert Park, Angwin, Lagunitas-Forest Knolls, Woodacre, Oakland, Fremont, Hayward, Daly City, Berkeley, Pacifica, Concord, Antioch, Livermore, Walnut Creek, Pleasanton, Pittsburg, San Ramon, Blackhawk, Scotts Valley, Boulder Creek, and Day Valley 124 PM PST Sun Nov 7 2021 ...WIND ADVISORY IN EFFECT FROM 7 PM MONDAY TO 3 AM PST TUESDAY... * WHAT...South winds 20 to 30 mph with gusts up to 45 mph expected. * WHERE...The North Bay, East Bay, Santa Cruz Mountains, San Francisco Peninsula and portions of the San Francisco Bay Shoreline. * WHEN...From 7 PM Monday to 3 AM PST Tuesday. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ For more information from the National Weather Service visit http://weather.gov/mtr
5 follow-up statements
595 WWUS76 KMTR 080607 NPWMTR URGENT - WEATHER MESSAGE National Weather Service San Francisco Bay Area 1007 PM PST Sun Nov 7 2021 CAZ006-505>512-081415- /O.CON.KMTR.WI.Y.0013.211109T0300Z-211109T1100Z/ San Francisco- Coastal North Bay Including Point Reyes National Seashore- North Bay Interior Valleys-North Bay Mountains- San Francisco Bay Shoreline-San Francisco Peninsula Coast- East Bay Interior Valleys-East Bay Hills and the Diablo Range- Santa Cruz Mountains- Including the cities of San Francisco, Tamalpais-Homestead, Sausalito, Santa Rosa, South Santa Rosa, Napa, San Rafael, Petaluma, Novato, Rohnert Park, Angwin, Lagunitas-Forest Knolls, Woodacre, Oakland, Fremont, Hayward, Daly City, Berkeley, Pacifica, Concord, Antioch, Livermore, Walnut Creek, Pleasanton, Pittsburg, San Ramon, Blackhawk, Scotts Valley, Boulder Creek, and Day Valley 1007 PM PST Sun Nov 7 2021 ...WIND ADVISORY REMAINS IN EFFECT FROM 7 PM MONDAY TO 3 AM PST TUESDAY... * WHAT...South winds 20 to 30 mph with gusts up to 45 mph expected. * WHERE...The North Bay, East Bay, Santa Cruz Mountains, San Francisco Peninsula and portions of the San Francisco Bay Shoreline. * WHEN...From 7 PM Monday to 3 AM PST Tuesday. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ For more information from the National Weather Service visit http://weather.gov/mtr
371 WWUS76 KMTR 081134 NPWMTR URGENT - WEATHER MESSAGE National Weather Service San Francisco Bay Area 334 AM PST Mon Nov 8 2021 CAZ006-505>512-082300- /O.CON.KMTR.WI.Y.0013.211109T0300Z-211109T1100Z/ 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- Including the cities of San Francisco, Tamalpais-Homestead, Sausalito, Santa Rosa, South Santa Rosa, Napa, San Rafael, Petaluma, Novato, Rohnert Park, Angwin, Lagunitas-Forest Knolls, Woodacre, Oakland, Fremont, Hayward, Daly City, Berkeley, Pacifica, Concord, Antioch, Livermore, Walnut Creek, Pleasanton, Pittsburg, San Ramon, Blackhawk, Scotts Valley, Boulder Creek, and Day Valley 334 AM PST Mon Nov 8 2021 ...WIND ADVISORY REMAINS IN EFFECT FROM 7 PM THIS EVENING TO 3 AM PST TUESDAY... * WHAT...South winds 15 to 25 mph with gusts up to 45 mph expected. * WHERE...Portions of northern California. * WHEN...From 7 PM this evening to 3 AM PST Tuesday. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ For more information from the National Weather Service visit http://weather.gov/mtr
715 WWUS76 KMTR 082135 NPWMTR URGENT - WEATHER MESSAGE National Weather Service San Francisco Bay Area 135 PM PST Mon Nov 8 2021 CAZ006-505>512-090600- /O.CON.KMTR.WI.Y.0013.211109T0300Z-211109T1100Z/ San Francisco- Coastal North Bay Including Point Reyes National Seashore- North Bay Interior Valleys-North Bay Mountains- San Francisco Bay Shoreline-San Francisco Peninsula Coast- East Bay Interior Valleys-East Bay Hills and the Diablo Range- Santa Cruz Mountains- Including the cities of San Francisco, Tamalpais-Homestead, Sausalito, Santa Rosa, South Santa Rosa, Napa, San Rafael, Petaluma, Novato, Rohnert Park, Angwin, Lagunitas-Forest Knolls, Woodacre, Oakland, Fremont, Hayward, Daly City, Berkeley, Pacifica, Concord, Antioch, Livermore, Walnut Creek, Pleasanton, Pittsburg, San Ramon, Blackhawk, Scotts Valley, Boulder Creek, and Day Valley 135 PM PST Mon Nov 8 2021 ...WIND ADVISORY REMAINS IN EFFECT FROM 7 PM THIS EVENING TO 3 AM PST TUESDAY... * WHAT...South winds 15 to 25 mph with gusts up to 45 mph expected. * WHERE...The North Bay, East Bay, Santa Cruz Mountains, San Francisco Peninsula and portions of the San Francisco Bay Shoreline. * WHEN...From 7 PM this evening to 3 AM PST Tuesday. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ For more information from the National Weather Service visit http://weather.gov/mtr
144 WWUS76 KMTR 090617 NPWMTR URGENT - WEATHER MESSAGE National Weather Service San Francisco Bay Area 1017 PM PST Mon Nov 8 2021 CAZ006-505>512-091100- /O.CON.KMTR.WI.Y.0013.000000T0000Z-211109T1100Z/ 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- Including the cities of San Francisco, Tamalpais-Homestead, Sausalito, Santa Rosa, South Santa Rosa, Napa, San Rafael, Petaluma, Novato, Rohnert Park, Angwin, Lagunitas-Forest Knolls, Woodacre, Oakland, Fremont, Hayward, Daly City, Berkeley, Pacifica, Concord, Antioch, Livermore, Walnut Creek, Pleasanton, Pittsburg, San Ramon, Blackhawk, Scotts Valley, Boulder Creek, and Day Valley 1017 PM PST Mon Nov 8 2021 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 3 AM PST TUESDAY... * WHAT...South winds 15 to 25 mph with gusts up to 45 mph expected. * WHERE...The North Bay, East Bay, Santa Cruz Mountains, San Francisco Peninsula and portions of the San Francisco Bay Shoreline. * WHEN...From 7 PM this evening to 3 AM PST Tuesday. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ For more information from the National Weather Service visit http://weather.gov/mtr
609 WWUS76 KMTR 091052 NPWMTR URGENT - WEATHER MESSAGE National Weather Service San Francisco Bay Area 252 AM PST Tue Nov 9 2021 CAZ006-505>512-091200- /O.EXP.KMTR.WI.Y.0013.000000T0000Z-211109T1100Z/ San Francisco- Coastal North Bay Including Point Reyes National Seashore- North Bay Interior Valleys-North Bay Mountains- San Francisco Bay Shoreline-San Francisco Peninsula Coast- East Bay Interior Valleys-East Bay Hills and the Diablo Range- Santa Cruz Mountains- Including the cities of San Francisco, Tamalpais-Homestead, Sausalito, Santa Rosa, South Santa Rosa, Napa, San Rafael, Petaluma, Novato, Rohnert Park, Angwin, Lagunitas-Forest Knolls, Woodacre, Oakland, Fremont, Hayward, Daly City, Berkeley, Pacifica, Concord, Antioch, Livermore, Walnut Creek, Pleasanton, Pittsburg, San Ramon, Blackhawk, Scotts Valley, Boulder Creek, and Day Valley 252 AM PST Tue Nov 9 2021 ...WIND ADVISORY WILL EXPIRE AT 3 AM PST EARLY THIS MORNING... Southerly winds continue to diminish across the region early this morning. While wind speeds are likely to fall below advisory criteria, breezy to gusty winds of 30-40 mph will be possible through sunrise. $$ For more information from the National Weather Service visit http://weather.gov/mtr
The office that day
Everything else NWS San Francisco Bay Area, CA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Nov 7, 2:28 AM PST | Gale Warning | MTR | 49 hr | |
| Nov 7, 2:53 PM PST | Small Craft Advisory | MTR | 48 hr |
Nearby
Wind Advisories in California, 2021Every wind advisory in 2021
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.