Alert archive / California / Wind Advisories in 2021
Wind Advisory 9, NWS San Francisco Bay Area, CA
NWS San Francisco Bay Area, CA issued this wind advisory at Jun 6, 2021, 1:48 PM PDT for 9 counties in California. It took effect at Jun 7, 2021, 12:00 PM PDT. It was in force for 8 hr.
The area
The counties it named.
The facts
- Issued
- Jun 6, 2021, 1:48 PM PDT (20:48 UTC)
- In effect from
- Jun 7, 2021, 12:00 PM PDT
- Expired
- Jun 7, 2021, 8:00 PM PDT
- 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, Monterey County, CA, San Benito County, CA, San Mateo County, CA, Santa Cruz County, CA, Sonoma County, CA
The nearest sounding before it
Oakland, CA (KOAK), launched 12:00Z, 8.8 hours before the alert went out and 31 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
- 1487 m above ground
- 0-6 km bulk shear
- 18 kt
- 0-1 km storm-relative helicity
- 29 m²/s²
- 0-3 km storm-relative helicity
- 10 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
554 WWUS76 KMTR 062048 NPWMTR URGENT - WEATHER MESSAGE National Weather Service San Francisco Bay Area 148 PM PDT Sun Jun 6 2021 CAZ006-505-509-510-516-528>530-070500- /O.NEW.KMTR.WI.Y.0009.210607T1900Z-210608T0300Z/ San Francisco- Coastal North Bay Including Point Reyes National Seashore- San Francisco Peninsula Coast-East Bay Interior Valleys- Southern Salinas Valley/Arroyo Seco and Lake San Antonio- Northern Salinas Valley/Hollister Valley and Carmel Valley- Northern Monterey Bay-Southern Monterey Bay and Big Sur Coast- Including the cities of San Francisco, Tamalpais-Homestead, Sausalito, Pacifica, Concord, Antioch, Livermore, Walnut Creek, Pleasanton, Pittsburg, San Ramon, Greenfield, King City, Salinas, Santa Cruz, Watsonville, Live Oak, Seaside, Monterey, and Marina 148 PM PDT Sun Jun 6 2021 ...WIND ADVISORY IN EFFECT FROM NOON TO 8 PM PDT MONDAY... The National Weather Service in San Francisco has issued a Wind Advisory, which is in effect from noon to 8 PM PDT Monday. * LOCATION...The Sonoma and Marin County Coastline, the city of SF, the East Bay Interior Valleys,the Pacific-facing side of the San Mateo Coast, Coastal Santa Cruz County, Southern Monterey Bay, and the Salinas Valley. * TIMING...Valid from Noon to 8PM. * WINDS...Winds between 25-35 mph will be possible with areas along the gaps and passes having the potential for 35-45 mph gusts at times, with local gusts up to 55 mph possible at some of the favored gaps and passes. * IMPACTS...Winds will pick up tomorrow as a low pressure moves over the region, with areas along the immediate coast, the City of San Francisco, and wind-facing portions of the East Bay interior valleys and the Salinas valley all expected to experience sustained winds between 25-35 mph with higher localized gusts up to 55 mph along the favored gaps and passes (e.g. San Bruno and Altamont). These winds will weaken by sunset as the low departs the region but will still observe breezy isolated spots along the gaps and passes in the evening. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Wind Advisory means that winds of 35 mph are expected. Winds this strong can make driving difficult...especially for high profile vehicles. Use extra caution. && $$
4 follow-up statements
192 WWUS76 KMTR 062232 NPWMTR URGENT - WEATHER MESSAGE National Weather Service San Francisco Bay Area 332 PM PDT Sun Jun 6 2021 CAZ529-062345- /O.CAN.KMTR.WI.Y.0009.210607T1900Z-210608T0300Z/ Northern Monterey Bay- Including the cities of Santa Cruz, Watsonville, and Live Oak 332 PM PDT Sun Jun 6 2021 ...WIND ADVISORY IS CANCELLED... Winds are not expected to reach advisory levels in Northern Monterey Bay on Monday afternoon and evening. $$ CAZ507-511-071300- /O.EXA.KMTR.WI.Y.0009.210607T1900Z-210608T0300Z/ North Bay Mountains-East Bay Hills and the Diablo Range- Including the cities of Angwin, Lagunitas-Forest Knolls, Woodacre, and Blackhawk 332 PM PDT Sun Jun 6 2021 ...WIND ADVISORY IN EFFECT FROM NOON TO 8 PM PDT MONDAY... * WHAT...West to northwest winds 15 to 25 mph with gusts up to 55 mph expected. * WHERE...North Bay Mountains. East Bay Hills and the Diablo Range. Strongest winds expected through gaps and passes, such as the Altamont Pass and Patterson Pass. * WHEN...Noon to 8 PM PDT Monday. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. * ADDITIONAL DETAILS...Winds will slowly ease late Monday evening, but breezy conditions will continue through midweek. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Wind Advisory means that wind gusts of at least 45 mph are expected. Winds this strong can make driving difficult...especially for high profile vehicles. Secure outdoor objects. && $$ CAZ006-505-509-510-516-528-530-071300- /O.CON.KMTR.WI.Y.0009.210607T1900Z-210608T0300Z/ San Francisco- Coastal North Bay Including Point Reyes National Seashore- San Francisco Peninsula Coast-East Bay Interior Valleys- Southern Salinas Valley/Arroyo Seco and Lake San Antonio- Northern Salinas Valley/Hollister Valley and Carmel Valley- Southern Monterey Bay and Big Sur Coast- Including the cities of San Francisco, Tamalpais-Homestead, Sausalito, Pacifica, Concord, Antioch, Livermore, Walnut Creek, Pleasanton, Pittsburg, San Ramon, Greenfield, King City, Salinas, Seaside, Monterey, and Marina 332 PM PDT Sun Jun 6 2021 ...WIND ADVISORY REMAINS IN EFFECT FROM NOON TO 8 PM PDT MONDAY... * WHAT...West to northwest winds 15 to 25 mph with gusts up to 45 mph expected. * WHERE...North Bay Coast, City of San Francisco, San Francisco Peninsula Coast, East Bay Valleys, Salinas Valley, Big Sur Coast. Strongest winds expected near the immediate coast, through coastal gaps such as San Bruno Gap, and to the east of Altamont Pass. * WHEN...Noon to 8 PM PDT Monday. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. * ADDITIONAL DETAILS...Winds will slowly ease late Monday evening, but breezy conditions will continue through midweek. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Wind Advisory means that wind gusts of at least 45 mph are expected. Winds this strong can make driving difficult...especially for high profile vehicles. Secure outdoor objects. && $$ For more information from the National Weather Service visit http://weather.gov/mtr
568 WWUS76 KMTR 071024 NPWMTR URGENT - WEATHER MESSAGE National Weather Service San Francisco Bay Area 324 AM PDT Mon Jun 7 2021 CAZ006-505-507-509>511-516-528-530-072100- /O.CON.KMTR.WI.Y.0009.210607T1900Z-210608T0300Z/ San Francisco- Coastal North Bay Including Point Reyes National Seashore- North Bay Mountains-San Francisco Peninsula Coast- East Bay Interior Valleys-East Bay Hills and the Diablo Range- Southern Salinas Valley/Arroyo Seco and Lake San Antonio- Northern Salinas Valley/Hollister Valley and Carmel Valley- Southern Monterey Bay and Big Sur Coast- Including the cities of San Francisco, Tamalpais-Homestead, Sausalito, Angwin, Lagunitas-Forest Knolls, Woodacre, Pacifica, Concord, Antioch, Livermore, Walnut Creek, Pleasanton, Pittsburg, San Ramon, Blackhawk, Greenfield, King City, Salinas, Seaside, Monterey, and Marina 324 AM PDT Mon Jun 7 2021 ...WIND ADVISORY REMAINS IN EFFECT FROM NOON TODAY TO 8 PM PDT THIS EVENING... * WHAT...West to northwest winds 15 to 25 mph with gusts up to 45 mph expected and up to 55 mph in the passes and peaks. * WHERE...North Bay Mountains, East Bay Hills and the Diablo Range, North Bay Coast, City of San Francisco, San Francisco Peninsula Coast, East Bay Valleys, Salinas Valley, Big Sur Coast. Strongest winds expected near the immediate coast, through coastal gaps such as San Bruno Gap and passes such as Altamont Pass and Patterson Pass. * WHEN...From noon today to 8 PM PDT this evening. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. * ADDITIONAL DETAILS...Winds will slowly ease late Monday evening, but breezy conditions will continue through midweek. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ For more information from the National Weather Service visit http://weather.gov/mtr
216 WWUS76 KMTR 072010 NPWMTR URGENT - WEATHER MESSAGE National Weather Service San Francisco Bay Area 110 PM PDT Mon Jun 7 2021 CAZ006-505-507-509>511-516-528-530-080300- /O.CON.KMTR.WI.Y.0009.000000T0000Z-210608T0300Z/ San Francisco- Coastal North Bay Including Point Reyes National Seashore- North Bay Mountains-San Francisco Peninsula Coast- East Bay Interior Valleys-East Bay Hills and the Diablo Range- Southern Salinas Valley/Arroyo Seco and Lake San Antonio- Northern Salinas Valley/Hollister Valley and Carmel Valley- Southern Monterey Bay and Big Sur Coast- Including the cities of San Francisco, Tamalpais-Homestead, Sausalito, Angwin, Lagunitas-Forest Knolls, Woodacre, Pacifica, Concord, Antioch, Livermore, Walnut Creek, Pleasanton, Pittsburg, San Ramon, Blackhawk, Greenfield, King City, Salinas, Seaside, Monterey, and Marina 110 PM PDT Mon Jun 7 2021 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 8 PM PDT THIS EVENING... * WHAT...West to northwest winds 15 to 25 mph with gusts up to 45 mph expected and up to 55 mph in the passes and peaks. * WHERE...North Bay Mountains, East Bay Hills and the Diablo Range, North Bay Coast, City of San Francisco, San Francisco Peninsula Coast, East Bay Valleys, Salinas Valley, Big Sur Coast. Strongest winds expected near the immediate coast, through coastal gaps such as San Bruno Gap and passes such as Altamont Pass and Patterson Pass. * WHEN...Until 8 PM PDT this evening. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. * ADDITIONAL DETAILS...Winds will slowly ease late Monday evening, but breezy conditions will continue through midweek. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ For more information from the National Weather Service visit http://weather.gov/mtr
740 WWUS76 KMTR 080316 NPWMTR URGENT - WEATHER MESSAGE National Weather Service San Francisco Bay Area 816 PM PDT Mon Jun 7 2021 CAZ006-505-507-509>511-516-528-530-080430- /O.EXP.KMTR.WI.Y.0009.000000T0000Z-210608T0300Z/ San Francisco- Coastal North Bay Including Point Reyes National Seashore- North Bay Mountains-San Francisco Peninsula Coast- East Bay Interior Valleys-East Bay Hills and the Diablo Range- Southern Salinas Valley/Arroyo Seco and Lake San Antonio- Northern Salinas Valley/Hollister Valley and Carmel Valley- Southern Monterey Bay and Big Sur Coast- Including the cities of San Francisco, Tamalpais-Homestead, Sausalito, Angwin, Lagunitas-Forest Knolls, Woodacre, Pacifica, Concord, Antioch, Livermore, Walnut Creek, Pleasanton, Pittsburg, San Ramon, Blackhawk, Greenfield, King City, Salinas, Seaside, Monterey, and Marina 816 PM PDT Mon Jun 7 2021 ...WIND ADVISORY HAS EXPIRED... Winds have subsided at most lower elevation locations. Gusty winds continue in the hills, especially through passes and gaps, but winds are expected to gradually subside overnight. $$ 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 |
|---|---|---|---|---|
| Jun 6, 2:41 AM PDT | Small Craft Advisory | MTR | 42 hr | |
| Jun 6, 3:15 PM PDT | Small Craft Advisory | MTR | 30 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.