Alert archive / California / Wind Advisories in 2018
Wind Advisory 9, NWS San Francisco Bay Area, CA
NWS San Francisco Bay Area, CA issued this wind advisory at Nov 28, 2018, 12:12 PM PST for 9 counties in California. It took effect at Nov 28, 2018, 10:00 PM PST. It was in force for 16 hr.
The area
The counties it named.
The facts
- Issued
- Nov 28, 2018, 12:12 PM PST (20:12 UTC)
- In effect from
- Nov 28, 2018, 10:00 PM PST
- Expired
- Nov 29, 2018, 1:31 PM PST
- In force
- 16 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 Mateo County, CA, Santa Clara County, CA, Santa Cruz County, CA, Sonoma County, CA
The radar
The San Francisco radar (KMUX), 48 km from the middle of the area, began a volume at 20:15 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, 8.2 hours before the alert went out and 22 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
- 12 J/kg
- Mixed-layer CIN
- -43 J/kg
- Mixed-layer LCL
- 675 m above ground
- 0-6 km bulk shear
- 67 kt
- 0-1 km storm-relative helicity
- 130 m²/s²
- 0-3 km storm-relative helicity
- 258 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
884 WWUS76 KMTR 282012 NPWMTR URGENT - WEATHER MESSAGE National Weather Service San Francisco Bay Area 1212 PM PST Wed Nov 28 2018 CAZ006-505-507>509-512-517-529-530-290500- /O.UPG.KMTR.HW.A.0002.181129T2100Z-181130T0600Z/ /O.NEW.KMTR.WI.Y.0009.181129T0600Z-181130T0000Z/ San Francisco- Coastal North Bay Including Point Reyes National Seashore- North Bay Mountains-San Francisco Bay Shoreline- San Francisco Peninsula Coast-Santa Cruz Mountains- Santa Lucia Mountains and Los Padres National Forest- Northern Monterey Bay-Southern Monterey Bay and Big Sur Coast- Including the cities of San Francisco, Tamalpais-Homestead, Sausalito, Angwin, Lagunitas-Forest Knolls, Woodacre, Oakland, Fremont, Hayward, Daly City, Berkeley, Pacifica, Scotts Valley, Boulder Creek, Day Valley, Santa Cruz, Watsonville, Live Oak, Seaside, Monterey, and Marina 1212 PM PST Wed Nov 28 2018 ...WIND ADVISORY IN EFFECT FROM 10 PM THIS EVENING TO 4 PM PST THURSDAY... The National Weather Service in San Francisco has issued a Wind Advisory, which is in effect from 10 PM this evening to 4 PM PST Thursday. The High Wind Watch is no longer in effect. * WINDS...Southwest 15 to 25 mph with gusts up to 45 mph becoming northwest Thursday afternoon. * TIMING...Late this evening through Thursday afternoon. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. Gusty winds will also make driving difficult, especially for drivers of high profile vehicles or those pulling trailers. 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. && $$ CAZ511-290500- /O.NEW.KMTR.WI.Y.0009.181129T0600Z-181130T0000Z/ East Bay Hills and the Diablo Range- Including the city of Blackhawk 1212 PM PST Wed Nov 28 2018 ...WIND ADVISORY IN EFFECT FROM 10 PM THIS EVENING TO 4 PM PST THURSDAY... The National Weather Service in San Francisco has issued a Wind Advisory, which is in effect from 10 PM this evening to 4 PM PST Thursday. * WINDS...Southwest 15 to 25 mph with gusts up to 45 mph becoming northwest Thursday afternoon. * TIMING...Late this evening through Thursday afternoon. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. Gusty winds will also make driving difficult, especially for drivers of high profile vehicles or those pulling trailers. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Wind Advisory means that winds of 35 mph are expected. Winds this strong can make driving difficult...especially for high profile vehicles. Use extra caution. && $$
3 follow-up statements
864 WWUS76 KMTR 290502 NPWMTR URGENT - WEATHER MESSAGE National Weather Service San Francisco Bay Area 902 PM PST Wed Nov 28 2018 CAZ006-505-507>509-511-512-517-529-530-291800- /O.CON.KMTR.WI.Y.0009.181129T0600Z-181130T0000Z/ San Francisco- Coastal North Bay Including Point Reyes National Seashore- North Bay Mountains-San Francisco Bay Shoreline- San Francisco Peninsula Coast-East Bay Hills and the Diablo Range- Santa Cruz Mountains- Santa Lucia Mountains and Los Padres National Forest- Northern Monterey Bay-Southern Monterey Bay and Big Sur Coast- Including the cities of San Francisco, Tamalpais-Homestead, Sausalito, Angwin, Lagunitas-Forest Knolls, Woodacre, Oakland, Fremont, Hayward, Daly City, Berkeley, Pacifica, Blackhawk, Scotts Valley, Boulder Creek, Day Valley, Santa Cruz, Watsonville, Live Oak, Seaside, Monterey, and Marina 902 PM PST Wed Nov 28 2018 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 4 PM PST THURSDAY... * WINDS...South increasing to 15 to 25 mph with gusts up to 45 mph by late Wednesday evening. Winds becoming southwest by late Wednesday night and then west by Thursday afternoon and remaining strong and gusty. * TIMING...Late Wednesday evening through Thursday afternoon. * IMPACTS...Gusty winds will blow around unsecured objects. Trees or tree limbs could be blown down and result in local power outages. Gusty winds will also make driving difficult, especially for drivers of high profile vehicles or those pulling trailers. 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. Use extra caution. && $$
976 WWUS76 KMTR 291745 NPWMTR URGENT - WEATHER MESSAGE National Weather Service San Francisco Bay Area 945 AM PST Thu Nov 29 2018 CAZ006-505-507>509-511-512-517-529-530-300000- /O.CON.KMTR.WI.Y.0009.000000T0000Z-181130T0000Z/ San Francisco- Coastal North Bay Including Point Reyes National Seashore- North Bay Mountains-San Francisco Bay Shoreline- San Francisco Peninsula Coast-East Bay Hills and the Diablo Range- Santa Cruz Mountains- Santa Lucia Mountains and Los Padres National Forest- Northern Monterey Bay-Southern Monterey Bay and Big Sur Coast- Including the cities of San Francisco, Tamalpais-Homestead, Sausalito, Angwin, Lagunitas-Forest Knolls, Woodacre, Oakland, Fremont, Hayward, Daly City, Berkeley, Pacifica, Blackhawk, Scotts Valley, Boulder Creek, Day Valley, Santa Cruz, Watsonville, Live Oak, Seaside, Monterey, and Marina 945 AM PST Thu Nov 29 2018 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 4 PM PST THIS AFTERNOON... * WINDS...Southwest winds 15 to 25 mph with gusts up to 45 mph this morning, becoming west in the afternoon. * TIMING...Through Thursday afternoon. * IMPACTS...Gusty winds will blow around unsecured objects. Trees or tree limbs could be blown down and result in local power outages. Gusty winds will also make driving difficult, especially for drivers of high profile vehicles or those pulling trailers. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Wind Advisory means that wind gusts of at least 45 mph are expected. Winds this strong can make driving difficult... especially for high profile vehicles. Use extra caution. && $$
487 WWUS76 KMTR 292131 NPWMTR URGENT - WEATHER MESSAGE National Weather Service San Francisco Bay Area 131 PM PST Thu Nov 29 2018 CAZ006-505-507>509-511-512-517-529-530-292245- /O.CAN.KMTR.WI.Y.0009.000000T0000Z-181130T0000Z/ San Francisco- Coastal North Bay Including Point Reyes National Seashore- North Bay Mountains-San Francisco Bay Shoreline- San Francisco Peninsula Coast-East Bay Hills and the Diablo Range- Santa Cruz Mountains- Santa Lucia Mountains and Los Padres National Forest- Northern Monterey Bay-Southern Monterey Bay and Big Sur Coast- Including the cities of San Francisco, Tamalpais-Homestead, Sausalito, Angwin, Lagunitas-Forest Knolls, Woodacre, Oakland, Fremont, Hayward, Daly City, Berkeley, Pacifica, Blackhawk, Scotts Valley, Boulder Creek, Day Valley, Santa Cruz, Watsonville, Live Oak, Seaside, Monterey, and Marina 131 PM PST Thu Nov 29 2018 ...WIND ADVISORY IS CANCELLED... The National Weather Service in San Francisco has cancelled the Wind Advisory. Wind speeds have fallen below advisory criteria as of early this afternoon. However, breezy to locally gusty northwesterly winds will be possible through tonight. $$
Nearby
Wind Advisories in California, 2018Every wind advisory in 2018
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.