Alert archive / California / Wind Advisories in 2018
Wind Advisory 4, NWS San Francisco Bay Area, CA
NWS San Francisco Bay Area, CA issued this wind advisory at Feb 28, 2018, 4:32 AM PST for 11 counties in California. It took effect at Mar 1, 2018, 2:00 AM PST. It was in force for 20 hr.
The area
The counties it named.
The facts
- Issued
- Feb 28, 2018, 4:32 AM PST (12:32 UTC)
- In effect from
- Mar 1, 2018, 2:00 AM PST
- Expired
- Mar 1, 2018, 10:00 PM PST
- In force
- 20 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, Napa County, CA, San Benito County, CA, San Mateo County, CA, Santa Clara County, CA, Santa Cruz County, CA, Sonoma County, CA
The radar
The San Francisco radar (KMUX), 46 km from the middle of the area, began a volume at 12:34 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, 0.5 hours before the alert went out and 24 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
- 1704 m above ground
- 0-6 km bulk shear
- 32 kt
- 0-1 km storm-relative helicity
- 61 m²/s²
- 0-3 km storm-relative helicity
- 71 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
093 WWUS76 KMTR 281232 NPWMTR URGENT - WEATHER MESSAGE National Weather Service San Francisco Bay Area 432 AM PST Wed Feb 28 2018 CAZ006-505>510-010100- /O.NEW.KMTR.WI.Y.0004.180301T1000Z-180301T2000Z/ 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- 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, and San Ramon 432 AM PST Wed Feb 28 2018 ...WIND ADVISORY IN EFFECT FROM 2 AM TO NOON PST THURSDAY... The National Weather Service in San Francisco has issued a Wind Advisory, which is in effect from 2 AM to noon PST Thursday. * LOCATION: North Bay and the San Francisco Bay Region * TIMING: 2 AM Thursday to noon * WINDS: Wind from the south of 15 to 30 mph with local gusts over 45 mph. Highest speeds will be at higher elevation locations especially ridge tops. 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. && $$ CAZ511>513-516>518-528>530-010100- /O.NEW.KMTR.WI.Y.0004.180301T1500Z-180302T0600Z/ East Bay Hills and the Diablo Range-Santa Cruz Mountains- Santa Clara Valley Including San Jose- Southern Salinas Valley/Arroyo Seco and Lake San Antonio- Santa Lucia Mountains and Los Padres National Forest- Mountains Of San Benito County And Interior Monterey County Including Pinnacles National Park- Northern Salinas Valley/Hollister Valley and Carmel Valley- Northern Monterey Bay-Southern Monterey Bay and Big Sur Coast- Including the cities of Blackhawk, Scotts Valley, Boulder Creek, Day Valley, San Jose, Greenfield, King City, Salinas, Santa Cruz, Watsonville, Live Oak, Seaside, Monterey, and Marina 432 AM PST Wed Feb 28 2018 ...WIND ADVISORY IN EFFECT FROM 7 AM TO 10 PM PST THURSDAY... The National Weather Service in San Francisco has issued a Wind Advisory, which is in effect from 7 AM to 10 PM PST Thursday. * LOCATION: Santa Cruz, Santa Clara, Monterey and San Benito counties. * TIMING: 7 AM Thursday to 10 PM Thursday * WINDS: Wind from the south of 15 to 30 mph with local gusts over 45 mph. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Wind Advisory means that winds of 35 mph are expected. Winds this strong can make driving difficult...especially for high profile vehicles. Use extra caution. && $$
5 follow-up statements
864 WWUS76 KMTR 281848 NPWMTR URGENT - WEATHER MESSAGE National Weather Service San Francisco Bay Area 1048 AM PST Wed Feb 28 2018 CAZ513-516-528-282000- /O.CAN.KMTR.WI.Y.0004.180301T1500Z-180302T0600Z/ Santa Clara Valley Including San Jose- Southern Salinas Valley/Arroyo Seco and Lake San Antonio- Northern Salinas Valley/Hollister Valley and Carmel Valley- Including the cities of San Jose, Greenfield, King City, and Salinas 1048 AM PST Wed Feb 28 2018 ...WIND ADVISORY IS CANCELLED... The National Weather Service in San Francisco has cancelled the Wind Advisory. The Wind Advisory has been cancelled for the Salinas Valley and Santa Clara Valley as wind speeds will likely remain below criteria. However, breezy and locally gusty winds up to 35 mph will be possible ahead of and after the a frontal passage on Thursday. $$ CAZ006-505>510-010600- /O.EXT.KMTR.WI.Y.0004.180301T1000Z-180302T0600Z/ San Francisco- Coastal North Bay Including Point Reyes National Seashore- North Bay Interior Valleys-North Bay Mountains- San Francisco Bay Shoreline-San Francisco Peninsula Coast- East Bay Interior Valleys- Including the cities of San Francisco, Tamalpais-Homestead, Sausalito, Santa Rosa, South Santa Rosa, Napa, San Rafael, Petaluma, Novato, Rohnert Park, Angwin, Lagunitas-Forest Knolls, Woodacre, Oakland, Fremont, Hayward, Daly City, Berkeley, Pacifica, Concord, Antioch, Livermore, Walnut Creek, Pleasanton, Pittsburg, and San Ramon 1048 AM PST Wed Feb 28 2018 ...WIND ADVISORY NOW IN EFFECT FROM 2 AM TO 10 PM PST THURSDAY... The Wind Advisory is now in effect from 2 AM to 10 PM PST Thursday. * LOCATION: North Bay and the San Francisco Bay Region * TIMING: 2 AM to 10 PM Thursday * WINDS: Wind from the south of 15 to 30 mph with local gusts in excess of 45 mph. Highest wind speeds will occur in higher elevation locations, especially ridge tops and peaks. * IMPACTS...Blowing debris, difficult driving conditions for high profile vehicles, and potential for downed trees and powerlines. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Wind Advisory means that winds of 35 mph are expected. Winds this strong can make driving difficult...especially for high profile vehicles. Use extra caution. && $$ CAZ511-512-517-518-529-530-010600- /O.CON.KMTR.WI.Y.0004.180301T1500Z-180302T0600Z/ East Bay Hills and the Diablo Range-Santa Cruz Mountains- Santa Lucia Mountains and Los Padres National Forest- Mountains Of San Benito County And Interior Monterey County Including Pinnacles National Park-Northern Monterey Bay- Southern Monterey Bay and Big Sur Coast- Including the cities of Blackhawk, Scotts Valley, Boulder Creek, Day Valley, Santa Cruz, Watsonville, Live Oak, Seaside, Monterey, and Marina 1048 AM PST Wed Feb 28 2018 ...WIND ADVISORY REMAINS IN EFFECT FROM 7 AM TO 10 PM PST THURSDAY... a Wind Advisory remains in effect from 7 AM to 10 PM PST Thursday. * LOCATION: Santa Cruz, Santa Clara, Monterey and San Benito counties. * TIMING: 7 AM to 10 PM Thursday * WINDS: Wind from the south of 15 to 30 mph with local gusts in excess of 45 mph. Highest wind speeds will occur in higher elevation locations, especially ridge tops and peaks. * IMPACTS...Blowing debris, difficult driving conditions for high profile vehicles, and potential for downed trees and powerlines. 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. && $$
251 WWUS76 KMTR 281851 CCA NPWMTR URGENT - WEATHER MESSAGE...CORRECTED National Weather Service San Francisco Bay Area 1051 AM PST Wed Feb 28 2018 CAZ513-516-528-282000- /O.COR.KMTR.WI.Y.0004.180301T1500Z-180302T0600Z/ Santa Clara Valley Including San Jose- Southern Salinas Valley/Arroyo Seco and Lake San Antonio- Northern Salinas Valley/Hollister Valley and Carmel Valley- Including the cities of San Jose, Greenfield, King City, and Salinas 1051 AM PST Wed Feb 28 2018 ...WIND ADVISORY IS CANCELLED... The National Weather Service in San Francisco has cancelled the Wind Advisory. The Wind Advisory has been cancelled for the Salinas Valley and Santa Clara Valley as wind speeds will likely remain below criteria. However, breezy and locally gusty winds up to 35 mph will be possible ahead of and after a frontal passage on Thursday. $$ CAZ006-505>510-010600- /O.EXT.KMTR.WI.Y.0004.180301T1000Z-180302T0600Z/ 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- 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, and San Ramon 1051 AM PST Wed Feb 28 2018 ...WIND ADVISORY NOW IN EFFECT FROM 2 AM TO 10 PM PST THURSDAY... The Wind Advisory is now in effect from 2 AM to 10 PM PST Thursday. * LOCATION: North Bay and the San Francisco Bay Region * TIMING: 2 AM to 10 PM Thursday * WINDS: Wind from the south of 15 to 30 mph with local gusts in excess of 45 mph. Highest wind speeds will occur in higher elevation locations, especially ridge tops and peaks. * IMPACTS...Blowing debris, difficult driving conditions for high profile vehicles, and potential for downed trees and powerlines. 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. && $$ CAZ511-512-517-518-529-530-010600- /O.CON.KMTR.WI.Y.0004.180301T1500Z-180302T0600Z/ East Bay Hills and the Diablo Range-Santa Cruz Mountains- Santa Lucia Mountains and Los Padres National Forest- Mountains Of San Benito County And Interior Monterey County Including Pinnacles National Park-Northern Monterey Bay- Southern Monterey Bay and Big Sur Coast- Including the cities of Blackhawk, Scotts Valley, Boulder Creek, Day Valley, Santa Cruz, Watsonville, Live Oak, Seaside, Monterey, and Marina 1051 AM PST Wed Feb 28 2018 ...WIND ADVISORY REMAINS IN EFFECT FROM 7 AM TO 10 PM PST THURSDAY... a Wind Advisory remains in effect from 7 AM to 10 PM PST Thursday. * LOCATION: Santa Cruz, Santa Clara, Monterey and San Benito counties. * TIMING: 7 AM to 10 PM Thursday * WINDS: Wind from the south of 15 to 30 mph with local gusts in excess of 45 mph. Highest wind speeds will occur in higher elevation locations, especially ridge tops and peaks. * IMPACTS...Blowing debris, difficult driving conditions for high profile vehicles, and potential for downed trees and powerlines. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Wind Advisory means that winds of 35 mph are expected. Winds this strong can make driving difficult...especially for high profile vehicles. Use extra caution. && $$
186 WWUS76 KMTR 010544 NPWMTR URGENT - WEATHER MESSAGE National Weather Service San Francisco Bay Area 944 PM PST Wed Feb 28 2018 CAZ006-505>510-011800- /O.CON.KMTR.WI.Y.0004.180301T1000Z-180302T0600Z/ 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- 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, and San Ramon 944 PM PST Wed Feb 28 2018 ...WIND ADVISORY REMAINS IN EFFECT FROM 2 AM TO 10 PM PST THURSDAY... a Wind Advisory remains in effect from 2 AM to 10 PM PST Thursday. * LOCATION: North Bay and the San Francisco Bay Region * TIMING: 2 AM to 10 PM Thursday * WINDS: Wind from the south of 15 to 30 mph with local gusts in excess of 45 mph. Highest wind speeds will occur in higher elevation locations, especially ridge tops and peaks. * IMPACTS...Blowing debris, difficult driving conditions for high profile vehicles, and potential for downed trees and powerlines. 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. && $$ CAZ511-512-517-518-529-530-011800- /O.CON.KMTR.WI.Y.0004.180301T1500Z-180302T0600Z/ East Bay Hills and the Diablo Range-Santa Cruz Mountains- Santa Lucia Mountains and Los Padres National Forest- Mountains Of San Benito County And Interior Monterey County Including Pinnacles National Park-Northern Monterey Bay- Southern Monterey Bay and Big Sur Coast- Including the cities of Blackhawk, Scotts Valley, Boulder Creek, Day Valley, Santa Cruz, Watsonville, Live Oak, Seaside, Monterey, and Marina 944 PM PST Wed Feb 28 2018 ...WIND ADVISORY REMAINS IN EFFECT FROM 7 AM TO 10 PM PST THURSDAY... a Wind Advisory remains in effect from 7 AM to 10 PM PST Thursday. * LOCATION: Santa Cruz, Santa Clara, Monterey and San Benito counties. * TIMING: 7 AM to 10 PM Thursday * WINDS: Wind from the south of 15 to 30 mph with local gusts in excess of 45 mph. Highest wind speeds will occur in higher elevation locations, especially ridge tops and peaks. * IMPACTS...Blowing debris, difficult driving conditions for high profile vehicles, and potential for downed trees and powerlines. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Wind Advisory means that winds of 35 mph are expected. Winds this strong can make driving difficult...especially for high profile vehicles. Use extra caution. && $$
354 WWUS76 KMTR 012029 NPWMTR URGENT - WEATHER MESSAGE National Weather Service San Francisco Bay Area 1229 PM PST Thu Mar 1 2018 ...Very gusty winds impacting Bay Area Higher Terrain... .A passing storm system will produce gusty winds around the Bay Area through this evening. Winds will be strongest over the higher terrain, ridges and mountain peaks. Breezy to occasionally gusty winds will be possible over lower terrain. CAZ006-505-506-508>510-529-530-012130- /O.CAN.KMTR.WI.Y.0004.000000T0000Z-180302T0600Z/ San Francisco- Coastal North Bay Including Point Reyes National Seashore- North Bay Interior Valleys-San Francisco Bay Shoreline- San Francisco Peninsula Coast-East Bay Interior Valleys- Northern Monterey Bay-Southern Monterey Bay and Big Sur Coast- Including the cities of San Francisco, Tamalpais-Homestead, Sausalito, Santa Rosa, South Santa Rosa, Napa, San Rafael, Petaluma, Novato, Rohnert Park, Oakland, Fremont, Hayward, Daly City, Berkeley, Pacifica, Concord, Antioch, Livermore, Walnut Creek, Pleasanton, Pittsburg, San Ramon, Santa Cruz, Watsonville, Live Oak, Seaside, Monterey, and Marina 1229 PM PST Thu Mar 1 2018 ...WIND ADVISORY IS CANCELLED... The National Weather Service in San Francisco has cancelled the Wind Advisory. Gusty will still be possible through this evening, but not strong enough to warrant a Wind Advisory. $$ CAZ507-511-512-517-518-020600- /O.CON.KMTR.WI.Y.0004.000000T0000Z-180302T0600Z/ North Bay Mountains-East Bay Hills and the Diablo Range- Santa Cruz Mountains- Santa Lucia Mountains and Los Padres National Forest- Mountains Of San Benito County And Interior Monterey County Including Pinnacles National Park- Including the cities of Angwin, Lagunitas-Forest Knolls, Woodacre, Blackhawk, Scotts Valley, Boulder Creek, and Day Valley 1229 PM PST Thu Mar 1 2018 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 10 PM PST THIS EVENING... A Wind Advisory remains in effect until 10 PM PST this evening. * LOCATION: Higher elevations around the Bay Area, generally 1,000 feet and above. * TIMING: through 10 PM Thursday * WINDS: Wind from the south of 15 to 30 mph with local gusts in excess of 45 mph. Highest wind speeds will occur in higher elevation locations, especially ridge tops and peaks. * IMPACTS...Blowing debris, difficult driving conditions for high profile vehicles, and potential for downed trees and powerlines. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Wind Advisory means that winds of 35 mph are expected. Winds this strong can make driving difficult...especially for high profile vehicles. Use extra caution. && $$
286 WWUS76 KMTR 020554 NPWMTR URGENT - WEATHER MESSAGE National Weather Service San Francisco Bay Area 954 PM PST Thu Mar 1 2018 CAZ507-511-512-517-518-020700- /O.EXP.KMTR.WI.Y.0004.000000T0000Z-180302T0600Z/ North Bay Mountains-East Bay Hills and the Diablo Range- Santa Cruz Mountains- Santa Lucia Mountains and Los Padres National Forest- Mountains Of San Benito County And Interior Monterey County Including Pinnacles National Park- Including the cities of Angwin, Lagunitas-Forest Knolls, Woodacre, Blackhawk, Scotts Valley, Boulder Creek, and Day Valley 954 PM PST Thu Mar 1 2018 ...WIND ADVISORY WILL EXPIRE AT 10 PM PST THIS EVENING... Winds will steadily decrease overnight. The Wind Advisory will expire at 10 PM PST this evening. $$
The office that day
Everything else NWS San Francisco Bay Area, CA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 28, 2:44 AM PST | Small Craft Advisory | MTR | 4 days |
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.