Alert archive / California / High Wind Warnings in 2023
High Wind Warning 3, NWS San Francisco Bay Area, CA
NWS San Francisco Bay Area, CA issued this high wind warning at Feb 21, 2023, 3:50 AM PST for 7 counties in California. It took effect at Feb 21, 2023, 1:17 PM PST. It was in force for 20 hr. 60 reports came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Feb 21, 2023, 3:50 AM PST (11:50 UTC)
- In effect from
- Feb 21, 2023, 1:17 PM PST
- Expired
- Feb 22, 2023, 9:00 AM PST
- In force
- 20 hr
- Issued by
- NWS San Francisco Bay Area, CA
Counties City and County of San Francisco, CA, Marin County, CA, Monterey County, CA, San Benito County, CA, San Mateo County, CA, Santa Cruz County, CA, Sonoma County, CA
The radar
The San Francisco radar (KMUX), 32 km from the middle of the area, began a volume at 11:48 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 was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Feb 21, 1:30 PM PST | NON-TSTM WND DMG | 3 Nw Healdsburg, CA | PORTA-POTTY BEING BLOWN DOWN THE ROAD AND LARGE TRASH DUMPSTERS BLOWN OUT ONTO THE RUNWAY. |
| Feb 21, 1:33 PM PST | NON-TSTM WND GST 60 | Lucas Valley-Marinwood, CA | MESONET STATION NBRC1 BIG ROCK. |
| Feb 21, 1:42 PM PST | NON-TSTM WND GST 60 | 2 Ene Redwood City, CA | MESONET STATION RTYC1 PORT OF REDWOOD CITY. |
| Feb 21, 1:51 PM PST | NON-TSTM WND DMG | 1 Wsw Boulder Creek, CA | BRANCH CAME DOWN AND TOOK DOWN LINES, POSSIBLY CABLE LINES. |
| Feb 21, 1:54 PM PST | NON-TSTM WND DMG | 1 Wnw Ben Lomond, CA | POWER POLE SNAPPED IN HALF, HANGING ON WIRES. |
| Feb 21, 1:57 PM PST | NON-TSTM WND GST 56 | 2 Nw Pacifica, CA | MESONET STATION AV684 PACIFICA. |
| Feb 21, 2:01 PM PST | NON-TSTM WND DMG | 1 S Sonoma, CA | REPORT FROM MPING: 1-INCH TREE LIMBS BROKEN; SHINGLES BLOWN OFF. |
| Feb 21, 2:18 PM PST | NON-TSTM WND DMG | 2 Ese Del Monte Forest, CA | POWER POLE DOWN ACROSS THE ROAD. |
| Feb 21, 2:20 PM PST | NON-TSTM WND DMG | 1 Se Aptos, CA | WIRES DOWN ACROSS ROADWAY, TREE DOWN NEAR ROADWAY. |
| Feb 21, 2:43 PM PST | NON-TSTM WND DMG | 2 Ne Del Monte Forest, CA | DOWNED PINE TREE IN BOTH LANES OF CA 68. |
| Feb 21, 2:52 PM PST | NON-TSTM WND DMG | 1 Nw Carmel Valley Vill, CA | POWER LINES DOWN IN ROAD. |
| Feb 21, 3:00 PM PST | NON-TSTM WND GST 63 | 4 Nw Lagunitas-Forest K, CA | MESONET STATION PG041 3.6 NW LAGUNITAS-FOREST KNOLLS (PGE). |
| Feb 21, 3:13 PM PST | NON-TSTM WND DMG | 1 W Ben Lomond, CA | TREE DOWN ON POWER LINES. |
| Feb 21, 3:17 PM PST | NON-TSTM WND DMG | Graton, CA | 30-40 FOOT TREE BLOCKING THE EB LANE OF CA 116. |
| Feb 21, 3:22 PM PST | NON-TSTM WND GST 68 | 2 N Burlingame, CA | PEAK GUST AT ASOS STATION KSFO SAN FRANCISCO AIRPORT. |
| Feb 21, 3:35 PM PST | NON-TSTM WND DMG | 2 Ene Atherton, CA | LARGE TREE DOWN IN ROAD. |
| Feb 21, 3:35 PM PST | NON-TSTM WND DMG | Santa Rosa, CA | APPROXIMATE LOCATION. DOWNED TREES AND ROOFS BLOWN OFF MOBILE HOMES. |
| Feb 21, 3:36 PM PST | NON-TSTM WND DMG | 3 N Soquel, CA | TREE DOWN ON POWER LINES. |
| Feb 21, 3:53 PM PST | NON-TSTM WND DMG | 21 Wsw Cloverdale, CA | LARGE TREE IN THE ROADWAY. |
| Feb 21, 3:57 PM PST | NON-TSTM WND DMG | 2 Nne Santa Cruz, CA | TREE BLOCKING THE #2 LANE OF SB CA 17 AT PASATIEMPO. |
| Feb 21, 3:58 PM PST | NON-TSTM WND DMG | 2 Wsw Felton, CA | LARGE TREE ACROSS ROADWAY. |
| Feb 21, 4:10 PM PST | NON-TSTM WND GST 58 | 7 Ssw Gonzales, CA | MESONET STATION PG624 PALO ESCRITO. |
| Feb 21, 4:13 PM PST | NON-TSTM WND DMG | 4 W Lexington Hills, CA | POLE AND CABLE DOWN IN ROADWAY. |
| Feb 21, 4:15 PM PST | NON-TSTM WND DMG | 1 Nne Broadmoor, CA | LARGE TREE BRANCH IN THE RIGHT LANE OF JOHN DALY BLVD ONRAMP TO NB I 280. |
| Feb 21, 4:21 PM PST | NON-TSTM WND DMG | 5 Nnw Glen Ellen, CA | LARGE TREE FELL ON ADOBE CANYON RD AT CA 12 BLOCKING THE RIGHT HAND LANE. |
| Feb 21, 4:22 PM PST | NON-TSTM WND DMG | 3 Ssw Scotts Valley, CA | TREE DOWN BLOCKING ONE LANE OF SB CA 17 AT SIMS RD. |
| Feb 21, 4:24 PM PST | NON-TSTM WND DMG | 1 Nw Freedom, CA | TREE DOWN ON CALABASAS ROAD BLOCKING BOTH LANES. |
| Feb 21, 4:26 PM PST | NON-TSTM WND GST 63 | 2 Ene San Mateo, CA | MESONET STATION XMPT MARINERS POINT. |
| Feb 21, 4:27 PM PST | NON-TSTM WND DMG | 23 Wsw Cloverdale, CA | TREE DOWN ON ROAD, REQUIRING CHAIN SAW. |
| Feb 21, 4:30 PM PST | NON-TSTM WND GST 64 | 7 Ene Carmel Valley Vil, CA | MESONET STATION PG318 7.0 E CARMEL VALLEY VILL (PGE). |
| Feb 21, 4:36 PM PST | NON-TSTM WND DMG | 1 Ne Prunedale, CA | TREE DOWN ON THE RIGHT LANE OF SB US 101 BETWEEN TUSTIN AND ECHO VALLEY RD. |
| Feb 21, 5:00 PM PST | NON-TSTM WND GST 58 | 7 Ene Carmel Valley Vil, CA | MESONET STATION PG948 CORRAL DE CIELO ROAD. |
| Feb 21, 5:01 PM PST | NON-TSTM WND DMG | 13 Se Hollister, CA | EUCALYPTUS TREE DOWN ACROSS BOTH LANES OF PANOCHE RD. |
| Feb 21, 5:10 PM PST | NON-TSTM WND GST 66 | 2 Ene Soledad, CA | MESONET STATION PG542 PINNACLES NATIONAL PARK. |
| Feb 21, 5:10 PM PST | NON-TSTM WND DMG | 2 Ne Scotts Valley, CA | POWER LINE DOWN ONTO ROADWAY. |
| Feb 21, 5:20 PM PST | NON-TSTM WND DMG | 1 Ssw Larkfield-Wikiup, CA | SHED BLEW INTO THE ROADWAY. |
| Feb 21, 5:21 PM PST | NON-TSTM WND DMG | 23 Wsw Cloverdale, CA | VERY LARGE TREE BLOCKING BOTH LANES OF CA 1 AT ANNAPOLIS RD. |
| Feb 21, 5:27 PM PST | NON-TSTM WND GST 59 | 9 Wsw Boulder Creek, CA | MESONET STATION XWAD LAS TRANCAS. |
| Feb 21, 5:34 PM PST | NON-TSTM WND DMG | 3 Nw Forestville, CA | TREE DOWN INTO POWER LINES, STARTING A FIRE. |
| Feb 21, 5:36 PM PST | NON-TSTM WND DMG | 1 Sse San Bruno, CA | TREE DOWN BLOCKING ONRAMP FROM CRYSTAL SPRINGS RD TO NB I 280. |
| Feb 21, 5:40 PM PST | NON-TSTM WND GST 64 | 1 Ese Pacifica, CA | MESONET STATION 180PG SWEENEY RIDGE. |
| Feb 21, 5:42 PM PST | NON-TSTM WND DMG | 1 Ese Highlands, CA | TWO BRANCHES BLO0CKING THE SLOW LANE ON WB CA 92 AT RALSTON AVE. |
| Feb 21, 5:48 PM PST | NON-TSTM WND DMG | 1 W Colma, CA | FALLEN TREE BLOCKING THE SLOW LANE OF NB I 280 AT SERRAMONTE BLVD. |
| Feb 21, 5:48 PM PST | NON-TSTM WND DMG | 20 Ne Soledad, CA | 30 FT TALL TREE DOWN ACROSS THE ENTIRE ROADWAY. |
| Feb 21, 5:49 PM PST | NON-TSTM WND DMG | 5 Nw Boulder Creek, CA | BOTH LANES BLOCKED WITH TWO TREES DOWN. |
| Feb 21, 5:52 PM PST | NON-TSTM WND DMG | 1 Wnw Santa Cruz, CA | WIRES DOWN. |
| Feb 21, 6:16 PM PST | NON-TSTM WND DMG | 1 S Millbrae, CA | TREE DOWN BLOCKING THE #1 LANE ON NB I 280 AT TROUSDALE DR. |
| Feb 21, 6:27 PM PST | NON-TSTM WND DMG | 1 E Aptos, CA | WIRES IN ROADWAY. |
| Feb 21, 6:27 PM PST | NON-TSTM WND DMG | 1 Sw Scotts Valley, CA | LARGE BRANCH BLOCKING ONE LANE. VIA TWITTER. |
| Feb 21, 6:28 PM PST | NON-TSTM WND DMG | 3 Ssw Lexington Hills, CA | POWER LINE DOWN ACROSS ROADWAY. |
| Feb 21, 6:36 PM PST | NON-TSTM WND DMG | 3 Ssw Inverness, CA | APPROXIMATE LOCATION. MT. VISION AND LIMANTOUR ROADS IN POINT REYES NATIONAL SEASHORE CLOSED DUE TO DOWNED TREES. |
| Feb 21, 6:45 PM PST | NON-TSTM WND DMG | 1 Wsw Montara, CA | TREE DOWN, PARTIALLY BLOCKING ROAD AND TOUCHING POWER LINES. |
| Feb 21, 6:50 PM PST | NON-TSTM WND GST 58 | 7 Nnw Calistoga, CA | MESONET STATION PG132 MT ST HELENA. |
| Feb 21, 7:01 PM PST | NON-TSTM WND DMG | 5 Ne Boulder Creek, CA | WIRES IN ROADWAY. |
| Feb 21, 7:07 PM PST | NON-TSTM WND DMG | 2 Nne Santa Cruz, CA | LARGE BRANCH IN THE FAST LANE ON SB CA 17 AT PASATIEMPO DR. |
| Feb 21, 7:28 PM PST | NON-TSTM WND DMG | 1 Wsw Del Monte Forest, CA | LARGE TREE DOWN ON BOTH LANES OF ROAD. |
| Feb 21, 7:40 PM PST | NON-TSTM WND GST 59 | 12 Sw Carmel Valley Vil, CA | MESONET STATION PG409 12.4 SW CARMEL VALLEY VILL (PGE). |
| Feb 21, 7:46 PM PST | NON-TSTM WND DMG | 1 Sw Millbrae, CA | TREE DOWN IN LANES OF SB I 280 AT MILLBRAE AVE. |
| Feb 21, 7:57 PM PST | NON-TSTM WND GST 64 | 31 Ene King City, CA | MESONET STATION SRTC1 SANTA RITA. |
| Feb 21, 8:14 PM PST | NON-TSTM WND DMG | 1 Sse Monterey, CA | TREE DOWN ACROSS THE ENTIRE ROAD. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Oakland, CA (KOAK), launched 00:00Z, 11.8 hours before the alert went out and 39 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
- 2089 m above ground
- 0-6 km bulk shear
- 40 kt
- 0-1 km storm-relative helicity
- 25 m²/s²
- 0-3 km storm-relative helicity
- 8 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
106 WWUS76 KMTR 211150 NPWMTR URGENT - WEATHER MESSAGE National Weather Service San Francisco Bay Area 350 AM PST Tue Feb 21 2023 CAZ517-518-212000- /O.UPG.KMTR.WI.Y.0011.230221T2100Z-230222T2100Z/ /O.NEW.KMTR.HW.W.0003.230222T0000Z-230222T1700Z/ /O.CON.KMTR.FZ.A.0005.230223T0800Z-230223T1700Z/ Santa Lucia Mountains and Los Padres National Forest- Mountains of San Benito and Interior Monterey County including Pinnacles National Park- 350 AM PST Tue Feb 21 2023 ...HIGH WIND WARNING IN EFFECT FROM 4 PM THIS AFTERNOON TO 9 AM PST WEDNESDAY... ...FREEZE WATCH REMAINS IN EFFECT FROM LATE WEDNESDAY NIGHT THROUGH THURSDAY MORNING... * WHAT...For the High Wind Warning, northwest winds 25 to 35 mph with gusts up to 65 mph expected. For the Freeze Watch, sub- freezing temperatures as low as 29 possible. * WHERE...Santa Lucia Mountains and Los Padres National Forest and Mountains of San Benito and Interior Monterey County including Pinnacles National Park. * WHEN...For the High Wind Warning, from 4 PM this afternoon to 9 AM PST Wednesday. For the Freeze Watch, from late Wednesday night through Thursday morning. * IMPACTS...Damaging winds will blow down trees and power lines. Widespread power outages are expected. Travel will be difficult, especially for high profile vehicles. Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. PRECAUTIONARY/PREPAREDNESS ACTIONS... People should avoid being outside in forested areas and around trees and branches. If possible, remain in the lower levels of your home during the windstorm, and avoid windows. Use caution if you must drive. Take steps now to protect tender plants from the cold. To prevent freezing and possible bursting of outdoor water pipes they should be wrapped, drained, or allowed to drip slowly. Those that have in-ground sprinkler systems should drain them and cover above- ground pipes to protect them from freezing. && $$ CAZ006-502-503-505-508-509-528>530-212000- /O.CON.KMTR.WI.Y.0011.230221T2100Z-230222T2100Z/ /O.CON.KMTR.FR.Y.0007.230223T0800Z-230223T1700Z/ San Francisco-Marin Coastal Range-Sonoma Coastal Range- Coastal North Bay...Including Point Reyes National Seashore- San Francisco Bay Shoreline-San Francisco Peninsula Coast- Northern Salinas Valley...Hollister Valley...and Carmel Valley- Northern Monterey Bay-Southern Monterey Bay and Big Sur Coast- 350 AM PST Tue Feb 21 2023 ...WIND ADVISORY REMAINS IN EFFECT FROM 1 PM THIS AFTERNOON TO 1 PM PST WEDNESDAY... ...FROST ADVISORY REMAINS IN EFFECT FROM MIDNIGHT WEDNESDAY NIGHT TO 9 AM PST THURSDAY... * WHAT...For the Wind Advisory, northwest winds 25 to 35 mph with gusts up to 50 mph expected at higher elevations. For the Frost Advisory, temperatures as low as 34 will result in frost formation. * WHERE...Coastal areas of Sonoma County, Marin County, San Mateo County, Santa Cruz County, and Monterey County including the Northern Salinas Valley, as well as the City of San Franscico and areas along the San Francisco Bay Shoreline. * WHEN...For the Wind Advisory, from 1 PM this afternoon to 1 PM PST Wednesday. For the Frost Advisory, from midnight Wednesday night to 9 AM PST Thursday. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. Cold temperatures will impact unsheltered or marginally sheltered populations. Frost could kill sensitive outdoor vegetation if left uncovered. * ADDITIONAL DETAILS...Don't forget to protect people, pets, plants, and pipes. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. Take steps now to protect tender plants from the cold. && $$ CAZ504-506-510-512>516-212000- /O.CON.KMTR.WI.Y.0011.230221T2100Z-230222T2100Z/ /O.CON.KMTR.FZ.A.0005.230223T0800Z-230223T1700Z/ North Bay Interior Mountains-North Bay Interior Valleys- East Bay Interior Valleys-Santa Cruz Mountains- Santa Clara Valley...including San Jose-Eastern Santa Clara Hills- East Bay Hills- Southern Salinas Valley...Arroyo Seco...and Lake San Antonio- 350 AM PST Tue Feb 21 2023 ...WIND ADVISORY REMAINS IN EFFECT FROM 1 PM THIS AFTERNOON TO 1 PM PST WEDNESDAY... ...FREEZE WATCH REMAINS IN EFFECT FROM LATE WEDNESDAY NIGHT THROUGH THURSDAY MORNING... * WHAT...For the Wind Advisory, northwest winds 25 to 35 mph with gusts up to 60 mph expected at higher elevations. For the Freeze Watch, sub-freezing temperatures as low as 29 degrees is expected. * WHERE...Interior areas of the North Bay Mountains and Valleys, the East Bay Hills and Valleys, the Santa Clara Valley, the Santa Cruz Mountains, and interior Monterey and San Benito Counties including the Southern Salinas Valley. * WHEN...For the Wind Advisory, from 1 PM this afternoon to 1 PM PST Wednesday. For the Freeze Watch, from late Wednesday night through Thursday morning. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. * ADDITIONAL DETAILS...Don't forget to protect people, pets, plants, and pipes. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. Take steps now to protect tender plants from the cold. To prevent freezing and possible bursting of outdoor water pipes they should be wrapped, drained, or allowed to drip slowly. Those that have in-ground sprinkler systems should drain them and cover above- ground pipes to protect them from freezing. && $$ For more information from the National Weather Service visit https://weather.gov/mtr
4 follow-up statements
780 WWUS76 KMTR 211916 NPWMTR URGENT - WEATHER MESSAGE National Weather Service San Francisco Bay Area 1116 AM PST Tue Feb 21 2023 CAZ517-518-220000- /O.CON.KMTR.HW.W.0003.230222T0000Z-230222T1700Z/ /O.CON.KMTR.FZ.A.0005.230223T0800Z-230223T1700Z/ Santa Lucia Mountains and Los Padres National Forest- Mountains of San Benito and Interior Monterey County including Pinnacles National Park- 1116 AM PST Tue Feb 21 2023 ...HIGH WIND WARNING REMAINS IN EFFECT FROM 4 PM THIS AFTERNOON TO 9 AM PST WEDNESDAY... ...FREEZE WATCH REMAINS IN EFFECT FROM LATE WEDNESDAY NIGHT THROUGH THURSDAY MORNING... * WHAT...For the High Wind Warning, northwest winds 25 to 35 mph with gusts up to 65 mph expected. For the Freeze Watch, sub- freezing temperatures as low as 29 possible. * WHERE...Santa Lucia Mountains and Los Padres National Forest and Mountains of San Benito and Interior Monterey County including Pinnacles National Park. * WHEN...For the High Wind Warning, from 4 PM this afternoon to 9 AM PST Wednesday. For the Freeze Watch, from late Wednesday night through Thursday morning. * IMPACTS...Damaging winds will blow down trees and power lines. Widespread power outages are expected. Travel will be difficult, especially for high profile vehicles. Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. PRECAUTIONARY/PREPAREDNESS ACTIONS... People should avoid being outside in forested areas and around trees and branches. If possible, remain in the lower levels of your home during the windstorm, and avoid windows. Use caution if you must drive. Take steps now to protect tender plants from the cold. To prevent freezing and possible bursting of outdoor water pipes they should be wrapped, drained, or allowed to drip slowly. Those that have in-ground sprinkler systems should drain them and cover above- ground pipes to protect them from freezing. && $$ CAZ006-502-503-505-508-509-528>530-220000- /O.CON.KMTR.WI.Y.0011.230221T2100Z-230222T2100Z/ /O.CON.KMTR.FR.Y.0007.230223T0800Z-230223T1700Z/ San Francisco-Marin Coastal Range-Sonoma Coastal Range- Coastal North Bay...Including Point Reyes National Seashore- San Francisco Bay Shoreline-San Francisco Peninsula Coast- Northern Salinas Valley...Hollister Valley...and Carmel Valley- Northern Monterey Bay-Southern Monterey Bay and Big Sur Coast- 1116 AM PST Tue Feb 21 2023 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 1 PM PST WEDNESDAY... ...FROST ADVISORY REMAINS IN EFFECT FROM MIDNIGHT WEDNESDAY NIGHT TO 9 AM PST THURSDAY... * WHAT...For the Wind Advisory, northwest winds 25 to 35 mph with gusts up to 50 mph expected at higher elevations. For the Frost Advisory, temperatures as low as 34 will result in frost formation. * WHERE...Coastal areas of Sonoma County, Marin County, San Mateo County, Santa Cruz County, and Monterey County including the Northern Salinas Valley, as well as the City of San Franscico and areas along the San Francisco Bay Shoreline. * WHEN...For the Wind Advisory, until 1 PM PST Wednesday. For the Frost Advisory, from midnight Wednesday night to 9 AM PST Thursday. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. Cold temperatures will impact unsheltered or marginally sheltered populations. Frost could kill sensitive outdoor vegetation if left uncovered. * ADDITIONAL DETAILS...Don't forget to protect people, pets, plants, and pipes. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. Take steps now to protect tender plants from the cold. && $$ CAZ504-506-510-512>516-220000- /O.CON.KMTR.WI.Y.0011.230221T2100Z-230222T2100Z/ /O.CON.KMTR.FZ.A.0005.230223T0800Z-230223T1700Z/ North Bay Interior Mountains-North Bay Interior Valleys- East Bay Interior Valleys-Santa Cruz Mountains- Santa Clara Valley...including San Jose-Eastern Santa Clara Hills- East Bay Hills- Southern Salinas Valley...Arroyo Seco...and Lake San Antonio- 1116 AM PST Tue Feb 21 2023 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 1 PM PST WEDNESDAY... ...FREEZE WATCH REMAINS IN EFFECT FROM LATE WEDNESDAY NIGHT THROUGH THURSDAY MORNING... * WHAT...For the Wind Advisory, northwest winds 25 to 35 mph with gusts up to 60 mph expected at higher elevations. For the Freeze Watch, sub-freezing temperatures as low as 29 degrees is expected. * WHERE...Interior areas of the North Bay Mountains and Valleys, the East Bay Hills and Valleys, the Santa Clara Valley, the Santa Cruz Mountains, and interior Monterey and San Benito Counties including the Southern Salinas Valley. * WHEN...For the Wind Advisory, until 1 PM PST Wednesday. For the Freeze Watch, from late Wednesday night through Thursday morning. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. * ADDITIONAL DETAILS...Don't forget to protect people, pets, plants, and pipes. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. Take steps now to protect tender plants from the cold. To prevent freezing and possible bursting of outdoor water pipes they should be wrapped, drained, or allowed to drip slowly. Those that have in-ground sprinkler systems should drain them and cover above- ground pipes to protect them from freezing. && $$ For more information from the National Weather Service visit https://weather.gov/mtr
905 WWUS76 KMTR 212117 NPWMTR URGENT - WEATHER MESSAGE National Weather Service San Francisco Bay Area 117 PM PST Tue Feb 21 2023 ...Potent system bringing gusty winds and plummeting temperatures... CAZ006-505-509-530-221200- /O.UPG.KMTR.WI.Y.0011.000000T0000Z-230222T2100Z/ /O.EXB.KMTR.HW.W.0003.230221T2117Z-230222T1700Z/ /O.CON.KMTR.FR.Y.0007.230223T0800Z-230223T1700Z/ San Francisco- Coastal North Bay...Including Point Reyes National Seashore- San Francisco Peninsula Coast- Southern Monterey Bay and Big Sur Coast- 117 PM PST Tue Feb 21 2023 ...HIGH WIND WARNING IN EFFECT UNTIL 9 AM PST WEDNESDAY... ...FROST ADVISORY REMAINS IN EFFECT FROM MIDNIGHT WEDNESDAY NIGHT TO 9 AM PST THURSDAY... * WHAT...For the High Wind Warning, northwest winds 25 to 35 mph with gusts up to 60 mph. For the Frost Advisory Wednesday night into Thursday morning, temperatures will dip as low as 33. * WHERE...San Francisco, Coastal North Bay, Including Point Reyes National Seashore, San Francisco Peninsula Coast and Southern Monterey Bay and Big Sur Coast. * WHEN...For the High Wind Warning, until 9 AM PST Wednesday. For the Frost Advisory, from midnight Wednesday night to 9 AM PST Thursday. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. Cold temperatures will impact unsheltered or marginally sheltered populations. Frost could kill sensitive outdoor vegetation if left uncovered. * ADDITIONAL DETAILS...Don't forget to protect people, pets, plants, and pipes. PRECAUTIONARY/PREPAREDNESS ACTIONS... People should avoid being outside in forested areas and around trees and branches. If possible, remain in the lower levels of your home during the windstorm, and avoid windows. Use caution if you must drive. Take steps now to protect tender plants from the cold. && $$ CAZ517-518-221200- /O.EXT.KMTR.HW.W.0003.230221T2117Z-230222T1700Z/ /O.CON.KMTR.FZ.A.0005.230223T0800Z-230223T1700Z/ Santa Lucia Mountains and Los Padres National Forest- Mountains of San Benito and Interior Monterey County including Pinnacles National Park- 117 PM PST Tue Feb 21 2023 ...HIGH WIND WARNING NOW IN EFFECT UNTIL 9 AM PST WEDNESDAY... ...FREEZE WATCH REMAINS IN EFFECT FROM LATE WEDNESDAY NIGHT THROUGH THURSDAY MORNING... * WHAT...For the High Wind Warning, northwest winds 25 to 35 mph with gusts up to 65 mph expected. For the Freeze Watch, sub- freezing temperatures as low as the upper 20s. * WHERE...Santa Lucia Mountains and Los Padres National Forest and Mountains of San Benito and Interior Monterey County including Pinnacles National Park. * WHEN...For the High Wind Warning, until 9 AM PST Wednesday. For the Freeze Watch, from late Wednesday night through Thursday morning. * IMPACTS...Damaging winds will blow down trees and power lines. Widespread power outages are expected. Travel will be difficult, especially for high profile vehicles. Cold temperatures will impact unsheltered or marginally sheltered populations. Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. * ADDITIONAL DETAILS...Don't forget to protect people, pets, plants, and pipes. PRECAUTIONARY/PREPAREDNESS ACTIONS... People should avoid being outside in forested areas and around trees and branches. If possible, remain in the lower levels of your home during the windstorm, and avoid windows. Use caution if you must drive. Take steps now to protect tender plants from the cold. To prevent freezing and possible bursting of outdoor water pipes they should be wrapped, drained, or allowed to drip slowly. Those that have in-ground sprinkler systems should drain them and cover above- ground pipes to protect them from freezing. && $$ CAZ506-221200- /O.NEW.KMTR.FR.Y.0008.230222T0800Z-230222T1700Z/ /O.CON.KMTR.WI.Y.0011.000000T0000Z-230222T2100Z/ /O.CON.KMTR.FZ.A.0005.230223T0800Z-230223T1700Z/ North Bay Interior Valleys- 117 PM PST Tue Feb 21 2023 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 1 PM PST WEDNESDAY... ...FROST ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO 9 AM PST WEDNESDAY... ...FREEZE WATCH REMAINS IN EFFECT FROM LATE WEDNESDAY NIGHT THROUGH THURSDAY MORNING... * WHAT...For the Wind Advisory, northwest winds 20 to 30 mph with gusts up to 45 mph. For the Frost Advisory, temperatures as low as 33 will result in frost formation. For the Freeze Watch, sub- freezing temperatures as low as 30 possible. * WHERE...North Bay Interior Valleys. * WHEN...For the Wind Advisory, until 1 PM PST Wednesday. For the Frost Advisory, from midnight tonight to 9 AM PST Wednesday. For the Freeze Watch, from late Wednesday night through Thursday morning. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. Cold temperatures will impact unsheltered or marginally sheltered populations. Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. * ADDITIONAL DETAILS... Cold temperatures will impact unsheltered or marginally sheltered populations.. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. Take steps now to protect tender plants from the cold. To prevent freezing and possible bursting of outdoor water pipes they should be wrapped, drained, or allowed to drip slowly. Those that have in-ground sprinkler systems should drain them and cover above- ground pipes to protect them from freezing. && $$ CAZ502-503-508-528-529-221200- /O.CON.KMTR.WI.Y.0011.000000T0000Z-230222T2100Z/ /O.CON.KMTR.FR.Y.0007.230223T0800Z-230223T1700Z/ Marin Coastal Range-Sonoma Coastal Range- San Francisco Bay Shoreline- Northern Salinas Valley...Hollister Valley...and Carmel Valley- Northern Monterey Bay- 117 PM PST Tue Feb 21 2023 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 1 PM PST WEDNESDAY... ...FROST ADVISORY REMAINS IN EFFECT FROM MIDNIGHT WEDNESDAY NIGHT TO 9 AM PST THURSDAY... * WHAT...For the Wind Advisory, northwest winds 25 to 35 mph with gusts up to 50 mph expected at higher elevations. For the Frost Advisory, temperatures as low as 34 will result in frost formation. * WHERE...Coastal areas of Sonoma County, Marin County, San Mateo County, Santa Cruz County, and Monterey County including the Northern Salinas Valley, as well as the City of San Francisco and areas along the San Francisco Bay Shoreline. * WHEN...For the Wind Advisory, until 1 PM PST Wednesday. For the Frost Advisory, from midnight Wednesday night to 9 AM PST Thursday. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. Cold temperatures will impact unsheltered or marginally sheltered populations. Frost could kill sensitive outdoor vegetation if left uncovered. * ADDITIONAL DETAILS...Don't forget to protect people, pets, plants, and pipes. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. Take steps now to protect tender plants from the cold. && $$ CAZ504-510-512>516-221200- /O.CON.KMTR.WI.Y.0011.000000T0000Z-230222T2100Z/ /O.CON.KMTR.FZ.A.0005.230223T0800Z-230223T1700Z/ North Bay Interior Mountains-East Bay Interior Valleys- Santa Cruz Mountains-Santa Clara Valley...including San Jose- Eastern Santa Clara Hills-East Bay Hills- Southern Salinas Valley...Arroyo Seco...and Lake San Antonio- 117 PM PST Tue Feb 21 2023 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 1 PM PST WEDNESDAY... ...FREEZE WATCH REMAINS IN EFFECT FROM LATE WEDNESDAY NIGHT THROUGH THURSDAY MORNING... * WHAT...For the Wind Advisory, northwest winds 25 to 35 mph with gusts up to 60 mph expected at higher elevations. For the Freeze Watch, sub-freezing temperatures as low as 29 degrees is expected. * WHERE...Interior areas of the North Bay Mountains and Valleys, the East Bay Hills and Valleys, the Santa Clara Valley, the Santa Cruz Mountains, and interior Monterey and San Benito Counties including the Southern Salinas Valley. * WHEN...For the Wind Advisory, until 1 PM PST Wednesday. For the Freeze Watch, from late Wednesday night through Thursday morning. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. * ADDITIONAL DETAILS...Don't forget to protect people, pets, plants, and pipes. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. Take steps now to protect tender plants from the cold. To prevent freezing and possible bursting of outdoor water pipes they should be wrapped, drained, or allowed to drip slowly. Those that have in-ground sprinkler systems should drain them and cover above- ground pipes to protect them from freezing. && $$ For more information from the National Weather Service visit https://weather.gov/mtr
077 WWUS76 KMTR 221046 NPWMTR URGENT - WEATHER MESSAGE National Weather Service San Francisco Bay Area 246 AM PST Wed Feb 22 2023 CAZ506-222200- /O.UPG.KMTR.FZ.A.0005.230223T0800Z-230223T1700Z/ /O.NEW.KMTR.FZ.W.0007.230223T0800Z-230223T1700Z/ /O.CON.KMTR.FR.Y.0008.000000T0000Z-230222T1700Z/ /O.CON.KMTR.WI.Y.0011.000000T0000Z-230222T2100Z/ North Bay Interior Valleys- 246 AM PST Wed Feb 22 2023 ...FROST ADVISORY REMAINS IN EFFECT UNTIL 9 AM PST THIS MORNING... ...WIND ADVISORY REMAINS IN EFFECT UNTIL 1 PM PST THIS AFTERNOON... ...FREEZE WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO 9 AM PST THURSDAY... * WHAT...For the Freeze Warning, sub-freezing temperatures as low as 28 expected. For the Frost Advisory, temperatures as low as 33 will result in frost formation. For the Wind Advisory, northwest winds 15 to 25 mph with gusts up to 40 mph. * WHERE...North Bay Interior Valleys. * WHEN...For the Frost Advisory, until 9 AM PST this morning. For the Wind Advisory, until 1 PM PST this afternoon. For the Freeze Warning, from midnight tonight to 9 AM PST Thursday. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. Frost and freeze conditions will kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. * ADDITIONAL DETAILS...Cold temperatures will impact unsheltered or marginally sheltered populations.. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. Take steps now to protect tender plants from the cold. To prevent freezing and possible bursting of outdoor water pipes they should be wrapped, drained, or allowed to drip slowly. Those that have in-ground sprinkler systems should drain them and cover above- ground pipes to protect them from freezing. && $$ CAZ503-222200- /O.UPG.KMTR.FR.Y.0007.230223T0800Z-230223T1700Z/ /O.NEW.KMTR.FZ.W.0007.230223T0800Z-230223T1700Z/ /O.CON.KMTR.WI.Y.0011.000000T0000Z-230222T2100Z/ Sonoma Coastal Range- 246 AM PST Wed Feb 22 2023 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 1 PM PST THIS AFTERNOON... ...FREEZE WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO 9 AM PST THURSDAY... * WHAT...For the Freeze Warning, sub-freezing temperatures as low as 30 expected. For the Wind Advisory, northwest winds 15 to 25 mph with gusts up to 40 mph. * WHERE...Sonoma Coastal Range. * WHEN...For the Wind Advisory, until 1 PM PST this afternoon. For the Freeze Warning, from midnight tonight to 9 AM PST Thursday. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. Frost and freeze conditions will kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. * ADDITIONAL DETAILS...Cold temperatures will impact unsheltered or marginally sheltered populations.. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. Take steps now to protect tender plants from the cold. To prevent freezing and possible bursting of outdoor water pipes they should be wrapped, drained, or allowed to drip slowly. Those that have in-ground sprinkler systems should drain them and cover above- ground pipes to protect them from freezing. && $$ CAZ517-518-222200- /O.UPG.KMTR.FZ.A.0005.230223T0800Z-230223T1700Z/ /O.NEW.KMTR.FZ.W.0007.230223T0800Z-230223T1700Z/ /O.CON.KMTR.HW.W.0003.000000T0000Z-230222T1700Z/ Santa Lucia Mountains and Los Padres National Forest- Mountains of San Benito and Interior Monterey County including Pinnacles National Park- 246 AM PST Wed Feb 22 2023 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 9 AM PST THIS MORNING... ...FREEZE WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO 9 AM PST THURSDAY... * WHAT...For the High Wind Warning, northwest winds 20 to 30 mph with gusts up to 50 mph. For the Freeze Warning, sub-freezing temperatures as low as 29, with temperatures above 2,000 feet as low as 26 expected. * WHERE...Santa Lucia Mountains and Los Padres National Forest and Mountains of San Benito and Interior Monterey County including Pinnacles National Park. * WHEN...For the High Wind Warning, until 9 AM PST this morning. For the Freeze Warning, from midnight tonight to 9 AM PST Thursday. * IMPACTS...Damaging winds will blow down trees and power lines. Widespread power outages are expected. Travel will be difficult, especially for high profile vehicles. Frost and freeze conditions will kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. * ADDITIONAL DETAILS...Don't forget to protect people, pets, plants, and pipes. PRECAUTIONARY/PREPAREDNESS ACTIONS... People should avoid being outside in forested areas and around trees and branches. If possible, remain in the lower levels of your home during the windstorm, and avoid windows. Use caution if you must drive. Take steps now to protect tender plants from the cold. To prevent freezing and possible bursting of outdoor water pipes they should be wrapped, drained, or allowed to drip slowly. Those that have in-ground sprinkler systems should drain them and cover above- ground pipes to protect them from freezing. && $$ CAZ504-510-512>516-222200- /O.UPG.KMTR.FZ.A.0005.230223T0800Z-230223T1700Z/ /O.NEW.KMTR.FZ.W.0007.230223T0800Z-230223T1700Z/ /O.CON.KMTR.WI.Y.0011.000000T0000Z-230222T2100Z/ North Bay Interior Mountains-East Bay Interior Valleys- Santa Cruz Mountains-Santa Clara Valley...including San Jose- Eastern Santa Clara Hills-East Bay Hills- Southern Salinas Valley...Arroyo Seco...and Lake San Antonio- 246 AM PST Wed Feb 22 2023 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 1 PM PST THIS AFTERNOON... ...FREEZE WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO 9 AM PST THURSDAY... * WHAT...For the Freeze Warning, sub-freezing temperatures as low as 29 expected. For the Wind Advisory, northwest winds 20 to 30 mph with gusts up to 45 mph. * WHERE...Interior areas of the North Bay Mountains and Valleys, the East Bay Hills and Valleys, the Santa Clara Valley, the Santa Cruz Mountains, and interior Monterey and San Benito Counties including the Southern Salinas Valley. * WHEN...For the Wind Advisory, until 1 PM PST this afternoon. For the Freeze Warning, from midnight tonight to 9 AM PST Thursday. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. Frost and freeze conditions will kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. * ADDITIONAL DETAILS...Don't forget to protect people, pets, plants, and pipes. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. Take steps now to protect tender plants from the cold. To prevent freezing and possible bursting of outdoor water pipes they should be wrapped, drained, or allowed to drip slowly. Those that have in-ground sprinkler systems should drain them and cover above- ground pipes to protect them from freezing. && $$ CAZ006-505-509-530-222200- /O.CON.KMTR.HW.W.0003.000000T0000Z-230222T1700Z/ /O.CON.KMTR.FR.Y.0007.230223T0800Z-230223T1700Z/ San Francisco- Coastal North Bay...Including Point Reyes National Seashore- San Francisco Peninsula Coast- Southern Monterey Bay and Big Sur Coast- 246 AM PST Wed Feb 22 2023 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 9 AM PST THIS MORNING... ...FROST ADVISORY REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 9 AM PST THURSDAY... * WHAT...For the High Wind Warning, northwest winds 20 to 30 mph with gusts up to 50 mph. For the Frost Advisory, temperatures as low as 34 will result in frost formation. * WHERE...San Francisco, Coastal North Bay, Including Point Reyes National Seashore, San Francisco Peninsula Coast and Southern Monterey Bay and Big Sur Coast. * WHEN...For the High Wind Warning, until 9 AM PST this morning. For the Frost Advisory, from midnight tonight to 9 AM PST Thursday. * IMPACTS...Damaging winds will blow down trees and power lines. Widespread power outages are expected. Travel will be difficult, especially for high profile vehicles. Frost could kill sensitive outdoor vegetation if left uncovered. * ADDITIONAL DETAILS...Don't forget to protect people, pets, plants, and pipes. PRECAUTIONARY/PREPAREDNESS ACTIONS... People should avoid being outside in forested areas and around trees and branches. If possible, remain in the lower levels of your home during the windstorm, and avoid windows. Use caution if you must drive. Take steps now to protect tender plants from the cold. && $$ CAZ502-508-528-529-222200- /O.CON.KMTR.WI.Y.0011.000000T0000Z-230222T2100Z/ /O.CON.KMTR.FR.Y.0007.230223T0800Z-230223T1700Z/ Marin Coastal Range-San Francisco Bay Shoreline- Northern Salinas Valley...Hollister Valley...and Carmel Valley- Northern Monterey Bay- 246 AM PST Wed Feb 22 2023 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 1 PM PST THIS AFTERNOON... ...FROST ADVISORY REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 9 AM PST THURSDAY... * WHAT...For the Wind Advisory, northwest winds 20 to 30 mph with gusts up to 45 mph. For the Frost Advisory, temperatures as low as 33 will result in frost formation. * WHERE...Marin Coastal Range, San Francisco Bay Shoreline, Northern Salinas Valley, Hollister Valley, and Carmel Valley and Northern Monterey Bay. * WHEN...For the Wind Advisory, until 1 PM PST this afternoon. For the Frost Advisory, from midnight tonight to 9 AM PST Thursday. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. Frost could kill sensitive outdoor vegetation if left uncovered. * ADDITIONAL DETAILS...Don't forget to protect people, pets, plants, and pipes. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. Take steps now to protect tender plants from the cold. && $$ For more information from the National Weather Service visit https://weather.gov/mtr
497 WWUS76 KMTR 221635 NPWMTR URGENT - WEATHER MESSAGE National Weather Service San Francisco Bay Area 835 AM PST Wed Feb 22 2023 CAZ517-518-230045- /O.EXP.KMTR.HW.W.0003.000000T0000Z-230222T1700Z/ /O.CON.KMTR.FZ.W.0007.230223T0800Z-230223T1700Z/ Santa Lucia Mountains and Los Padres National Forest- Mountains of San Benito and Interior Monterey County including Pinnacles National Park- 835 AM PST Wed Feb 22 2023 ...FREEZE WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 9 AM PST THURSDAY... ...HIGH WIND WARNING WILL EXPIRE AT 9 AM PST THIS MORNING... * WHAT...Sub-freezing temperatures as low as 28 expected. * WHERE...Santa Lucia Mountains and Los Padres National Forest and Mountains of San Benito and Interior Monterey County including Pinnacles National Park. * WHEN...From midnight tonight to 9 AM PST Thursday. * IMPACTS...Frost and freeze conditions will kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. To prevent freezing and possible bursting of outdoor water pipes they should be wrapped, drained, or allowed to drip slowly. Those that have in-ground sprinkler systems should drain them and cover above- ground pipes to protect them from freezing. && $$ CAZ006-505-509-530-230045- /O.EXP.KMTR.HW.W.0003.000000T0000Z-230222T1700Z/ /O.CON.KMTR.FR.Y.0007.230223T0800Z-230223T1700Z/ San Francisco- Coastal North Bay...Including Point Reyes National Seashore- San Francisco Peninsula Coast- Southern Monterey Bay and Big Sur Coast- 835 AM PST Wed Feb 22 2023 ...FROST ADVISORY REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 9 AM PST THURSDAY... ...HIGH WIND WARNING WILL EXPIRE AT 9 AM PST THIS MORNING... * WHAT...Temperatures as low as 35 will result in frost formation. * WHERE...San Francisco, Coastal North Bay, Including Point Reyes National Seashore, San Francisco Peninsula Coast and Southern Monterey Bay and Big Sur Coast. * WHEN...From midnight tonight to 9 AM PST Thursday. * IMPACTS...Frost could kill sensitive outdoor vegetation if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$ CAZ506-230045- /O.EXP.KMTR.FR.Y.0008.000000T0000Z-230222T1700Z/ /O.CON.KMTR.FZ.W.0007.230223T0800Z-230223T1700Z/ /O.CON.KMTR.WI.Y.0011.000000T0000Z-230222T2100Z/ North Bay Interior Valleys- 835 AM PST Wed Feb 22 2023 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 1 PM PST THIS AFTERNOON... ...FREEZE WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 9 AM PST THURSDAY... ...FROST ADVISORY WILL EXPIRE AT 9 AM PST THIS MORNING... * WHAT...For the Freeze Warning, sub-freezing temperatures as low as 30 expected. For the Wind Advisory, northwest winds 15 to 20 mph with gusts up to 35 mph. * WHERE...North Bay Interior Valleys. * WHEN...For the Freeze Warning, from midnight tonight to 9 AM PST Thursday. For the Wind Advisory, until 1 PM PST this afternoon. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. Frost and freeze conditions will kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. Take steps now to protect tender plants from the cold. To prevent freezing and possible bursting of outdoor water pipes they should be wrapped, drained, or allowed to drip slowly. Those that have in-ground sprinkler systems should drain them and cover above- ground pipes to protect them from freezing. && $$ CAZ503-504-510-512>516-230045- /O.CON.KMTR.FZ.W.0007.230223T0800Z-230223T1700Z/ /O.CON.KMTR.WI.Y.0011.000000T0000Z-230222T2100Z/ Sonoma Coastal Range-North Bay Interior Mountains- East Bay Interior Valleys-Santa Cruz Mountains- Santa Clara Valley...including San Jose-Eastern Santa Clara Hills- East Bay Hills- Southern Salinas Valley...Arroyo Seco...and Lake San Antonio- 835 AM PST Wed Feb 22 2023 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 1 PM PST THIS AFTERNOON... ...FREEZE WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 9 AM PST THURSDAY... * WHAT...For the Freeze Warning, sub-freezing temperatures as low as 30 expected. For the Wind Advisory, northwest winds 15 to 25 mph with gusts up to 35 mph. * WHERE...Portions of California. * WHEN...For the Freeze Warning, from midnight tonight to 9 AM PST Thursday. For the Wind Advisory, until 1 PM PST this afternoon. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. Frost and freeze conditions will kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. Take steps now to protect tender plants from the cold. To prevent freezing and possible bursting of outdoor water pipes they should be wrapped, drained, or allowed to drip slowly. Those that have in-ground sprinkler systems should drain them and cover above- ground pipes to protect them from freezing. && $$ CAZ502-508-528-529-230045- /O.CON.KMTR.WI.Y.0011.000000T0000Z-230222T2100Z/ /O.CON.KMTR.FR.Y.0007.230223T0800Z-230223T1700Z/ Marin Coastal Range-San Francisco Bay Shoreline- Northern Salinas Valley...Hollister Valley...and Carmel Valley- Northern Monterey Bay- 835 AM PST Wed Feb 22 2023 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 1 PM PST THIS AFTERNOON... ...FROST ADVISORY REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 9 AM PST THURSDAY... * WHAT...For the Wind Advisory, northwest winds 15 to 25 mph with gusts up to 40 mph. For the Frost Advisory, temperatures as low as 34 will result in frost formation. * WHERE...Marin Coastal Range, San Francisco Bay Shoreline, Northern Salinas Valley, Hollister Valley, and Carmel Valley and Northern Monterey Bay. * WHEN...For the Wind Advisory, until 1 PM PST this afternoon. For the Frost Advisory, from midnight tonight to 9 AM PST Thursday. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. Frost could kill sensitive outdoor vegetation if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. Take steps now to protect tender plants from the cold. && $$ For more information from the National Weather Service visit https://weather.gov/mtr
What forecasters said that day
The local office's own words before this high wind warning 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 high wind warning went out at Feb 20, 9:41 PM PST, 6 hours 9 minutes earlier.
Area forecast discussion, Feb 20, 9:41 PM PST, 6 hours 9 minutes before
Area Forecast Discussion
National Weather Service San Francisco Bay Area
941 PM PST Mon Feb 20 2023
.SYNOPSIS...A strong winter storm will bring windy, cold and wet
conditions to the region through the remainder of the week with
lowering snow levels.
&&
.DISCUSSION...as of 02:45 PM PST Monday...Another mild and mostly
sunny afternoon across the region with temperatures generally
warming into the lower 60s to lower 70s. Overnight temperatures
are expected to cool into the upper 30s across the interior to
low/mid 40s. Cloud cover will begin to increase from north to
south through the overnight as well in advance of an approaching
cold front.
A robust winter storm will begin to impact the entire region on
Tuesday as a long-wave trough drops out of western Canada. Daytime
temperatures are likely to peak by around late morning across the
greater San Francisco Bay Area before dropping in wake of the cold
front. The front will then sweep through the Central Coast by mid-to-
late afternoon. In wake of the frontal passage, strong and gusty
northwest winds will develop region-wide with the strongest along
the coast and in the higher peaks and ridges. Wind gusts from
Tuesday afternoon into early Wednesday morning are forecast to peak
between 45-55 mph with a Wind Advisory in effect for the entire
region. Wind speeds will then begin to diminish slightly but remain
breezy into Wednesday. This will make for blustery conditions as
daytime temperatures struggle to warm out of the upper 40s to lower
50s. With the initial front, rain showers are likely to develop out
over the Pacific and potentially along the coast while most inland
areas remain dry. Rain and snow showers will increase over the
Central Coast on Wednesday and into Thursday as a weak short-wave
disturbance rides through the base of the upper level trough.
Instability within the cold air mass will also support a slight
chance of thunderstorms. The cold air mass will persist over the
region through late week with snow levels dropping to around 1,500
to 2,000 feet and at times locally down to 1,000 feet. At this time,
1000MB-500MB thicknesses drop to around 525 dam with 850MB
temperatures dropping to as low as -5 deg C which supports the
potential for snow flakes mixing down into valley locations,
especially during the early morning hours as surface temperatures
will hover near freezing.
A reinforcing mid/upper level trough will drop southward out of the
Pacific Northwest and develop into a closed low as it moves down the
California coast late Thursday into Friday. As this system pushes
inland, precipitation will increase region-wide with moderate rain
and snow showers. Through Friday night, rainfall amounts will range
from 0.25-0.75" across the lower elevations of the Bay Area and up
to around 1.00" in the hills and higher elevations. Amounts increase
to around 0.75-1.50" in the lower elevations of the Central Coast
with 1.50-3.00" in the Santa Cruz Mountains and Santa Lucia range.
Temperatures late week will struggle to warm out of the upper 40s to
lower 50s in the lower elevations with 30s in the hills, ridges and
peaks. Overnight temperatures will drop into the 30s for most areas
with the coldest interior locations potential falling into the
upper 20s. Exactly how cold temperatures get will depending on the
cloud cover, wind, moisture and any precipitation ongoing over the
region.
Lastly, the potential for snow accumulations continues to increase
over the Bay Area and Central Coast's hills, ridges and peaks. Given
aforementioned precipitation amounts, the highest snow totals will be
in the Santa Cruz Mountains, southern Diablo, Gabilan, and Santa
Lucia ranges along with the Sierra de Salinas. Snow accumulations
will be less over the North Bay Mountains, 4-6" will be possible in
the higher peaks of the region as well as locations such as Mt. Tam
and Mt. Diablo. For the Santa Cruz Mountains, southern Diablo Range
and Gabilan Range, totals of 4-8" with isolated amounts up to 12" are
expected. The potential for more than a foot of snow is greatest in
the higher peaks of the Santa Lucia Range above the Big Sur Coast.
All this said, this remains a challenging forecast especially with
respect to snowfall. Be sure to stay up-to-date with the latest in
the coming days.
To recap, this very cold and dynamic weather system will bring
strong and gusty winds, cold temperatures and rain/snow showers to
the region through the remainder of the week. While widespread
flooding concerns are not anticipated, hazardous travel conditions
will occur at times across the region. Additionally, prolonged cold
temperatures will pose great risks to those experiencing
homelessness or those without access to adequate warming/shelter.
Conditions look to dry out and warm slightly over the weekend before
another round of cold and unsettled weather arrives to start of the
last week of the month.
&&
.AVIATION...as of 09:40 PM PST Thursday...For the 06Z TAFs.
Generally light winds continue overnight but onshore winds will
begin to increase this morning. There continues to be a slight
chance (20-30%) for MVFR cigs for the SF Bay terminals (SFO, OAK,
APC, SJC). Higher confidence (50-60%) for MRY and SNS to see MVFR
to borderline IFR cigs this morning.
The other aviation weather concern continues to be strong NW winds
arriving tomorrow late morning/early afternoon as a robust low
pressure system dips into California. NW winds will be strong and
gusty (gusts up to 35 to 40 knots) with strongest winds occurring
after 20z. Strong gusts taper off towards the end of the TAF
period, but NW sustained winds at the surface will remain around
15-20 knots for most sites. As such, LLWS added for North Bay and
Monterey Bay terminals tomorrow evening.
Vicinity of KSFO...Light to breezy onshore winds (8 to 10 knots)
continue overnight and will begin to increase early in the
morning ahead of cold frontal passage. Behind the front, NW winds
will become stronger and gustier (gusts up to 35-40 knots),
especially after 19-20z. Winds will remain gusty through the end
of the TAF period, but starting to taper off slightly after 09z
Wednesday. In addition to strong winds, there is a slight chance
(20%) of MVFR cig development early tomorrow morning, but
confidence remains low. Will continue to monitor.
KSFO Bridge Approach...Similar to SFO.
Monterey Bay...Light drainage flow currently but expected to shift
onshore as marine stratus advects towards the Monterey Bay
overnight. Increased confidence for KMRY and KSNS to see MVFR
cigs early this morning, potentially persisting into the late
morning. NW winds will increase Tuesday morning after 17z,
increasing and becoming gusty through the afternoon and persisting
through Tuesday evening, to which winds will diminish at the
surface but remain gusty aloft, warranting LLWS at the end of the
period.
&&
.MARINE...as of 08:37 PM PST Monday...A strong weather system is
on track to arrive tomorrow. Ahead of this system, winds will
continue to increase through the night tonight north of Pigeon
Point. Widespread strong winds will arrive after frontal passage
tomorrow morning, where gale force gusts will be likely over the
coastal waters. As a result, hazardous seas likely. A large
northwest swell also arrives, creating steep seas that will
persist through the week. In addition, rain showers and
thunderstorms possible tomorrow night into Wednesday. Winds
expected to diminish late Wednesday.
&&
.MTR WATCHES/WARNINGS/ADVISORIES...
.Tday...Wind Advisory...CAZ006-502>506-508>510-512>518-528>530
SCA...SF Bay until 9 AM
SCA...Mry Bay until 9 AM
SCA...Pt Reyes to Pigeon Pt 0-10 nm until 9 AM
SCA...Pigeon Pt to Pt Pinos 0-10 nm until 9 AM
GLW...SF Bay from 9 AM
GLW...Mry Bay from 9 AM
GLW...Pt Arena to Pt Reyes 0-10 nm from 9 AM
GLW...Pt Reyes to Pigeon Pt 0-10 nm from 9 AM
SCA...Pt Arena to Pt Reyes 0-10 nm until 9 AM
SCA...Pt Pinos to Pt Piedras Blancas 0-10 nm until 9 AM
SCA...Pigeon Pt to Pt Piedras Blancas 10-60 nm until 9 AM
GLW...Pigeon Pt to Pt Pinos 0-10 nm from 9 AM
GLW...Pt Pinos to Pt Piedras Blancas 0-10 nm from 9 AM
GLW...Pigeon Pt to Pt Piedras Blancas 10-60 nm from 9 AM
SCA...Pt Arena to Pigeon Pt 10-60 nm until 3 AM
GLW...Pt Arena to Pigeon Pt 10-60 nm
&&
PUBLIC FORECAST: RGass
AVIATION: McCorkle
MARINE: McCorkle
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www.youtube.com/nwsbayareaThe office that day
Everything else NWS San Francisco Bay Area, CA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 20, 9:58 PM PST | Beach Hazards Statement | MTR | Santa Cruz | 42 hr |
| Feb 20, 9:58 PM PST | High Surf Advisory | MTR | Marin, Monterey, City and County of San Francisco, San Mateo, Santa Cruz, Sonoma | 42 hr |
| Feb 21, 2:42 AM PST | Frost Advisory | MTR | Alameda, Contra Costa, Marin, Monterey, San Benito, City and County of San Francisco and 4 more | 54 hr |
| Feb 21, 2:42 AM PST | Freeze Watch | MTR | Alameda, Contra Costa, Marin, Monterey, Napa, San Benito and 4 more | 24 hr |
| Feb 21, 2:57 AM PST | Winter Storm Watch | MTR | Monterey, San Benito, San Mateo, Santa Clara, Santa Cruz | 11 hr |
| Feb 21, 1:17 PM PST | Frost Advisory | MTR | Marin, Napa, Sonoma | 20 hr |
| Feb 21, 1:57 PM PST | Winter Weather Advisory | MTR | Monterey, San Benito, San Mateo, Santa Clara, Santa Cruz, Sonoma | 53 hr |
Nearby
High Wind Warnings in California, 2023Every high wind warning in 2023
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.