Alert archive / California / High Wind Warnings in 2025
High Wind Warning 4, NWS San Francisco Bay Area, CA
NWS San Francisco Bay Area, CA issued this high wind warning at Dec 22, 2025, 5:59 PM PST for 11 counties in California. It took effect at Dec 23, 2025, 4:00 PM PST. It was in force for 15 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
- Dec 22, 2025, 5:59 PM PST (01:59 UTC)
- In effect from
- Dec 23, 2025, 4:00 PM PST
- Expired
- Dec 24, 2025, 7:17 AM PST
- In force
- 15 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 02:02 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 |
|---|---|---|---|
| Dec 23, 5:10 PM PST | NON-TSTM WND GST 63 | 25 Sw Greenfield, CA | Mesonet station HLPK 24.9 SW Greenfield (DRI). |
| Dec 23, 5:10 PM PST | NON-TSTM WND GST 63 | 25 Sw Greenfield, CA | Mesonet station HLPK 24.9 SW Greenfield (DRI). |
| Dec 23, 5:10 PM PST | NON-TSTM WND GST 63 | 26 Sw Greenfield, CA | Mesonet station HPEC1 Highlands Peak Met Station Near. |
| Dec 23, 5:10 PM PST | NON-TSTM WND GST 63 | 26 Sw Greenfield, CA | Mesonet station HPEC1 Highlands Peak Met Station Near. |
| Dec 23, 5:20 PM PST | NON-TSTM WND GST 68 | 14 Sw Carmel Valley Vil, CA | Mesonet station PG622 Old Coast Tower. |
| Dec 23, 5:20 PM PST | NON-TSTM WND GST 68 | 14 Sw Carmel Valley Vil, CA | Mesonet station PG622 Old Coast Tower. |
| Dec 23, 6:00 PM PST | NON-TSTM WND GST 60 | 11 Wsw Inverness, CA | Mesonet station 538PG Point Reyes. |
| Dec 23, 6:00 PM PST | NON-TSTM WND GST 60 | 11 Wsw Inverness, CA | Mesonet station 538PG Point Reyes. |
| Dec 23, 6:10 PM PST | NON-TSTM WND GST 42 | 7 Sse King City, CA | Mesonet station 312PG Oasis Road. |
| Dec 23, 6:10 PM PST | NON-TSTM WND GST 68 | 13 Sw Carmel Valley Vil, CA | Mesonet station PG471 12.7 SW Carmel Valley Vill (PGE). |
| Dec 23, 6:10 PM PST | NON-TSTM WND GST 68 | 13 Sw Carmel Valley Vil, CA | Mesonet station PG471 12.7 SW Carmel Valley Vill (PGE). |
| Dec 23, 6:30 PM PST | NON-TSTM WND GST 74 | 14 Sw Carmel Valley Vil, CA | Mesonet station PG622 Old Coast Tower. |
| Dec 23, 6:30 PM PST | NON-TSTM WND GST 74 | 14 Sw Carmel Valley Vil, CA | Mesonet station PG622 Old Coast Tower. |
| Dec 23, 6:30 PM PST | NON-TSTM WND GST 74 | 14 Sw Carmel Valley Vil, CA | Mesonet station PG622 Old Coast Tower. |
| Dec 23, 7:00 PM PST | NON-TSTM WND GST 42 | 13 Ese King City, CA | Mesonet station 242PG Highway 198 West. |
| Dec 23, 7:00 PM PST | NON-TSTM WND GST 42 | 24 Ene Greenfield, CA | Mesonet station PG270 25.2 NE King City (PGE). |
| Dec 23, 7:00 PM PST | NON-TSTM WND GST 65 | 2 Ene Soledad, CA | Mesonet station PG542 Pinnacles National Park. |
| Dec 23, 7:00 PM PST | NON-TSTM WND GST 75 | 6 N Gonzales, CA | Mesonet station PG543 6.0 N Gonzales (PGE). |
| Dec 23, 7:00 PM PST | NON-TSTM WND GST 75 | 6 N Gonzales, CA | Mesonet station PG543 6.0 N Gonzales (PGE). |
| Dec 23, 7:10 PM PST | NON-TSTM WND GST 45 | 16 Ne King City, CA | Mesonet station PG260 16.4 NE King City (PGE). |
| Dec 23, 7:20 PM PST | NON-TSTM WND GST 52 | 15 Ne Gonzales, CA | Mesonet station 316PG Highway 25. |
| Dec 23, 7:20 PM PST | NON-TSTM WND GST 54 | 9 Se Carmel Valley Vill, CA | Mesonet station PG319 9.5 SE Carmel Valley Vill (PGE). |
| Dec 23, 7:20 PM PST | NON-TSTM WND GST 61 | 3 S Carmel Valley Vill, CA | Mesonet station 524PG San Clemente Road. |
| Dec 23, 7:29 PM PST | NON-TSTM WND DMG | 2 Wnw Boulder Creek, CA | Wires and pole down on State Route 236 at Jamison Creek Road, forcing the closure of the road. |
| Dec 23, 7:30 PM PST | NON-TSTM WND GST 48 | 23 Ne Soledad, CA | Mesonet station PG955 Payne Creek Road. |
| Dec 23, 7:50 PM PST | NON-TSTM WND GST 48 | 2 Ssw Soledad, CA | Mesonet station 055PG Fort Romie. |
| Dec 23, 7:50 PM PST | NON-TSTM WND GST 49 | 14 Nne Mount Hamilton, CA | Mesonet station PG102 14.2 NE Mount Hamilton (PGE). |
| Dec 23, 8:02 PM PST | NON-TSTM WND GST 43 | 7 Ene Morgan Hill, CA | Mesonet station CZRC1 Cordoza Ridge. |
| Dec 23, 8:06 PM PST | NON-TSTM WND DMG | 4 Wsw Emerald Lake Hill, CA | Tree blocking southbound lane of California Highway 35 at Henrik Ibsen Road. |
| Dec 23, 8:10 PM PST | NON-TSTM WND GST 49 | 4 Sw Cupertino, CA | Mesonet station PG989 Monte Vista. |
| Dec 23, 8:20 PM PST | NON-TSTM WND GST 68 | 11 Wsw Inverness, CA | Mesonet station 538PG Point Reyes. |
| Dec 23, 8:20 PM PST | NON-TSTM WND GST 68 | 11 Wsw Inverness, CA | Mesonet station 538PG Point Reyes. |
| Dec 23, 8:20 PM PST | NON-TSTM WND GST 71 | 10 Se Livermore, CA | Mesonet station 139PG Mines Tower. |
| Dec 23, 8:20 PM PST | NON-TSTM WND GST 71 | 10 Se Livermore, CA | Mesonet station 139PG Mines Tower. |
| Dec 23, 8:20 PM PST | NON-TSTM WND GST 71 | 10 Se Livermore, CA | Mesonet station 139PG Mines Tower. |
| Dec 23, 8:30 PM PST | NON-TSTM WND GST 59 | 3 Ene Lexington Hills, CA | Mesonet station PG994 Sierra Azul. |
| Dec 23, 8:40 PM PST | NON-TSTM WND GST 44 | 15 Ene Soledad, CA | Mesonet station 186PG Hernandez Road. |
| Dec 23, 8:40 PM PST | NON-TSTM WND GST 48 | 5 Ssw Portola Valley, CA | Mesonet station 067PG Coggins Road. |
| Dec 23, 8:40 PM PST | NON-TSTM WND GST 64 | 10 Ene Hollister, CA | Mesonet station 486PG Lone Tree Towers. |
| Dec 23, 8:40 PM PST | NON-TSTM WND GST 64 | 10 Ene Hollister, CA | Mesonet station 486PG Lone Tree Towers. |
| Dec 23, 8:40 PM PST | NON-TSTM WND GST 64 | 10 Ene Hollister, CA | Mesonet station 486PG Lone Tree Towers. |
| Dec 23, 8:46 PM PST | NON-TSTM WND GST 60 | 6 S Portola Valley, CA | Mesonet station FW4238 La Honda. |
| Dec 23, 8:46 PM PST | NON-TSTM WND GST 60 | 6 S Portola Valley, CA | Mesonet station FW4238 La Honda. |
| Dec 23, 8:47 PM PST | NON-TSTM WND DMG | 2 S West Menlo Park, CA | Tree down on southbound Interstate 280 north of Alpine Road, blocking the slow lane. |
| Dec 23, 8:50 PM PST | NON-TSTM WND GST 51 | 5 Wsw Woodside, CA | Mesonet station PG149 5.5 W Woodside (PGE). |
| Dec 23, 8:50 PM PST | NON-TSTM WND GST 63 | 2 Ene Soledad, CA | Mesonet station PG542 Pinnacles National Park. |
| Dec 23, 8:50 PM PST | NON-TSTM WND GST 63 | 2 Ene Soledad, CA | Mesonet station PG542 Pinnacles National Park. |
| Dec 23, 8:50 PM PST | NON-TSTM WND GST 65 | 2 Ssw Woodacre, CA | Mesonet station 522PG Pine Mountain Fire Road. |
| Dec 23, 8:50 PM PST | NON-TSTM WND GST 65 | 2 Ssw Woodacre, CA | Mesonet station 522PG Pine Mountain Fire Road. |
| Dec 23, 8:54 PM PST | NON-TSTM WND DMG | 5 Nnw Boulder Creek, CA | Tree down on the southbound lane of State Route 236 at mile marker 15.77. |
| Dec 23, 9:00 PM PST | NON-TSTM WND GST 52 | 1 Sse Highlands, CA | Mesonet station 048PG Loop Road. |
| Dec 23, 9:00 PM PST | NON-TSTM WND GST 63 | 11 E Cloverdale, CA | Mesonet station PG125 Cobb Ridge West. |
| Dec 23, 9:00 PM PST | NON-TSTM WND GST 63 | 11 E Cloverdale, CA | Mesonet station PG125 Cobb Ridge West. |
| Dec 23, 9:00 PM PST | NON-TSTM WND GST 73 | 2 N Montara, CA | Mesonet station 620PG North Peak Access Road. |
| Dec 23, 9:00 PM PST | NON-TSTM WND GST 73 | 2 N Montara, CA | Mesonet station 620PG North Peak Access Road. |
| Dec 23, 9:02 PM PST | NON-TSTM WND DMG | 5 Se Salinas, CA | Pole and wires down on westbound Hartnell Road east of US Highway 101. |
| Dec 23, 9:10 PM PST | NON-TSTM WND GST 46 | 4 S Calistoga, CA | Mesonet station 359PG Pride Mountain Vineyard. |
| Dec 23, 9:10 PM PST | NON-TSTM WND GST 66 | 1 N Woodacre, CA | Mesonet station PG995 Gunsight Fire Road. |
| Dec 23, 9:10 PM PST | NON-TSTM WND GST 66 | 1 N Woodacre, CA | Mesonet station PG995 Gunsight Fire Road. |
| Dec 23, 9:10 PM PST | NON-TSTM WND GST 66 | 7 Nnw Calistoga, CA | Mesonet station PG132 Mt St Helena. |
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, 2.0 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
- 1 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 719 m above ground
- 0-6 km bulk shear
- 58 kt
- 0-1 km storm-relative helicity
- 110 m²/s²
- 0-3 km storm-relative helicity
- 166 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
224 WWUS76 KMTR 230159 NPWMTR URGENT - WEATHER MESSAGE National Weather Service San Francisco CA 559 PM PST Mon Dec 22 2025 CAZ502-503-505-509-517-530-231000- /O.UPG.KMTR.HW.A.0002.251224T0300Z-251224T1200Z/ /O.NEW.KMTR.HW.W.0004.251224T0000Z-251224T1200Z/ Marin Coastal Range-Sonoma Coastal Range-Coastal North Bay Including Point Reyes National Seashore-San Francisco Peninsula Coast-Santa Lucia Mountains and Los Padres National Forest- Southern Monterey Bay and Big Sur Coast- 559 PM PST Mon Dec 22 2025 ...HIGH WIND WARNING IN EFFECT FROM 4 PM TUESDAY TO 4 AM PST WEDNESDAY... * WHAT...Southeast winds 30 to 40 mph with gusts up to 65 mph expected. Isolated areas along the coast may see a few gusts up to 75 mph. * WHERE...Southern Monterey Bay and the Big Sur Coast, The Marin Hills, Western Sonoma County Hills, Interior Monterey County and the Santa Lucia Range, Coastal North Bay Including Point Reyes National Seashore, and San Francisco Peninsula Coast. * WHEN...From 4 PM Tuesday to 4 AM PST Wednesday. * IMPACTS...Damaging winds will blow down trees and power lines. Widespread power outages are expected. Travel will be difficult, especially for high profile vehicles. Damaging winds could down trees, snap power lines, and result in property damage. Widespread power outages are possible. Travel could be extremely difficult and hazardous, especially for high profile vehicles. PRECAUTIONARY/PREPAREDNESS ACTIONS... People are urged to secure loose objects that could be blown around or damaged by the wind. Secure loose outdoor objects that could be blown around or damaged by the wind. && $$ CAZ006-504-506-508-510-512>516-518-528-529-231000- /O.UPG.KMTR.HW.A.0002.251224T0300Z-251224T1200Z/ /O.NEW.KMTR.WI.Y.0017.251224T0000Z-251224T1200Z/ San Francisco-North Bay Interior Mountains-North Bay Interior Valleys-San Francisco Bay Shoreline-East Bay Interior Valleys- Santa Cruz Mountains-Santa Clara Valley Including San Jose- Eastern Santa Clara Hills-East Bay Hills-Southern Salinas Valley/Arroyo Seco and Lake San Antonio-Mountains of San Benito County And Interior Monterey County including Pinnacles National Park-Northern Salinas Valley/Hollister Valley and Carmel Valley- Northern Monterey Bay- 559 PM PST Mon Dec 22 2025 ...WIND ADVISORY IN EFFECT FROM 4 PM TUESDAY TO 4 AM PST WEDNESDAY... * WHAT...Southeast winds 25 to 35 mph with gusts up to 55 mph expected. * WHERE...The East Bay and San Francisco Bay Shoreline, The Santa Clara Valley and Eastern Hills, The Salinas and Carmel Valleys and Hollister Area, Northern Monterey Bay, The Santa Cruz Mountains, Most of San Benito County and the Cholame Hills in Southeast Monterey County, San Francisco, North Bay Interior Mountains, and North Bay Interior Valleys. * WHEN...From 4 PM Tuesday to 4 AM PST Wednesday. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution. Secure loose outdoor objects that could be blown around or damaged by the wind. && $$ Behringer
6 follow-up statements
878 WWUS76 KMTR 230928 NPWMTR URGENT - WEATHER MESSAGE National Weather Service San Francisco CA 128 AM PST Tue Dec 23 2025 CAZ502-503-505-509-517-530-232300- /O.CON.KMTR.HW.W.0004.251224T0000Z-251224T1200Z/ Marin Coastal Range-Sonoma Coastal Range-Coastal North Bay Including Point Reyes National Seashore-San Francisco Peninsula Coast-Santa Lucia Mountains and Los Padres National Forest- Southern Monterey Bay and Big Sur Coast- 128 AM PST Tue Dec 23 2025 ...HIGH WIND WARNING REMAINS IN EFFECT FROM 4 PM THIS AFTERNOON TO 4 AM PST WEDNESDAY... * WHAT...Southeast winds 30 to 40 mph with gusts up to 65 mph expected. Isolated areas along the coast may see a few gusts up to 75 mph. * WHERE...Southern Monterey Bay and the Big Sur Coast, The Marin Hills, Western Sonoma County Hills, Interior Monterey County and the Santa Lucia Range, Coastal North Bay Including Point Reyes National Seashore, and San Francisco Peninsula Coast. * WHEN...From 4 PM this afternoon to 4 AM PST Wednesday. * IMPACTS...Damaging winds will blow down trees and power lines. Widespread power outages are expected. Travel will be difficult, especially for high profile vehicles. Damaging winds could down trees, snap power lines, and result in property damage. Widespread power outages are possible. Travel could be extremely difficult and hazardous, especially for high profile vehicles. PRECAUTIONARY/PREPAREDNESS ACTIONS... People are urged to secure loose objects that could be blown around or damaged by the wind. Secure loose outdoor objects that could be blown around or damaged by the wind. && $$ CAZ006-504-506-508-510-512>516-518-528-529-232300- /O.CON.KMTR.WI.Y.0017.251224T0000Z-251224T1200Z/ San Francisco-North Bay Interior Mountains-North Bay Interior Valleys-San Francisco Bay Shoreline-East Bay Interior Valleys- Santa Cruz Mountains-Santa Clara Valley Including San Jose- Eastern Santa Clara Hills-East Bay Hills-Southern Salinas Valley/Arroyo Seco and Lake San Antonio-Mountains of San Benito County And Interior Monterey County including Pinnacles National Park-Northern Salinas Valley/Hollister Valley and Carmel Valley- Northern Monterey Bay- 128 AM PST Tue Dec 23 2025 ...WIND ADVISORY REMAINS IN EFFECT FROM 4 PM THIS AFTERNOON TO 4 AM PST WEDNESDAY... * WHAT...Southeast winds 25 to 35 mph with gusts up to 55 mph expected. Isolated areas along the ridgelines may see a few gusts up to 65 mph. * WHERE...The East Bay and San Francisco Bay Shoreline, The Santa Clara Valley and Eastern Hills, The Salinas and Carmel Valleys and Hollister Area, Northern Monterey Bay, The Santa Cruz Mountains, Most of San Benito County and the Cholame Hills in Southeast Monterey County, San Francisco, North Bay Interior Mountains, and North Bay Interior Valleys. * WHEN...From 4 PM this afternoon to 4 AM PST Wednesday. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution. Secure loose outdoor objects that could be blown around or damaged by the wind. && $$ DialH
684 WWUS76 KMTR 232055 NPWMTR URGENT - WEATHER MESSAGE National Weather Service San Francisco CA 1255 PM PST Tue Dec 23 2025 CAZ006-516-528-529-232200- /O.CAN.KMTR.WI.Y.0017.251224T0000Z-251224T1200Z/ San Francisco-Southern Salinas Valley/Arroyo Seco and Lake San Antonio-Northern Salinas Valley/Hollister Valley and Carmel Valley-Northern Monterey Bay- 1255 PM PST Tue Dec 23 2025 ...WIND ADVISORY UPGRADED TO HIGH WIND WARNING... $$ CAZ504-506-508-510-512>515-518-240500- /O.UPG.KMTR.WI.Y.0017.251224T0000Z-251224T1200Z/ /O.EXA.KMTR.HW.W.0004.251224T0000Z-251224T1200Z/ North Bay Interior Mountains-North Bay Interior Valleys-San Francisco Bay Shoreline-East Bay Interior Valleys-Santa Cruz Mountains-Santa Clara Valley Including San Jose-Eastern Santa Clara Hills-East Bay Hills-Mountains of San Benito County And Interior Monterey County including Pinnacles National Park- 1255 PM PST Tue Dec 23 2025 ...HIGH WIND WARNING IN EFFECT FROM 4 PM THIS AFTERNOON TO 4 AM PST WEDNESDAY... * WHAT...Southeast winds 20 to 30 mph with gusts up to 65 mph expected. * WHERE...The East Bay and San Francisco Bay Shoreline, The Santa Clara Valley and Eastern Hills, The Santa Cruz Mountains, Most of San Benito County and the Cholame Hills in Southeast Monterey County, North Bay Interior Mountains, and North Bay Interior Valleys. * WHEN...From 4 PM this afternoon to 4 AM PST Wednesday. * IMPACTS...Damaging winds could down trees, snap power lines, and result in property damage. Widespread power outages are possible. Travel could be extremely difficult and hazardous, especially for high profile vehicles. PRECAUTIONARY/PREPAREDNESS ACTIONS... People are urged to secure loose objects that could be blown around or damaged by the wind. && $$ CAZ502-503-505-509-517-530-240500- /O.CON.KMTR.HW.W.0004.251224T0000Z-251224T1200Z/ Marin Coastal Range-Sonoma Coastal Range-Coastal North Bay Including Point Reyes National Seashore-San Francisco Peninsula Coast-Santa Lucia Mountains and Los Padres National Forest- Southern Monterey Bay and Big Sur Coast- 1255 PM PST Tue Dec 23 2025 ...HIGH WIND WARNING REMAINS IN EFFECT FROM 4 PM THIS AFTERNOON TO 4 AM PST WEDNESDAY... * WHAT...South winds 25 to 35 mph with gusts up to 65 mph expected. * WHERE...Southern Monterey Bay and the Big Sur Coast, The Marin Hills, Western Sonoma County Hills, Interior Monterey County and the Santa Lucia Range, Coastal North Bay Including Point Reyes National Seashore, and San Francisco Peninsula Coast. * WHEN...From 4 PM this afternoon to 4 AM PST Wednesday. * IMPACTS...Damaging winds will blow down trees and power lines. Widespread power outages are expected. Travel will be difficult, especially for high profile vehicles. Damaging winds could down trees, snap power lines, and result in property damage. Widespread power outages are possible. Travel could be extremely difficult and hazardous, especially for high profile vehicles. PRECAUTIONARY/PREPAREDNESS ACTIONS... People are urged to secure loose objects that could be blown around or damaged by the wind. Secure loose outdoor objects that could be blown around or damaged by the wind. && $$ Flynn
924 WWUS76 KMTR 232109 NPWMTR URGENT - WEATHER MESSAGE National Weather Service San Francisco CA 109 PM PST Tue Dec 23 2025 CAZ504-506-508-510-512>515-518-241200- /O.CAN.KMTR.HW.W.0004.251224T0000Z-251224T1200Z/ /O.NEW.KMTR.WI.Y.0018.251224T0000Z-251224T1200Z/ North Bay Interior Mountains-North Bay Interior Valleys-San Francisco Bay Shoreline-East Bay Interior Valleys-Santa Cruz Mountains-Santa Clara Valley Including San Jose-Eastern Santa Clara Hills-East Bay Hills-Mountains of San Benito County And Interior Monterey County including Pinnacles National Park- 109 PM PST Tue Dec 23 2025 ...CORRECTION: HIGH WIND WARNING REVERTED BACK TO WIND ADVISORY IN EFFECT UNTIL 4 AM PST WEDNESDAY... * WHAT...Southeast winds 20 to 30 mph with gusts up to 55 mph expected. * WHERE...The East Bay and San Francisco Bay Shoreline, The Santa Clara Valley and Eastern Hills, The Santa Cruz Mountains, Most of San Benito County and the Cholame Hills in Southeast Monterey County, North Bay Interior Mountains, and North Bay Interior Valleys. * WHEN...Until 4 AM PST Wednesday. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution. && $$ CAZ006-516-528-529-241200- /O.EXA.KMTR.HW.W.0004.251224T0000Z-251224T1200Z/ San Francisco-Southern Salinas Valley/Arroyo Seco and Lake San Antonio-Northern Salinas Valley/Hollister Valley and Carmel Valley-Northern Monterey Bay- 109 PM PST Tue Dec 23 2025 ...HIGH WIND WARNING IN EFFECT UNTIL 4 AM PST WEDNESDAY... * WHAT...Southeast winds 20 to 30 mph with gusts up to 60 mph expected. * WHERE...The Salinas and Carmel Valleys and Hollister Area, Northern Monterey Bay, and San Francisco. * WHEN...Until 4 AM PST Wednesday. * IMPACTS...Damaging winds will blow down trees and power lines. Widespread power outages are expected. Travel will be difficult, especially for high profile vehicles. Damaging winds could down trees, snap power lines, and result in property damage. Widespread power outages are possible. Travel could be extremely difficult and hazardous, especially for high profile vehicles. PRECAUTIONARY/PREPAREDNESS ACTIONS... People are urged to secure loose objects that could be blown around or damaged by the wind. Secure loose outdoor objects that could be blown around or damaged by the wind. && $$ CAZ502-503-505-509-517-530-241200- /O.CON.KMTR.HW.W.0004.251224T0000Z-251224T1200Z/ Marin Coastal Range-Sonoma Coastal Range-Coastal North Bay Including Point Reyes National Seashore-San Francisco Peninsula Coast-Santa Lucia Mountains and Los Padres National Forest- Southern Monterey Bay and Big Sur Coast- 109 PM PST Tue Dec 23 2025 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 4 AM PST WEDNESDAY... * WHAT...Southeast winds 30 to 40 mph with gusts up to 65 mph expected. Isolated areas along the coast may see a few gusts up to 75 mph. * WHERE...Southern Monterey Bay and the Big Sur Coast, The Marin Hills, Western Sonoma County Hills, Interior Monterey County and the Santa Lucia Range, Coastal North Bay Including Point Reyes National Seashore, and San Francisco Peninsula Coast. * WHEN...Until 4 AM PST Wednesday. * IMPACTS...Damaging winds will blow down trees and power lines. Widespread power outages are expected. Travel will be difficult, especially for high profile vehicles. Damaging winds could down trees, snap power lines, and result in property damage. Widespread power outages are possible. Travel could be extremely difficult and hazardous, especially for high profile vehicles. PRECAUTIONARY/PREPAREDNESS ACTIONS... People are urged to secure loose objects that could be blown around or damaged by the wind. Secure loose outdoor objects that could be blown around or damaged by the wind. && $$ Flynn
403 WWUS76 KMTR 241123 NPWMTR URGENT - WEATHER MESSAGE National Weather Service San Francisco CA 323 AM PST Wed Dec 24 2025 CAZ006-502-503-505-509-516-517-528>530-241600- /O.EXT.KMTR.HW.W.0004.000000T0000Z-251224T1600Z/ San Francisco-Marin Coastal Range-Sonoma Coastal Range-Coastal North Bay Including Point Reyes National Seashore-San Francisco Peninsula Coast-Southern Salinas Valley/Arroyo Seco and Lake San Antonio-Santa Lucia Mountains and Los Padres National Forest- Northern Salinas Valley/Hollister Valley and Carmel Valley- Northern Monterey Bay-Southern Monterey Bay and Big Sur Coast- 323 AM PST Wed Dec 24 2025 ...HIGH WIND WARNING NOW IN EFFECT UNTIL 8 AM PST THIS MORNING... * WHAT...Southeast winds 30 to 40 mph with gusts up to 65 mph expected. Isolated areas along the coast may see a few gusts up to 75 mph. * WHERE...The Salinas and Carmel Valleys and Hollister Area, Monterey Bay and the Big Sur Coast, The Marin Hills, Western Sonoma County Hills, Interior Monterey County and the Santa Lucia Range, San Francisco, Coastal North Bay Including Point Reyes National Seashore, and San Francisco Peninsula Coast. * WHEN...Until 8 AM PST this 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. Damaging winds could down trees, snap power lines, and result in property damage. Widespread power outages are possible. Travel could be extremely difficult and hazardous, especially for high profile vehicles. PRECAUTIONARY/PREPAREDNESS ACTIONS... People are urged to secure loose objects that could be blown around or damaged by the wind. Secure loose outdoor objects that could be blown around or damaged by the wind. && $$ CAZ504-506-508-510-512>515-518-241600- /O.EXT.KMTR.WI.Y.0018.000000T0000Z-251224T1600Z/ North Bay Interior Mountains-North Bay Interior Valleys-San Francisco Bay Shoreline-East Bay Interior Valleys-Santa Cruz Mountains-Santa Clara Valley Including San Jose-Eastern Santa Clara Hills-East Bay Hills-Mountains of San Benito County And Interior Monterey County including Pinnacles National Park- 323 AM PST Wed Dec 24 2025 ...WIND ADVISORY NOW IN EFFECT UNTIL 8 AM PST THIS MORNING... * WHAT...Southeast winds 20 to 30 mph with gusts up to 55 mph expected. * WHERE...The East Bay and San Francisco Bay Shoreline, The Santa Clara Valley and Eastern Hills, The Santa Cruz Mountains, Most of San Benito County and the Cholame Hills in Southeast Monterey County, North Bay Interior Mountains, and North Bay Interior Valleys. * WHEN...Until 8 AM PST this morning. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution. && $$ DialH
222 WWUS76 KMTR 241308 NPWMTR URGENT - WEATHER MESSAGE National Weather Service San Francisco CA 508 AM PST Wed Dec 24 2025 CAZ006-505-509-517-528>530-242115- /O.NEW.KMTR.HW.W.0005.251225T0400Z-251225T1800Z/ /O.CON.KMTR.HW.W.0004.000000T0000Z-251224T1600Z/ San Francisco-Coastal North Bay Including Point Reyes National Seashore-San Francisco Peninsula Coast-Santa Lucia Mountains and Los Padres National Forest-Northern Salinas Valley/Hollister Valley and Carmel Valley-Northern Monterey Bay-Southern Monterey Bay and Big Sur Coast- 508 AM PST Wed Dec 24 2025 ...HIGH WIND WARNING IN EFFECT FROM 8 PM THIS EVENING TO 10 AM PST THURSDAY... ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 8 AM PST THIS MORNING... * WHAT...For the first High Wind Warning, southwest winds 15 to 25 mph with gusts up to 45 mph. For the second High Wind Warning, south winds 25 to 35 mph with gusts up to 65 mph expected. * WHERE...Monterey Bay and the Big Sur Coast, Interior Monterey County and the Santa Lucia Range, San Francisco, Coastal North Bay Including Point Reyes National Seashore, San Francisco Peninsula Coast, and Northern Salinas Valley/Hollister Valley and Carmel Valley. * WHEN...For the first High Wind Warning, until 8 AM PST this morning. For the second High Wind Warning, from 8 PM this evening to 10 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. Damaging winds could down trees, snap power lines, and result in property damage. Widespread power outages are possible. Travel could be extremely difficult and hazardous, especially for high profile vehicles. The combination of wind and moist soils will increase the risk for downed trees. Strong winds may move loose debris, result in minor damage property, and cause sporadic power outages. Travel could become difficult, especially for high profile vehicles. PRECAUTIONARY/PREPAREDNESS ACTIONS... People are urged to secure loose objects that could be blown around or damaged by the wind. Secure loose outdoor objects that could be blown around or damaged by the wind. && $$ CAZ502-516-242115- /O.NEW.KMTR.WI.Y.0019.251225T0400Z-251225T1800Z/ /O.CON.KMTR.HW.W.0004.000000T0000Z-251224T1600Z/ Marin Coastal Range-Southern Salinas Valley/Arroyo Seco and Lake San Antonio- 508 AM PST Wed Dec 24 2025 ...WIND ADVISORY IN EFFECT FROM 8 PM THIS EVENING TO 10 AM PST THURSDAY... ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 8 AM PST THIS MORNING... * WHAT...For the High Wind Warning, south winds 10 to 20 mph with gusts up to 40 mph. For the Wind Advisory, south winds 15 to 25 mph with gusts up to 60 mph expected. * WHERE...The Marin Hills, and Southern Salinas Valley/Arroyo Seco and Lake San Antonio. * WHEN...For the High Wind Warning, until 8 AM PST this morning. For the Wind Advisory, from 8 PM this evening to 10 AM PST Thursday. * IMPACTS...Damaging winds will blow down trees and power lines. Widespread power outages are expected. Travel will be difficult, especially for high profile vehicles. Damaging winds could down trees, snap power lines, and result in property damage. Widespread power outages are possible. Travel could be extremely difficult and hazardous, especially for high profile vehicles. The combination of wind and moist soils will increase the risk for downed trees. Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. Strong winds may move loose debris, result in minor damage property, and cause sporadic power outages. Travel could become difficult, especially for high profile vehicles. PRECAUTIONARY/PREPAREDNESS ACTIONS... People are urged to secure loose objects that could be blown around or damaged by the wind. Secure loose outdoor objects that could be blown around or damaged by the wind. Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution. && $$ CAZ503-241600- /O.CON.KMTR.HW.W.0004.000000T0000Z-251224T1600Z/ Sonoma Coastal Range- 508 AM PST Wed Dec 24 2025 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 8 AM PST THIS MORNING... * WHAT...Southwest winds 15 to 25 mph with gusts up to 50 mph. * WHERE...Western Sonoma County Hills. * WHEN...Until 8 AM PST this 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. Damaging winds could down trees, snap power lines, and result in property damage. Widespread power outages are possible. Travel could be extremely difficult and hazardous, especially for high profile vehicles. The combination of wind and moist soils will increase the risk for downed trees. PRECAUTIONARY/PREPAREDNESS ACTIONS... People are urged to secure loose objects that could be blown around or damaged by the wind. Secure loose outdoor objects that could be blown around or damaged by the wind. && $$ CAZ504-506-508-510-512>515-518-242115- /O.NEW.KMTR.WI.Y.0019.251225T0400Z-251225T1800Z/ /O.CON.KMTR.WI.Y.0018.000000T0000Z-251224T1600Z/ North Bay Interior Mountains-North Bay Interior Valleys-San Francisco Bay Shoreline-East Bay Interior Valleys-Santa Cruz Mountains-Santa Clara Valley Including San Jose-Eastern Santa Clara Hills-East Bay Hills-Mountains of San Benito County And Interior Monterey County including Pinnacles National Park- 508 AM PST Wed Dec 24 2025 ...WIND ADVISORY IN EFFECT FROM 8 PM THIS EVENING TO 10 AM PST THURSDAY... ...WIND ADVISORY REMAINS IN EFFECT UNTIL 8 AM PST THIS MORNING... * WHAT...For the first Wind Advisory, southwest winds 20 to 30 mph with gusts up to 50 mph. For the second Wind Advisory, south winds 20 to 30 mph with gusts up to 65 mph expected. * WHERE...The East Bay and San Francisco Bay Shoreline, The Santa Clara Valley and Eastern Hills, The Santa Cruz Mountains, Most of San Benito County and the Cholame Hills in Southeast Monterey County, North Bay Interior Mountains, and North Bay Interior Valleys. * WHEN...For the first Wind Advisory, until 8 AM PST this morning. For the second Wind Advisory, from 8 PM this evening to 10 AM PST Thursday. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. Strong winds may move loose debris, result in minor damage property, and cause sporadic power outages. Travel could become difficult, especially for high profile vehicles. The combination of wind and moist soils will increase the risk for downed trees. PRECAUTIONARY/PREPAREDNESS ACTIONS... Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution. && $$ BKM
691 WWUS76 KMTR 241517 NPWMTR URGENT - WEATHER MESSAGE National Weather Service San Francisco CA 717 AM PST Wed Dec 24 2025 CAZ006-505-509-517-528>530-242330- /O.CAN.KMTR.HW.W.0004.000000T0000Z-251224T1600Z/ /O.CON.KMTR.HW.W.0005.251225T0400Z-251225T1800Z/ San Francisco-Coastal North Bay Including Point Reyes National Seashore-San Francisco Peninsula Coast-Santa Lucia Mountains and Los Padres National Forest-Northern Salinas Valley/Hollister Valley and Carmel Valley-Northern Monterey Bay-Southern Monterey Bay and Big Sur Coast- 717 AM PST Wed Dec 24 2025 ...HIGH WIND WARNING IS CANCELLED... ...HIGH WIND WARNING REMAINS IN EFFECT FROM 8 PM THIS EVENING TO 10 AM PST THURSDAY... * WHAT...South winds 25 to 35 mph with gusts up to 65 mph expected. * WHERE...Monterey Bay and the Big Sur Coast, Interior Monterey County and the Santa Lucia Range, San Francisco, Coastal North Bay Including Point Reyes National Seashore, San Francisco Peninsula Coast, and Northern Salinas Valley/Hollister Valley and Carmel Valley. * WHEN...From 8 PM this evening to 10 AM PST Thursday. * IMPACTS...Damaging winds could down trees, snap power lines, and result in property damage. Widespread power outages are possible. Travel could be extremely difficult and hazardous, especially for high profile vehicles. Strong winds may move loose debris, result in minor damage property, and cause sporadic power outages. Travel could become difficult, especially for high profile vehicles. The combination of wind and moist soils will increase the risk for downed trees. PRECAUTIONARY/PREPAREDNESS ACTIONS... People are urged to secure loose objects that could be blown around or damaged by the wind. && $$ CAZ502-516-242330- /O.CAN.KMTR.HW.W.0004.000000T0000Z-251224T1600Z/ /O.CON.KMTR.WI.Y.0019.251225T0400Z-251225T1800Z/ Marin Coastal Range-Southern Salinas Valley/Arroyo Seco and Lake San Antonio- 717 AM PST Wed Dec 24 2025 ...HIGH WIND WARNING IS CANCELLED... ...WIND ADVISORY REMAINS IN EFFECT FROM 8 PM THIS EVENING TO 10 AM PST THURSDAY... * WHAT...South winds 15 to 25 mph with gusts up to 55 mph expected. * WHERE...The Marin Hills, and Southern Salinas Valley/Arroyo Seco and Lake San Antonio. * WHEN...From 8 PM this evening to 10 AM PST Thursday. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. Strong winds may move loose debris, result in minor damage property, and cause sporadic power outages. Travel could become difficult, especially for high profile vehicles. The combination of wind and moist soils will increase the risk for downed trees. PRECAUTIONARY/PREPAREDNESS ACTIONS... Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution. && $$ CAZ503-241630- /O.CAN.KMTR.HW.W.0004.000000T0000Z-251224T1600Z/ Sonoma Coastal Range- 717 AM PST Wed Dec 24 2025 ...HIGH WIND WARNING IS CANCELLED... The threat has ended. $$ CAZ504-506-508-510-512>515-518-242330- /O.CAN.KMTR.WI.Y.0018.000000T0000Z-251224T1600Z/ /O.CON.KMTR.WI.Y.0019.251225T0400Z-251225T1800Z/ North Bay Interior Mountains-North Bay Interior Valleys-San Francisco Bay Shoreline-East Bay Interior Valleys-Santa Cruz Mountains-Santa Clara Valley Including San Jose-Eastern Santa Clara Hills-East Bay Hills-Mountains of San Benito County And Interior Monterey County including Pinnacles National Park- 717 AM PST Wed Dec 24 2025 ...WIND ADVISORY IS CANCELLED... ...WIND ADVISORY REMAINS IN EFFECT FROM 8 PM THIS EVENING TO 10 AM PST THURSDAY... * WHAT...South winds 20 to 30 mph with gusts up to 55 mph expected. * WHERE...The East Bay and San Francisco Bay Shoreline, The Santa Clara Valley and Eastern Hills, The Santa Cruz Mountains, Most of San Benito County and the Cholame Hills in Southeast Monterey County, North Bay Interior Mountains, and North Bay Interior Valleys. * WHEN...From 8 PM this evening to 10 AM PST Thursday. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. Strong winds may move loose debris, result in minor damage property, and cause sporadic power outages. Travel could become difficult, especially for high profile vehicles. The combination of wind and moist soils will increase the risk for downed trees. PRECAUTIONARY/PREPAREDNESS ACTIONS... Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution. && $$ Palmer
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 Dec 22, 4:46 PM PST, 1 hour 13 minutes earlier. Its key messages:
- Updated at 407 PM PST Mon Dec 22 2025
- Flood Watch remains in effect for the North Bay through Friday evening; Flood Watch for the rest of Bay Area and Central Coast begins Tuesday morning at 10 AM PST
- Light to moderate rain at times continues this evening with minor nuisance flooding and rises in rivers/streams across North Bay possible. Turn Around, Don't Drown!
- Increasing chances for urban flooding and extensive travel delays late Tuesday into early Friday across entire Bay Area and Central Coast as widespread heavy rain returns
- Very hazardous, impactful winds Tuesday through early Friday along our entire coastline and higher elevations inland with power outages likely
- A slight chance of severe thunderstorms with strong wind gusts late Tuesday through Thursday
- Dangerous beach conditions anticipated late Tuesday through Friday for all Pacific Coast Beaches&&
Area forecast discussion, Dec 22, 4:46 PM PST, 1 hour 13 minutes before
Area Forecast Discussion
National Weather Service San Francisco CA
446 PM PST Mon Dec 22 2025
...New AVIATION...
.KEY MESSAGES...
Updated at 407 PM PST Mon Dec 22 2025
- Flood Watch remains in effect for the North Bay through Friday evening;
Flood Watch for the rest of Bay Area and Central Coast begins
Tuesday morning at 10 AM PST
- Light to moderate rain at times continues this evening with
minor nuisance flooding and rises in rivers/streams across
North Bay possible. Turn Around, Don't Drown!
- Increasing chances for urban flooding and extensive travel
delays late Tuesday into early Friday across entire Bay Area
and Central Coast as widespread heavy rain returns
- Very hazardous, impactful winds Tuesday through early Friday along
our entire coastline and higher elevations inland with power
outages likely
- A slight chance of severe thunderstorms with strong wind gusts
late Tuesday through Thursday
- Dangerous beach conditions anticipated late Tuesday through
Friday for all Pacific Coast Beaches&&
.SHORT TERM...
Issued at 407 PM PST Mon Dec 22 2025
(This evening through Wednesday)
We're in a welcomed lull of moderate to heavy rainfall through late
Tuesday afternoon for inland low lying areas. However, our coastal
ranges, especially in the North Bay may see between 0.50"-1.00" of
rain through tomorrow afternoon.
Meanwhile, overnight, a rapidly intensifying area of low pressure
well offshore, will begin its trek northeast taking aim at NorCal
and the Bay Area. The powerful synoptic storm system will bring its
own source of moisture while combining with the remaining moisture
from the shifting atmospheric river to the south. The closed low
associated with the powerful offshore troughing won't be off the
coast of Washington until late tom tomorrow night, a testament to the
potent strength in the sharpening trough to our west. The winds over
our coastal waters will begin to ramp up Tuesday morning. By Tuesday
afternoon and evening along our coast there is approximately a 80%-
90% chance of wind gusts exceeding 40 MPH, and 50%-70% chance
farther inland, especially at higher elevations. Bottom line, it's
going to start to get windy across our entire area the second half
of tomorrow. The first wave of moderate to heavy rainfall will reach
the North Bay soon after sunset tomorrow, with up to an inch of rain
along our coastal ranges and the North Bay by midnight.
&&
.SHORT TERM...
Issued at 407 PM PST Mon Dec 22 2025
(This evening through Wednesday)
We're in a welcomed lull of moderate to heavy rainfall through late
Tuesday afternoon for inland low lying areas. However, our coastal
ranges, especially in the North Bay may see between 0.50"-1.00" of
rain through tomorrow afternoon.
Meanwhile, overnight, a rapidly intensifying area of low pressure
well offshore, will begin its trek northeast taking aim at NorCal
and the Bay Area. The powerful synoptic storm system will bring its
own source of moisture while combining with the remaining moisture
from the shifting atmospheric river to the south. The closed low
associated with the powerful offshore troughing won't be off the
coast of Washington until late tom tomorrow night, a testament to the
potent strength in the sharpening trough to our west. The winds over
our coastal waters will begin to ramp up Tuesday morning. By Tuesday
afternoon and evening along our coast there is approximately a 80%-
90% chance of wind gusts exceeding 40 MPH, and 50%-70% chance
farther inland, especially at higher elevations. Bottom line, it's
going to start to get windy across our entire area the second half
of tomorrow. The first wave of moderate to heavy rainfall will reach
the North Bay soon after sunset tomorrow, with up to an inch of rain
along our coastal ranges and the North Bay by midnight.
&&
.LONG TERM...
Issued at 407 PM PST Mon Dec 22 2025
(Wednesday night through next Monday)
Tuesday night into Wednesday morning will see the first of several
waves of strong winds and heavy rainfall move onshore. As mentioned
above, the North Bay will feel the leading edge of the first wave of
strong showers, scattered thunderstorms and moderate to heavy
rainfall at times, but the impacts will quickly spread south and
inland across our entire area by sunrise Wednesday morning. While
the first strong low pressure moves onshore early Wednesday morning,
a second more powerful area of low pressure will quickly approach on
the heels of the first. As the upper trough offshore sharpens and
continues to deepen, it will also take on a negative tilt by
Wednesday evening. The strengthening surface low and wide swath of
divergent, 90kt-100kt 500mb flow, will produce an environment
favorable for low top supercells and the potential for waterspouts.
There is a small but non-zero chance for any water spouts that do
develop to move onshore as short lived tornadoes or produce strong
straight line winds, first along the Central Coast from late
Wednesday afternoon through late Wednesday night, then farther north
into the Bay Area and North Bay during the overnight into early
Thursday (Christmas) morning.
That part of the forecast will jump off the page, but the primary
concerns continue to be the widespread moderate to heavy rainfall
leading to urban flooding, land/rock slides, downed trees and
overall hazardous driving conditions during two of the busiest
travel days of the year. Give yourself plenty of time to reach your
destination and slow down, keeping plenty of distance between you
and other vehicles. Along with the extensive travel delays, there is
potential for widespread power outages as the numerous (at least 3-
4) lines of showers, thunderstorms and strong winds move onshore
over a 60hr period from late tomorrow night through early Friday
morning.
The urban and nuisance flooding potential in poor drainage areas
will be widespread across our whole area late Tuesday through early
Friday. Flooding of rivers, streams and creeks will mostly remain in
the North Bay, which has seen the most rainfall over the past few
days of the atmospheric river out ahead of the more progressive
waves ejecting inland from the powerful offshore trough. The Russian
River in Geyserville is forecast to approach action stage early
Wednesday morning after sunrise. The Mark West Creek near Mirabel
Heights is currently in action stage, will recede gradually during
the day tomorrow, but forecasted to reach minor flooding stage by
early Christmas morning, peak Friday morning below moderate Friday
morning and then begin to recede through the weekend.
&&
.AVIATION...
(00Z TAFS)
Issued at 446 PM PST Mon Dec 22 2025
Rain has shifted northwards, leaving showers confined mainly to the
North Bay at this time. This will likely hold through the evening
and overnight hours, with perhaps some vicinity showers being
possible along the coast and perhaps flirting around San Francisco
Bay. CIGs look to vary between VFR to IFR and will likely continue
through the evening, with the lowest CIGs associated with showers.
Otherwise look for VFR to MVFR conditions. Winds gradually pick up
late Tuesday morning and into the afternoon, before ramping up
Tuesday night into Wednesday.
Vicinity of SFO...Satellite shows some a mix of cumulus and cirrus
around the Bay Area, likely leading to some of the lower CIGS
currently being reported at the time of this AFD. Expect this to
continue for the next couple of hours, with VCSH or -SHRA being the
cause of the lowered CIGs. Shower chances should ease overnight,
with the current TAF reflecting the RRFS based on current radar
trends. Confidence is medium on precip timing overnight and into
tomorrow. Reviewing the previous discussion, there is still some
concern on the light winds overnight, wet grounds, and radiational
cooling. This could leading to some localized fog development, bit
this could be limited by the cirrus. Looking at Tuesday afternoon
and beyond, we're watching the wind threat. A storm system will
bring rapidly increasing winds from the south late Tuesday afternoon
and into the evening. Expect winds to peak late in the day and
overnight with gusts exceeding 40 knots.
SFO Bridge Approach...Similar to SFO.
Monterey Bay Terminals...VFR conditions look to prevail and be
accompanied with light winds through the evening. Some showers may
pass overnight, which could bring some periods of MVFR CIGs.
Confidence is medium on the overnight cloud deck as most models
flirt with MVFR CIGs around MRY and SNS. Tomorrow southerly winds
begin to increase in the afternoon.
&&
.MARINE...
(Tonight through next Sunday)
Issued at 407 PM PST Mon Dec 22 2025
Life threatening conditions will develop across all water on
Tuesday into Tuesday night. Storm conditions will dominate the
open Pacific waters while Gale conditions plague the bays. Steep
open ocean waves will be to near 20 feet under these winds. While
a lull in winds will occur during the day Wednesday, strong gales
are expected again Wednesday night into Thursday morning.
&&
.MTR WATCHES/WARNINGS/ADVISORIES...
CA...Flood Watch from Tuesday morning through Friday evening for
CAZ006-508>510-512>518-528>530.
High Wind Watch from Tuesday evening through late Tuesday night
for CAZ006-502>506-508>510-512>518-528>530.
Flood Watch through Friday evening for CAZ502>506.
PZ...Gale Warning from 9 AM Tuesday to 3 AM PST Wednesday for Mry Bay-
SF Bay N of Bay Bridge.
Storm Warning from 9 AM Tuesday to 3 AM PST Wednesday for Pigeon
Pt to Pt Pinos 0-10 nm-Pigeon Pt to Pt Pinos 10-60 NM-Pt
Arena to Pt Reyes 0-10 nm-Pt Arena to Pt Reyes 10-60 NM-Pt
Pinos to Pt Piedras Blancas 0-10 nm-Pt Reyes to Pigeon Pt 0-
10 nm.
&&
SHORT TERM...JM
LONG TERM....JM
AVIATION...KR
MARINE...BFG
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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 |
|---|---|---|---|---|
| Dec 22, 5:59 PM PST | Wind Advisory | MTR | Alameda, Contra Costa, Marin, Monterey, Napa, San Benito and 5 more | 19 hr |
| Dec 23, 2:18 AM PST | Gale Warning | MTR | 26 hr | |
| Dec 23, 2:18 AM PST | Small Craft Advisory | MTR | 7 hr | |
| Dec 23, 4:28 AM PST | Beach Hazards Statement | MTR | Marin, Monterey, City and County of San Francisco, San Mateo, Santa Cruz, Sonoma | 72 hr |
| Dec 23, 1:09 PM PST | Wind Advisory | MTR | Alameda, Contra Costa, Marin, Monterey, Napa, San Benito and 4 more | 18 hr |
Nearby
High Wind Warnings in California, 2025Every high wind warning in 2025
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.