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Home Return to list Dense Fog Advisory 0003 Issued by the San Francisco Bay Area / Monterey Forecast Office
Action: New Issued At: 2026-02-26 01:40:42 379 WWUS76 KMTR 260740 NPWMTR URGENT - WEATHER MESSAGE National Weather Service San Francisco CA 1140 PM PST Wed Feb 25 2026 CAZ506-261900- /O.NEW.KMTR.FG.Y.0003.260226T0740Z-260226T1900Z/ North Bay Interior Valleys- 1140 PM PST Wed Feb 25 2026 ...DENSE FOG ADVISORY IN EFFECT UNTIL 11 AM PST THURSDAY... * WHAT...Visibility one quarter mile or less in dense fog. * WHERE...North Bay Interior Valleys. * WHEN...Until 11 AM PST Thursday. * IMPACTS...Low visibility could make driving conditions hazardous. PRECAUTIONARY/PREPAREDNESS ACTIONS... If driving, slow down, use your headlights, and leave plenty of distance ahead of you. && $$ DialH Action: Continued Issued At: 2026-02-26 04:19:04 895 WWUS76 KMTR 261018 NPWMTR URGENT - WEATHER MESSAGE National Weather Service San Francisco CA 218 AM PST Thu Feb 26 2026 CAZ516-261900- /O.EXA.KMTR.FG.Y.0003.000000T0000Z-260226T1900Z/ Southern Salinas Valley/Arroyo Seco and Lake San Antonio- 218 AM PST Thu Feb 26 2026 ...DENSE FOG ADVISORY IN EFFECT UNTIL 11 AM PST THIS MORNING... * WHAT...Visibility one quarter mile or less in dense fog. * WHERE...Southern Salinas Valley/Arroyo Seco and Lake San Antonio. * WHEN...Until 11 AM PST this morning. * IMPACTS...Low visibility could make driving conditions hazardous. PRECAUTIONARY/PREPAREDNESS ACTIONS... If driving, slow down, use your headlights, and leave plenty of distance ahead of you. && $$ CAZ506-261900- /O.CON.KMTR.FG.Y.0003.000000T0000Z-260226T1900Z/ North Bay Interior Valleys- 218 AM PST Thu Feb 26 2026 ...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL 11 AM PST THIS MORNING... * WHAT...Visibility one quarter mile or less in dense fog. * WHERE...North Bay Interior Valleys. * WHEN...Until 11 AM PST this morning. * IMPACTS...Low visibility could make driving conditions hazardous. PRECAUTIONARY/PREPAREDNESS ACTIONS... If driving, slow down, use your headlights, and leave plenty of distance ahead of you. && $$ DialH Action: Area Extended Issued At: 2026-02-26 04:19:04 895 WWUS76 KMTR 261018 NPWMTR URGENT - WEATHER MESSAGE National Weather Service San Francisco CA 218 AM PST Thu Feb 26 2026 CAZ516-261900- /O.EXA.KMTR.FG.Y.0003.000000T0000Z-260226T1900Z/ Southern Salinas Valley/Arroyo Seco and Lake San Antonio- 218 AM PST Thu Feb 26 2026 ...DENSE FOG ADVISORY IN EFFECT UNTIL 11 AM PST THIS MORNING... * WHAT...Visibility one quarter mile or less in dense fog. * WHERE...Southern Salinas Valley/Arroyo Seco and Lake San Antonio. * WHEN...Until 11 AM PST this morning. * IMPACTS...Low visibility could make driving conditions hazardous. PRECAUTIONARY/PREPAREDNESS ACTIONS... If driving, slow down, use your headlights, and leave plenty of distance ahead of you. && $$ CAZ506-261900- /O.CON.KMTR.FG.Y.0003.000000T0000Z-260226T1900Z/ North Bay Interior Valleys- 218 AM PST Thu Feb 26 2026 ...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL 11 AM PST THIS MORNING... * WHAT...Visibility one quarter mile or less in dense fog. * WHERE...North Bay Interior Valleys. * WHEN...Until 11 AM PST this morning. * IMPACTS...Low visibility could make driving conditions hazardous. PRECAUTIONARY/PREPAREDNESS ACTIONS... If driving, slow down, use your headlights, and leave plenty of distance ahead of you. && $$ DialH Action: Area Extended Issued At: 2026-02-26 04:57:05 651 WWUS76 KMTR 261056 NPWMTR URGENT - WEATHER MESSAGE National Weather Service San Francisco CA 256 AM PST Thu Feb 26 2026 CAZ528-261900- /O.EXA.KMTR.FG.Y.0003.000000T0000Z-260226T1900Z/ Northern Salinas Valley/Hollister Valley and Carmel Valley- 256 AM PST Thu Feb 26 2026 ...DENSE FOG ADVISORY IN EFFECT UNTIL 11 AM PST THIS MORNING... * WHAT...Visibility 3 to 4 miles in dense fog. * WHERE...Northern Salinas Valley/Hollister Valley and Carmel Valley. * WHEN...Until 11 AM PST this morning. * IMPACTS...Low visibility could make driving conditions hazardous. PRECAUTIONARY/PREPAREDNESS ACTIONS... If driving, slow down, use your headlights, and leave plenty of distance ahead of you. && $$ CAZ506-261900- /O.CON.KMTR.FG.Y.0003.000000T0000Z-260226T1900Z/ North Bay Interior Valleys- 256 AM PST Thu Feb 26 2026 ...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL 11 AM PST THIS MORNING... * WHAT...Visibility one quarter mile or less in dense fog. * WHERE...North Bay Interior Valleys. * WHEN...Until 11 AM PST this morning. * IMPACTS...Low visibility could make driving conditions hazardous. PRECAUTIONARY/PREPAREDNESS ACTIONS... If driving, slow down, use your headlights, and leave plenty of distance ahead of you. && $$ CAZ516-261900- /O.CON.KMTR.FG.Y.0003.000000T0000Z-260226T1900Z/ Southern Salinas Valley/Arroyo Seco and Lake San Antonio- 256 AM PST Thu Feb 26 2026 ...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL 11 AM PST THIS MORNING... * WHAT...Visibility one quarter mile or less in dense fog. * WHERE...Southern Salinas Valley/Arroyo Seco and Lake San Antonio. * WHEN...Until 11 AM PST this morning. * IMPACTS...Low visibility could make driving conditions hazardous. PRECAUTIONARY/PREPAREDNESS ACTIONS... If driving, slow down, use your headlights, and leave plenty of distance ahead of you. && $$ DialH Action: Continued Issued At: 2026-02-26 04:57:05 651 WWUS76 KMTR 261056 NPWMTR URGENT - WEATHER MESSAGE National Weather Service San Francisco CA 256 AM PST Thu Feb 26 2026 CAZ528-261900- /O.EXA.KMTR.FG.Y.0003.000000T0000Z-260226T1900Z/ Northern Salinas Valley/Hollister Valley and Carmel Valley- 256 AM PST Thu Feb 26 2026 ...DENSE FOG ADVISORY IN EFFECT UNTIL 11 AM PST THIS MORNING... * WHAT...Visibility 3 to 4 miles in dense fog. * WHERE...Northern Salinas Valley/Hollister Valley and Carmel Valley. * WHEN...Until 11 AM PST this morning. * IMPACTS...Low visibility could make driving conditions hazardous. PRECAUTIONARY/PREPAREDNESS ACTIONS... If driving, slow down, use your headlights, and leave plenty of distance ahead of you. && $$ CAZ506-261900- /O.CON.KMTR.FG.Y.0003.000000T0000Z-260226T1900Z/ North Bay Interior Valleys- 256 AM PST Thu Feb 26 2026 ...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL 11 AM PST THIS MORNING... * WHAT...Visibility one quarter mile or less in dense fog. * WHERE...North Bay Interior Valleys. * WHEN...Until 11 AM PST this morning. * IMPACTS...Low visibility could make driving conditions hazardous. PRECAUTIONARY/PREPAREDNESS ACTIONS... If driving, slow down, use your headlights, and leave plenty of distance ahead of you. && $$ CAZ516-261900- /O.CON.KMTR.FG.Y.0003.000000T0000Z-260226T1900Z/ Southern Salinas Valley/Arroyo Seco and Lake San Antonio- 256 AM PST Thu Feb 26 2026 ...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL 11 AM PST THIS MORNING... * WHAT...Visibility one quarter mile or less in dense fog. * WHERE...Southern Salinas Valley/Arroyo Seco and Lake San Antonio. * WHEN...Until 11 AM PST this morning. * IMPACTS...Low visibility could make driving conditions hazardous. PRECAUTIONARY/PREPAREDNESS ACTIONS... If driving, slow down, use your headlights, and leave plenty of distance ahead of you. && $$ DialH Action: Continued Issued At: 2026-02-26 04:57:05 651 WWUS76 KMTR 261056 NPWMTR URGENT - WEATHER MESSAGE National Weather Service San Francisco CA 256 AM PST Thu Feb 26 2026 CAZ528-261900- /O.EXA.KMTR.FG.Y.0003.000000T0000Z-260226T1900Z/ Northern Salinas Valley/Hollister Valley and Carmel Valley- 256 AM PST Thu Feb 26 2026 ...DENSE FOG ADVISORY IN EFFECT UNTIL 11 AM PST THIS MORNING... * WHAT...Visibility 3 to 4 miles in dense fog. * WHERE...Northern Salinas Valley/Hollister Valley and Carmel Valley. * WHEN...Until 11 AM PST this morning. * IMPACTS...Low visibility could make driving conditions hazardous. PRECAUTIONARY/PREPAREDNESS ACTIONS... If driving, slow down, use your headlights, and leave plenty of distance ahead of you. && $$ CAZ506-261900- /O.CON.KMTR.FG.Y.0003.000000T0000Z-260226T1900Z/ North Bay Interior Valleys- 256 AM PST Thu Feb 26 2026 ...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL 11 AM PST THIS MORNING... * WHAT...Visibility one quarter mile or less in dense fog. * WHERE...North Bay Interior Valleys. * WHEN...Until 11 AM PST this morning. * IMPACTS...Low visibility could make driving conditions hazardous. PRECAUTIONARY/PREPAREDNESS ACTIONS... If driving, slow down, use your headlights, and leave plenty of distance ahead of you. && $$ CAZ516-261900- /O.CON.KMTR.FG.Y.0003.000000T0000Z-260226T1900Z/ Southern Salinas Valley/Arroyo Seco and Lake San Antonio- 256 AM PST Thu Feb 26 2026 ...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL 11 AM PST THIS MORNING... * WHAT...Visibility one quarter mile or less in dense fog. * WHERE...Southern Salinas Valley/Arroyo Seco and Lake San Antonio. * WHEN...Until 11 AM PST this morning. * IMPACTS...Low visibility could make driving conditions hazardous. PRECAUTIONARY/PREPAREDNESS ACTIONS... If driving, slow down, use your headlights, and leave plenty of distance ahead of you. && $$ DialH Action: Continued Issued At: 2026-02-26 07:49:10 189 WWUS76 KMTR 261348 NPWMTR URGENT - WEATHER MESSAGE National Weather Service San Francisco CA 548 AM PST Thu Feb 26 2026 CAZ006-508-510-261700- /O.EXB.KMTR.FG.Y.0003.000000T0000Z-260226T1700Z/ San Francisco-San Francisco Bay Shoreline-East Bay Interior Valleys- 548 AM PST Thu Feb 26 2026 ...DENSE FOG ADVISORY IN EFFECT UNTIL 9 AM PST THIS MORNING... * WHAT...Visibility 2 to 3 miles with patchy dense fog with visibilities one quarter mile or less. * WHERE...East Bay Interior Valleys, San Francisco, and San Francisco Bay Shoreline. * WHEN...Until 9 AM PST this morning. * IMPACTS...Low visibility could make driving conditions hazardous. PRECAUTIONARY/PREPAREDNESS ACTIONS... If driving, slow down, use your headlights, and leave plenty of distance ahead of you. Patchy dense fog will result in sudden changes in visibility. Visibility at times will fall below one-quarter of a mile. Use your low beam headlights, slow down, and be prepared for periods of hazardous driving conditions. && $$ CAZ506-261900- /O.CON.KMTR.FG.Y.0003.000000T0000Z-260226T1900Z/ North Bay Interior Valleys- 548 AM PST Thu Feb 26 2026 ...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL 11 AM PST THIS MORNING... * WHAT...Visibility one quarter mile or less in dense fog. * WHERE...North Bay Interior Valleys. * WHEN...Until 11 AM PST this morning. * IMPACTS...Low visibility could make driving conditions hazardous. PRECAUTIONARY/PREPAREDNESS ACTIONS... If driving, slow down, use your headlights, and leave plenty of distance ahead of you. && $$ CAZ516-528-261900- /O.CON.KMTR.FG.Y.0003.000000T0000Z-260226T1900Z/ Southern Salinas Valley/Arroyo Seco and Lake San Antonio-Northern Salinas Valley/Hollister Valley and Carmel Valley- 548 AM PST Thu Feb 26 2026 ...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL 11 AM PST THIS MORNING... * WHAT...Visibility one quarter mile or less in dense fog. * WHERE...The Salinas and Carmel Valleys and Hollister Area. * WHEN...Until 11 AM PST this morning. * IMPACTS...Low visibility could make driving conditions hazardous. PRECAUTIONARY/PREPAREDNESS ACTIONS... If driving, slow down, use your headlights, and leave plenty of distance ahead of you. && $$ DialH Action: Continued Issued At: 2026-02-26 07:49:10 189 WWUS76 KMTR 261348 NPWMTR URGENT - WEATHER MESSAGE National Weather Service San Francisco CA 548 AM PST Thu Feb 26 2026 CAZ006-508-510-261700- /O.EXB.KMTR.FG.Y.0003.000000T0000Z-260226T1700Z/ San Francisco-San Francisco Bay Shoreline-East Bay Interior Valleys- 548 AM PST Thu Feb 26 2026 ...DENSE FOG ADVISORY IN EFFECT UNTIL 9 AM PST THIS MORNING... * WHAT...Visibility 2 to 3 miles with patchy dense fog with visibilities one quarter mile or less. * WHERE...East Bay Interior Valleys, San Francisco, and San Francisco Bay Shoreline. * WHEN...Until 9 AM PST this morning. * IMPACTS...Low visibility could make driving conditions hazardous. PRECAUTIONARY/PREPAREDNESS ACTIONS... If driving, slow down, use your headlights, and leave plenty of distance ahead of you. Patchy dense fog will result in sudden changes in visibility. Visibility at times will fall below one-quarter of a mile. Use your low beam headlights, slow down, and be prepared for periods of hazardous driving conditions. && $$ CAZ506-261900- /O.CON.KMTR.FG.Y.0003.000000T0000Z-260226T1900Z/ North Bay Interior Valleys- 548 AM PST Thu Feb 26 2026 ...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL 11 AM PST THIS MORNING... * WHAT...Visibility one quarter mile or less in dense fog. * WHERE...North Bay Interior Valleys. * WHEN...Until 11 AM PST this morning. * IMPACTS...Low visibility could make driving conditions hazardous. PRECAUTIONARY/PREPAREDNESS ACTIONS... If driving, slow down, use your headlights, and leave plenty of distance ahead of you. && $$ CAZ516-528-261900- /O.CON.KMTR.FG.Y.0003.000000T0000Z-260226T1900Z/ Southern Salinas Valley/Arroyo Seco and Lake San Antonio-Northern Salinas Valley/Hollister Valley and Carmel Valley- 548 AM PST Thu Feb 26 2026 ...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL 11 AM PST THIS MORNING... * WHAT...Visibility one quarter mile or less in dense fog. * WHERE...The Salinas and Carmel Valleys and Hollister Area. * WHEN...Until 11 AM PST this morning. * IMPACTS...Low visibility could make driving conditions hazardous. PRECAUTIONARY/PREPAREDNESS ACTIONS... If driving, slow down, use your headlights, and leave plenty of distance ahead of you. && $$ DialH Action: Time and Area Extended Issued At: 2026-02-26 07:49:10 189 WWUS76 KMTR 261348 NPWMTR URGENT - WEATHER MESSAGE National Weather Service San Francisco CA 548 AM PST Thu Feb 26 2026 CAZ006-508-510-261700- /O.EXB.KMTR.FG.Y.0003.000000T0000Z-260226T1700Z/ San Francisco-San Francisco Bay Shoreline-East Bay Interior Valleys- 548 AM PST Thu Feb 26 2026 ...DENSE FOG ADVISORY IN EFFECT UNTIL 9 AM PST THIS MORNING... * WHAT...Visibility 2 to 3 miles with patchy dense fog with visibilities one quarter mile or less. * WHERE...East Bay Interior Valleys, San Francisco, and San Francisco Bay Shoreline. * WHEN...Until 9 AM PST this morning. * IMPACTS...Low visibility could make driving conditions hazardous. PRECAUTIONARY/PREPAREDNESS ACTIONS... If driving, slow down, use your headlights, and leave plenty of distance ahead of you. Patchy dense fog will result in sudden changes in visibility. Visibility at times will fall below one-quarter of a mile. Use your low beam headlights, slow down, and be prepared for periods of hazardous driving conditions. && $$ CAZ506-261900- /O.CON.KMTR.FG.Y.0003.000000T0000Z-260226T1900Z/ North Bay Interior Valleys- 548 AM PST Thu Feb 26 2026 ...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL 11 AM PST THIS MORNING... * WHAT...Visibility one quarter mile or less in dense fog. * WHERE...North Bay Interior Valleys. * WHEN...Until 11 AM PST this morning. * IMPACTS...Low visibility could make driving conditions hazardous. PRECAUTIONARY/PREPAREDNESS ACTIONS... If driving, slow down, use your headlights, and leave plenty of distance ahead of you. && $$ CAZ516-528-261900- /O.CON.KMTR.FG.Y.0003.000000T0000Z-260226T1900Z/ Southern Salinas Valley/Arroyo Seco and Lake San Antonio-Northern Salinas Valley/Hollister Valley and Carmel Valley- 548 AM PST Thu Feb 26 2026 ...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL 11 AM PST THIS MORNING... * WHAT...Visibility one quarter mile or less in dense fog. * WHERE...The Salinas and Carmel Valleys and Hollister Area. * WHEN...Until 11 AM PST this morning. * IMPACTS...Low visibility could make driving conditions hazardous. PRECAUTIONARY/PREPAREDNESS ACTIONS... If driving, slow down, use your headlights, and leave plenty of distance ahead of you. && $$ DialH Action: Continued Issued At: 2026-02-26 10:21:14 730 WWUS76 KMTR 261620 NPWMTR URGENT - WEATHER MESSAGE National Weather Service San Francisco CA 820 AM PST Thu Feb 26 2026 CAZ528-261730- /O.CAN.KMTR.FG.Y.0003.000000T0000Z-260226T1900Z/ Northern Salinas Valley/Hollister Valley and Carmel Valley- 820 AM PST Thu Feb 26 2026 ...DENSE FOG ADVISORY IS CANCELLED... Dense fog is no longer being observed as visibilities continue to improve. $$ CAZ006-508-510-261900- /O.EXT.KMTR.FG.Y.0003.000000T0000Z-260226T1900Z/ San Francisco-San Francisco Bay Shoreline-East Bay Interior Valleys- 820 AM PST Thu Feb 26 2026 ...DENSE FOG ADVISORY NOW IN EFFECT UNTIL 11 AM PST THIS MORNING... * WHAT...Visibility one quarter mile or less in dense fog. * WHERE...East Bay Interior Valleys, San Francisco, and San Francisco Bay Shoreline. * WHEN...Until 11 AM PST this morning. * IMPACTS...Low visibility could make driving conditions hazardous. PRECAUTIONARY/PREPAREDNESS ACTIONS... If driving, slow down, use your headlights, and leave plenty of distance ahead of you. Patchy dense fog will result in sudden changes in visibility. Visibility at times will fall below one-quarter of a mile. Use your low beam headlights, slow down, and be prepared for periods of hazardous driving conditions. && $$ CAZ506-261900- /O.CON.KMTR.FG.Y.0003.000000T0000Z-260226T1900Z/ North Bay Interior Valleys- 820 AM PST Thu Feb 26 2026 ...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL 11 AM PST THIS MORNING... * WHAT...Visibility one quarter mile or less in dense fog. * WHERE...North Bay Interior Valleys. * WHEN...Until 11 AM PST this morning. * IMPACTS...Low visibility could make driving conditions hazardous. PRECAUTIONARY/PREPAREDNESS ACTIONS... If driving, slow down, use your headlights, and leave plenty of distance ahead of you. && $$ CAZ516-261900- /O.CON.KMTR.FG.Y.0003.000000T0000Z-260226T1900Z/ Southern Salinas Valley/Arroyo Seco and Lake San Antonio- 820 AM PST Thu Feb 26 2026 ...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL 11 AM PST THIS MORNING... * WHAT...Visibility one quarter mile or less in dense fog. * WHERE...Southern Salinas Valley/Arroyo Seco and Lake San Antonio. * WHEN...Until 11 AM PST this morning. * IMPACTS...Low visibility could make driving conditions hazardous. PRECAUTIONARY/PREPAREDNESS ACTIONS... If driving, slow down, use your headlights, and leave plenty of distance ahead of you. && $$ RGass Action: Time Extended Issued At: 2026-02-26 10:21:14 730 WWUS76 KMTR 261620 NPWMTR URGENT - WEATHER MESSAGE National Weather Service San Francisco CA 820 AM PST Thu Feb 26 2026 CAZ528-261730- /O.CAN.KMTR.FG.Y.0003.000000T0000Z-260226T1900Z/ Northern Salinas Valley/Hollister Valley and Carmel Valley- 820 AM PST Thu Feb 26 2026 ...DENSE FOG ADVISORY IS CANCELLED... Dense fog is no longer being observed as visibilities continue to improve. $$ CAZ006-508-510-261900- /O.EXT.KMTR.FG.Y.0003.000000T0000Z-260226T1900Z/ San Francisco-San Francisco Bay Shoreline-East Bay Interior Valleys- 820 AM PST Thu Feb 26 2026 ...DENSE FOG ADVISORY NOW IN EFFECT UNTIL 11 AM PST THIS MORNING... * WHAT...Visibility one quarter mile or less in dense fog. * WHERE...East Bay Interior Valleys, San Francisco, and San Francisco Bay Shoreline. * WHEN...Until 11 AM PST this morning. * IMPACTS...Low visibility could make driving conditions hazardous. PRECAUTIONARY/PREPAREDNESS ACTIONS... If driving, slow down, use your headlights, and leave plenty of distance ahead of you. Patchy dense fog will result in sudden changes in visibility. Visibility at times will fall below one-quarter of a mile. Use your low beam headlights, slow down, and be prepared for periods of hazardous driving conditions. && $$ CAZ506-261900- /O.CON.KMTR.FG.Y.0003.000000T0000Z-260226T1900Z/ North Bay Interior Valleys- 820 AM PST Thu Feb 26 2026 ...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL 11 AM PST THIS MORNING... * WHAT...Visibility one quarter mile or less in dense fog. * WHERE...North Bay Interior Valleys. * WHEN...Until 11 AM PST this morning. * IMPACTS...Low visibility could make driving conditions hazardous. PRECAUTIONARY/PREPAREDNESS ACTIONS... If driving, slow down, use your headlights, and leave plenty of distance ahead of you. && $$ CAZ516-261900- /O.CON.KMTR.FG.Y.0003.000000T0000Z-260226T1900Z/ Southern Salinas Valley/Arroyo Seco and Lake San Antonio- 820 AM PST Thu Feb 26 2026 ...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL 11 AM PST THIS MORNING... * WHAT...Visibility one quarter mile or less in dense fog. * WHERE...Southern Salinas Valley/Arroyo Seco and Lake San Antonio. * WHEN...Until 11 AM PST this morning. * IMPACTS...Low visibility could make driving conditions hazardous. PRECAUTIONARY/PREPAREDNESS ACTIONS... If driving, slow down, use your headlights, and leave plenty of distance ahead of you. && $$ RGass Action: Continued Issued At: 2026-02-26 10:21:14 730 WWUS76 KMTR 261620 NPWMTR URGENT - WEATHER MESSAGE National Weather Service San Francisco CA 820 AM PST Thu Feb 26 2026 CAZ528-261730- /O.CAN.KMTR.FG.Y.0003.000000T0000Z-260226T1900Z/ Northern Salinas Valley/Hollister Valley and Carmel Valley- 820 AM PST Thu Feb 26 2026 ...DENSE FOG ADVISORY IS CANCELLED... Dense fog is no longer being observed as visibilities continue to improve. $$ CAZ006-508-510-261900- /O.EXT.KMTR.FG.Y.0003.000000T0000Z-260226T1900Z/ San Francisco-San Francisco Bay Shoreline-East Bay Interior Valleys- 820 AM PST Thu Feb 26 2026 ...DENSE FOG ADVISORY NOW IN EFFECT UNTIL 11 AM PST THIS MORNING... * WHAT...Visibility one quarter mile or less in dense fog. * WHERE...East Bay Interior Valleys, San Francisco, and San Francisco Bay Shoreline. * WHEN...Until 11 AM PST this morning. * IMPACTS...Low visibility could make driving conditions hazardous. PRECAUTIONARY/PREPAREDNESS ACTIONS... If driving, slow down, use your headlights, and leave plenty of distance ahead of you. Patchy dense fog will result in sudden changes in visibility. Visibility at times will fall below one-quarter of a mile. Use your low beam headlights, slow down, and be prepared for periods of hazardous driving conditions. && $$ CAZ506-261900- /O.CON.KMTR.FG.Y.0003.000000T0000Z-260226T1900Z/ North Bay Interior Valleys- 820 AM PST Thu Feb 26 2026 ...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL 11 AM PST THIS MORNING... * WHAT...Visibility one quarter mile or less in dense fog. * WHERE...North Bay Interior Valleys. * WHEN...Until 11 AM PST this morning. * IMPACTS...Low visibility could make driving conditions hazardous. PRECAUTIONARY/PREPAREDNESS ACTIONS... If driving, slow down, use your headlights, and leave plenty of distance ahead of you. && $$ CAZ516-261900- /O.CON.KMTR.FG.Y.0003.000000T0000Z-260226T1900Z/ Southern Salinas Valley/Arroyo Seco and Lake San Antonio- 820 AM PST Thu Feb 26 2026 ...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL 11 AM PST THIS MORNING... * WHAT...Visibility one quarter mile or less in dense fog. * WHERE...Southern Salinas Valley/Arroyo Seco and Lake San Antonio. * WHEN...Until 11 AM PST this morning. * IMPACTS...Low visibility could make driving conditions hazardous. PRECAUTIONARY/PREPAREDNESS ACTIONS... If driving, slow down, use your headlights, and leave plenty of distance ahead of you. && $$ RGass Action: Cancelled Issued At: 2026-02-26 10:21:14 730 WWUS76 KMTR 261620 NPWMTR URGENT - WEATHER MESSAGE National Weather Service San Francisco CA 820 AM PST Thu Feb 26 2026 CAZ528-261730- /O.CAN.KMTR.FG.Y.0003.000000T0000Z-260226T1900Z/ Northern Salinas Valley/Hollister Valley and Carmel Valley- 820 AM PST Thu Feb 26 2026 ...DENSE FOG ADVISORY IS CANCELLED... Dense fog is no longer being observed as visibilities continue to improve. $$ CAZ006-508-510-261900- /O.EXT.KMTR.FG.Y.0003.000000T0000Z-260226T1900Z/ San Francisco-San Francisco Bay Shoreline-East Bay Interior Valleys- 820 AM PST Thu Feb 26 2026 ...DENSE FOG ADVISORY NOW IN EFFECT UNTIL 11 AM PST THIS MORNING... * WHAT...Visibility one quarter mile or less in dense fog. * WHERE...East Bay Interior Valleys, San Francisco, and San Francisco Bay Shoreline. * WHEN...Until 11 AM PST this morning. * IMPACTS...Low visibility could make driving conditions hazardous. PRECAUTIONARY/PREPAREDNESS ACTIONS... If driving, slow down, use your headlights, and leave plenty of distance ahead of you. Patchy dense fog will result in sudden changes in visibility. Visibility at times will fall below one-quarter of a mile. Use your low beam headlights, slow down, and be prepared for periods of hazardous driving conditions. && $$ CAZ506-261900- /O.CON.KMTR.FG.Y.0003.000000T0000Z-260226T1900Z/ North Bay Interior Valleys- 820 AM PST Thu Feb 26 2026 ...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL 11 AM PST THIS MORNING... * WHAT...Visibility one quarter mile or less in dense fog. * WHERE...North Bay Interior Valleys. * WHEN...Until 11 AM PST this morning. * IMPACTS...Low visibility could make driving conditions hazardous. PRECAUTIONARY/PREPAREDNESS ACTIONS... If driving, slow down, use your headlights, and leave plenty of distance ahead of you. && $$ CAZ516-261900- /O.CON.KMTR.FG.Y.0003.000000T0000Z-260226T1900Z/ Southern Salinas Valley/Arroyo Seco and Lake San Antonio- 820 AM PST Thu Feb 26 2026 ...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL 11 AM PST THIS MORNING... * WHAT...Visibility one quarter mile or less in dense fog. * WHERE...Southern Salinas Valley/Arroyo Seco and Lake San Antonio. * WHEN...Until 11 AM PST this morning. * IMPACTS...Low visibility could make driving conditions hazardous. PRECAUTIONARY/PREPAREDNESS ACTIONS... If driving, slow down, use your headlights, and leave plenty of distance ahead of you. && $$ RGass Action: Expired Issued At: 2026-02-26 12:34:48 232 WWUS76 KMTR 261834 NPWMTR URGENT - WEATHER MESSAGE National Weather Service San Francisco CA 1034 AM PST Thu Feb 26 2026 CAZ006-506-508-510-516-261945- /O.EXP.KMTR.FG.Y.0003.000000T0000Z-260226T1900Z/ San Francisco-North Bay Interior Valleys-San Francisco Bay Shoreline-East Bay Interior Valleys-Southern Salinas Valley/Arroyo Seco and Lake San Antonio- 1034 AM PST Thu Feb 26 2026 ...DENSE FOG ADVISORY WILL EXPIRE AT 11 AM PST THIS MORNING... Visibilities continue to improve across the region. Thus, the Dense Fog Advisory will expire at 11 AM PST. $$ RGass | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||