Alerts from NWS San Francisco CA (UNOFFICIAL)
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sfo.nws-bot.us
Alerts from NWS San Francisco CA (UNOFFICIAL)
@sfo.nws-bot.us
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Unofficial bot sharing alerts from NWS San Francisco CA.

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sfo.nws-bot.us
Dense Fog Advisory issued November 26 at 9:04PM PST until November 27 at 10:00AM PST by NWS San Francisco CA
Additional Details Here.
* WHAT...Visibility one quarter mile or less in dense fog. * WHERE...East Bay Interior Valleys. * WHEN...Until 10 AM PST Thursday. * IMPACTS...Hazardous driving conditions due to low visibility.
November 27, 2025 at 5:15 AM
sfo.nws-bot.us
Dense Fog Advisory issued November 26 at 9:03PM PST until November 27 at 10:00AM PST by NWS San Francisco CA
Additional Details Here.(2/2)
* WHAT...North winds 15 to 20 kt with gusts to 25 kt expected. * WHERE...Waters from Point Pinos to Point Piedras Blancas 10- 60 NM. * WHEN...From 3 PM Thursday to 9 AM PST Friday. * IMPACTS...Conditions will be hazardous to small craft. * WHAT...Northwest winds 10 to 20 kt with gusts to 25 kt expected. * WHERE...Coastal Waters from Point Pinos to Point Piedras Blancas California out to 10 NM. * WHEN...From 9 PM Thursday to 9 AM PST Friday. * IMPACTS...Conditions will be hazardous to small craft.
November 27, 2025 at 5:15 AM
sfo.nws-bot.us
Dense Fog Advisory issued November 26 at 9:03PM PST until November 27 at 10:00AM PST by NWS San Francisco CA
Additional Details Here.
(1/2)
* WHAT...Dense fog will reduce visibility to 1/4 to 1/2 NM. * WHERE...San Pablo Bay, Suisun Bay, the West Delta and the San Francisco Bay north of the Bay Bridge. * WHEN...Until 10 AM PST Thursday. * IMPACTS...Low visibility will make navigation difficult. * ADDITIONAL DETAILS...Worst conditions expected in the Delta. * WHAT...Northwest winds 10 to 20 kt with gusts to 25 kt expected. * WHERE...Waters from Point Arena to Point Reyes 10-60 NM. * WHEN...From 3 PM Thursday to 9 AM PST Friday. * IMPACTS...Conditions will be hazardous to small craft. * WHAT...Northwest winds 15 to 20 kt with gusts to 25 kt expected. * WHERE...Waters from Point Reyes to Pigeon Point 10-60 NM. * WHEN...From 3 PM Thursday to 9 AM PST Friday. * IMPACTS...Conditions will be hazardous to small craft. * WHAT...North winds 15 to 20 kt with gusts to 25 kt expected. * WHERE...Waters from Pigeon Point to Point Pinos 10-60 NM. * WHEN...From 3 PM Thursday to 9 AM PST Friday. * IMPACTS...Conditions will be hazardous to small craft.
November 27, 2025 at 5:15 AM
sfo.nws-bot.us
Small Craft Advisory issued November 26 at 8:31PM PST until November 28 at 9:00AM PST by NWS San Francisco CA
Additional Details Here.(2/2)
* WHAT...Northwest winds 10 to 20 kt with gusts to 25 kt expected. * WHERE...Coastal Waters from Point Pinos to Point Piedras Blancas California out to 10 NM. * WHEN...From 9 PM Thursday to 9 AM PST Friday. * IMPACTS...Conditions will be hazardous to small craft.
November 27, 2025 at 4:45 AM
sfo.nws-bot.us
Small Craft Advisory issued November 26 at 8:31PM PST until November 28 at 9:00AM PST by NWS San Francisco CA
Additional Details Here.
(1/2)
* WHAT...Northwest winds 10 to 20 kt with gusts to 25 kt expected. * WHERE...Waters from Point Arena to Point Reyes 10-60 NM. * WHEN...From 3 PM Thursday to 9 AM PST Friday. * IMPACTS...Conditions will be hazardous to small craft. * WHAT...Northwest winds 15 to 20 kt with gusts to 25 kt expected. * WHERE...Waters from Point Reyes to Pigeon Point 10-60 NM. * WHEN...From 3 PM Thursday to 9 AM PST Friday. * IMPACTS...Conditions will be hazardous to small craft. * WHAT...North winds 15 to 20 kt with gusts to 25 kt expected. * WHERE...Waters from Pigeon Point to Point Pinos 10-60 NM. * WHEN...From 3 PM Thursday to 9 AM PST Friday. * IMPACTS...Conditions will be hazardous to small craft. * WHAT...North winds 15 to 20 kt with gusts to 25 kt expected. * WHERE...Waters from Point Pinos to Point Piedras Blancas 10- 60 NM. * WHEN...From 3 PM Thursday to 9 AM PST Friday. * IMPACTS...Conditions will be hazardous to small craft.
November 27, 2025 at 4:45 AM
sfo.nws-bot.us
Small Craft Advisory issued November 26 at 2:14PM PST until November 28 at 9:00AM PST by NWS San Francisco CA
Additional Details Here.(2/2)
* WHAT...North winds 15 to 20 kt expected. * WHERE...Waters from Point Pinos to Point Piedras Blancas 10- 60 NM. * WHEN...From 3 PM Thursday to 9 AM PST Friday. * IMPACTS...Conditions will be hazardous to small craft.
November 26, 2025 at 10:30 PM
sfo.nws-bot.us
Small Craft Advisory issued November 26 at 2:14PM PST until November 28 at 9:00AM PST by NWS San Francisco CA
Additional Details Here.
(1/2)
* WHAT...Northwest winds 15 to 25 kt expected. * WHERE...Coastal Waters from Point Pinos to Point Piedras Blancas California out to 10 NM. * WHEN...From 9 PM Thursday to 9 AM PST Friday. * IMPACTS...Conditions will be hazardous to small craft. * WHAT...Northwest winds 10 to 20 kt expected. * WHERE...Waters from Point Arena to Point Reyes 10-60 NM. * WHEN...From 3 PM Thursday to 9 AM PST Friday. * IMPACTS...Conditions will be hazardous to small craft. * WHAT...Northwest winds 15 to 20 kt expected. * WHERE...Waters from Point Reyes to Pigeon Point 10-60 NM. * WHEN...From 3 PM Thursday to 9 AM PST Friday. * IMPACTS...Conditions will be hazardous to small craft. * WHAT...North winds 15 to 20 kt expected. * WHERE...Waters from Pigeon Point to Point Pinos 10-60 NM. * WHEN...From 3 PM Thursday to 9 AM PST Friday. * IMPACTS...Conditions will be hazardous to small craft.
November 26, 2025 at 10:30 PM
sfo.nws-bot.us
Small Craft Advisory issued November 26 at 7:26AM PST until November 28 at 9:00AM PST by NWS San Francisco CA
Additional Details Here.(1/2)
* WHAT...Northwest winds 10 to 20 kt and seas 8 to 10 ft expected. * WHERE...Waters from Point Arena to Point Reyes 10-60 NM. * WHEN...From 3 PM Thursday to 9 AM PST Friday. * IMPACTS...Conditions will be hazardous to small craft. * WHAT...Northwest winds 15 to 20 kt and seas 8 to 10 ft expected. * WHERE...Waters from Point Reyes to Pigeon Point 10-60 NM. * WHEN...From 3 PM Thursday to 9 AM PST Friday. * IMPACTS...Conditions will be hazardous to small craft. * WHAT...North winds 15 to 20 kt expected. * WHERE...Waters from Pigeon Point to Point Pinos 10-60 NM. * WHEN...From 3 PM Thursday to 9 AM PST Friday. * IMPACTS...Conditions will be hazardous to small craft. * WHAT...North winds 15 to 20 kt expected. * WHERE...Waters from Point Pinos to Point Piedras Blancas 10- 60 NM. * WHEN...From 3 PM Thursday to 9 AM PST Friday. * IMPACTS...Conditions will be hazardous to small craft.
November 26, 2025 at 3:30 PM
sfo.nws-bot.us
Dense Fog Advisory issued November 26 at 5:38AM PST until November 26 at 11:00AM PST by NWS San Francisco CA
Additional Details Here.
* WHAT...Visibility one quarter mile or less in dense fog. * WHERE...The Marin Hills, North Bay Interior Mountains, Coastal North Bay Including Point Reyes National Seashore, and North Bay Interior Valleys. * WHEN...Until 11 AM PST this morning. * IMPACTS...Low visibility could make driving conditions hazardous. Limited visibility will result in hazardous driving conditions. * WHAT...Visibility one quarter mile or less in dense fog. * WHERE...East Bay Interior Valleys. * WHEN...Until 11 AM PST this morning. * IMPACTS...Low visibility could make driving conditions hazardous. Limited visibility will result in hazardous driving conditions.
November 26, 2025 at 1:45 PM
sfo.nws-bot.us
Small Craft Advisory issued November 26 at 2:22AM PST until November 28 at 9:00AM PST by NWS San Francisco CA
Additional Details Here.(2/2)
* WHAT...Dense fog will reduce visibility to 1/4 NM or less. * WHERE...San Pablo Bay, Suisun Bay, the West Delta and the San Francisco Bay north of the Bay Bridge. * WHEN...Until 11 AM PST this morning. * IMPACTS...Low visibility will make navigation difficult. * ADDITIONAL DETAILS...The greatest impacts are expected in the San Pablo Bay through the West Delta.
November 26, 2025 at 10:30 AM
sfo.nws-bot.us
Small Craft Advisory issued November 26 at 2:22AM PST until November 28 at 9:00AM PST by NWS San Francisco CA
Additional Details Here.
(1/2)
* WHAT...Northwest winds 10 to 20 kt and seas 8 to 10 ft expected. * WHERE...Waters from Point Arena to Point Reyes 10-60 NM. * WHEN...From 3 PM Thursday to 9 AM PST Friday. * IMPACTS...Conditions will be hazardous to small craft. * WHAT...Northwest winds 15 to 20 kt and seas 8 to 10 ft expected. * WHERE...Waters from Point Reyes to Pigeon Point 10-60 NM. * WHEN...From 3 PM Thursday to 9 AM PST Friday. * IMPACTS...Conditions will be hazardous to small craft. * WHAT...North winds 15 to 20 kt expected. * WHERE...Waters from Pigeon Point to Point Pinos 10-60 NM. * WHEN...From 3 PM Thursday to 9 AM PST Friday. * IMPACTS...Conditions will be hazardous to small craft. * WHAT...North winds 15 to 20 kt expected. * WHERE...Waters from Point Pinos to Point Piedras Blancas 10- 60 NM. * WHEN...From 3 PM Thursday to 9 AM PST Friday. * IMPACTS...Conditions will be hazardous to small craft.
November 26, 2025 at 10:30 AM
sfo.nws-bot.us
Dense Fog Advisory issued November 25 at 10:12PM PST until November 26 at 11:00AM PST by NWS San Francisco CA
Additional Details Here.
* WHAT...Dense fog will reduce visibility to 1/4 NM or less. * WHERE...San Pablo Bay, Suisun Bay, the West Delta and the San Francisco Bay north of the Bay Bridge. * WHEN...Until 11 AM PST Wednesday. * IMPACTS...Low visibility will make navigation difficult. * ADDITIONAL DETAILS...The greatest impacts are expected in the San Pablo Bay through the West Delta.
November 26, 2025 at 6:15 AM
sfo.nws-bot.us
Dense Fog Advisory issued November 25 at 9:56PM PST until November 26 at 11:00AM PST by NWS San Francisco CA
Additional Details Here.
* WHAT...Visibility one quarter mile or less in dense fog. * WHERE...The Marin Hills, North Bay Interior Mountains, Coastal North Bay Including Point Reyes National Seashore, and North Bay Interior Valleys. * WHEN...Until 11 AM PST Wednesday. * IMPACTS...Low visibility could make driving conditions hazardous. Limited visibility will result in hazardous driving conditions. * WHAT...Visibility one quarter mile or less in dense fog. * WHERE...East Bay Interior Valleys. * WHEN...Until 11 AM PST Wednesday. * IMPACTS...Low visibility could make driving conditions hazardous. Limited visibility will result in hazardous driving conditions.
November 26, 2025 at 6:00 AM
sfo.nws-bot.us
Dense Fog Advisory issued November 25 at 10:38AM PST until November 25 at 11:00AM PST by NWS San Francisco CA
Additional Details Here.
Visibilities continue to improve over much of the region. Thus, the Dense Fog Advisory will be allowed to expire at 11 AM PST.
November 25, 2025 at 6:45 PM
sfo.nws-bot.us
Beach Hazards Statement issued November 25 at 9:31AM PST until November 25 at 10:00AM PST by NWS San Francisco CA
Additional Details Here.
While conditions have dropped below Beach Hazards Statement criteria, caution should still be exercised when at the beach as always.
November 25, 2025 at 5:45 PM
sfo.nws-bot.us
Dense Fog Advisory issued November 25 at 8:47AM PST until November 25 at 11:00AM PST by NWS San Francisco CA
Additional Details Here.
* 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. Limited visibility will result in hazardous driving conditions. * 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.
November 25, 2025 at 5:00 PM
sfo.nws-bot.us
Dense Fog Advisory issued November 25 at 5:15AM PST until November 25 at 11:00AM PST by NWS San Francisco CA
Additional Details Here.
* 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. * 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. Limited visibility will result in hazardous driving conditions. * 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. Limited visibility will result in hazardous driving conditions.
November 25, 2025 at 1:30 PM
sfo.nws-bot.us
Beach Hazards Statement issued November 25 at 4:58AM PST until November 25 at 10:00AM PST by NWS San Francisco CA
Additional Details Here.
* WHAT...A long period northwesterly swell will result in an increased risk for sneaker waves and rip currents. Breaking waves of 13 to 18 feet are expected. * WHERE...Pacific Coast beaches. * WHEN...Until 10 AM PST this morning. * IMPACTS...Sneaker waves can unexpectedly run significantly farther up the beach than normal, including over rocks and jetties. Rip currents are typically more frequent and stronger in the vicinity of jetties, inlets, and piers.
November 25, 2025 at 1:00 PM
sfo.nws-bot.us
Dense Fog Advisory issued November 25 at 3:38AM PST until November 25 at 11:00AM PST by NWS San Francisco CA
Additional Details Here.
* WHAT...Visibility one quarter mile or less in patchy dense fog. * WHERE...San Francisco and San Francisco Bay Shoreline. * WHEN...Until 11 AM PST this morning. * IMPACTS...Low visibility could make driving conditions hazardous. Limited visibility will result in hazardous driving conditions. * 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. Limited visibility will result in hazardous driving conditions. * WHAT...Visibility one quarter mile or less in dense fog. * WHERE...East Bay Interior Valleys. * WHEN...Until 11 AM PST this morning. * IMPACTS...Low visibility could make driving conditions hazardous. Limited visibility will result in hazardous driving conditions.
November 25, 2025 at 11:45 AM
sfo.nws-bot.us
Small Craft Advisory issued November 25 at 2:31AM PST until November 25 at 3:00AM PST by NWS San Francisco CA
Additional Details Here.(1/2)
* WHAT...For the first Small Craft Advisory, north winds 15 to 20 kt expected. For the second Small Craft Advisory, north winds 10 to 15 kt expected. * WHERE...Waters from Point Pinos to Point Piedras Blancas 10- 60 NM. * WHEN...For the first Small Craft Advisory, from 3 PM this afternoon to 9 PM PST this evening. For the second Small Craft Advisory, from 3 PM to 9 PM PST Wednesday. * IMPACTS...Conditions will be hazardous to small craft. * WHAT...For the first Small Craft Advisory, north winds 15 to 20 kt expected. For the second Small Craft Advisory, north winds 10 to 15 kt expected. * WHERE...Waters from Point Pinos to Point Piedras Blancas 10- 60 NM. * WHEN...For the first Small Craft Advisory, from 3 PM this afternoon to 9 PM PST this evening. For the second Small Craft Advisory, from 3 PM to 9 PM PST Wednesday. * IMPACTS...Conditions will be hazardous to small craft. * WHAT...For the first Small Craft Advisory, north winds 15 to 20 kt expected. For the second Small Craft Advisory, north winds 10 to 15 kt expected. * WHERE...Waters from Point Pinos to Point Piedras Blancas 10- 60 NM. * WHEN...For the first Small Craft Advisory, from 3 PM this afternoon to 9 PM PST this evening. For the second Small Craft Advisory, from 3 PM to 9 PM PST Wednesday. * IMPACTS...Conditions will be hazardous to small craft. * WHAT...Dense fog will reduce visibility to 1/4 NM or less. * WHERE...San Pablo Bay, Suisun Bay, the West Delta and the San Francisco Bay. * WHEN...Until 11 AM PST this morning. * IMPACTS...Low visibility will make navigation difficult. * ADDITIONAL DETAILS...The most severe impacts are expected across the San Pablo Bay, the Suisun Bay, and the West Delta.
November 25, 2025 at 10:45 AM
sfo.nws-bot.us
Dense Fog Advisory issued November 25 at 12:53AM PST until November 25 at 11:00AM PST by NWS San Francisco CA
Additional Details Here.
* WHAT...Dense fog will reduce visibility to 1 to 2 NM. * WHERE...San Pablo Bay, Suisun Bay, the West Delta and the San Francisco Bay. * WHEN...Until 11 AM PST this morning. * IMPACTS...Low visibility will make navigation difficult. * ADDITIONAL DETAILS...The most severe impacts are expected across the San Pablo Bay, the Suisun Bay, and the West Delta. * WHAT...For the first Small Craft Advisory, north winds 15 to 20 kt. For the second Small Craft Advisory, north winds 15 to 20 kt expected. * WHERE...Waters from Point Pinos to Point Piedras Blancas 10- 60 NM. * WHEN...For the first Small Craft Advisory, until 3 AM PST early this morning. For the second Small Craft Advisory, from 3 PM this afternoon to 9 PM PST this evening. * IMPACTS...Conditions will be hazardous to small craft. * WHAT...For the first Small Craft Advisory, north winds 15 to 20 kt. For the second Small Craft Advisory, north winds 15 to 20 kt expected. * WHERE...Waters from Point Pinos to Point Piedras Blancas 10- 60 NM. * WHEN...For the first Small Craft Advisory, until 3 AM PST early this morning. For the second Small Craft Advisory, from 3 PM this afternoon to 9 PM PST this evening. * IMPACTS...Conditions will be hazardous to small craft.
November 25, 2025 at 9:00 AM
sfo.nws-bot.us
Dense Fog Advisory issued November 25 at 12:52AM PST until November 25 at 11:00AM PST by NWS San Francisco CA
Additional Details Here.
* WHAT...Visibility one quarter mile or less in dense fog. * WHERE...East Bay Interior Valleys. * WHEN...Until 11 AM PST this morning. * IMPACTS...Low visibility could make driving conditions hazardous. Limited visibility will result in hazardous driving conditions. * 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. Limited visibility will result in hazardous driving conditions.
November 25, 2025 at 9:00 AM
sfo.nws-bot.us
Dense Fog Advisory issued November 24 at 10:03PM PST until November 25 at 11:00AM PST by NWS San Francisco CA
Additional Details Here.
* WHAT...Visibility one quarter mile or less in dense fog. * WHERE...North Bay Interior Valleys. * WHEN...Until 11 AM PST Tuesday. * IMPACTS...Low visibility could make driving conditions hazardous. Limited visibility will result in hazardous driving conditions.
November 25, 2025 at 6:15 AM
sfo.nws-bot.us
Small Craft Advisory issued November 24 at 8:20PM PST until November 25 at 3:00AM PST by NWS San Francisco CA
Additional Details Here.
* WHAT...For the first Small Craft Advisory, north winds 15 to 20 kt. For the second Small Craft Advisory, north winds 15 to 20 kt expected. * WHERE...Waters from Point Pinos to Point Piedras Blancas 10- 60 NM. * WHEN...For the first Small Craft Advisory, until 3 AM PST Tuesday. For the second Small Craft Advisory, from 3 PM to 9 PM PST Tuesday. * IMPACTS...Conditions will be hazardous to small craft. * WHAT...For the first Small Craft Advisory, north winds 15 to 20 kt. For the second Small Craft Advisory, north winds 15 to 20 kt expected. * WHERE...Waters from Point Pinos to Point Piedras Blancas 10- 60 NM. * WHEN...For the first Small Craft Advisory, until 3 AM PST Tuesday. For the second Small Craft Advisory, from 3 PM to 9 PM PST Tuesday. * IMPACTS...Conditions will be hazardous to small craft.
November 25, 2025 at 4:30 AM
sfo.nws-bot.us
Beach Hazards Statement issued November 24 at 7:34PM PST until November 25 at 10:00AM PST by NWS San Francisco CA
Additional Details Here.
* WHAT...A long period northwesterly swell will result in an increased risk for sneaker waves and rip currents. Breaking waves of 13 to 18 feet are expected. * WHERE...Pacific Coast beaches. * WHEN...Through 10 AM PST Tuesday morning. * IMPACTS...Sneaker waves can unexpectedly run significantly farther up the beach than normal, including over rocks and jetties. Rip currents are typically more frequent and stronger in the vicinity of jetties, inlets, and piers.
November 25, 2025 at 3:45 AM