Alert archive / California / Storm Warnings in 2023
Storm Warning 2, NWS San Francisco Bay Area, CA
NWS San Francisco Bay Area, CA issued this storm warning at Mar 21, 2023, 12:27 AM PDT. It took effect at Mar 21, 2023, 3:00 AM PDT. It was in force for 6 hr. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Mar 21, 2023, 12:27 AM PDT (07:27 UTC)
- In effect from
- Mar 21, 2023, 3:00 AM PDT
- Expired
- Mar 21, 2023, 9:00 AM PDT
- In force
- 6 hr
- Issued by
- NWS San Francisco Bay Area, CA
The text
As transmitted.
118 WHUS76 KMTR 210727 MWWMTR URGENT - MARINE WEATHER MESSAGE National Weather Service San Francisco Bay Area 1227 AM PDT Tue Mar 21 2023 PZZ576-211530- /O.CON.KMTR.SC.Y.0054.000000T0000Z-230321T1000Z/ /O.NEW.KMTR.SR.W.0002.230321T1000Z-230321T1600Z/ /O.EXT.KMTR.GL.W.0021.230321T1600Z-230322T0400Z/ Waters from Point Pinos to Point Piedras Blancas 10-60 NM- 1227 AM PDT Tue Mar 21 2023 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 3 AM PDT EARLY THIS MORNING... ...STORM WARNING IN EFFECT UNTIL 9 AM PDT THIS MORNING... ...GALE WARNING NOW IN EFFECT FROM 9 AM THIS MORNING TO 9 PM PDT THIS EVENING... * WHAT...For the Small Craft Advisory, southeast winds 10 to 20 kt with gusts up to 25 kt. For the Storm Warning, southeast winds 25 to 35 kt with gusts up to 55 kt expected. For the Gale Warning, southwest winds 35 to 45 kt with gusts up to 55 kt and seas 10 to 12 ft expected. * WHERE...Waters from Point Pinos to Point Piedras Blancas 10- 60 NM. * WHEN...For the Small Craft Advisory, until 3 AM PDT early this morning. For the Storm Warning, until 9 AM PDT this morning. For the Gale Warning, from 9 AM this morning to 9 PM PDT this evening. * IMPACTS...Very strong winds will cause hazardous seas which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should remain in port, alter course, and/or secure the vessel for severe conditions. && $$ PZZ565-211530- /O.CON.KMTR.SC.Y.0054.000000T0000Z-230321T1000Z/ /O.NEW.KMTR.SR.W.0002.230321T1000Z-230321T1600Z/ /O.EXT.KMTR.GL.W.0021.230321T1600Z-230322T0400Z/ Coastal Waters from Point Pinos to Point Piedras Blancas California out to 10 nm- 1227 AM PDT Tue Mar 21 2023 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 3 AM PDT EARLY THIS MORNING... ...STORM WARNING IN EFFECT UNTIL 9 AM PDT THIS MORNING... ...GALE WARNING NOW IN EFFECT FROM 9 AM THIS MORNING TO 9 PM PDT THIS EVENING... * WHAT...For the Small Craft Advisory, southeast winds 15 to 20 kt with gusts up to 25 kt. For the Storm Warning, southeast winds 30 to 40 kt with gusts up to 60 kt expected. For the Gale Warning, southwest winds 30 to 40 kt with gusts up to 55 kt and seas 9 to 12 ft expected. * WHERE...Coastal Waters from Point Pinos to Point Piedras Blancas California out to 10 nm. * WHEN...For the Small Craft Advisory, until 3 AM PDT early this morning. For the Storm Warning, until 9 AM PDT this morning. For the Gale Warning, from 9 AM this morning to 9 PM PDT this evening. * IMPACTS...Very strong winds will cause hazardous seas which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should remain in port, alter course, and/or secure the vessel for severe conditions. && $$ PZZ575-211530- /O.CON.KMTR.SC.Y.0054.000000T0000Z-230321T1000Z/ /O.CON.KMTR.GL.W.0021.230321T1000Z-230322T0400Z/ Waters from Pigeon Point to Point Pinos 10-60 NM- 1227 AM PDT Tue Mar 21 2023 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 3 AM PDT EARLY THIS MORNING... ...GALE WARNING REMAINS IN EFFECT UNTIL 9 PM PDT THIS EVENING... * WHAT...For the Small Craft Advisory, southeast winds 10 to 20 kt with gusts up to 25 kt. For the Gale Warning, south winds 30 to 40 kt with gusts up to 50 kt and seas 7 to 11 ft expected. * WHERE...Waters from Pigeon Point to Point Pinos 10-60 NM. * WHEN...For the Small Craft Advisory, until 3 AM PDT early this morning. For the Gale Warning, until 9 PM PDT this evening. * IMPACTS...Strong winds will cause hazardous seas which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for severe conditions. && $$ PZZ571-211530- /O.CON.KMTR.GL.W.0021.230321T1000Z-230322T0400Z/ Waters from Point Reyes to Pigeon Point 10-60 NM- 1227 AM PDT Tue Mar 21 2023 ...GALE WARNING REMAINS IN EFFECT UNTIL 9 PM PDT THIS EVENING... * WHAT...Northeast winds 25 to 35 kt with gusts up to 45 kt expected. * WHERE...Waters from Point Reyes to Pigeon Point 10-60 NM. * WHEN...Until 9 PM PDT this evening. * IMPACTS...Strong winds will cause hazardous seas which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for severe conditions. && $$ PZZ560-211530- /O.CON.KMTR.GL.W.0021.230321T1000Z-230322T0400Z/ Coastal Waters from Pigeon Point to Point Pinos California out to 10 nm- 1227 AM PDT Tue Mar 21 2023 ...GALE WARNING REMAINS IN EFFECT UNTIL 9 PM PDT THIS EVENING... * WHAT...South winds 35 to 45 kt with gusts up to 55 kt and seas 7 to 12 ft expected. * WHERE...Coastal Waters from Pigeon Point to Point Pinos California out to 10 nm. * WHEN...Until 9 PM PDT this evening. * IMPACTS...Strong winds will cause hazardous seas which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for severe conditions. && $$ PZZ535-211530- /O.CON.KMTR.GL.W.0021.230321T1000Z-230322T0400Z/ Monterey Bay- 1227 AM PDT Tue Mar 21 2023 ...GALE WARNING REMAINS IN EFFECT UNTIL 9 PM PDT THIS EVENING... * WHAT...South winds 30 to 40 kt with gusts up to 55 kt and seas 8 to 10 ft expected. * WHERE...Monterey Bay. * WHEN...Until 9 PM PDT this evening. * IMPACTS...Strong winds will cause hazardous seas which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for severe conditions. && $$ PZZ570-211530- /O.CON.KMTR.SC.Y.0054.230321T1000Z-230322T1000Z/ Waters from Point Arena to Point Reyes 10-60 NM- 1227 AM PDT Tue Mar 21 2023 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 3 AM PDT WEDNESDAY... * WHAT...North winds 20 to 30 kt with gusts up to 40 kt expected. * WHERE...Waters from Point Arena to Point Reyes 10-60 NM. * WHEN...Until 3 AM PDT Wednesday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ PZZ540-211530- /O.CON.KMTR.SC.Y.0054.230321T1000Z-230322T0400Z/ Coastal Waters from Point Arena to Point Reyes California out to 10 nm- 1227 AM PDT Tue Mar 21 2023 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 9 PM PDT THIS EVENING... * WHAT...Northeast winds 15 to 25 kt with gusts up to 40 kt expected. * WHERE...Coastal Waters from Point Arena to Point Reyes California out to 10 nm. * WHEN...Until 9 PM PDT this evening. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ PZZ545-211530- /O.CON.KMTR.SC.Y.0054.230321T1000Z-230322T0400Z/ Coastal Waters from Point Reyes to Pigeon Point California out to 10 nm- 1227 AM PDT Tue Mar 21 2023 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 9 PM PDT THIS EVENING... * WHAT...East winds 20 to 30 kt with gusts up to 50 kt expected, resulting in hazardous conditions near harbor entrances. * WHERE...Coastal Waters from Point Reyes to Pigeon Point California out to 10 nm. * WHEN...Until 9 PM PDT this evening. * IMPACTS...Conditions will be hazardous to small craft especially when navigating in or near harbor entrances. PRECAUTIONARY/PREPAREDNESS ACTIONS... Small craft should use extreme caution when navigating in or near harbor entrances. && $$ PZZ530-211530- /O.CON.KMTR.SC.Y.0054.230321T1000Z-230322T0400Z/ San Pablo Bay, Suisun Bay, the West Delta and the San Francisco Bay north of the Bay Bridge- 1227 AM PDT Tue Mar 21 2023 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 9 PM PDT THIS EVENING... * WHAT...East winds 20 to 30 kt with gusts up to 40 kt and very rough waters expected. * WHERE...San Pablo Bay, Suisun Bay, the West Delta and the San Francisco Bay north of the Bay Bridge. * WHEN...Until 9 PM PDT this evening. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ PZZ531-211530- /O.CON.KMTR.SC.Y.0054.230321T1000Z-230322T0400Z/ San Francisco Bay South of the Bay Bridge- 1227 AM PDT Tue Mar 21 2023 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 9 PM PDT THIS EVENING... * WHAT...Southeast winds 25 to 35 kt with gusts up to 45 kt and extremely rough waters expected. * WHERE...San Francisco Bay South of the Bay Bridge. * WHEN...Until 9 PM PDT this evening. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ For more information from the National Weather Service visit http://weather.gov/sanfrancisco
2 follow-up statements
286 WHUS76 KMTR 210938 MWWMTR URGENT - MARINE WEATHER MESSAGE National Weather Service San Francisco Bay Area 238 AM PDT Tue Mar 21 2023 PZZ576-211745- /O.EXP.KMTR.SC.Y.0054.000000T0000Z-230321T1000Z/ /O.CON.KMTR.SR.W.0002.230321T1000Z-230321T1600Z/ /O.EXT.KMTR.GL.W.0021.230321T1600Z-230323T0400Z/ Waters from Point Pinos to Point Piedras Blancas 10-60 NM- 238 AM PDT Tue Mar 21 2023 ...STORM WARNING REMAINS IN EFFECT UNTIL 9 AM PDT THIS MORNING... ...GALE WARNING NOW IN EFFECT FROM 9 AM THIS MORNING TO 9 PM PDT WEDNESDAY... * WHAT...For the Storm Warning, southeast winds 25 to 35 kt with gusts up to 60 kt expected. For the Gale Warning, west winds 35 to 45 kt with gusts up to 55 kt and seas 9 to 14 ft expected. * WHERE...Waters from Point Pinos to Point Piedras Blancas 10- 60 NM. * WHEN...For the Storm Warning, until 9 AM PDT this morning. For the Gale Warning, from 9 AM this morning to 9 PM PDT Wednesday. * IMPACTS...Very strong winds will cause hazardous seas which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should remain in port, alter course, and/or secure the vessel for severe conditions. && $$ PZZ565-211745- /O.EXP.KMTR.SC.Y.0054.000000T0000Z-230321T1000Z/ /O.CON.KMTR.SR.W.0002.230321T1000Z-230321T1600Z/ /O.EXT.KMTR.GL.W.0021.230321T1600Z-230323T0400Z/ Coastal Waters from Point Pinos to Point Piedras Blancas California out to 10 nm- 238 AM PDT Tue Mar 21 2023 ...STORM WARNING REMAINS IN EFFECT UNTIL 9 AM PDT THIS MORNING... ...GALE WARNING NOW IN EFFECT FROM 9 AM THIS MORNING TO 9 PM PDT WEDNESDAY... * WHAT...For the Storm Warning, southeast winds 30 to 40 kt with gusts up to 60 kt expected. For the Gale Warning, west winds 30 to 40 kt with gusts up to 55 kt and seas 8 to 13 ft expected. * WHERE...Coastal Waters from Point Pinos to Point Piedras Blancas California out to 10 nm. * WHEN...For the Storm Warning, until 9 AM PDT this morning. For the Gale Warning, from 9 AM this morning to 9 PM PDT Wednesday. * IMPACTS...Very strong winds will cause hazardous seas which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should remain in port, alter course, and/or secure the vessel for severe conditions. && $$ PZZ575-211745- /O.EXP.KMTR.SC.Y.0054.000000T0000Z-230321T1000Z/ /O.EXT.KMTR.GL.W.0021.230321T1000Z-230323T0400Z/ Waters from Pigeon Point to Point Pinos 10-60 NM- 238 AM PDT Tue Mar 21 2023 ...GALE WARNING NOW IN EFFECT UNTIL 9 PM PDT WEDNESDAY... ...SMALL CRAFT ADVISORY WILL EXPIRE AT 3 AM PDT EARLY THIS MORNING... * WHAT...West winds 30 to 40 kt with gusts up to 50 kt and seas 9 to 14 ft expected. * WHERE...Waters from Pigeon Point to Point Pinos 10-60 NM. * WHEN...Until 9 PM PDT Wednesday. * IMPACTS...Strong winds will cause hazardous seas which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for severe conditions. && $$ PZZ570-211745- /O.EXT.KMTR.SC.Y.0054.230321T1000Z-230322T0400Z/ /O.EXB.KMTR.GL.W.0021.230322T0400Z-230323T0400Z/ Waters from Point Arena to Point Reyes 10-60 NM- 238 AM PDT Tue Mar 21 2023 ...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 9 PM PDT THIS EVENING... ...GALE WARNING IN EFFECT FROM 9 PM THIS EVENING TO 9 PM PDT WEDNESDAY... * WHAT...For the Small Craft Advisory, northeast winds 20 to 30 kt with gusts up to 40 kt expected. For the Gale Warning, northwest winds 20 to 30 kt with gusts up to 40 kt and seas 10 to 15 ft expected. * WHERE...Waters from Point Arena to Point Reyes 10-60 NM. * WHEN...For the Small Craft Advisory, until 9 PM PDT this evening. For the Gale Warning, from 9 PM this evening to 9 PM PDT Wednesday. * IMPACTS...Strong winds will cause hazardous seas which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for severe conditions. && $$ PZZ531-211745- /O.EXT.KMTR.SC.Y.0054.230321T1000Z-230321T1600Z/ /O.EXA.KMTR.GL.W.0021.230321T1600Z-230322T0400Z/ San Francisco Bay South of the Bay Bridge- 238 AM PDT Tue Mar 21 2023 ...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 9 AM PDT THIS MORNING... ...GALE WARNING IN EFFECT FROM 9 AM THIS MORNING TO 9 PM PDT THIS EVENING... * WHAT...For the Small Craft Advisory, east winds 10 to 20 kt with gusts up to 30 kt and rough waters expected. For the Gale Warning, southeast winds 25 to 35 kt with gusts up to 45 kt and extremely rough waters expected. * WHERE...San Francisco Bay South of the Bay Bridge. * WHEN...For the Small Craft Advisory, until 9 AM PDT this morning. For the Gale Warning, from 9 AM this morning to 9 PM PDT this evening. * IMPACTS...Strong winds will cause hazardous seas which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for severe conditions. && $$ PZZ571-211745- /O.EXT.KMTR.GL.W.0021.230321T1000Z-230323T0400Z/ Waters from Point Reyes to Pigeon Point 10-60 NM- 238 AM PDT Tue Mar 21 2023 ...GALE WARNING NOW IN EFFECT UNTIL 9 PM PDT WEDNESDAY... * WHAT...North winds 25 to 35 kt with gusts up to 45 kt and seas 8 to 13 ft expected. * WHERE...Waters from Point Reyes to Pigeon Point 10-60 NM. * WHEN...Until 9 PM PDT Wednesday. * IMPACTS...Strong winds will cause hazardous seas which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for severe conditions. && $$ PZZ560-211745- /O.EXT.KMTR.GL.W.0021.230321T1000Z-230322T1000Z/ Coastal Waters from Pigeon Point to Point Pinos California out to 10 nm- 238 AM PDT Tue Mar 21 2023 ...GALE WARNING NOW IN EFFECT UNTIL 3 AM PDT WEDNESDAY... * WHAT...South winds 35 to 45 kt with gusts up to 55 kt and seas 7 to 12 ft expected. * WHERE...Coastal Waters from Pigeon Point to Point Pinos California out to 10 nm. * WHEN...Until 3 AM PDT Wednesday. * IMPACTS...Strong winds will cause hazardous seas which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for severe conditions. && $$ PZZ535-211745- /O.EXT.KMTR.GL.W.0021.230321T1000Z-230322T1000Z/ Monterey Bay- 238 AM PDT Tue Mar 21 2023 ...GALE WARNING NOW IN EFFECT UNTIL 3 AM PDT WEDNESDAY... * WHAT...South winds 30 to 40 kt with gusts up to 55 kt and seas 8 to 10 ft expected. * WHERE...Monterey Bay. * WHEN...Until 3 AM PDT Wednesday. * IMPACTS...Strong winds will cause hazardous seas which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for severe conditions. && $$ PZZ540-211745- /O.EXT.KMTR.SC.Y.0054.230321T1000Z-230323T1000Z/ Coastal Waters from Point Arena to Point Reyes California out to 10 nm- 238 AM PDT Tue Mar 21 2023 ...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 3 AM PDT THURSDAY... * WHAT...North winds 15 to 25 kt with gusts up to 40 kt and seas 6 to 11 ft expected. * WHERE...Coastal Waters from Point Arena to Point Reyes California out to 10 nm. * WHEN...Until 3 AM PDT Thursday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ PZZ545-211745- /O.EXT.KMTR.SC.Y.0054.230321T1000Z-230323T1000Z/ Coastal Waters from Point Reyes to Pigeon Point California out to 10 nm- 238 AM PDT Tue Mar 21 2023 ...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 3 AM PDT THURSDAY... * WHAT...Northwest winds 20 to 30 kt with gusts up to 50 kt and seas 8 to 10 ft expected, resulting in hazardous conditions near harbor entrances. * WHERE...Coastal Waters from Point Reyes to Pigeon Point California out to 10 nm. * WHEN...Until 3 AM PDT Thursday. * IMPACTS...Conditions will be hazardous to small craft especially when navigating in or near harbor entrances. PRECAUTIONARY/PREPAREDNESS ACTIONS... Small craft should use extreme caution when navigating in or near harbor entrances. && $$ PZZ530-211745- /O.CON.KMTR.SC.Y.0054.230321T1000Z-230322T0400Z/ San Pablo Bay, Suisun Bay, the West Delta and the San Francisco Bay north of the Bay Bridge- 238 AM PDT Tue Mar 21 2023 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 9 PM PDT THIS EVENING... * WHAT...East winds 20 to 30 kt with gusts up to 40 kt and very rough waters expected. * WHERE...San Pablo Bay, Suisun Bay, the West Delta and the San Francisco Bay north of the Bay Bridge. * WHEN...Until 9 PM PDT this evening. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ For more information from the National Weather Service visit http://weather.gov/sanfrancisco
654 WHUS76 KMTR 211531 MWWMTR URGENT - MARINE WEATHER MESSAGE National Weather Service San Francisco Bay Area 831 AM PDT Tue Mar 21 2023 PZZ576-212345- /O.CON.KMTR.SR.W.0002.000000T0000Z-230321T1600Z/ /O.CON.KMTR.GL.W.0021.230321T1600Z-230323T0400Z/ Waters from Point Pinos to Point Piedras Blancas 10-60 NM- 831 AM PDT Tue Mar 21 2023 ...STORM WARNING REMAINS IN EFFECT UNTIL 9 AM PDT THIS MORNING... ...GALE WARNING REMAINS IN EFFECT UNTIL 9 PM PDT WEDNESDAY... * WHAT...For the Storm Warning, south winds 25 to 35 kt with gusts up to 50 kt. For the Gale Warning, west winds 35 to 45 kt with gusts up to 55 kt and seas 9 to 14 ft expected. * WHERE...Waters from Point Pinos to Point Piedras Blancas 10- 60 NM. * WHEN...For the Storm Warning, until 9 AM PDT this morning. For the Gale Warning, until 9 PM PDT Wednesday. * IMPACTS...Very strong winds will cause hazardous seas which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should remain in port, alter course, and/or secure the vessel for severe conditions. && $$ PZZ565-212345- /O.CON.KMTR.SR.W.0002.000000T0000Z-230321T1600Z/ /O.CON.KMTR.GL.W.0021.230321T1600Z-230323T0400Z/ Coastal Waters from Point Pinos to Point Piedras Blancas California out to 10 nm- 831 AM PDT Tue Mar 21 2023 ...STORM WARNING REMAINS IN EFFECT UNTIL 9 AM PDT THIS MORNING... ...GALE WARNING REMAINS IN EFFECT UNTIL 9 PM PDT WEDNESDAY... * WHAT...For the Storm Warning, south winds 25 to 35 kt with gusts up to 45 kt. For the Gale Warning, west winds 30 to 40 kt with gusts up to 55 kt and seas 8 to 13 ft expected. * WHERE...Coastal Waters from Point Pinos to Point Piedras Blancas California out to 10 nm. * WHEN...For the Storm Warning, until 9 AM PDT this morning. For the Gale Warning, until 9 PM PDT Wednesday. * IMPACTS...Very strong winds will cause hazardous seas which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should remain in port, alter course, and/or secure the vessel for severe conditions. && $$ PZZ570-212345- /O.CON.KMTR.SC.Y.0054.000000T0000Z-230322T0400Z/ /O.CON.KMTR.GL.W.0021.230322T0400Z-230323T0400Z/ Waters from Point Arena to Point Reyes 10-60 NM- 831 AM PDT Tue Mar 21 2023 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 9 PM PDT THIS EVENING... ...GALE WARNING REMAINS IN EFFECT FROM 9 PM THIS EVENING TO 9 PM PDT WEDNESDAY... * WHAT...For the Small Craft Advisory, north winds 20 to 30 kt with gusts up to 40 kt. For the Gale Warning, northwest winds 20 to 30 kt with gusts up to 40 kt and seas 10 to 15 ft expected. * WHERE...Waters from Point Arena to Point Reyes 10-60 NM. * WHEN...For the Small Craft Advisory, until 9 PM PDT this evening. For the Gale Warning, from 9 PM this evening to 9 PM PDT Wednesday. * IMPACTS...Strong winds will cause hazardous seas which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for severe conditions. && $$ PZZ531-212345- /O.CON.KMTR.SC.Y.0054.000000T0000Z-230321T1600Z/ /O.CON.KMTR.GL.W.0021.230321T1600Z-230322T0400Z/ San Francisco Bay South of the Bay Bridge- 831 AM PDT Tue Mar 21 2023 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 9 AM PDT THIS MORNING... ...GALE WARNING REMAINS IN EFFECT UNTIL 9 PM PDT THIS EVENING... * WHAT...For the Small Craft Advisory, east winds around 20 kt with gusts up to 30 kt and rough waters. For the Gale Warning, southeast winds 25 to 35 kt with gusts up to 45 kt and extremely rough waters expected. * WHERE...San Francisco Bay South of the Bay Bridge. * WHEN...For the Small Craft Advisory, until 9 AM PDT this morning. For the Gale Warning, until 9 PM PDT this evening. * IMPACTS...Strong winds will cause hazardous seas which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for severe conditions. && $$ PZZ571-212345- /O.CON.KMTR.GL.W.0021.000000T0000Z-230323T0400Z/ Waters from Point Reyes to Pigeon Point 10-60 NM- 831 AM PDT Tue Mar 21 2023 ...GALE WARNING REMAINS IN EFFECT UNTIL 9 PM PDT WEDNESDAY... * WHAT...Northwest winds 25 to 35 kt with gusts up to 45 kt and seas 8 to 13 ft. * WHERE...Waters from Point Reyes to Pigeon Point 10-60 NM. * WHEN...Until 9 PM PDT Wednesday. * IMPACTS...Strong winds will cause hazardous seas which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for severe conditions. && $$ PZZ575-212345- /O.CON.KMTR.GL.W.0021.000000T0000Z-230323T0400Z/ Waters from Pigeon Point to Point Pinos 10-60 NM- 831 AM PDT Tue Mar 21 2023 ...GALE WARNING REMAINS IN EFFECT UNTIL 9 PM PDT WEDNESDAY... * WHAT...West winds 30 to 40 kt with gusts up to 50 kt and seas 9 to 14 ft. * WHERE...Waters from Pigeon Point to Point Pinos 10-60 NM. * WHEN...Until 9 PM PDT Wednesday. * IMPACTS...Strong winds will cause hazardous seas which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for severe conditions. && $$ PZZ560-212345- /O.CON.KMTR.GL.W.0021.000000T0000Z-230322T1000Z/ Coastal Waters from Pigeon Point to Point Pinos California out to 10 nm- 831 AM PDT Tue Mar 21 2023 ...GALE WARNING REMAINS IN EFFECT UNTIL 3 AM PDT WEDNESDAY... * WHAT...Southwest winds 35 to 45 kt with gusts up to 55 kt and seas 7 to 12 ft. * WHERE...Coastal Waters from Pigeon Point to Point Pinos California out to 10 nm. * WHEN...Until 3 AM PDT Wednesday. * IMPACTS...Strong winds will cause hazardous seas which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for severe conditions. && $$ PZZ535-212345- /O.CON.KMTR.GL.W.0021.000000T0000Z-230322T1000Z/ Monterey Bay- 831 AM PDT Tue Mar 21 2023 ...GALE WARNING REMAINS IN EFFECT UNTIL 3 AM PDT WEDNESDAY... * WHAT...South winds 30 to 40 kt with gusts up to 55 kt and seas 8 to 10 ft. * WHERE...Monterey Bay. * WHEN...Until 3 AM PDT Wednesday. * IMPACTS...Strong winds will cause hazardous seas which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for severe conditions. && $$ PZZ540-212345- /O.CON.KMTR.SC.Y.0054.000000T0000Z-230323T1000Z/ Coastal Waters from Point Arena to Point Reyes California out to 10 nm- 831 AM PDT Tue Mar 21 2023 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 3 AM PDT THURSDAY... * WHAT...North winds 15 to 25 kt with gusts up to 40 kt and seas 6 to 11 ft. * WHERE...Coastal Waters from Point Arena to Point Reyes California out to 10 nm. * WHEN...Until 3 AM PDT Thursday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ PZZ545-212345- /O.CON.KMTR.SC.Y.0054.000000T0000Z-230323T1000Z/ Coastal Waters from Point Reyes to Pigeon Point California out to 10 nm- 831 AM PDT Tue Mar 21 2023 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 3 AM PDT THURSDAY... * WHAT...Northwest winds 20 to 30 kt with gusts up to 50 kt and seas 8 to 10 ft, resulting in hazardous conditions near harbor entrances. * WHERE...Coastal Waters from Point Reyes to Pigeon Point California out to 10 nm. * WHEN...Until 3 AM PDT Thursday. * IMPACTS...Conditions will be hazardous to small craft especially when navigating in or near harbor entrances. PRECAUTIONARY/PREPAREDNESS ACTIONS... Small craft should use extreme caution when navigating in or near harbor entrances. && $$ PZZ530-212345- /O.CON.KMTR.SC.Y.0054.000000T0000Z-230322T0400Z/ San Pablo Bay, Suisun Bay, the West Delta and the San Francisco Bay north of the Bay Bridge- 831 AM PDT Tue Mar 21 2023 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 9 PM PDT THIS EVENING... * WHAT...Southeast winds 20 to 30 kt with gusts up to 40 kt and very rough waters. * WHERE...San Pablo Bay, Suisun Bay, the West Delta and the San Francisco Bay north of the Bay Bridge. * WHEN...Until 9 PM PDT this evening. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ For more information from the National Weather Service visit http://weather.gov/sanfrancisco
What forecasters said that day
The local office's own words before this storm 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 storm warning went out at Mar 20, 10:49 PM PDT, 1 hour 38 minutes earlier.
Area forecast discussion, Mar 20, 10:49 PM PDT, 1 hour 38 minutes before
Area Forecast Discussion
National Weather Service San Francisco Bay Area
1049 PM PDT Mon Mar 20 2023
.SYNOPSIS...High winds and widespread rainfall tomorrow, with High
Wind Warnings out for the Monterey and San benito mountains and Wind
Advisories from the San Francisco Bay Area to the Monterey County
coast. Scattered showers persist into Wednesday and unsettled
pattern continues into next week. Monitoring potential for
unseasonably cold temperatures next weekend, and a new storm system
the beginning of next week.
&&
.DISCUSSION...as of 08:49 PM PDT Monday...A few notable shifts
among high res guidance this evening helps to bring a little more
confidence in the forecast. At this point, it seems likely that
the surface low will move into the coastal region very near the SF
Peninsula. A low coming onshore in this location would still keep
the highest winds to the south of the Bay Area proper, though
with antecedent conditions, still expect impacts due to downed
trees and power lines across the Bay Area. For now, kept the Bay
Area and surrounding coastline under High Wind Advisory, while
upgrading the Big Sur Coast, southern Monterey Bay, and northern
Salinas Valley to be included in the High Wind Warning. Highest
winds in these areas still expected to be along the Big Sur Coast,
Santa Lucia Range, San Benito County, and towards the northern
end of the Salinas Valley including the central Monterey Bay
coastline.
Another noteworthy bit to add...our criteria for bomb
cyclogenesis at this latitude is about 17 millibars in 24 hours.
Current model guidance does suggest this will happen during a
short period Tuesday morning, though impacts remain the same
regardless of if we technically meet this criteria or not.
&&
.PREV DISCUSSION...as of 03:11 PM PDT Monday...A break in the rain for the
rest of today as winds remain light and mainly clear, with highs in
the lower elevations in the mid 50s to low 60s, and into the mid 40s
to low 50s for the higher elevations.
A storm system is approaching California and will impact the SF Bay
Area and Central Coast starting early on Tuesday. While the system
is associated with an atmospheric river approaching the state, the
main moisture tap will be directed to our south in southern
California and Baja California. For our area, winds will be the main
issue, with the most impactful gusts Tuesday morning into the
afternoon. A High Wind Warning is in effect from 7 AM to 9 PM
Tuesday in the mountains of Monterey and San Benito Counties, where
southerly gusts of over 70 mph are expected. Elsewhere, a Wind
Advisory is in effect for the East and South Bay, the San Mateo
Peninsula, and the lower elevations of the Central Coast, also from
7 AM to 9 PM Tuesday, with southerly wind gusts of up to 40-50 mph
are expected, with more intense gusts in the higher elevations. The
North Bay should see gusts of up to 20-25 mph. Much of the
uncertainty in the strength of the wind gusts is in the wider SF Bay
region, as models are still having difficulty on the location of a
surface low that's expected to enhance wind gusts. The global GFS
and European models are bringing the low to a stall off the coast of
the San Mateo Peninsula, while the higher resolution HRRR and NAM
are bringing the low onshore along the Central Coast. We will
continue to closely monitor the surface low and its evolution as the
impact comes closer.
Rainfall will be a secondary impact in our area, although expected
totals are not as high as those in southern California. here too,
the most intense rain is expected Tuesday morning and afternoon. The
lower elevations of the North Bay, SF Bay Area, and Central Coast
are currently forecast to see three-quarters of an inch to one inch
of rain, save for the most northern parts of Sonoma County where
rain totals go down to half an inch. The Central Coast mountains
remain the regional epicenter of rain impacts, with rain totals in
the Santa Lucia mountains expected to range from 2 to 3 inches, and
the Santa Cruz and interior Monterey and San Benito mountains
expected to reach 1.5 to 2.5 inches of rain. Higher elevations in
the Bay Area should expect 1 to 2 inches of rain. A slight chance of
thunderstorms exists into the post-frontal environment on Tuesday
evening, especially on the Central Coast.
The combination of continued rain, high winds, and saturated soils
poses a set of hazards that, at this point, are now familiar to many
in our region. The rain brings a chance for minor urban and small
stream flooding, and with soils already so saturated from the storms
earlier this month, the risk of shallow landslides continue. High
wind gusts will also result in downed trees and power lines,
possibly resulting in isolated power outages, and difficult driving
for high profile vehicles. If your area is prone to power outages,
use today to prepare, and remember to "turn around, don't drown"
when encountering a flooded roadway or path.
The heaviest rain diminishes Tuesday evening, with post frontal
showers expected through Wednesday. Current predictions leave
Thursday to Saturday relatively dry with very little, if any, rain.
Any rain that falls in the next three days is not expected to rise
past half an inch in total. All attention then focuses on the
beginning of the next week, where early model indications suggest
another system coming through, the exact details of which won't
become clear until later in the week. In addition, low temperatures
next weekend are expected to dip into unseasonably cold readings,
with lows in the low to mid 30s expected Saturday and Sunday morning
in the interior valleys, including the Sonoma, Napa, and Salinas
Valleys, and into the higher elevations. With the occurrence of "bud
break" in the North Bay vineyards, and the Spring harvest
approaching, this is a particularly sensitive time for the
agricultural industries. More details on the low temperatures and
the system next week will come as the forecast gets refined later in
the week.
&&
.AVIATION...as of 10:50 PM PDT Monday..For the 00z TAFs..VFR lasts
into early Tuesday morning. Easterly and southeasterly winds begin
to increase as a strong surface low approaches. This low pressure
system will bring moderate to heavy rain starting early morning
lasting through the afternoon with scattered showers continuing
through the evening and lingering into the night. Expect MVFR CIGs
for most of the TAF period. As the center of the low moves inland,
southerly winds will increase. Strong gusts of 35 to 40 knots
possible across the region, primarily south of the Golden Gate.
Winds begin to diminish int Tuesday night.
Vicinity of KSFO...VFR last until early Tuesday morning before rain
arrives at the terminal around 12Z with MVFR conditions expected.
Winds will turn easterly around that time and increase as low
approaches. Winds shift southeast as low moves inland and eventually
become even more southerly into the afternoon. Wind gusts become
strongest between 20z and 04z with gusts up to 34 knots (but
potentially higher depending where low sets up and will continue to
monitor). Expect winds to reduce into Tuesday night, but they will
stay breezy.
SFO Bridge Approach...Similar to SFO.
Monterey Bay Terminals...VFR lasts into the morning before MVFR
through the rest of the TAF period. Southeast winds increase
starting in the early morning and look to continue to gain strength
through the morning with 40 kt gusts possible. Moderate, to at times
of heavy, rain will accompany the increased winds. Rain chances as
well as the elevated winds begin to reduce into Tuesday night.
&&
.MARINE...as of 10:47 PM PDT Monday...A robust low pressure system
arrives overnight tonight, moving through the coastal waters
through the morning Tuesday, bringing gale force gusts to much of
the waters south of Pigeon Point. Storm force gusts possible as
low moves through Tuesday morning. Widespread rain also expected
overnight through Wednesday. By midweek, a west swell will
combined with wind wave will create high and steep seas. A long
period northwesterly swell also expected to arrive towards the
end of the week.
&&
.MTR WATCHES/WARNINGS/ADVISORIES...
.Tngt...SCA...SF Bay from 3 AM
SCA...Pt Arena to Pt Reyes 0-10 nm from 3 AM
SCA...Pt Reyes to Pigeon Pt 0-10 nm from 3 AM
GLW...Mry Bay from 3 AM
GLW...Pigeon Pt to Pt Pinos 0-10 nm from 3 AM
GLW...Pt Pinos to Pt Piedras Blancas 0-10 nm from 3 AM
GLW...Pigeon Pt to Pt Piedras Blancas 10-60 nm from 3 AM
SCA...Pt Pinos to Pt Piedras Blancas 0-10 nm until 3 AM
SCA...Pigeon Pt to Pt Piedras Blancas 10-60 nm until 3 AM
SCA...Pt Arena to Pigeon Pt 10-60 nm from 3 AM
&&
PUBLIC FORECAST: DialH/Behringer
AVIATION: Murdock
MARINE: McCorkle
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www.youtube.com/nwsbayareaThe office that day
Everything else NWS San Francisco Bay Area, CA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 21, 7:02 AM PDT | Areal Flood Advisory | MTR | San Mateo, Santa Clara, Santa Cruz | 4 hr |
| Mar 21, 8:20 AM PDT | Areal Flood Advisory | MTR | Alameda, Contra Costa, San Mateo, Santa Clara | 55 min |
| Mar 21, 8:48 AM PDT | Areal Flood Advisory | MTR | Monterey, San Benito | 82 min |
| Mar 21, 12:33 PM PDT | Special Weather Statement | MTR | Santa Cruz | 57 min |
| Mar 21, 12:43 PM PDT | Severe Thunderstorm Warning | MTR | Monterey | 62 min |
| Mar 21, 12:48 PM PDT | Special Marine Warning | MTR | 27 min | |
| Mar 21, 12:52 PM PDT | Severe Thunderstorm Warning | MTR | Santa Cruz | 38 min |
| Mar 21, 1:00 PM PDT | Areal Flood Advisory | MTR | Monterey | 60 min |
| Mar 21, 3:57 PM PDT | Areal Flood Advisory | MTR | Alameda, City and County of San Francisco, San Mateo, Santa Clara | 20 hr |
| Mar 21, 4:16 PM PDT | Areal Flood Advisory | MTR | Sonoma | 25 hr |
| Mar 21, 4:43 PM PDT | Areal Flood Advisory | MTR | Alameda, Santa Clara | 6 hr |
Nearby
Storm Warnings in California, 2023Every storm warning in 2023
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text.