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Alerts from NWS San Francisco CA (UNOFFICIAL) @sfo.nws-bot.us · 21m

Heat Advisory issued October 2 at 8:53PM PDT until October 4 at 10:00PM PDT by NWS San Francisco CA Additional Details Here.

* WHAT...Hot conditions with maximum temperatures in the low-80s to
low-90s. Mild minimum temperatures and weak onshore flow will limit
overnight relief.

* WHERE...The Marin Hills, Northern Monterey Bay, San Francisco, and
Northern Salinas Valley/Hollister Valley and Carmel Valley.

* WHEN...From 11 AM Saturday to 10 PM PDT Sunday.

* IMPACTS...This level of heat affects anyone without effective
cooling and/or adequate hydration. Impacts likely in some health
systems, heat-sensitive industries and infrastructure.

* WHAT...Hot conditions with maximum temperatures in the mid-90s to
low-100s. Mild minimum temperatures and weak onshore flow will
limit overnight relief.

* WHERE...The East Bay and San Francisco Bay Shoreline, North Bay
Interior Mountains and Valleys, The Santa Clara Valley and Eastern
Hills, The Santa Cruz Mountains, Interior Monterey County and the
Santa Lucia Range, Most of San Benito County and the Cholame Hills
in Southeast Monterey County, and Southern Salinas Valley/Arroyo
Seco and Lake San Antonio.

* WHEN...From 11 AM Saturday to 10 PM PDT Monday.

* IMPACTS...This level of heat affects anyone without effective
cooling and/or adequate hydration. Impacts likely in some health
systems, heat-sensitive industries and infrastructure.

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Alerts from NWS San Francisco CA (UNOFFICIAL) @sfo.nws-bot.us · 2h

MTR expires Coastal Flood Advisory for North Bay Interior Valleys, Northern Monterey Bay, San Francisco, San Francisco Bay Shoreline, Southern Monterey Bay and Big Sur Coast [CA] ... at Sat, 03 Oct 2026 01:15:20 +0000 via IEMbot Additional Details Here.

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Alerts from NWS San Francisco CA (UNOFFICIAL) @sfo.nws-bot.us · 3h

SAN FRANCISCO DWTN CA Oct 2 Climate Report: High: 76 Low: 56 Precip: 0.0" Snow: Missing at Sat, 03 Oct 2026 00:33:31 +0000 via IEMbot Additional Details Here.

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Alerts from NWS San Francisco CA (UNOFFICIAL) @sfo.nws-bot.us · 3h

CONCORD AIRPORT Oct 2 Climate Report: High: 91 Low: 58 Precip: 0.0" Snow: Missing at Sat, 03 Oct 2026 00:33:32 +0000 via IEMbot Additional Details Here.

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Alerts from NWS San Francisco CA (UNOFFICIAL) @sfo.nws-bot.us · 3h

OAKLAND AIRPORT Oct 2 Climate Report: High: 78 Low: 57 Precip: 0.0" Snow: Missing at Sat, 03 Oct 2026 00:33:33 +0000 via IEMbot Additional Details Here.

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Alerts from NWS San Francisco CA (UNOFFICIAL) @sfo.nws-bot.us · 3h

MTR issues Area Forecast Discussion (AFD) at Oct 2, 5:24 PM PDT ...New AVIATION, MARINE... via IEMbot Additional Details Here.

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Alerts from NWS San Francisco CA (UNOFFICIAL) @sfo.nws-bot.us · 7h

MTR issues Area Forecast Discussion (AFD) at Oct 2, 2:04 PM PDT ...New SHORT TERM, LONG TERM... via IEMbot Additional Details Here.

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Alerts from NWS San Francisco CA (UNOFFICIAL) @sfo.nws-bot.us · 9h

Heat Advisory issued October 2 at 11:16AM PDT until October 5 at 10:00PM PDT by NWS San Francisco CA Additional Details Here.

* WHAT...Temperatures in the middle 90s to near 103 expected. Mild
lows in the upper 60s to middle 70s in the higher elevations will
limit overnight recovery.

* WHERE...North Bay Interior Valleys.

* WHEN...From 11 AM Saturday to 10 PM PDT Monday.

* IMPACTS...This level of heat affects anyone without effective
cooling and/or adequate hydration. Impacts likely in some health
systems, heat-sensitive industries and infrastructure.

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Alerts from NWS San Francisco CA (UNOFFICIAL) @sfo.nws-bot.us · 9h

MTR updates Heat Advisory valid at Oct 3, 11:00 AM PDT (extends time and expands area to include North Bay Interior Valleys [CA], extends time of 11 forecast zones in [CA]) till Oc... at Fri, 02 Oct 2026 18:16:54 +0000 via IEMbot Additional Details Here.

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Alerts from NWS San Francisco CA (UNOFFICIAL) @sfo.nws-bot.us · 10h

MTR issues Area Forecast Discussion (AFD) at Oct 2, 10:49 AM PDT ...New AVIATION, MARINE... via IEMbot Additional Details Here.

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Alerts from NWS San Francisco CA (UNOFFICIAL) @sfo.nws-bot.us · 16h

MTR issues Area Forecast Discussion (AFD) at Oct 2, 4:42 AM PDT ...New AVIATION, MARINE, FIRE WEATHER... via IEMbot Additional Details Here.

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Alerts from NWS San Francisco CA (UNOFFICIAL) @sfo.nws-bot.us · 16h

MTR issues Area Forecast Discussion (AFD) at Oct 2, 4:42 AM PDT ...New AVIATION, MARINE, FIRE WEATHER... via IEMbot Additional Details Here.

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Alerts from NWS San Francisco CA (UNOFFICIAL) @sfo.nws-bot.us · 16h

MTR issues Area Forecast Discussion (AFD) at Oct 2, 4:42 AM PDT ...New AVIATION, MARINE, FIRE WEATHER... via IEMbot Additional Details Here.

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Alerts from NWS San Francisco CA (UNOFFICIAL) @sfo.nws-bot.us · 19h

OAKLAND AIRPORT Oct 1 Climate Report: High: 77 Low: 52 Precip: 0.0" Snow: Missing at Fri, 02 Oct 2026 08:32:49 +0000 via IEMbot Additional Details Here.

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Alerts from NWS San Francisco CA (UNOFFICIAL) @sfo.nws-bot.us · 19h

SANTA ROSA AIRPORT Oct 1 Climate Report: High: 91 Low: 45 Precip: 0.0" Snow: Missing at Fri, 02 Oct 2026 08:32:49 +0000 via IEMbot Additional Details Here.

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Alerts from NWS San Francisco CA (UNOFFICIAL) @sfo.nws-bot.us · 19h

MONTEREY AIRPORT Oct 1 Climate Report: High: 67 Low: 53 Precip: 0.0" Snow: Missing at Fri, 02 Oct 2026 08:32:52 +0000 via IEMbot Additional Details Here.

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Alerts from NWS San Francisco CA (UNOFFICIAL) @sfo.nws-bot.us · 19h

SAN JOSE AIRPORT Oct 1 Climate Report: High: 83 Low: 58 Precip: 0.0" Snow: Missing at Fri, 02 Oct 2026 08:32:52 +0000 via IEMbot Additional Details Here.

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Alerts from NWS San Francisco CA (UNOFFICIAL) @sfo.nws-bot.us · 19h

WATSONVILLE AIRPORT Oct 1 Climate Report: High: 73 Low: 54 Precip: 0.0" Snow: Missing at Fri, 02 Oct 2026 08:32:52 +0000 via IEMbot Additional Details Here.

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Alerts from NWS San Francisco CA (UNOFFICIAL) @sfo.nws-bot.us · 19h

Heat Advisory issued October 2 at 1:25AM PDT until October 4 at 10:00PM PDT by NWS San Francisco CA Additional Details Here.

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Alerts from NWS San Francisco CA (UNOFFICIAL) @sfo.nws-bot.us · 19h

MTR continues Heat Advisory valid at Oct 3, 11:00 AM PDT for 11 forecast zones in [CA] till Oct 4, 10:00 PM PDT at Fri, 02 Oct 2026 08:26:04 +0000 via IEMbot Additional Details Here.

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Alerts from NWS San Francisco CA (UNOFFICIAL) @sfo.nws-bot.us · 20h

MTR issues Area Forecast Discussion (AFD) at Oct 2, 12:38 AM PDT ...New SHORT TERM, LONG TERM... via IEMbot Additional Details Here.

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Alerts from NWS San Francisco CA (UNOFFICIAL) @sfo.nws-bot.us · 23h

MTR issues Area Forecast Discussion (AFD) at Oct 1, 9:37 PM PDT ...New AVIATION, MARINE... via IEMbot Additional Details Here.

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Alerts from NWS San Francisco CA (UNOFFICIAL) @sfo.nws-bot.us · 02/10/2026

MTR continues Coastal Flood Advisory for North Bay Interior Valleys, Northern Monterey Bay, San Francisco, San Francisco Bay Shoreline, Southern Monterey Bay and Big Sur Coast [CA]... at Fri, 02 Oct 2026 02:39:22 +0000 via IEMbot Additional Details Here.

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Alerts from NWS San Francisco CA (UNOFFICIAL) @sfo.nws-bot.us · 02/10/2026

Coastal Flood Advisory issued October 1 at 7:39PM PDT until October 2 at 6:00PM PDT by NWS San Francisco CA Additional Details Here.

* WHAT...Up to 0.9 ft of inundation above ground level is
possible in low-lying areas near shorelines and tidal waterways.

* WHERE...Bayshore locations along the San Francisco Bay, San
Pablo Bay, and Monterey Bay.

* WHEN...Until 6 PM PDT Friday.

* IMPACTS...Flooding of lots, parks, and roads with only
isolated road closures expected. High tides will result in
flooding along coastal trails, cut off access to some low-
lying beaches and coastal areas, and bring water and waves
farther up the beach than typical.

* ADDITIONAL DETAILS...At the San Francisco tidal gauge, high tide
is expected to be 0.9 ft above normal (6.7 ft MLLW) at 3:58 PM
Friday 10/02. These predictions include up to 0.7 ft of surge
that will enhance the astronomical tide and flooding threat.
High tide varies up to 90 minutes earlier or later along the
Pacific Coast and through the San Francisco Bay, respectively.

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Alerts from NWS San Francisco CA (UNOFFICIAL) @sfo.nws-bot.us · 02/10/2026

MONTEREY AIRPORT Oct 1 Climate Report: High: 67 Low: 53 Precip: 0.0" Snow: Missing at Fri, 02 Oct 2026 00:37:26 +0000 via IEMbot Additional Details Here.

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Alerts from NWS San Francisco CA (UNOFFICIAL) @sfo.nws-bot.us · 02/10/2026

WATSONVILLE AIRPORT Oct 1 Climate Report: High: 73 Low: 54 Precip: 0.0" Snow: Missing at Fri, 02 Oct 2026 00:37:26 +0000 via IEMbot Additional Details Here.

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Alerts from NWS San Francisco CA (UNOFFICIAL) @sfo.nws-bot.us · 02/10/2026

NAPA AIRPORT Oct 1 Climate Report: High: 81 Low: 52 Precip: 0.0" Snow: Missing at Fri, 02 Oct 2026 00:37:26 +0000 via IEMbot Additional Details Here.

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Alerts from NWS San Francisco CA (UNOFFICIAL) @sfo.nws-bot.us · 02/10/2026

LIVERMORE AIRPORT Oct 1 Climate Report: High: 96 Low: 56 Precip: 0.0" Snow: Missing at Fri, 02 Oct 2026 00:37:26 +0000 via IEMbot Additional Details Here.

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Alerts from NWS San Francisco CA (UNOFFICIAL) @sfo.nws-bot.us · 02/10/2026

MTR issues Area Forecast Discussion (AFD) at Oct 1, 5:04 PM PDT ...New AVIATION, MARINE... via IEMbot Additional Details Here.

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Alerts from NWS San Francisco CA (UNOFFICIAL) @sfo.nws-bot.us · 01/10/2026

MTR issues Area Forecast Discussion (AFD) at Oct 1, 12:31 PM PDT ...New SHORT TERM, LONG TERM, FIRE WEATHER... via IEMbot Additional Details Here.

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Alerts from NWS San Francisco CA (UNOFFICIAL) @sfo.nws-bot.us · 01/10/2026

Coastal Flood Advisory issued October 1 at 12:20PM PDT until October 2 at 6:00PM PDT by NWS San Francisco CA Additional Details Here.

* WHAT...Up to 1.1 ft of inundation above ground level is
possible in low-lying areas near shorelines and tidal
waterways.

* WHERE...Bayshore locations along the San Francisco Bay, San
Pablo Bay, and Monterey Bay.

* WHEN...Until 6 PM PDT Friday.

* IMPACTS...Flooding of lots, parks, and roads with only
isolated road closures expected. High tides will result in
flooding along coastal trails, cut off access to some low-
lying beaches and coastal areas, and bring water and waves
farther up the beach than typical.

* ADDITIONAL DETAILS...At the San Francisco tidal gauge, high tide
is expected to be 1.1 ft above normal (6.92 ft MLLW) at 2:58 PM
Thursday 10/01 and 0.9 ft above normal (6.71 ft MLLW) at 3:58 PM
Friday 10/02. These predictions include up to 0.7 ft of surge
that will enhance the astronomical tide and flooding threat.
High tide varies up to 90 minutes earlier or later along the
Pacific Coast and through the San Francisco Bay, respectively.

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Alerts from NWS San Francisco CA (UNOFFICIAL) @sfo.nws-bot.us · 01/10/2026

MTR extends time of Coastal Flood Advisory for North Bay Interior Valleys, Northern Monterey Bay, San Francisco, San Francisco Bay Shoreline, Southern Monterey Bay and Big Sur Coas... at Thu, 01 Oct 2026 19:20:56 +0000 via IEMbot Additional Details Here.

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Alerts from NWS San Francisco CA (UNOFFICIAL) @sfo.nws-bot.us · 01/10/2026

MTR issues Area Forecast Discussion (AFD) at Oct 1, 10:31 AM PDT ...New AVIATION... via IEMbot Additional Details Here.

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Alerts from NWS San Francisco CA (UNOFFICIAL) @sfo.nws-bot.us · 01/10/2026

MTR issues Area Forecast Discussion (AFD) at Oct 1, 9:52 AM PDT ...New UPDATE, MARINE... via IEMbot Additional Details Here.

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Alerts from NWS San Francisco CA (UNOFFICIAL) @sfo.nws-bot.us · 01/10/2026

MTR issues Heat Advisory valid at Oct 3, 11:00 AM PDT for 11 forecast zones in [CA] till Oct 4, 10:00 PM PDT at Thu, 01 Oct 2026 16:43:45 +0000 via IEMbot Additional Details Here.

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Alerts from NWS San Francisco CA (UNOFFICIAL) @sfo.nws-bot.us · 01/10/2026

Heat Advisory issued October 1 at 9:43AM PDT until October 4 at 10:00PM PDT by NWS San Francisco CA Additional Details Here.

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Alerts from NWS San Francisco CA (UNOFFICIAL) @sfo.nws-bot.us · 01/10/2026

MTR issues Area Forecast Discussion (AFD) at Oct 1, 5:16 AM PDT ...New AVIATION, MARINE... via IEMbot Additional Details Here.

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Alerts from NWS San Francisco CA (UNOFFICIAL) @sfo.nws-bot.us · 01/10/2026

CONCORD AIRPORT Sep 30 Climate Report: High: 92 Low: 56 Precip: 0.0" Snow: Missing at Thu, 01 Oct 2026 08:33:21 +0000 via IEMbot Additional Details Here.

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Alerts from NWS San Francisco CA (UNOFFICIAL) @sfo.nws-bot.us · 01/10/2026

OAKLAND AIRPORT Sep 30 Climate Report: High: 81 Low: 53 Precip: 0.0" Snow: Missing at Thu, 01 Oct 2026 08:33:22 +0000 via IEMbot Additional Details Here.

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Alerts from NWS San Francisco CA (UNOFFICIAL) @sfo.nws-bot.us · 01/10/2026

NAPA AIRPORT Sep 30 Climate Report: High: 86 Low: 51 Precip: 0.0" Snow: Missing at Thu, 01 Oct 2026 08:33:22 +0000 via IEMbot Additional Details Here.

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Alerts from NWS San Francisco CA (UNOFFICIAL) @sfo.nws-bot.us · 01/10/2026

WATSONVILLE AIRPORT Sep 30 Climate Report: High: 79 Low: 50 Precip: 0.0" Snow: Missing at Thu, 01 Oct 2026 08:33:24 +0000 via IEMbot Additional Details Here.

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Alerts from NWS San Francisco CA (UNOFFICIAL) @sfo.nws-bot.us · 01/10/2026

MTR issues Area Forecast Discussion (AFD) at Oct 1, 12:00 AM PDT ...New SHORT TERM, LONG TERM... via IEMbot Additional Details Here.

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Alerts from NWS San Francisco CA (UNOFFICIAL) @sfo.nws-bot.us · 01/10/2026

MTR issues Area Forecast Discussion (AFD) at Sep 30, 10:28 PM PDT ...New AVIATION, MARINE... via IEMbot Additional Details Here.

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Alerts from NWS San Francisco CA (UNOFFICIAL) @sfo.nws-bot.us · 01/10/2026

Small Craft Advisory issued September 30 at 8:13PM PDT until October 1 at 9:00AM PDT by NWS San Francisco CA Additional Details Here.(1/2)

* WHAT...Northwest winds 15 to 25 kt with gusts up to 30 kt and
seas 9 to 13 ft.

* WHERE...Waters from Point Arena to Point Reyes 10-60 NM.

* WHEN...Until 9 AM PDT Thursday.

* IMPACTS...Conditions will be hazardous to small craft.

* WHAT...Northwest winds 10 to 20 kt and seas 8 to 12 ft.

* WHERE...Waters from Point Reyes to Pigeon Point 10-60 NM.

* WHEN...Until 9 AM PDT Thursday.

* IMPACTS...Conditions will be hazardous to small craft.

* WHAT...Northwest winds 10 to 20 kt and seas 8 to 11 ft.

* WHERE...Waters from Pigeon Point to Point Pinos 10-60 NM.

* WHEN...Until 3 AM PDT Thursday.

* IMPACTS...Conditions will be hazardous to small craft.

* WHAT...Northwest winds 10 to 15 kt and seas 8 to 11 ft.

* WHERE...Waters from Point Pinos to Point Piedras Blancas 10-
60 NM.

* WHEN...Until 3 AM PDT Thursday.

* IMPACTS...Conditions will be hazardous to small craft.

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Alerts from NWS San Francisco CA (UNOFFICIAL) @sfo.nws-bot.us · 01/10/2026

SAN FRANCISCO DWTN CA Sep 30 Climate Report: High: 72 Low: 57 Precip: 0.0" Snow: Missing at Thu, 01 Oct 2026 00:34:34 +0000 via IEMbot Additional Details Here.

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Alerts from NWS San Francisco CA (UNOFFICIAL) @sfo.nws-bot.us · 01/10/2026

HAYWARD AIRPORT Sep 30 Climate Report: High: 86 Low: 57 Precip: 0.0" Snow: Missing at Thu, 01 Oct 2026 00:34:34 +0000 via IEMbot Additional Details Here.

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Alerts from NWS San Francisco CA (UNOFFICIAL) @sfo.nws-bot.us · 01/10/2026

NAPA AIRPORT Sep 30 Climate Report: High: 86 Low: 51 Precip: 0.0" Snow: Missing at Thu, 01 Oct 2026 00:34:34 +0000 via IEMbot Additional Details Here.

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Alerts from NWS San Francisco CA (UNOFFICIAL) @sfo.nws-bot.us · 01/10/2026

WATSONVILLE AIRPORT Sep 30 Climate Report: High: 79 Low: 50 Precip: 0.0" Snow: Missing at Thu, 01 Oct 2026 00:34:35 +0000 via IEMbot Additional Details Here.

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Alerts from NWS San Francisco CA (UNOFFICIAL) @sfo.nws-bot.us · 01/10/2026

MTR issues Area Forecast Discussion (AFD) at Sep 30, 5:09 PM PDT ...New AVIATION... via IEMbot Additional Details Here.

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Alerts from NWS San Francisco CA (UNOFFICIAL) @sfo.nws-bot.us · 01/10/2026

MTR continues Coastal Flood Advisory for North Bay Interior Valleys, Northern Monterey Bay, San Francisco, San Francisco Bay Shoreline, Southern Monterey Bay and Big Sur Coast [CA]... at Wed, 30 Sep 2026 22:46:28 +0000 via IEMbot Additional Details Here.

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