Coastal Flood Advisory
Coastal Hazard Message
National Weather Service Eureka CA
148 PM PDT Sun Oct 25 2026
CAZ103-260500-
/O.NEW.KEKA.CF.Y.0020.261026T1700Z-261026T2100Z/
Northern Coastal Humboldt-
148 PM PDT Sun Oct 25 2026
...COASTAL FLOOD ADVISORY IN EFFECT FROM 10 AM TO 2 PM PDT
MONDAY...
* WHAT...High astronomical tides will cause minor flooding in low
lying areas around Humboldt Bay. Up to one half foot of
saltwater inundation above ground level is possible near
shorelines and tidal waterways. Between 8.9 and 9.2 feet MLLW
at the North Spit tide gauge is predicted.
* WHERE...Northern Coastal Humboldt County.
* WHEN...From 10 AM to 2 PM PDT Monday. High tide is at 11:58 AM
at the Humboldt Bay North Spit tide gauge. Saltwater inundation
will be possible 1 to 2 hours before and after high tide.
* IMPACTS...Flooding of low lying areas around Humboldt Bay
including parks and roads with only isolated closures
expected. Flooding will likely impact Jackson Ranch Road in
the Arcata Bottoms and several roads in King Salmon.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A Coastal Flood Advisory indicates that onshore winds and tides
will combine to generate flooding of low areas along the shore.
Feet Above Ground is locally defined as feet above the Highest
Astronomical Tide or HAT.
&&
$$
Coastal Hazard Message
National Weather Service San Francisco CA
906 AM PDT Sun Oct 25 2026
CAZ505-509-260400-
/O.CON.KMTR.CF.Y.0014.261026T1600Z-261029T2200Z/
Coastal North Bay Including Point Reyes National Seashore-
San Francisco Peninsula Coast-
906 AM PDT Sun Oct 25 2026
...COASTAL FLOOD ADVISORY REMAINS IN EFFECT FROM 9 AM MONDAY TO
3 PM PDT THURSDAY...
* WHAT...Up to 1.9ft of inundation above ground level is
possible in low-lying areas near shorelines and tidal
waterways.
* WHERE...Pacific Coast.
* WHEN...From 9 AM Monday to 3 PM PDT Thursday.
* IMPACTS...High tides will result in flooding of low-lying
infrastructure, isolated road closures, and coastal erosion.
Rising tides will bring water and waves farther up the beach
than normal, restricting escape from beaches and coastal areas.
* ADDITIONAL DETAILS...At the San Francisco tidal gauge, high
tide is expected to be 1.6 ft above normal (7.4 ft MLLW) at
11:39 AM Monday 10/26, 1.8 ft above normal (7.6 ft MLLW) at
12:15 PM Tuesday 10/27, 1.9 ft above normal (7.7 ft MLLW) at
12:56 PM Wednesday 10/28, and 1.7 ft above normal (7.5 ft
MLLW) at 01:43 PM Thursday 10/29. These predictions include up
to 1.0 ft of surge that will enhance the astronomical tide and
flooding threat. High tide varies up to 90 minutes earlier or
later along the Pacific Coast and through the San Francisco
Bay, respectively.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If travel is required, allow extra time as some roads may be
closed. Do not drive around barricades or through water of
unknown depth. Take the necessary actions to protect flood-prone
property.
&&
$$
Coastal Hazard Message
National Weather Service San Francisco CA
906 AM PDT Sun Oct 25 2026
CAZ006-506-508-529-530-260400-
/O.CON.KMTR.CF.Y.0014.000000T0000Z-261029T2200Z/
San Francisco-North Bay Interior Valleys-
San Francisco Bay Shoreline-Northern Monterey Bay-
Southern Monterey Bay and Big Sur Coast-
906 AM PDT Sun Oct 25 2026
...COASTAL FLOOD ADVISORY REMAINS IN EFFECT UNTIL 3 PM PDT
THURSDAY...
* WHAT...Up to 1.9ft of inundation above ground level is
possible in low-lying areas near shorelines and tidal
waterways.
* WHERE...Bay Shoreline locations of San Francisco Bay, Monterey
Bay and Big Sur Coast.
* WHEN...Until 3 PM PDT Thursday.
* IMPACTS...High tides will result in flooding of low-lying
infrastructure, isolated road closures, and coastal erosion.
Rising tides will bring water and waves farther up the beach
than normal, restricting escape from beaches and coastal areas.
* ADDITIONAL DETAILS...At the San Francisco tidal gauge, high
tide is expected to be 1.5 ft above normal (7.3 ft MLLW) at
11:07 AM Sunday 10/25, 1.6 ft above normal (7.4 ft MLLW) at
11:39 AM Monday 10/26, 1.8 ft above normal (7.6 ft MLLW) at
12:15 PM Tuesday 10/27, 1.9 ft above normal (7.7 ft MLLW) at
12:56 PM Wednesday 10/28, and 1.7 ft above normal (7.5 ft
MLLW) at 01:43 PM Thursday 10/29. These predictions include up
to 1.0 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.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If travel is required, allow extra time as some roads may be
closed. Do not drive around barricades or through water of
unknown depth. Take the necessary actions to protect flood-prone
property.
&&
$$
Small Craft Advisory
URGENT - MARINE WEATHER MESSAGE
National Weather Service Medford OR
1142 AM PDT Sun Oct 25 2026
PZZ350-370-261200-
/O.CON.KMFR.SC.Y.0087.000000T0000Z-261027T1200Z/
Coastal waters from Florence to Cape Blanco OR out 10 nm-
Waters from Florence to Cape Blanco OR from 10 to 60 nm-
1142 AM PDT Sun Oct 25 2026
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 5 AM PDT
TUESDAY...
* WHAT...South to southwest winds 10 to 20 kt with gusts to 25 kt.
Steep swell dominated seas 8 to 11 ft at 9 to 11 seconds.
* WHERE...All areas.
* WHEN...Until 5 AM PDT Tuesday.
* IMPACTS...Gusty winds and/or steep seas could capsize or
damage smaller vessels.
* View the hazard area in detail at https://go.usa.gov/x6hks
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Inexperienced mariners and those operating smaller vessels should
remain in port and avoid the area of hazardous conditions.
&&
$$
Visit us at https://www.weather.gov/Medford
URGENT - MARINE WEATHER MESSAGE
National Weather Service Medford OR
1142 AM PDT Sun Oct 25 2026
PZZ356-376-261200-
/O.CON.KMFR.SC.Y.0087.261025T2100Z-261027T1200Z/
Coastal waters from Cape Blanco OR to Pt. St. George CA out 10 nm-
Waters from Cape Blanco OR to Pt. St. George CA from 10 to 60 nm-
1142 AM PDT Sun Oct 25 2026
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 5 AM PDT
TUESDAY...
* WHAT...South to southwest winds 10 to 20 kt with gusts to 25 kt.
Steep swell dominated seas 7 to 10 ft at 9 to 11 seconds.
* WHERE...All areas.
* WHEN...Until 5 AM PDT Tuesday.
* IMPACTS...Gusty winds and/or steep seas could capsize or
damage smaller vessels.
* View the hazard area in detail at https://go.usa.gov/x6hks
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Inexperienced mariners and those operating smaller vessels should
remain in port and avoid the area of hazardous conditions.
&&
$$
Lake Wind Advisory
URGENT - WEATHER MESSAGE
National Weather Service Reno NV
1217 PM PDT Sun Oct 25 2026
CAZ071-270100-
/O.CON.KREV.LW.Y.0030.261026T1700Z-261027T0100Z/
Lassen-Eastern Plumas-Eastern Sierra Counties-
Including the cities of Loyalton, Westwood, Sierraville, Portola, and
Susanville
1217 PM PDT Sun Oct 25 2026
...LAKE WIND ADVISORY REMAINS IN EFFECT FROM 10 AM TO 6 PM PDT MONDAY
FOR STAMPEDE RESERVOIR, LAKE DAVIS, ANTELOPE LAKE, AND EAGLE LAKE...
* WHAT...Southwest winds 15 to 20 mph with gusts up to 35 mph for
Stampede Reservoir, Lake Davis, Antelope Lake, and Eagle Lake.
* WHERE...Lassen-Eastern Plumas-Eastern Sierra Counties.
* WHEN...From 10 AM to 6 PM PDT Monday.
* IMPACTS...Strong winds and rough waves on area lakes will create
hazardous conditions for small craft.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Check lake conditions before heading out and be prepared for a sudden
increase in winds and wave heights. Consider postponing boating
activities on the lake until a day with less wind.
&&
$$
URGENT - WEATHER MESSAGE
National Weather Service Reno NV
1217 PM PDT Sun Oct 25 2026
CAZ072-NVZ002-270100-
/O.CON.KREV.LW.Y.0030.261026T1100Z-261027T0100Z/
Greater Lake Tahoe Area-Greater Lake Tahoe Area-
Including the cities of Tahoe City, Truckee, Stateline, Glenbrook,
South Lake Tahoe, Markleeville, and Incline Village
1217 PM PDT Sun Oct 25 2026
...LAKE WIND ADVISORY REMAINS IN EFFECT FROM 4 AM TO 6 PM PDT MONDAY
FOR LAKE TAHOE, DONNER LAKE, AND PROSSER AND BOCA RESERVOIRS...
* WHAT...Southwest winds 15 to 25 mph with gusts up to 40 mph for
Lake Tahoe, Donner Lake, and Prosser and Boca Reservoirs. Waves 2
to 4 feet on Lake Tahoe.
* WHERE...Greater Lake Tahoe Area.
* WHEN...From 4 AM to 6 PM PDT Monday.
* IMPACTS...Strong winds and rough waves on area lakes will create
hazardous conditions for small craft.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Check lake conditions before heading out and be prepared for a sudden
increase in winds and wave heights. Consider postponing boating
activities on the lake until a day with less wind.
&&
$$
URGENT - WEATHER MESSAGE
National Weather Service Reno NV
1217 PM PDT Sun Oct 25 2026
NVZ003-270100-
/O.CON.KREV.LW.Y.0030.261026T1700Z-261027T0100Z/
Greater Reno-Carson City-Minden Area-
Including the cities of Verdi, Sparks, Gardnerville, and Virginia
City
1217 PM PDT Sun Oct 25 2026
...LAKE WIND ADVISORY REMAINS IN EFFECT FROM 10 AM TO 6 PM PDT MONDAY
FOR WASHOE LAKE...
* WHAT...Southwest winds 20 to 30 mph with gusts up to 45 mph for
Washoe Lake.
* WHERE...Greater Reno-Carson City-Minden Area.
* WHEN...From 10 AM to 6 PM PDT Monday.
* IMPACTS...Strong winds and rough waves on area lakes will create
hazardous conditions for small craft.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Check lake conditions before heading out and be prepared for a sudden
increase in winds and wave heights. Consider postponing boating
activities on the lake until a day with less wind.
&&
$$
Frost Advisory
URGENT - WEATHER MESSAGE
National Weather Service Eureka CA
154 PM PDT Sun Oct 25 2026
CAZ110-111-114-118-260500-
/O.EXT.KEKA.FR.Y.0026.261026T0800Z-261026T1600Z/
Northwestern Interior Mendocino-Northeastern Interior Mendocino-
Northern Lake-Western Lake-
Including Covelo, Gravelly Valley Airport, Finley, Potter Valley, and
Upper Lake
154 PM PDT Sun Oct 25 2026
...FROST ADVISORY NOW IN EFFECT FROM 1 AM TO 9 AM PDT MONDAY...
* WHAT...Temperatures as low as 34 will result in frost formation.
* WHERE...Northern Mendocino Interior, Northern Lake, and Western
Lake.
* WHEN...From 1 AM to 9 AM PDT Monday.
* IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive
outdoor plants may be killed if left uncovered.
* ADDITIONAL DETAILS...There is some uncertainty on how quickly
clouds will come in and prevent frost. So this may limit the frost
potential, especially in northern Mendocino county.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Take steps now to protect tender plants from the cold.
&&
$$
For hazard areas see https://www.weather.gov/wrh/hazards/?wfo=eka
MKK
