Freeze Warning
URGENT - WEATHER MESSAGE
National Weather Service Los Angeles/Oxnard CA
131 AM PST Thu Dec 4 2025
CAZ343-344-383-042145-
/O.NEW.KLOX.FZ.A.0005.251205T1000Z-251205T1600Z/
/O.CON.KLOX.FZ.W.0015.000000T0000Z-251204T1600Z/
Southern Salinas Valley-San Luis Obispo County Interior Valleys-
Antelope Valley-
Including the cities of Atascadero, Creston, Templeton, Paso
Robles, Shandon, Palmdale, Carrizo Plain, San Miguel, Lancaster,
Lake Los Angeles, and Lake Nacimiento
131 AM PST Thu Dec 4 2025
...FREEZE WARNING REMAINS IN EFFECT UNTIL 8 AM PST THIS MORNING...
...FREEZE WATCH IN EFFECT FROM LATE TONIGHT THROUGH FRIDAY MORNING...
* WHAT...Sub-freezing temperatures as low as 25 in the Antelope
Valley, and as low as 28 in the Salinas Valley and interior San
Luis Obispo County valleys expected. Similar temperatures are
possible Friday morning.
* WHERE...Antelope Valley, San Luis Obispo County Interior Valleys,
and Southern Salinas Valley.
* WHEN...For the Freeze Warning, until 8 AM PST this morning. For
the Freeze Watch, from late tonight through Friday morning.
* IMPACTS...Frost and freeze conditions could kill crops, other
sensitive vegetation and possibly damage unprotected outdoor
plumbing.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Take steps now to protect tender plants from the cold.
&&
$$
Cold Weather Advisory
URGENT - WEATHER MESSAGE
National Weather Service San Francisco CA
742 AM PST Thu Dec 4 2025
CAZ506-041645-
/O.EXP.KMTR.CW.Y.0001.000000T0000Z-251204T1600Z/
North Bay Interior Valleys-
742 AM PST Thu Dec 4 2025
...COLD WEATHER ADVISORY WILL EXPIRE AT 8 AM PST THIS MORNING...
Temperatures are rising above Cold Weather Advisory criteria.
Therefore, the Cold Weather Advisory will be allowed to expire.
However, the coldest locations may see temperatures below 36 degrees
continue for a couple more hours.
$$
URGENT - WEATHER MESSAGE
National Weather Service San Francisco CA
742 AM PST Thu Dec 4 2025
CAZ516-518-050000-
/O.CON.KMTR.CW.Y.0001.000000T0000Z-251205T1600Z/
Southern Salinas Valley/Arroyo Seco and Lake San Antonio-
Mountains of San Benito County And Interior Monterey County
including Pinnacles National Park-
742 AM PST Thu Dec 4 2025
...COLD WEATHER ADVISORY REMAINS IN EFFECT UNTIL 8 AM PST FRIDAY...
* WHAT...Very cold conditions with temperatures 33 to 36 degrees and
locally to the upper 20s in higher elevations.
* WHERE...Interior portions of San Benito County and the Cholame
Hills in Southeast Monterey County, and Southern Salinas
Valley/Arroyo Seco and Lake San Antonio.
* WHEN...Until 8 AM PST Friday.
* IMPACTS...Cold conditions will be hazardous to sensitive
populations such as unhoused individuals. Prolonged exposure to the
cold conditions will lead to hypothermia for people, pets, and
livestock. Cold conditions may damage or kill sensitive crops,
plants, and vegetation if appropriate precautions are not taken.
* ADDITIONAL DETAILS...The coldest temperatures will occur each night
from Midnight to 8 AM.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Ensure portable heaters are working properly and are used correctly
to avoid sparking a fire indoors. Do not use generators or grills
inside as carbon monoxide poisoning can result.
Check with your city or county officials for information on the
nearest warming center.
Be sure to dress in layers if outdoors. Make sure that pets and
livestock have adequate food, unfrozen water, and warmth. Cover or
tend to sensitive crops, plants, and vegetation.
&&
$$
DialH
URGENT - WEATHER MESSAGE
National Weather Service Hanford CA
319 AM PST Thu Dec 4 2025
CAZ323-326>328-330-331-041700-
/O.CON.KHNX.CW.Y.0001.000000T0000Z-251204T1700Z/
Yosemite NP outside of the valley-Upper San Joaquin River-Kaiser
to Rodgers Ridge-Kings Canyon NP-Sequoia NP-South End of the
Upper Sierra-
Including the cities of Wawona, Huntington Lake, Lake Thomas
Edison, Cedar Grove, Tuolumne Meadows, Shaver Lake, Lodgepole,
Giant Forest, Florence Lake, Lake Wishon, Johnsondale, and Devils
Postpile
319 AM PST Thu Dec 4 2025
...COLD WEATHER ADVISORY REMAINS IN EFFECT UNTIL 9 AM PST THIS
MORNING FOR ELEVATIONS ABOVE 9000 FEET...
* WHAT...Very cold wind chills as low as 1 below for elevations
above 9000 feet.
* WHERE...Kaiser to Rodgers Ridge, Kings Canyon NP, Sequoia NP,
South End of the Upper Sierra, Upper San Joaquin River, and
Yosemite NP outside of the valley.
* WHEN...Until 9 AM PST this morning.
* IMPACTS...Very cold temperatures can lead to hypothermia with
prolonged exposure.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Use caution while traveling outside. Wear appropriate clothing, a
hat, and gloves.
&&
$$
CM
Coastal Flood Advisory
Coastal Hazard Message
National Weather Service San Francisco CA
504 AM PST Thu Dec 4 2025
CAZ006-506-508-529-530-050500-
/O.CON.KMTR.CF.Y.0016.000000T0000Z-251207T2300Z/
San Francisco-North Bay Interior Valleys-
San Francisco Bay Shoreline-Northern Monterey Bay-
Southern Monterey Bay and Big Sur Coast-
504 AM PST Thu Dec 4 2025
...COASTAL FLOOD ADVISORY REMAINS IN EFFECT UNTIL 3 PM PST
SUNDAY...
* WHAT...Up to 1.4 ft of inundation above ground level is
possible in low lying areas near shorelines and tidal
waterways.
* WHERE...Bayshore locations along San Francisco and Monterey
Bay.
* WHEN...Until 3 PM PST Sunday.
* IMPACTS...Flooding of lots, parks, and roads with only
isolated road closures expected.
* ADDITIONAL DETAILS...For the Coastal Flood Advisory, at the
San Francisco tidal gauge high tide is expected to be 1.2 ft
above normal (7.00 ft MLLW) at 9:04 AM Wednesday, 1.4 ft above
normal (7.20 ft MLLW) at 9:48 AM Thursday, 1.4 ft above normal
(7.23 ft MLLW) at 10:35 AM Friday, 1.2 ft above normal (7.08
ft MLLW) at 11:25 AM Saturday, and 0.9 ft above normal (6.75
ft MLLW) at 12:17 PM Sunday. High tide timing varies up to 90
minutes earlier or later along the Pacific Coast and
throughout 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.
&&
$$
Small Craft Advisory
URGENT - MARINE WEATHER MESSAGE
National Weather Service Eureka CA
429 AM PST Thu Dec 4 2025
PZZ475-042030-
/O.CON.KEKA.SC.Y.0131.000000T0000Z-251205T2200Z/
Cape Mendocino to Pt Arena 10 to 60 nm-
429 AM PST Thu Dec 4 2025
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 2 PM PST FRIDAY...
* WHAT...North winds 10 to 20 kt with gusts up to 30 kt and seas
6 to 9 feet.
* WHERE...Cape Mendocino to Pt Arena 10 to 60 nm.
* WHEN...Until 2 PM PST Friday.
* IMPACTS...Conditions will be hazardous to small craft.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.
&&
$$
URGENT - MARINE WEATHER MESSAGE
National Weather Service San Francisco Bay Area
213 AM PST Thu Dec 4 2025
PZZ540-041815-
/O.EXB.KMTR.SC.Y.0212.251205T1700Z-251206T1100Z/
Coastal Waters from Point Arena to Point Reyes California out to
10 NM-
213 AM PST Thu Dec 4 2025
...SMALL CRAFT ADVISORY IN EFFECT FROM 9 AM FRIDAY TO 3 AM PST
SATURDAY...
* WHAT...Northwest winds 10 to 20 kt with gusts up to 30 kt
expected.
* WHERE...Coastal Waters from Point Arena to Point Reyes
California out to 10 NM.
* WHEN...From 9 AM Friday to 3 AM PST Saturday.
* IMPACTS...Conditions will be hazardous to small craft.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.
&&
$$
URGENT - MARINE WEATHER MESSAGE
National Weather Service San Francisco Bay Area
213 AM PST Thu Dec 4 2025
PZZ570-041815-
/O.EXT.KMTR.SC.Y.0212.251205T0500Z-251206T1100Z/
Waters from Point Arena to Point Reyes 10-60 NM-
213 AM PST Thu Dec 4 2025
...SMALL CRAFT ADVISORY NOW IN EFFECT FROM 9 PM THIS EVENING TO
3 AM PST SATURDAY...
* WHAT...Northwest winds 15 to 25 kt with gusts up to 30 kt
expected.
* WHERE...Waters from Point Arena to Point Reyes 10-60 NM.
* WHEN...From 9 PM this evening to 3 AM PST Saturday.
* IMPACTS...Conditions will be hazardous to small craft.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.
&&
$$
URGENT - MARINE WEATHER MESSAGE
National Weather Service San Francisco Bay Area
213 AM PST Thu Dec 4 2025
PZZ571-041815-
/O.EXT.KMTR.SC.Y.0212.251205T0500Z-251206T1100Z/
Waters from Point Reyes to Pigeon Point 10-60 NM-
213 AM PST Thu Dec 4 2025
...SMALL CRAFT ADVISORY NOW IN EFFECT FROM 9 PM THIS EVENING TO
3 AM PST SATURDAY...
* WHAT...Northwest winds 15 to 25 kt with gusts up to 30 kt
expected.
* WHERE...Waters from Point Reyes to Pigeon Point 10-60 NM.
* WHEN...From 9 PM this evening to 3 AM PST Saturday.
* IMPACTS...Conditions will be hazardous to small craft.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.
&&
$$
For more information from the National Weather Service visit
http://weather.gov/sanfrancisco
URGENT - MARINE WEATHER MESSAGE
National Weather Service San Francisco Bay Area
213 AM PST Thu Dec 4 2025
PZZ575-041815-
/O.EXB.KMTR.SC.Y.0212.251205T1100Z-251206T1100Z/
Waters from Pigeon Point to Point Pinos 10-60 NM-
213 AM PST Thu Dec 4 2025
...SMALL CRAFT ADVISORY IN EFFECT FROM 3 AM FRIDAY TO 3 AM PST
SATURDAY...
* WHAT...North winds 15 to 25 kt with gusts up to 30 kt expected.
* WHERE...Waters from Pigeon Point to Point Pinos 10-60 NM.
* WHEN...From 3 AM Friday to 3 AM PST Saturday.
* IMPACTS...Conditions will be hazardous to small craft.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.
&&
$$
URGENT - MARINE WEATHER MESSAGE
National Weather Service San Francisco Bay Area
213 AM PST Thu Dec 4 2025
PZZ576-041815-
/O.EXB.KMTR.SC.Y.0212.251205T1700Z-251206T1100Z/
Waters from Point Pinos to Point Piedras Blancas 10-60 NM-
213 AM PST Thu Dec 4 2025
...SMALL CRAFT ADVISORY IN EFFECT FROM 9 AM FRIDAY TO 3 AM PST
SATURDAY...
* WHAT...Northwest winds 15 to 20 kt with gusts up to 30 kt
expected.
* WHERE...Waters from Point Pinos to Point Piedras Blancas 10-
60 NM.
* WHEN...From 9 AM Friday to 3 AM PST Saturday.
* IMPACTS...Conditions will be hazardous to small craft.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.
&&
$$
Frost Advisory
URGENT - WEATHER MESSAGE
National Weather Service Eureka CA
600 AM PST Thu Dec 4 2025
CAZ102>106-109-112-113-041700-
/O.CON.KEKA.FR.Y.0038.000000T0000Z-251204T1700Z/
Del Norte Interior-Northern Humboldt Coast-Southwestern Humboldt-
Northern Humboldt Interior-Southern Humboldt Interior-Mendocino
Coast-Southwestern Mendocino Interior-Southeastern Mendocino
Interior-
Including Whitethorn, Briceland, Ukiah, Ettersburg, Philo, Dinsmore,
Yorkville, Redwood Valley, Talmage, Hopland, and Calpella
600 AM PST Thu Dec 4 2025
...FROST ADVISORY REMAINS IN EFFECT UNTIL 9 AM PST THIS MORNING...
* WHAT...Temperatures as low as 34 will result in frost formation.
* WHERE...Humboldt County, Southern Mendocino Interior, Del Norte
Interior, and Mendocino Coast.
* WHEN...Until 9 AM PST this morning.
* IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive
outdoor plants may be killed if left uncovered.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Take steps now to protect tender plants from the cold.
&&
$$
For hazard areas see https://www.wrh.noaa.gov/map/?wfo=eka
JHW
Freeze Watch
URGENT - WEATHER MESSAGE
National Weather Service Los Angeles/Oxnard CA
131 AM PST Thu Dec 4 2025
CAZ343-344-383-042145-
/O.NEW.KLOX.FZ.A.0005.251205T1000Z-251205T1600Z/
/O.CON.KLOX.FZ.W.0015.000000T0000Z-251204T1600Z/
Southern Salinas Valley-San Luis Obispo County Interior Valleys-
Antelope Valley-
Including the cities of Atascadero, Creston, Templeton, Paso
Robles, Shandon, Palmdale, Carrizo Plain, San Miguel, Lancaster,
Lake Los Angeles, and Lake Nacimiento
131 AM PST Thu Dec 4 2025
...FREEZE WARNING REMAINS IN EFFECT UNTIL 8 AM PST THIS MORNING...
...FREEZE WATCH IN EFFECT FROM LATE TONIGHT THROUGH FRIDAY MORNING...
* WHAT...Sub-freezing temperatures as low as 25 in the Antelope
Valley, and as low as 28 in the Salinas Valley and interior San
Luis Obispo County valleys expected. Similar temperatures are
possible Friday morning.
* WHERE...Antelope Valley, San Luis Obispo County Interior Valleys,
and Southern Salinas Valley.
* WHEN...For the Freeze Warning, until 8 AM PST this morning. For
the Freeze Watch, from late tonight through Friday morning.
* IMPACTS...Frost and freeze conditions could kill crops, other
sensitive vegetation and possibly damage unprotected outdoor
plumbing.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Take steps now to protect tender plants from the cold.
&&
$$
