Heat Advisory
URGENT - WEATHER MESSAGE
National Weather Service Sacramento CA
1030 AM PDT Mon Sep 7 2026
CAZ129-131-134-137-142-144>146-148>164-082300-
/O.NEW.KSTO.HT.Y.0005.260909T1700Z-260911T0500Z/
Sierra (Tehama-Plumas) 1000-3000 ft-N. Motherlode 1000-3000 ft-
Central Motherlode 1000-3000 ft-Southern Motherlode 1000-3000 ft-
N. Sac Valley in Tehama County-Central Glenn Co & Interstate 5-
Eastern Glenn County-Butte County Below 1000 ft-Central Colusa
County Incl. I-5-Eastern Colusa County-Sutter/Yuba counties below
1000 ft-Yolo / Solano County Hills-W. Yolo County including
Capay/I-505-C. Yolo/NE Solano including Woodland-Sac Metro/W. El
Dorado/Amador County-C. Solano County including Fairfield-SW
Solano County including Vallejo-Sacramento County Delta-San
Joaquin County Delta-C. San Joaquin County including Stockton-
Tracy Triangle Below 1000 ft-NE San Joaquin Valley Below 1000 ft-
E. Diablo Range Above 1000 ft-W. Stanislaus County Above 1000 ft
& I-5-C. Stanislaus County including Modesto-
Including the cities of Auburn, Grass Valley, Colfax, Nevada City,
Cameron Park, Shingle Springs, Placerville, Cool, Jackson, Stockton,
Lodi, Esparto, Winters, Vallejo, Benicia, Red Bluff, Woodland, Dixon,
Tracy, Fairfield, Vacaville, Yuba City, Beale AFB, Paradise, Chico,
Oroville, Gridley, Modesto, Turlock, Willows, Orland, Sonora, Angels
Camp, Lincoln, Roseville, Sacramento, Elk Grove, Folsom, Walnut
Grove, Colusa, and Williams
1030 AM PDT Mon Sep 7 2026
...HEAT ADVISORY IN EFFECT FROM 10 AM WEDNESDAY TO 10 PM PDT
THURSDAY...
* WHAT...High temperatures 97 to 102 and low temperatures 65 to 75
expected, with widespread Moderate HeatRisk and areas of Major
HeatRisk.
* WHERE...The central and southern Sacramento Valley, northern San
Joaquin Valley, Delta and Carquinez Strait, Foothills, and portions
of the Coast Range.
* WHEN...From 10 AM Wednesday to 10 PM PDT Thursday.
* IMPACTS...Hot temperatures may cause heat illnesses, especially to
anyone without effective cooling and/or adequate hydration.
* ADDITIONAL DETAILS...Hottest temperatures and areas of Major
HeatRisk are expected to occur on Thursday. Warmest overnight lows
are expected in the Sierra foothills thermal belts.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Drink plenty of fluids, stay in an air-conditioned room, stay out of
the sun, and check up on relatives and neighbors.
&&
$$
For more information, visit us at www.weather.gov/sto/
NR
URGENT - WEATHER MESSAGE
National Weather Service San Francisco CA
1027 AM PDT Mon Sep 7 2026
CAZ006-502>506-508>510-512>518-528>530-091700-
/O.NEW.KMTR.HT.Y.0013.260909T1700Z-260911T0500Z/
San Francisco-Marin Coastal Range-Sonoma Coastal Range-North Bay
Interior Mountains-Coastal North Bay Including Point Reyes
National Seashore-North Bay Interior Valleys-San Francisco Bay
Shoreline-San Francisco Peninsula Coast-East Bay Interior Valleys-
Santa Cruz Mountains-Santa Clara Valley Including San Jose-
Eastern Santa Clara Hills-East Bay Hills-Southern Salinas
Valley/Arroyo Seco and Lake San Antonio-Santa Lucia Mountains and
Los Padres National Forest-Mountains of San Benito County And
Interior Monterey County including Pinnacles National Park-
Northern Salinas Valley/Hollister Valley and Carmel Valley-
Northern Monterey Bay-Southern Monterey Bay and Big Sur Coast-
1027 AM PDT Mon Sep 7 2026
...HEAT ADVISORY IN EFFECT FROM 10 AM WEDNESDAY TO 10 PM PDT
THURSDAY...
* WHAT...Hot conditions with temperatures 10 to 20 degrees above
normal.
* WHERE...Bay Area and Central Coast.
* WHEN...From 10 AM Wednesday to 10 PM PDT Thursday.
* IMPACTS...This level of heat affects most individuals sensitive to
heat, especially those without effective cooling and/or adequate
hydration. Impacts possible in some health systems and in
heat-sensitive industries. Hot conditions can cause heat illnesses.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Hydration is a critical piece to surviving the heat. Drink water, and
if possible, take water to those who are vulnerable.
Take extra precautions when outside. Wear lightweight and loose
fitting clothing. Try to limit strenuous activities to the early
morning or evening. Take action when you experience symptoms of heat
exhaustion and/or heat stroke.
Beat the heat and check the backseat! Do not leave young children or
pets in unattended vehicles. Car interiors will reach lethal
temperatures in a matter of minutes.
&&
$$
Sarment
Small Craft Advisory
URGENT - MARINE WEATHER MESSAGE
National Weather Service Eureka CA
544 AM PDT Tue Sep 8 2026
PZZ470-082045-
/O.CON.KEKA.SC.Y.0080.000000T0000Z-260909T1300Z/
Waters from Pt. St. George to Cape Mendocino CA from 10 to 60 nm-
544 AM PDT Tue Sep 8 2026
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 6 AM PDT
WEDNESDAY...
* WHAT...North winds 15 to 25 kt with gusts up to 30 kt and seas
6 to 9 feet.
* WHERE...Waters from Pt. St. George to Cape Mendocino CA from
10 to 60 nm.
* WHEN...Until 6 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.
&&
$$
URGENT - MARINE WEATHER MESSAGE
National Weather Service Eureka CA
544 AM PDT Tue Sep 8 2026
PZZ475-082045-
/O.CON.KEKA.SC.Y.0080.000000T0000Z-260909T0100Z/
Waters from Cape Mendocino to Pt. Arena CA from 10 to 60 nm-
544 AM PDT Tue Sep 8 2026
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 6 PM PDT THIS
EVENING...
* WHAT...North winds 10 to 20 kt with gusts up to 30 kt and seas
6 to 9 feet.
* WHERE...Waters from Cape Mendocino to Pt. Arena CA from 10 to
60 nm.
* WHEN...Until 6 PM PDT this evening.
* IMPACTS...Conditions will be hazardous to small craft.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.
&&
$$
URGENT - MARINE WEATHER MESSAGE
National Weather Service Medford OR
1200 AM PDT Tue Sep 8 2026
PZZ350-356-370-082130-
/O.CON.KMFR.SC.Y.0073.000000T0000Z-260909T1200Z/
Coastal waters from Florence to Cape Blanco OR out 10 nm-
Coastal waters from Cape Blanco OR to Pt. St. George CA out 10 nm-
Waters from Florence to Cape Blanco OR from 10 to 60 nm-
1200 AM PDT Tue Sep 8 2026
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 5 AM PDT
WEDNESDAY...
* WHAT...North winds 15 to 25 kt with gusts up to 30 kt and seas 5
to 8 ft at 6 seconds for areas north of Cape Blanco. For areas
south of Cape Blanco within 10 nm of shore, north winds 20 to 30
kt with occasional gusts to 35 kt and steep seas 6 to 9 feet at
7 to 8 seconds.
* WHERE...South of Cape Arago through Tuesday morning, then all
of the area into Wednesday morning.
* WHEN...From 11 PM this evening to 5 AM PDT Wednesday.
* 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.
&&
$$
Visit us at https://www.weather.gov/Medford
URGENT - MARINE WEATHER MESSAGE
National Weather Service Medford OR
1200 AM PDT Tue Sep 8 2026
PZZ376-082130-
/O.EXT.KMFR.SC.Y.0073.000000T0000Z-260909T0000Z/
/O.NEW.KMFR.SE.W.0032.260909T0000Z-260909T1200Z/
Waters from Cape Blanco OR to Pt. St. George CA from 10 to 60 nm-
1200 AM PDT Tue Sep 8 2026
...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 5 PM PDT TUESDAY...
...HAZARDOUS SEAS WARNING IN EFFECT FROM 5 PM TUESDAY TO 5 AM PDT
WEDNESDAY...
* WHAT...For the Small Craft Advisory, north winds 20 to 30 kt and
seas 6 to 9 ft at 7 seconds. For the Hazardous Seas Warning,
north winds 20 to 30 kt with occasional gusts to 35 kt and very
steep and hazardous seas 8 to 11 ft at 8 seconds expected.
* WHERE...All the area. Steepest seas will occur Tuesday evening
and night beyond 10 nm from shore south of Port Orford.
* WHEN...For the Small Craft Advisory, until 5 PM PDT Tuesday.
For the Hazardous Seas Warning, from 5 PM Tuesday to 5 AM PDT
Wednesday.
* IMPACTS...Very steep and hazardous seas could capsize or
damage vessels. Bar crossings will become especially
treacherous.
* View the hazard area in detail at https://go.usa.gov/x6hks
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Recreational boaters should remain in port. Commercial vessels
should prepare for very steep seas and consider remaining in port
until conditions improve.
&&
$$
Hazardous Seas Warning
URGENT - MARINE WEATHER MESSAGE
National Weather Service Medford OR
1200 AM PDT Tue Sep 8 2026
PZZ376-082130-
/O.EXT.KMFR.SC.Y.0073.000000T0000Z-260909T0000Z/
/O.NEW.KMFR.SE.W.0032.260909T0000Z-260909T1200Z/
Waters from Cape Blanco OR to Pt. St. George CA from 10 to 60 nm-
1200 AM PDT Tue Sep 8 2026
...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 5 PM PDT TUESDAY...
...HAZARDOUS SEAS WARNING IN EFFECT FROM 5 PM TUESDAY TO 5 AM PDT
WEDNESDAY...
* WHAT...For the Small Craft Advisory, north winds 20 to 30 kt and
seas 6 to 9 ft at 7 seconds. For the Hazardous Seas Warning,
north winds 20 to 30 kt with occasional gusts to 35 kt and very
steep and hazardous seas 8 to 11 ft at 8 seconds expected.
* WHERE...All the area. Steepest seas will occur Tuesday evening
and night beyond 10 nm from shore south of Port Orford.
* WHEN...For the Small Craft Advisory, until 5 PM PDT Tuesday.
For the Hazardous Seas Warning, from 5 PM Tuesday to 5 AM PDT
Wednesday.
* IMPACTS...Very steep and hazardous seas could capsize or
damage vessels. Bar crossings will become especially
treacherous.
* View the hazard area in detail at https://go.usa.gov/x6hks
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Recreational boaters should remain in port. Commercial vessels
should prepare for very steep seas and consider remaining in port
until conditions improve.
&&
$$
Frost Advisory
URGENT - WEATHER MESSAGE
National Weather Service Medford OR
1106 AM PDT Mon Sep 7 2026
CAZ085-ORZ029>031-080915-
/O.NEW.KMFR.FR.Y.0009.260908T1000Z-260908T1600Z/
Modoc County-Klamath Basin-Northern and Eastern Klamath County
and Western Lake County-Central and Eastern Lake County-
Including the cities of Olene, Midland, Sprague River, Chemult,
Canby, Lookout, Bly, Gilchrist, Alturas, Crescent, Davis Creek, Fort
Rock, and Beatty
1106 AM PDT Mon Sep 7 2026
...FROST ADVISORY IN EFFECT FROM 3 AM TO 9 AM PDT TUESDAY...
* WHAT...Widespread frost conditions, with local areas of
sub-freezing temperatures as low as 31 degrees
* WHERE...In California, valleys and basins in Modoc County. In
Oregon, valleys and basins in Lake and Klamath counties. This
includes the communities of Crescent, Chemult, Fort Rock and the
rest of the Christmas Valley, Chiloquin, Sprague River, Bly, cities
in the Klamath Basin, areas east of Lakeview, Canby, and Alturas.
* WHEN...From 3 AM to 9 AM PDT Tuesday.
* IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive
outdoor plants may be killed if left uncovered. Animals not
acclimated to these conditions may be harmed if left outside for
extended periods.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Take steps now to protect tender plants and sensitive animals from
the cold.
&&
$$
TAD
