Heat Advisory
URGENT - WEATHER MESSAGE
National Weather Service Sacramento CA
1259 PM PDT Mon May 11 2026
CAZ145-146-149-163-164-121200-
/O.CON.KSTO.HT.Y.0001.000000T0000Z-260513T0300Z/
Eastern Glenn County-Butte County Below 1000 ft-Eastern Colusa
County-W. Stanislaus County Above 1000 ft & I-5-C. Stanislaus
County including Modesto-
Including the cities of Chico, Oroville, Gridley, Colusa,
Modesto, and Turlock
1259 PM PDT Mon May 11 2026
...HEAT ADVISORY REMAINS IN EFFECT UNTIL 8 PM PDT TUESDAY...
* WHAT...Temperatures up to 95 to 100 expected with widespread
Moderate HeatRisk today.
* WHERE...Central and Western Stanislaus County including Modesto
and I-5, Butte County below 1000 ft, Eastern Colusa County, and
Eastern Glenn County.
* WHEN...Until 8 PM PDT Tuesday.
* IMPACTS...Hot temperatures may cause heat illnesses, especially
for those more sensitive to heat.
* ADDITIONAL DETAILS...Hot daytime temperatures will occur in other
Valley locations as well, though Delta influence will better
moderate low temperatures providing overnight relief.
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/
IDS
URGENT - WEATHER MESSAGE
National Weather Service Hanford CA
1142 AM PDT Mon May 11 2026
CAZ300>317-319-321-332-120300-
/O.CON.KHNX.HT.Y.0001.000000T0000Z-260513T0300Z/
West Side Mountains north of 198-Los Banos - Dos Palos-Merced -
Madera - Mendota-Planada - Le Grand - Snelling-Coalinga - Avenal-
West Side of Fresno and Kings Counties-Caruthers - San Joaquin -
Selma-Fresno-Clovis-West Side Mountains South of 198-Buttonwillow
- Lost Hills - I5-Delano-Wasco-Shafter-Hanford - Corcoran -
Lemoore-Visalia - Porterville - Reedley-Buena Vista-Bakersfield-
Southeast San Joaquin Valley-South End San Joaquin Valley-
Mariposa Madera Foothills-Fresno-Tulare Foothills-South End
Sierra Foothills-Kern River Valley-
Including the cities of Goshen, Arvin, Madera, Le Grand,
Kernville, Bakersfield, Sanger, McKittrick, Kerman, Lost Hills,
Corcoran, Mariposa, Lake Mcclure, El Portal, Taft, Visalia,
Kettleman City, Merced, Planada, Selma, Lamont, Alpaugh,
Porterville, Los Banos, Coalinga, Lake Isabella, Blackwells
Corner, Avenal, Lemoore, Lemoore Station, Kingsburg, Five Points,
Millerton Lake, Fresno, Parlier, Richgrove, Buttonwillow, Tulare,
Delano, Atwater, Hanford, Wasco, San Luis Reservoir, and Shafter
1142 AM PDT Mon May 11 2026
...HEAT ADVISORY REMAINS IN EFFECT UNTIL 8 PM PDT TUESDAY...
* WHAT...High temperatures up to 102 with widespread Moderate
HeatRisk expected. Areas of Major HeatRisk will impact portions of
the foothills and West Side Hills where the thermal belt exists
overnight and in urban areas including Fresno.
* WHERE...A portion of central California.
* WHEN...Until 8 PM PDT Tuesday.
* IMPACTS...Hot temperatures and high humidity may cause heat
illnesses.
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.
Take extra precautions when outside. Wear lightweight and loose
fitting clothing. Try to limit strenuous activities to early morning
or evening. Take action when you see symptoms of heat exhaustion and
heat stroke.
To reduce risk during outdoor work, the Occupational Safety and
Health Administration recommends scheduling frequent rest breaks in
shaded or air conditioned environments. Anyone overcome by heat
should be moved to a cool and shaded location. Heat stroke is an
emergency! Call 9 1 1.
&&
$$
EW
Small Craft Advisory
URGENT - MARINE WEATHER MESSAGE
National Weather Service San Francisco Bay Area
246 PM PDT Mon May 11 2026
PZZ530-120600-
/O.CON.KMTR.SC.Y.0053.260512T2200Z-260513T0400Z/
San Pablo Bay, Suisun Bay, the West Delta and the San Francisco
Bay north of the Bay Bridge-
246 PM PDT Mon May 11 2026
...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 3 PM TO 9 PM PDT
TUESDAY...
* WHAT...West to northwest winds gusting between 20 to 25 kts.
* WHERE...San Pablo Bay, Suisun Bay, the West Delta and the San
Francisco Bay north of the Bay Bridge.
* WHEN...From 3 PM to 9 PM PDT Tuesday.
* IMPACTS...Conditions will be hazardous to small craft.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.
&&
$$
For more information from the National Weather Service visit
http://weather.gov/sanfrancisco
URGENT - MARINE WEATHER MESSAGE
National Weather Service San Francisco Bay Area
246 PM PDT Mon May 11 2026
PZZ540-120600-
/O.CON.KMTR.SC.Y.0053.260512T2200Z-260513T0400Z/
Coastal Waters from Point Arena to Point Reyes California out to
10 NM-
246 PM PDT Mon May 11 2026
...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 3 PM TO 9 PM PDT
TUESDAY...
* WHAT...Northwest winds 15 to 25 kt with gusts up to 30 kt
expected.
* WHERE...Coastal Waters from Point Arena to Point Reyes
California out to 10 NM.
* WHEN...From 3 PM to 9 PM PDT Tuesday.
* IMPACTS...Conditions will be hazardous to small craft.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.
&&
$$
URGENT - MARINE WEATHER MESSAGE
National Weather Service San Francisco Bay Area
246 PM PDT Mon May 11 2026
PZZ570-112300-
/O.EXP.KMTR.SC.Y.0051.000000T0000Z-260511T2200Z/
Waters from Point Arena to Point Reyes 10-60 NM-
246 PM PDT Mon May 11 2026
...SMALL CRAFT ADVISORY WILL EXPIRE AT 3 PM PDT THIS AFTERNOON...
Conditions have dropped below advisory criteria, therefore the
Small Craft Advisory has been allowed to expire.
$$
URGENT - MARINE WEATHER MESSAGE
National Weather Service San Francisco Bay Area
246 PM PDT Mon May 11 2026
PZZ571-112300-
/O.EXP.KMTR.SC.Y.0051.000000T0000Z-260511T2200Z/
Waters from Point Reyes to Pigeon Point 10-60 NM-
246 PM PDT Mon May 11 2026
...SMALL CRAFT ADVISORY WILL EXPIRE AT 3 PM PDT THIS AFTERNOON...
Conditions have dropped below advisory criteria, therefore the
Small Craft Advisory has been allowed to expire.
$$
URGENT - MARINE WEATHER MESSAGE
National Weather Service Eureka CA
232 PM PDT Mon May 11 2026
PZZ455-120545-
/O.CON.KEKA.SC.Y.0046.000000T0000Z-260512T1000Z/
Coastal waters from Cape Mendocino to Pt. Arena CA out 10 nm-
232 PM PDT Mon May 11 2026
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 3 AM PDT
TUESDAY...
* WHAT...Northwest winds 10 to 20 kt with gusts up to 30 kt and
seas 7 to 9 feet.
* WHERE...Coastal waters from Cape Mendocino to Pt. Arena CA out
10 nm.
* WHEN...Until 3 AM PDT Tuesday.
* IMPACTS...Conditions will be hazardous to small craft.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.
&&
$$
URGENT - MARINE WEATHER MESSAGE
National Weather Service Eureka CA
232 PM PDT Mon May 11 2026
PZZ470-120400-
/O.CON.KEKA.SC.Y.0046.000000T0000Z-260512T0400Z/
Waters from Pt. St. George to Cape Mendocino CA from 10 to 60 nm-
232 PM PDT Mon May 11 2026
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 9 PM PDT THIS
EVENING...
* WHAT...North winds 15 to 25 kt with gusts up to 30 kt and seas
7 to 9 feet.
* WHERE...Waters from Pt. St. George to Cape Mendocino CA from
10 to 60 nm.
* WHEN...Until 9 PM PDT this evening.
* IMPACTS...Conditions will be hazardous to small craft.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.
&&
$$
URGENT - MARINE WEATHER MESSAGE
National Weather Service Eureka CA
232 PM PDT Mon May 11 2026
PZZ475-120545-
/O.CON.KEKA.SC.Y.0046.000000T0000Z-260512T1200Z/
Waters from Cape Mendocino to Pt. Arena CA from 10 to 60 nm-
232 PM PDT Mon May 11 2026
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 5 AM PDT
TUESDAY...
* WHAT...Northwest winds 15 to 25 kt with gusts up to 30 kt and
seas 8 to 11 feet.
* WHERE...Waters from Cape Mendocino to Pt. Arena CA from 10 to
60 nm.
* WHEN...Until 5 AM PDT Tuesday.
* IMPACTS...Conditions will be hazardous to small craft.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.
&&
$$
Lake Wind Advisory
URGENT - WEATHER MESSAGE
National Weather Service Reno NV
1251 PM PDT Mon May 11 2026
CAZ071-130300-
/O.NEW.KREV.LW.Y.0012.260512T1800Z-260513T0300Z/
Lassen-Eastern Plumas-Eastern Sierra Counties-
Including the cities of Loyalton, Westwood, Portola, Sierraville,
and Susanville
1251 PM PDT Mon May 11 2026
...LAKE WIND ADVISORY IN EFFECT FROM 11 AM TO 8 PM PDT TUESDAY FOR
STAMPEDE RESERVOIR, LAKE DAVIS, ANTELOPE LAKE, AND EAGLE LAKE...
* WHAT...Southwest winds 10 to 20 mph with gusts up to 35 mph for
Stampede Reservoir, Lake Davis, Antelope Lake, and Eagle Lake.
* WHERE...Lassen-Eastern Plumas-Eastern Sierra Counties.
* WHEN...From 11 AM to 8 PM PDT Tuesday.
* IMPACTS...Small boats, kayaks and paddle boards will be prone to
capsizing and should remain off lake waters until conditions
improve.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Check lake conditions before heading out and be prepared for a
sudden increase in winds and wave heights. Consider postponing
boating activities on the lake until a day with less wind.
&&
$$
TS
