Heat Advisory
URGENT - WEATHER MESSAGE
National Weather Service Hanford CA
352 AM PDT Mon May 11 2026
CAZ300>317-319-321-332-111900-
/O.CON.KHNX.HT.Y.0001.260511T1800Z-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 Taft, Corcoran, Alpaugh, Arvin, Lamont,
Lake Mcclure, Delano, Goshen, Merced, Kernville, Kettleman City,
Bakersfield, Richgrove, Avenal, Lake Isabella, El Portal, Lost
Hills, Le Grand, Planada, Visalia, Wasco, Porterville, Selma,
Hanford, Kingsburg, Atwater, Los Banos, Mariposa, Five Points,
Madera, Millerton Lake, Blackwells Corner, Sanger, Fresno,
Buttonwillow, Shafter, McKittrick, Coalinga, Tulare, Parlier,
Lemoore, Kerman, Lemoore Station, and San Luis Reservoir
352 AM PDT Mon May 11 2026
...HEAT ADVISORY REMAINS IN EFFECT FROM 11 AM THIS MORNING TO 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...From 11 AM this morning to 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.
&&
$$
JPK
URGENT - WEATHER MESSAGE
National Weather Service Sacramento CA
1027 AM PDT Sun May 10 2026
CAZ145-146-149-163-164-112300-
/O.CON.KSTO.HT.Y.0001.260511T1800Z-260513T0300Z/
Eastern Glenn County-Butte County Below 1000 ft-Eastern Colusa
County-W. Stanislaus County Above 1000 ft & I-5-C. Stanislaus
County including Modesto-
Including the cities of Colusa, Chico, Oroville, Gridley,
Modesto, and Turlock
1027 AM PDT Sun May 10 2026
...HEAT ADVISORY REMAINS IN EFFECT FROM 11 AM MONDAY TO 8 PM PDT
TUESDAY...
* WHAT...Temperatures up to 95 to 100 expected with widespread
Moderate HeatRisk.
* WHERE...Central and Western Stanislaus County including Modesto
and I-5, Butte County below 1000 ft, Eastern Colusa County, and
Eastern Glenn County.
* WHEN...From 11 AM Monday to 8 PM PDT Tuesday.
* IMPACTS...Hot temperatures may cause heat illnesses, especially
for those more sensitive to heat.
* ADDITIONAL DETAILS...Hot daytime temperatures will occur in other
Valley locations as well, though Delta influence will better
moderate low temperatures providing overnight relief.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Drink plenty of fluids, stay in an air-conditioned room, stay out of
the sun, and check up on relatives and neighbors.
&&
$$
For more information, visit us at www.weather.gov/sto/
SP
Small Craft Advisory
URGENT - MARINE WEATHER MESSAGE
National Weather Service San Francisco Bay Area
303 AM PDT Mon May 11 2026
PZZ530-111815-
/O.NEW.KMTR.SC.Y.0053.260512T2200Z-260513T0400Z/
San Pablo Bay, Suisun Bay, the West Delta and the San Francisco
Bay north of the Bay Bridge-
303 AM PDT Mon May 11 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM 3 PM TO 9 PM PDT TUESDAY...
* WHAT...Southwest winds 10 to 20 kt with gusts up to 30 kt and
choppy waters expected.
* 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.
&&
$$
URGENT - MARINE WEATHER MESSAGE
National Weather Service San Francisco Bay Area
303 AM PDT Mon May 11 2026
PZZ540-111815-
/O.EXP.KMTR.SC.Y.0051.000000T0000Z-260511T1000Z/
/O.NEW.KMTR.SC.Y.0053.260512T2200Z-260513T0400Z/
Coastal Waters from Point Arena to Point Reyes California out to
10 NM-
303 AM PDT Mon May 11 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM 3 PM TO 9 PM PDT TUESDAY...
...SMALL CRAFT ADVISORY HAS EXPIRED...
* WHAT...Northwest winds 15 to 25 kt with gusts up to 30 kt
expected.
* WHERE...Coastal Waters from Point Arena to Point Reyes
California out to 10 NM.
* WHEN...From 3 PM to 9 PM PDT Tuesday.
* IMPACTS...Conditions will be hazardous to small craft.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.
&&
$$
URGENT - MARINE WEATHER MESSAGE
National Weather Service San Francisco Bay Area
303 AM PDT Mon May 11 2026
PZZ571-111815-
/O.CON.KMTR.SC.Y.0051.000000T0000Z-260511T2200Z/
Waters from Point Reyes to Pigeon Point 10-60 NM-
303 AM PDT Mon May 11 2026
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 3 PM PDT THIS
AFTERNOON...
* WHAT...Northwest winds 15 to 25 kt with gusts up to 30 kt.
* WHERE...Waters from Point Reyes to Pigeon Point 10-60 NM.
* WHEN...Until 3 PM PDT this afternoon.
* IMPACTS...Conditions will be hazardous to small craft.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.
&&
$$
