Heat Advisory
URGENT - WEATHER MESSAGE
National Weather Service Sacramento CA
152 PM PDT Fri May 30 2025
CAZ013-015>019-063-066-067-312300-
/O.CON.KSTO.HT.Y.0001.000000T0000Z-250601T0600Z/
Shasta Lake Area / Northern Shasta County-Northern Sacramento
Valley-Central Sacramento Valley-Southern Sacramento Valley-
Carquinez Strait and Delta-Northern San Joaquin Valley-Mountains
Southwestern Shasta County to Western Colusa County-Northeast
Foothills/Sacramento Valley-Motherlode-
Including the cities of Chico, Red Bluff, Jackson, Shasta Dam,
Stockton, Paradise, Sacramento, Oroville, Alder Springs, Grass
Valley, Redding, Marysville/Yuba City, Modesto, and
Fairfield/Suisun
152 PM PDT Fri May 30 2025
...HEAT ADVISORY REMAINS IN EFFECT UNTIL 11 PM PDT SATURDAY...
* WHAT...Dangerously hot conditions with temperatures 99 to 107 and
widespread Major HeatRisk expected. Limited overnight relief with
low temperatures in the mid 60s to mid 70s.
* WHERE...Carquinez Strait and Delta, Central Sacramento Valley,
Motherlode, Mountains Southwestern Shasta County to Western Colusa
County, Northeast Foothills/Sacramento Valley, Northern Sacramento
Valley, Northern San Joaquin Valley, Shasta Lake Area / Northern
Shasta County, and Southern Sacramento Valley.
* WHEN...Until 11 PM PDT Saturday.
* IMPACTS...Heat related illnesses increase significantly during
extreme heat events, particularly for those working or
participating in outdoor activities.
* ADDITIONAL DETAILS...Area waterways continue to run cold and fast,
creating dangerous conditions for those seeking relief in rivers
and lakes.
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.
Do not leave young children and pets in unattended vehicles. Car
interiors will reach lethal temperatures in a matter of minutes.
&&
$$
For more information, visit us at www.weather.gov/sto/
EK
URGENT - WEATHER MESSAGE
National Weather Service Hanford CA
239 PM PDT Fri May 30 2025
CAZ300>321-324-332-310600-
/O.CON.KHNX.HT.Y.0001.000000T0000Z-250601T1400Z/
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-Mariposa-Madera Lower Sierra-Fresno-
Tulare Foothills-Fresno-Tulare Lower Sierra-South End Sierra
Foothills-Yosemite Valley-Kern River Valley-
Including the cities of Corcoran, Parlier, Selma, Hanford,
Auberry, Kernville, Alpaugh, Kettleman City, Buttonwillow,
McKittrick, Delano, Lake Isabella, Merced, Coalinga, Wasco,
Fresno, Los Banos, Le Grand, Blackwells Corner, Visalia, Planada,
North Fork, Five Points, Mariposa, Oakhurst, Richgrove, Fish
Camp, Tulare, Avenal, Lemoore Station, Atwater, Bass Lake, Lake
Mcclure, Goshen, Lamont, El Portal, Madera, Lemoore, Kingsburg,
Taft, Shafter, Lost Hills, Coarsegold, Yosemite Valley, Kerman,
Porterville, Bakersfield, Millerton Lake, San Luis Reservoir,
Arvin, and Sanger
239 PM PDT Fri May 30 2025
...HEAT ADVISORY REMAINS IN EFFECT UNTIL 7 AM PDT SUNDAY...
* WHAT...High temperatures up to 105 expected.
* WHERE...A portion of central California.
* WHEN...Until 7 AM PDT Sunday.
* IMPACTS...Moderate to Major risk for heat-related illnesses,
especially for those sensitive to heat.
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.
Monitor the latest forecasts and warnings for updates.
&&
$$
JPK
URGENT - WEATHER MESSAGE
National Weather Service Reno NV
149 PM PDT Fri May 30 2025
NVZ001-004-010200-
/O.NEW.KREV.HT.Y.0001.250531T1800Z-250601T0200Z/
Western Nevada Basin and Range including Pyramid Lake-Mineral and
Southern Lyon Counties-
Including the cities of Lovelock, Silver Springs, Schurz, Mina,
Hawthorne, Fallon, Fernley, Nixon, Yerington, Smith Valley, and
Imlay
149 PM PDT Fri May 30 2025
...HEAT ADVISORY IN EFFECT FROM 11 AM TO 7 PM PDT SATURDAY...
* WHAT...Temperatures between 100 and 103 degrees with widespread
Moderate HeatRisk and isolated Major HeatRisk.
* WHERE...Western Nevada Basin and Range including Pyramid Lake and
Mineral and Southern Lyon Counties.
* WHEN...From 11 AM to 7 PM PDT Saturday.
* IMPACTS...Hot temperatures 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.
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.
&&
$$
GG
URGENT - WEATHER MESSAGE
National Weather Service San Francisco CA
1231 PM PDT Fri May 30 2025
CAZ504-510-516>518-310400-
/O.NEW.KMTR.HT.Y.0003.250531T1800Z-250601T0300Z/
/O.CON.KMTR.HT.Y.0002.000000T0000Z-250531T0300Z/
North Bay Interior Mountains-East Bay Interior Valleys-Southern
Salinas Valley/Arroyo Seco and Lake San Antonio-Santa Lucia
Mountains and Los Padres National Forest-Mountains of San Benito
County And Interior Monterey County including Pinnacles National
Park-
1231 PM PDT Fri May 30 2025
...HEAT ADVISORY IN EFFECT FROM 11 AM TO 8 PM PDT SATURDAY...
...HEAT ADVISORY REMAINS IN EFFECT UNTIL 8 PM PDT THIS EVENING...
* WHAT...Temperatures in the 90s to 105 degrees.
* WHERE...Interior Monterey County and the Santa Lucia Range, Most
of San Benito County and the Cholame Hills in Southeast Monterey
County, North Bay Interior Mountains, East Bay Interior Valleys,
and Southern Salinas Valley/Arroyo Seco and Lake San Antonio.
* WHEN...For the first Heat Advisory, until 8 PM PDT this evening.
For the second Heat Advisory, from 11 AM to 8 PM PDT Saturday.
* IMPACTS...This level of heat affects most individuals sensitive to
heat, especially those without effective cooling and/or adequate
hydration. Impacts possible in some health systems and in
heat-sensitive industries. Hot conditions can cause heat illnesses.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Hydration is a critical piece to surviving the heat. Drink water,
and if possible, take water to those who are vulnerable.
Take extra precautions when outside. Wear lightweight and loose
fitting clothing. Try to limit strenuous activities to the early
morning or evening. Take action when you experience symptoms of heat
exhaustion and/or heat stroke.
Beat the heat and check the backseat! Do not leave young children or
pets in unattended vehicles.Car interiors will reach lethal
temperatures in a matter of minutes.
Stay cool, stay hydrated, stay informed.
&&
$$
URGENT - WEATHER MESSAGE
National Weather Service San Francisco CA
1231 PM PDT Fri May 30 2025
CAZ506-512>515-528-310300-
/O.CON.KMTR.HT.Y.0002.000000T0000Z-250531T0300Z/
North Bay Interior Valleys-Santa Cruz Mountains-Santa Clara
Valley Including San Jose-Eastern Santa Clara Hills-East Bay
Hills-Northern Salinas Valley/Hollister Valley and Carmel Valley-
1231 PM PDT Fri May 30 2025
...HEAT ADVISORY REMAINS IN EFFECT UNTIL 8 PM PDT THIS EVENING...
* WHAT...Temperatures in the 90s to near 100 degrees.
* WHERE...The Santa Clara Valley and Eastern Hills, The Santa Cruz
Mountains, North Bay Interior Valleys, East Bay Hills, and
Northern Salinas Valley/Hollister Valley and Carmel Valley.
* WHEN...Until 8 PM PDT this evening.
* 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.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
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.
Stay cool, stay hydrated, stay informed.
&&
$$
MM
URGENT - WEATHER MESSAGE
National Weather Service Eureka CA
1147 AM PDT Fri May 30 2025
CAZ105-106-310400-
/O.CON.KEKA.HT.Y.0001.000000T0000Z-250531T0400Z/
Northern Humboldt Interior-Southern Humboldt Interior-
Including Hoopa, Dinsmore, Shively, Benbow, Weitchpec, Bull
Creek, Bridgeville, Garberville, Kneeland, Willow Creek,
Alderpoint, Orleans, and Pepperwood
1147 AM PDT Fri May 30 2025
...HEAT ADVISORY REMAINS IN EFFECT UNTIL 9 PM PDT THIS EVENING...
* WHAT...Temperatures as high as 102 with moderate Heat Risk.
* WHERE...Humboldt Interior.
* WHEN...Until 9 PM PDT this evening.
* IMPACTS...Hot temperatures may cause heat illnesses.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Drink plenty of fluids, stay in an air-conditioned room, stay out of
the sun, and check up on relatives and neighbors.
Take extra precautions when outside. Wear lightweight and loose
fitting clothing. Try to limit strenuous activities to early morning
or evening. Take action when you see symptoms of heat exhaustion and
heat stroke.
To reduce risk during outdoor work, the Occupational Safety and
Health Administration recommends scheduling frequent rest breaks in
shaded or air conditioned environments. Anyone overcome by heat
should be moved to a cool and shaded location. Heat stroke is an
emergency! Call 9 1 1.
&&
$$
URGENT - WEATHER MESSAGE
National Weather Service Eureka CA
1147 AM PDT Fri May 30 2025
CAZ107-108-111-114-115-310700-
/O.CON.KEKA.HT.Y.0001.000000T0000Z-250601T0500Z/
Northern Trinity-Southern Trinity-Northeastern Mendocino Interior-
Northern Lake-Southern Lake-
Including Douglas City, Finley, Del Loma, Knobcone Camp,
Lakeport, Hidden Valley Lake, Hyampom, Clearlake, Hayfork,
Weaverville, Forest Glen, Helena, Clearlake Park, Ruth, Peanut,
Carrville, Zenia, Big Bar, Middletown, Trinity Center, Junction
City, Gravelly Valley Airport, and Covelo
1147 AM PDT Fri May 30 2025
...HEAT ADVISORY REMAINS IN EFFECT UNTIL 10 PM PDT SATURDAY...
* WHAT...Temperatures as high as 105 expected with moderate Heat
Risk.
* WHERE...Trinity County, Lake County, and Northeastern Mendocino
Interior.
* WHEN...Until 10 PM PDT Saturday.
* IMPACTS...Hot temperatures 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.
&&
$$
URGENT - WEATHER MESSAGE
National Weather Service Eureka CA
1147 AM PDT Fri May 30 2025
CAZ110-113-310400-
/O.CON.KEKA.HT.Y.0001.000000T0000Z-250531T0400Z/
Northwestern Mendocino Interior-Southeastern Mendocino Interior-
Including Laytonville, Willits, Legget, Calpella, Potter Valley,
Redwood Valley, Talmage, Ukiah, and Hopland
1147 AM PDT Fri May 30 2025
...HEAT ADVISORY REMAINS IN EFFECT UNTIL 9 PM PDT THIS EVENING...
* WHAT...Temperatures as high as 104 expected with moderate Heat
Risk.
* WHERE...Northwestern Mendocino Interior and Southeastern Mendocino
Interior.
* WHEN...Until 9 PM PDT this evening.
* IMPACTS...Hot temperatures may cause heat illnesses.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Drink plenty of fluids, stay in an air-conditioned room, stay out of
the sun, and check up on relatives and neighbors.
Take extra precautions when outside. Wear lightweight and loose
fitting clothing. Try to limit strenuous activities to early morning
or evening. Take action when you see symptoms of heat exhaustion and
heat stroke.
To reduce risk during outdoor work, the Occupational Safety and
Health Administration recommends scheduling frequent rest breaks in
shaded or air conditioned environments. Anyone overcome by heat
should be moved to a cool and shaded location. Heat stroke is an
emergency! Call 9 1 1.
&&
$$
For hazard areas see https://www.wrh.noaa.gov/map/?wfo=eka
JHW
URGENT - WEATHER MESSAGE
National Weather Service Elko NV
Issued by National Weather Service Boise ID
1120 PM PDT Thu May 29 2025
NVZ030-036-038-302115-
/O.NEW.KLKN.HT.Y.0001.250531T1900Z-250601T0300Z/
Humboldt County-Northern Lander County and Northern Eureka County-
Southwest Elko County-
Including the cities of Battle Mountain, Elko, Dunphy, Jiggs,
Lamoille, South Fork, Crescent Valley, Winnemucca, Beowawe,
Palisade, Valmy, Ryndon, Argenta, Dufferena, Golconda, Lee,
Emigrant Pass, and Spring Creek
1120 PM PDT Thu May 29 2025
...HEAT ADVISORY IN EFFECT FROM NOON TO 8 PM PDT SATURDAY...
* WHAT...Temperatures of 94 to 99 degrees expected in the valleys
with record highs possible.
* WHERE...Northern Lander County and Northern Eureka County,
Southwest Elko County, and Humboldt County Counties.
* WHEN...From noon to 8 PM PDT Saturday.
* IMPACTS...Hot temperatures 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.
&&
$$
BW
