Extreme Heat Warning
URGENT - WEATHER MESSAGE
National Weather Service Las Vegas NV
232 AM PDT Sat May 31 2025
AZZ036-CAZ522>524-NVZ016-017-020>022-010600-
/O.CON.KVEF.XH.W.0001.000000T0000Z-250601T0600Z/
Lake Mead National Recreation Area-Death Valley National Park-
Western Mojave Desert-Eastern Mojave Desert-Northeast Clark
County-Western Clark and Southern Nye County-Las Vegas Valley-
Lake Mead National Recreation Area-Southern Clark County-
Including the cities of Desert Rock, Pahrump, Laughlin, Daggett,
Mesquite, Cal-Nev-Ari, Fort Irwin, Mountain Pass, Las Vegas,
Henderson, Boulder City, Searchlight, Primm, Bullhead City,
Moapa, Mohave Valley, Shoshone, Amargosa Valley, North Las Vegas,
Oatman, Stovepipe Wells, Furnace Creek, Mitchell Caverns, Baker,
Indian Springs, Hoover Dam, Barstow, and Overton
232 AM PDT Sat May 31 2025 /232 AM MST Sat May 31 2025/
...EXTREME HEAT WARNING REMAINS IN EFFECT UNTIL 11 PM PDT /11 PM
MST/ THIS EVENING...
* WHAT...Dangerously hot conditions with a major risk for heat
related illness and impacts.
* WHERE...Lake Mead National Recreation Area, Death Valley National
Park, Western Mojave Desert, Eastern Mojave Desert, Northeast
Clark County, Western Clark and Southern Nye County, Las Vegas
Valley, and Southern Clark County.
* WHEN...Until 11 PM PDT /11 PM MST/ this evening.
* IMPACTS...Heat related illnesses increase significantly during
extreme heat events.
* ADDITIONAL DETAILS...Temperatures today will reach 105 to 110 in
the Lake Mead Recreation Area, 100 to 105 in the western Mojave
Desert including Barstow, and 103 to 109 in the valleys of
southern Nevada including Pahrump, Las Vegas, and Moapa.
Temperatures over 115 are likely in Death Valley.
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.
Monitor the latest forecasts and warnings for updates.
If you do not have air conditioning in your home or lack shelter,
monitor for local cooling shelters openings and assistance locating
appropriate shelter from the heat.
&&
$$
For more information from the National Weather Service visit
http://weather.gov/lasvegas
SM
Red Flag Warning
URGENT - FIRE WEATHER MESSAGE
National Weather Service Reno NV
320 AM PDT Sat May 31 2025
CAZ274-NVZ420-421-429-011200-
/O.CON.KREV.FW.W.0001.250531T1800Z-250602T0600Z/
Southern Mono County-
Northern Sierra Front including Carson City, Douglas, Storey,
Southern Washoe, Western Lyon, and Far Southern Lassen Counties-
Southern Sierra Front including Alpine, Northern Mono, Southern
Lyon, and Western Mineral Counties-
Lahontan Basin including Churchill and Eastern Mineral Counties-
320 AM PDT Sat May 31 2025
...RED FLAG WARNING REMAINS IN EFFECT FROM 11 AM THIS MORNING TO
11 PM PDT SUNDAY FOR GUSTY WINDS, LOW HUMIDITY, AND ISOLATED
LIGHTNING FOR PARTS OF WESTERN NEVADA AND THE EASTERN SIERRA
BELOW 7000 FEET...
* Affected Area...Fire Weather Zone 274 Southern Mono County,
Fire Weather Zone 420 Northern Sierra Front including Carson
City, Douglas, Storey, Southern Washoe, Western Lyon, and Far
Southern Lassen Counties, Fire Weather Zone 421 Southern
Sierra Front including Alpine, Northern Mono, Southern Lyon,
and Western Mineral Counties and Fire Weather Zone 429
Lahontan Basin including Churchill and Eastern Mineral
Counties.
* Winds...Southwest wind gusts 30 to 40 mph. Gusts to 50 mph in
wind prone areas.
* Humidity...10-15% during the day with poor overnight
recoveries around 20-35%.
* Thunderstorms...10-15% chance of isolated dry thunderstorms
with gusty, erratic outflow winds primarily in the Sierra.
* Duration...8 to 12 hours.
* Impacts...The combination of gusty winds and low humidity can
cause fire to rapidly grow in size and intensity before first
responders can contain them.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Avoid outdoor activities that can cause a spark near dry
vegetation, such as yard work, target shooting, or campfires.
Follow local fire restrictions. Check weather.gov/reno for
updates and livingwithfire.info for preparedness tips.
&&
$$
http://weather.gov/reno
Heat Advisory
URGENT - WEATHER MESSAGE
National Weather Service Hanford CA
247 PM PDT Sat May 31 2025
CAZ300>321-324-332-010600-
/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 Los Banos, Delano, Lost Hills, Lake
Mcclure, Coalinga, Lemoore Station, Sanger, Kettleman City,
Alpaugh, Hanford, Tulare, Oakhurst, San Luis Reservoir, Taft,
Selma, Bass Lake, Atwater, Bakersfield, Blackwells Corner,
Parlier, Wasco, Fish Camp, Auberry, Yosemite Valley, Fresno,
Coarsegold, Five Points, Corcoran, Shafter, Millerton Lake,
Goshen, Mariposa, Visalia, Madera, McKittrick, Lemoore,
Richgrove, Lake Isabella, Le Grand, Kingsburg, North Fork,
Porterville, Avenal, Merced, Kerman, Buttonwillow, Planada,
Kernville, Arvin, El Portal, and Lamont
247 PM PDT Sat May 31 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.
&&
$$
JPK
URGENT - WEATHER MESSAGE
National Weather Service San Francisco CA
1221 PM PDT Sat May 31 2025
CAZ504-510-513-516>518-010300-
/O.CON.KMTR.HT.Y.0003.000000T0000Z-250601T0300Z/
North Bay Interior Mountains-East Bay Interior Valleys-Santa
Clara Valley Including San Jose-Southern Salinas Valley/Arroyo
Seco and Lake San Antonio-Santa Lucia Mountains and Los Padres
National Forest-Mountains of San Benito County And Interior
Monterey County including Pinnacles National Park-
1221 PM PDT Sat May 31 2025
...HEAT ADVISORY REMAINS IN EFFECT UNTIL 8 PM PDT THIS EVENING...
* WHAT...Temperatures in the 90s to 105 degrees
* WHERE...Interior Monterey County and the Santa Lucia Range, Most
of San Benito County and the Cholame Hills in Southeast Monterey
County, The Santa Clara Valley, North Bay Interior Mountains, East
Bay Interior Valleys, and Southern Salinas Valley/Arroyo Seco and
Lake San Antonio.
* WHEN...Until 8 PM PDT this evening.
* IMPACTS...Hot conditions can cause heat illnesses. This level of
heat affects most individuals sensitive to heat, especially those
without effective cooling and/or adequate hydration. Impacts
possible in some health systems and in heat-sensitive industries.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Hydration is a critical piece to surviving the heat. Drink water,
and if possible, take water to those who are vulnerable.
Take extra precautions when outside. Wear lightweight and loose
fitting clothing. Try to limit strenuous activities to the early
morning or evening. Take action when you experience symptoms of heat
exhaustion and/or heat stroke.
Beat the heat and check the backseat! Do not leave young children or
pets in unattended vehicles.Car interiors will reach lethal
temperatures in a matter of minutes.
&&
$$
Palmer
URGENT - WEATHER MESSAGE
National Weather Service Sacramento CA
1217 PM PDT Sat May 31 2025
CAZ013-015>019-063-066-067-010600-
/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 Sacramento, Marysville/Yuba City,
Redding, Red Bluff, Paradise, Grass Valley, Jackson, Modesto,
Fairfield/Suisun, Stockton, Alder Springs, Chico, Shasta Dam, and
Oroville
1217 PM PDT Sat May 31 2025
...HEAT ADVISORY REMAINS IN EFFECT UNTIL 11 PM PDT THIS EVENING...
* WHAT...Dangerously hot conditions with temperatures 99 to 107.
Moderate HeatRisk with areas of Major HeatRisk expected. Limited
overnight relief with low temperatures in the 60s to low 70s.
* WHERE...Carquinez Strait and Delta, Sacramento Valley, Motherlode,
Mountains Southwestern Shasta County to Western Colusa County,
Northeast Foothills, Northern San Joaquin Valley, and Shasta Lake
Area / Northern Shasta County.
* WHEN...Until 11 PM PDT this evening.
* 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.
&&
$$
For more information, visit us at www.weather.gov/sto/
NR
Flood Advisory
Flood Advisory
National Weather Service Los Angeles/Oxnard CA
634 PM PDT Sat May 31 2025
CAC083-010330-
/O.NEW.KLOX.FA.Y.0038.250601T0134Z-250601T0330Z/
/00000.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Santa Barbara CA-
634 PM PDT Sat May 31 2025
...FLOOD ADVISORY IN EFFECT UNTIL 830 PM PDT THIS EVENING...
* WHAT...Flooding caused by excessive rainfall is expected.
* WHERE...A portion of southwest California, including the following
county, Santa Barbara.
* WHEN...Until 830 PM PDT.
* IMPACTS...Minor flooding in low-lying and poor drainage areas.
Dangerous flows over low-water crossings. Minor mud and debris
flows possible in the Lake Fire burn scar.
* ADDITIONAL DETAILS...
- At 630 PM PDT, Doppler radar indicated heavy rain due to
thunderstorms. Minor flooding is ongoing or expected to begin
shortly in the advisory area. Rainfall rates around one half
inch per hour will be possible.
- Some locations that will experience flooding include...
Figueroa Mountain, Lake Cachuma and southern portions of the
Lake Fire burn scar.
- http://www.weather.gov/safety/flood
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don`t drown when encountering flooded roads. Most flood
deaths occur in vehicles.
In hilly terrain there are hundreds of low water crossings which are
potentially dangerous in heavy rain. Do not attempt to cross flooded
roads. Find an alternate route.
&&
LAT...LON 3459 11988 3472 12011 3481 12001 3483 11969
3469 11970
$$
RAT
Special Weather Statement
Special Weather Statement
National Weather Service OXNARD CA
701 PM PDT Sat May 31 2025
CAZ348-351-353-010245-
Santa Barbara County Interior Mountains CA-Santa Ynez Valley CA-
Santa Ynez Mountains Western Range CA-
701 PM PDT Sat May 31 2025
...A STRONG THUNDERSTORM WILL IMPACT NORTH CENTRAL SANTA BARBARA
COUNTY THROUGH 745 PM PDT...
At 655 PM PDT, Doppler radar was tracking a cluster of strong
thunderstorms across the Santa Barbara county mountains, extending
westward into the southern portion of the Lake Fire burn scar,
and Lake Cachuma. The storms are moving to the southwest at
10 to 15 mph.
HAZARD...Wind gusts up to 50 mph and half inch hail, as well as
frequent lightning strikes. Localized flooding will be
possible near the core of the thunderstorm.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects. Minor hail damage to vegetation is
possible. New fire ignitions will be possible due to
the frequent lightning strikes observed, especially on
the periphery of the storm.
Locations impacted include...
Santa Ynez...
Figueroa Mountain...
Big Pine Mountain...
Lake Cachuma...
and southern portions of the Lake Fire burn scar.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.
&&
LAT...LON 3453 12007 3470 12013 3477 11992 3474 11965
3474 11945 3461 11945 3458 11965
TIME...MOT...LOC 0155Z 239DEG 16KT 3474 11962
MAX HAIL SIZE...0.50 IN
MAX WIND GUST...50 MPH
$$
Gomberg
