San Bernardino County, California
To view the watches and warnings information that we have available you will need to select your city, county, or state first.
Enter City, State or Zip Code to Select a Location from the List
Watch/Warnings
Click to view enlarged map

The National Weather Service's Watches, Warnings and Advisories by state counties include: Thunderstorm, Tornado, Flood, Flash Flood, Winter Storm, High Wind, Gale, Small Aircraft, High Surf, Marine, Heat, Air Quality, Ashfall, Hazardous, and Special Statements.
Weather Alerts: San Bernardino County, California
« View county list

Excessive Heat Warning
CAZ560-270300-
/O.CON.KPSR.EH.W.0003.000000T0000Z-170627T0300Z/
Joshua Tree NP West-
Including the cities of Cottonwood Visitor and Lost Horse-Keys
Village
226 AM PDT Mon Jun 26 2017

...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM PDT THIS
EVENING...

* AFFECTED AREA...All of Joshua Tree National Park including the
hotter areas near the Cottonwood Visitor Center.

* TEMPERATURE...Highs 93 to 104 degrees.

* IMPACTS...Very hot temperatures will significantly increase
the potential for heat related illness for visitors to the
Park - especially those hiking and climbing.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Never leave kids or pets unattended in cars. Drink more water
than usual and avoid alcohol, sugar, and caffeine. When outdoors,
wear light colored clothing and a wide-brimmed hat to keep your
head and body cooler. Take frequent rest breaks in shaded or air
conditioned environments. Public places with air conditioning
include libraries, community centers, government buildings,
malls, and special refuge stations.

Recognize the signs and symptoms of heat illness. Early symptoms
include things such as headache, thirst, and muscle cramps.
Serious symptoms include weakness, skin that is cool to the
touch, fast but weak pulse, nausea, and fainting. Severe symptoms
include hot and red dry skin, fast and strong Pulse, sweating
that has stopped, and unconsciousness. Untreated heat illness can
lead to fatal heat stroke.

Stay cool, stay hydrated, stay informed.

&&

$$

Excessive Heat Warning
AZZ530-CAZ561>570-270300-
/O.CON.KPSR.EH.W.0003.000000T0000Z-170627T0300Z/
Parker Valley-Joshua Tree NP East-Imperial County Southwest-
Salton Sea-Chuckwalla Mountains-Imperial County Southeast-
Imperial County West-Imperial Valley-Chiriaco Summit-
Palo Verde Valley-Chuckwalla Valley-
Including the cities of Parker, Ehrenberg, Mountain Spring,
Desert Shores, Imperial Hot Mineral Springs, Winterhaven,
Coolidge Springs, Salton City, Winona, Coyote Wells, Ocotillo,
Plaster City, El Centro, Calexico, Alamorio, Brawley,
Chiriaco Summit, Martinez Lake, Blythe, Palo Verde, Ripley,
and Midland
226 AM MST Mon Jun 26 2017 /226 AM PDT Mon Jun 26 2017/

...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM MST /8 PM
PDT/ THIS EVENING...

* AFFECTED AREA...Southeast California including Blythe and El
Centro.

* TEMPERATURE...Highs 112 to 116 degrees.

* IMPACTS...A major increase in the potential for heat related
illness and even death. Those working or exercising outdoors
during the daytime, the elderly, and those without access to
adequate air conditioning will be most at risk.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Never leave kids or pets unattended in cars. Drink more water
than usual and avoid alcohol, sugar, and caffeine. When outdoors,
wear light colored clothing and a wide-brimmed hat to keep your
head and body cooler. Take frequent rest breaks in shaded or air
conditioned environments. Public places with air conditioning
include libraries, community centers, government buildings,
malls, and special refuge stations.

Recognize the signs and symptoms of heat illness. Early symptoms
include things such as headache, thirst, and muscle cramps.
Serious symptoms include weakness, skin that is cool to the
touch, fast but weak pulse, nausea, and fainting. Severe symptoms
include hot and red dry skin, fast and strong Pulse, sweating
that has stopped, and unconsciousness. Untreated heat illness can
lead to fatal heat stroke.

Stay cool, stay hydrated, stay informed.

&&

$$

Excessive Heat Warning
AZZ001>003-036-CAZ522-524>527-NVZ016-017-020>022-261900-
/O.CON.KVEF.EH.W.0001.000000T0000Z-170627T0400Z/
Northwest Plateau-Lake Havasu and Fort Mohave-Northwest Deserts-
Lake Mead National Recreation Area-Death Valley National Park-
Eastern Mojave Desert-Morongo Basin-Cadiz Basin-
San Bernardino County-Upper Colorado River Valley-
Northeast Clark County-Western Clark and Southern Nye County-
Las Vegas Valley-Southern Clark County-
Including Colorado City,
Pipe Spring National Monument, Tuweep, Mt Trumbell,
Western Grand Canyon, Lake Havasu City, Desert Hills, Topock,
Kingman, Golden Valley, Dolan Springs, Valentine, Wikieup, Yucca,
Bullhead City, Oatman, Mohave Valley, Furnace Creek,
Stovepipe Wells, Shoshone, Baker, Mountain Pass,
Mitchell Caverns, Morongo Valley, Yucca Valley, Twentynine Palms,
Vidal Junction, Needles, Mesquite, Overton, Moapa, Pahrump,
Indian Springs, Desert Rock, Amargosa Valley, Las Vegas,
North Las Vegas, Henderson, Boulder City, Hoover Dam, Laughlin,
Primm, .Searchlight, and Cal-Nev-Ari
308 AM PDT Mon Jun 26 2017 /308 AM MST Mon Jun 26 2017/

...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 9 PM PDT /9 PM
MST/ THIS EVENING...

* TEMPERATURE...The prolonged period of excessive heat will
finally begin to wane today and come to an end for Tuesday.
Temperatures today will fall to 107-111 for the Las Vegas Valley
and other lower desert areas, 118-122 for Death Valley and
110-117 along the Colorado River Valley.

* IMPACTS...Even though temperatures will lower somewhat today, heat
illnesses will still be likely; especially for the elderly,
children, homeless, those unaccustomed to the heat, and those
that do not take proper precautions.

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...if you work or spend time outside. When
possible...reschedule strenuous activities to early morning or
evening. Know the signs and symptoms of heat exhaustion and heat
stroke. Wear light weight and loose fitting clothing when
possible and drink plenty of water.

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.

Young children and pets should never be left unattended in
vehicles under any circumstances. This is especially true during
warm or hot weather when car interiors can reach lethal
temperatures in a matter of minutes.

&&

$$

Fire Weather Warning
CAZ228-229-270400-
/O.EXA.KVEF.FW.W.0014.170626T1900Z-170627T0400Z/
Mojave Desert Including Morongo Valley/Yucca Valley-
Lower Colorado River Valley-
903 AM PDT Mon Jun 26 2017

...RED FLAG WARNING IN EFFECT FROM NOON TODAY TO 9 PM PDT THIS
EVENING FOR STRONG WINDS AND LOW RH FOR FIRE WEATHER ZONES 228
AND 229...

The National Weather Service in Las Vegas has issued a Red Flag
Warning, which is in effect from noon today to 9 PM PDT this
evening.

* AFFECTED AREA...In California...the Mojave Desert and Lower
Colorado River Valley...Fire weather zones 228 and 229.


* TIMING...Winds will increase significantly by noon today and
will peak in the mid to late afternoon hours then gradually
decrease this evening.

* WIND...South to southwest with sustained speeds of 15 to 25 mph
and gusts around 35 mph along the Colorado River Valley. Winds
across much of the Mojave Desert zone will be 20 to 35 mph with
gusts 40 to 50 mph.

* HUMIDITY...Minimum relative humidity values of 4 to 8 percent
can be expected this afternoon for most sites.

* IMPACTS...A Red Flag Warning means that critical fire weather
conditions are expected. Any fires that develop will likely
spread rapidly. A combination of strong winds...low relative
humidity...and warm temperatures can contribute to extreme
fire behavior.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Outdoor burning is not recommended. Heed all fire restrictions
and use extra caution with any ignition sources.

&&

$$

Fire Weather Warning
CAZ255-260-262200-
/O.NEW.KSGX.FW.W.0001.170626T2000Z-170627T0800Z/
San Bernardino County Mountains-
Including The Mountain Top And Front Country Ranger Districts Of
The San Bernardino National Forest-Victor Valley-Apple Valley-
Lucerne Valley-Johnson Valley-
934 AM PDT Mon Jun 26 2017

...RED FLAG WARNING IN EFFECT FROM 1 PM THIS AFTERNOON TO 1 AM
PDT TUESDAY FOR STRONG GUSTY WINDS AND LOW HUMIDITIES FOR desert
slopes of the mountains below 5000 feet and the high desert.

THE NATIONAL WEATHER SERVICE IN San Diego HAS ISSUED a Red Flag
Warning...WHICH IS IN EFFECT from 1 PM this afternoon to 1 AM PDT
Tuesday.

* Wind...west to southwest 15 to 25 mph with gusts to 35 mph.

* Humidity...single digits.

* Timing...through tonight.

* Outlook...decreasing winds tonight through Tuesday, but
continued dry.

* IMPACTS...ANY FIRES THAT DEVELOP WILL LIKELY SPREAD RAPIDLY.
OUTDOOR BURNING IS NOT RECOMMENDED.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Red Flag Warning means that critical fire weather conditions
are either occurring now....or will shortly. A combination of
strong winds...low relative humidity...and warm temperatures can
contribute to extreme fire behavior.

&&

$$

Heat Advisory
CAZ048-262130-
/O.CON.KSGX.HT.Y.0002.000000T0000Z-170627T0400Z/
San Bernardino and Riverside County Valleys-The Inland Empire-
Including the cities of Riverside, San Bernardino, Ontario,
Moreno Valley, Fontana, Rancho Cucamonga, and Corona
338 AM PDT Mon Jun 26 2017

...HEAT ADVISORY REMAINS IN EFFECT UNTIL 9 PM PDT THIS EVENING...

* High Temperatures...103 to 112.

* Impacts...Those working or spending time outdoors, the
elderly, children, and those unaccustomed to excessive heat
will be most susceptible to dangerous heat illness.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take extra precautions...if you work or spend time outside. When
possible...reschedule strenuous activities to early morning or
evening. Know the signs and symptoms of heat exhaustion and heat
stroke. Wear light weight and loose fitting clothing when
possible and drink plenty of water.

&&

$$

Heat Advisory
CAZ055-056-058-262130-
/O.CON.KSGX.HT.Y.0002.000000T0000Z-170627T0400Z/
San Bernardino County Mountains-Riverside County Mountains-
San Diego County Mountains-
Including the cities of Crestline, Julian, and Pine Valley
338 AM PDT Mon Jun 26 2017

...HEAT ADVISORY REMAINS IN EFFECT UNTIL 9 PM PDT THIS EVENING
BELOW 5000 FEET...

* High Temperatures...90 to 100.

* Location...Elevations below 5000 FT.

* Impacts...Those working or spending time outdoors, the
elderly, children, and those unaccustomed to excessive heat
will be most susceptible to dangerous heat illness.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take extra precautions...if you work or spend time outside. When
possible...reschedule strenuous activities to early morning or
evening. Know the signs and symptoms of heat exhaustion and heat
stroke. Wear light weight and loose fitting clothing when
possible and drink plenty of water.

&&

$$

Wind Advisory
CAZ523-261900-
/O.CAN.KVEF.EH.W.0001.000000T0000Z-170627T0400Z/
/O.NEW.KVEF.WI.Y.0038.170626T1900Z-170627T0400Z/
Western Mojave Desert-
Including Barstow, Daggett, and Fort Irwin
308 AM PDT Mon Jun 26 2017

...WIND ADVISORY IN EFFECT FROM NOON TODAY TO 9 PM PDT THIS
EVENING...
...EXCESSIVE HEAT WARNING IS CANCELLED...

The National Weather Service in Las Vegas has issued a Wind
Advisory, which is in effect from noon today to 9 PM PDT this
evening. The Excessive Heat Warning has been cancelled for western
San Bernardino County.

* TIMING...Winds will increase significantly across western San
Bernardino County from Barstow northward by noon then peak
during the mid to late afternoon before decreasing in the
evening. Increasing winds and high temperatures 3-5 degrees
lower than Sunday will ease the heat impacts for this area.

* WINDS...West 25 to 35 mph with gusts to 45 mph.

* IMPACTS...Strong winds gusting over 40 mph can make driving
difficult...especially for motorcycles and high profile
vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Motorcycle riders and drivers of vans...campers...trailers and
any other high profile vehicle should be alert to the danger of
these strong winds.

&&

$$

National Weather Service

Providing "weather, water cycle, and climate forecasts and warnings for the United States, its territories, adjacent waters and ocean areas, for the protection of life and property and the enhancement of the national economy."
Weather Alerts by Type
Excessive Heat Warning
Fire Weather Warning
Fire Weather Watch
Flood Advisory
Flood Warning
Heat Advisory
Lake Wind Advisory
Special Weather Statement
Wind Advisory
Additional Severe Weather Maps
Severe Outlook Today
Severe Outlook Today
WSI's Severe Outlook Map displays current Watches, Warnings and Advisories via County Fill colors.
Severe Outlook Tomorrow
Severe Outlook Tomorrow
WSI's Severe Outlook Forecast Map displaying projected Watches, Warnings and Advisories.
THUNDERcast
THUNDERcast
The THUNDERcast map shows areas of probability for regional or national thunderstorms for the current day.
1Km Storm Watch
1Km Storm Watch
The 1Km map allows you to view 1 kilometer (km) resolution radar imagery both nationally and regionally.
Metro Storm Watch
Metro Storm Watch
The Metro map allows you to view 1 kilometer (km) resolution radar imagery.
Advertisements
Track Severe Weather on mobile