San Bernardino County, California
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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
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Excessive Heat Warning
CAZ048-050-552-554-231315-
/O.CON.KSGX.EH.W.0005.171023T1700Z-171025T0300Z/
/O.CON.KSGX.WI.Y.0031.171023T0700Z-171025T2100Z/
San Bernardino and Riverside County Valleys-The Inland Empire-
San Diego County Valleys-Orange County Coastal Areas-
Orange County Inland Areas-
Including the cities of Riverside, San Bernardino, Ontario,
Moreno Valley, Fontana, Rancho Cucamonga, Corona, Escondido,
El Cajon, San Marcos, La Mesa, Santee, Poway, Huntington Beach,
Costa Mesa, Santa Ana, Anaheim, Garden Grove, Irvine, Orange,
Fullerton, and Mission Viejo
1001 PM PDT Sun Oct 22 2017

...WIND ADVISORY REMAINS IN EFFECT UNTIL 2 PM PDT WEDNESDAY...
...EXCESSIVE HEAT WARNING REMAINS IN EFFECT FROM 10 AM MONDAY TO
8 PM PDT TUESDAY...

* TEMPERATURE...Highs from 98 to 106 for inland Orange County and
the western Inland Empire and the western valleys in San Diego
County. The heat will likely reach all the way to the coast
where highs will range from the mid 80s to the mid 90s. Beach
communities in Orange County may exceed 95 degrees Tuesday.

* IMPACTS...Heat related illness is likely for those involved in
strenuous outdoor activity, or those with health conditions
that do not have adequate access to air conditioning. If
untreated, heat illness events could be fatal. Never leave
children or pets inside a parked car!

* OUTLOOK...Not quite as hot on Wednesday with greater cooling
for Thursday and Friday.

* Winds...Northeast winds increasing to 20 to 30 mph with gusts
of 50 mph tonight and Monday in the mountain passes, foothills
and sections of the Inland Empire. Strongest winds Monday
night and Tuesday with 25 to 35 mph winds gusting to 60 mph.
In coastal Orange County, 15 to 25 mph winds with gusts to 40
mph are possible Tuesday. Lighter winds Wednesday.

* Impacts...Hazardous travel for high profile vehicles. Broken
tree limbs and palm fronds.

* Outlook...Lighter winds and cooler weather Thursday and Friday.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

An Excessive Heat Warning means that a prolonged period of
dangerously hot temperatures will occur. The combination of hot
temperatures and high humidity will combine to create a dangerous
situation in which heat illnesses are likely. Drink plenty of
fluids...stay in an air-conditioned room...stay out of the sun...
and check up on relatives and neighbors.

A Wind Advisory means that winds of 35 mph are expected. Winds
this strong can make driving difficult...especially for high
profile vehicles. Use extra caution.

&&

$$

Fire Weather Warning
AZZ101-CAZ229-NVZ466-231245-
/O.NEW.KVEF.FW.W.0020.171023T1700Z-171025T0100Z/
Lake Mead NRA/Colorado River-AZ side-Lower Colorado River Valley-
Lake Mead NRA/Colorado River-NV side-
939 PM PDT Sun Oct 22 2017 /939 PM MST Sun Oct 22 2017/

...RED FLAG WARNING IN EFFECT FROM 10 AM PDT /10 AM MST/ MONDAY
TO 6 PM PDT /6 PM MST/ TUESDAY FOR STRONG WINDS AND LOW RH FOR
FIRE WEATHER ZONES 101, 229, AND 466...

The National Weather Service in Las Vegas has issued a Red Flag
Warning, which is in effect from 10 AM PDT /10 AM MST/ Monday to
6 PM PDT /6 PM MST/ Tuesday.

* AFFECTED AREA...In Arizona...Fire weather zone 101. In
California...Fire weather zone 229. In Nevada...Fire weather
zone 466.

* TIMING...Conditions for critical fire behavior will occur late
Monday morning and continue through early Tuesday evening.

* WIND...North 20 to 25 mph, gusts to 35 mph Monday. North 25 to
30 mph, gusts to 40 mph Tuesday. The winds will diminish a
little Monday night.

* HUMIDITY...Minimum humidity values 5 to 10 percent each day.

* 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.

&&

$$


Fire Weather Warning
CAZ248-250-255>258-265-552-554-231300-
/O.CON.KSGX.FW.W.0004.000000T0000Z-171026T0100Z/
San Bernardino and Riverside County Valleys - The Inland Empire-
San Diego County Inland Valleys-San Bernardino County Mountains-
Including The Mountain Top And Front Country Ranger Districts Of
The San Bernardino National Forest-Riverside County Mountains-
Including The San Jacinto Ranger District Of The San Bernardino
National Forest-Santa Ana Mountains-
Including The Trabuco Ranger District of the Cleveland National
Forest-San Diego County Mountains-
Including The Palomar And Descanso Ranger Districts of the
Cleveland National Forest-San Gorgonio Pass Near Banning-
Orange County Coastal Areas-Orange County Inland Areas-
953 PM PDT Sun Oct 22 2017

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 6 PM PDT WEDNESDAY
FOR STRONG GUSTY WINDS AND LOW HUMIDITY...

* WIND...Winds strengthening late tonight into Monday with 20 to
30 mph with gusts of 50 mph. Strongest winds Monday night and
Tuesday of 25 to 35 mph with gusts to 50 to 60 mph and isolated
gusts to 65 mph. Not quite as windy Wednesday.

* HUMIDITY...Lowest humidity around 5 percent Monday and Tuesday
with very poor overnight recovery in the windier areas near the
coastal foothills.

* TIMING...Through Wednesday. The most extreme combination of
low humidity...stronger and more widespread winds...and heat
on Monday and Tuesday.

* OUTLOOK...For Wednesday lowest humidity of 5 to 10 percent
with northeast winds gusting to 45 mph will continue critical
fire weather conditions. Cooler Thursday and Friday.

* IMPACTS...Any fires that develop will likely spread rapidly...
especially Monday and Tuesday. 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.

&&

$$

Wind Advisory
CAZ048-050-552-554-231315-
/O.CON.KSGX.EH.W.0005.171023T1700Z-171025T0300Z/
/O.CON.KSGX.WI.Y.0031.171023T0700Z-171025T2100Z/
San Bernardino and Riverside County Valleys-The Inland Empire-
San Diego County Valleys-Orange County Coastal Areas-
Orange County Inland Areas-
Including the cities of Riverside, San Bernardino, Ontario,
Moreno Valley, Fontana, Rancho Cucamonga, Corona, Escondido,
El Cajon, San Marcos, La Mesa, Santee, Poway, Huntington Beach,
Costa Mesa, Santa Ana, Anaheim, Garden Grove, Irvine, Orange,
Fullerton, and Mission Viejo
1001 PM PDT Sun Oct 22 2017

...WIND ADVISORY REMAINS IN EFFECT UNTIL 2 PM PDT WEDNESDAY...
...EXCESSIVE HEAT WARNING REMAINS IN EFFECT FROM 10 AM MONDAY TO
8 PM PDT TUESDAY...

* TEMPERATURE...Highs from 98 to 106 for inland Orange County and
the western Inland Empire and the western valleys in San Diego
County. The heat will likely reach all the way to the coast
where highs will range from the mid 80s to the mid 90s. Beach
communities in Orange County may exceed 95 degrees Tuesday.

* IMPACTS...Heat related illness is likely for those involved in
strenuous outdoor activity, or those with health conditions
that do not have adequate access to air conditioning. If
untreated, heat illness events could be fatal. Never leave
children or pets inside a parked car!

* OUTLOOK...Not quite as hot on Wednesday with greater cooling
for Thursday and Friday.

* Winds...Northeast winds increasing to 20 to 30 mph with gusts
of 50 mph tonight and Monday in the mountain passes, foothills
and sections of the Inland Empire. Strongest winds Monday
night and Tuesday with 25 to 35 mph winds gusting to 60 mph.
In coastal Orange County, 15 to 25 mph winds with gusts to 40
mph are possible Tuesday. Lighter winds Wednesday.

* Impacts...Hazardous travel for high profile vehicles. Broken
tree limbs and palm fronds.

* Outlook...Lighter winds and cooler weather Thursday and Friday.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

An Excessive Heat Warning means that a prolonged period of
dangerously hot temperatures will occur. The combination of hot
temperatures and high humidity will combine to create a dangerous
situation in which heat illnesses are likely. Drink plenty of
fluids...stay in an air-conditioned room...stay out of the sun...
and check up on relatives and neighbors.

A Wind Advisory means that winds of 35 mph are expected. Winds
this strong can make driving difficult...especially for high
profile vehicles. Use extra caution.

&&

$$

Wind Advisory
CAZ055>058-231315-
/O.CON.KSGX.WI.Y.0031.171023T0700Z-171025T2100Z/
San Bernardino County Mountains-Riverside County Mountains-
Santa Ana Mountains and Foothills-San Diego County Mountains-
Including the cities of Crestline, Running Springs,
Idyllwild-Pine Cove, and Pine Valley
1001 PM PDT Sun Oct 22 2017

...WIND ADVISORY REMAINS IN EFFECT UNTIL 2 PM PDT WEDNESDAY...

* Winds...Northeast winds increasing to 20 to 30 mph with gusts
of 50 mph tonight and Monday in the mountain passes and
foothills. Strongest winds Monday night and Tuesday with 25 to
35 mph winds gusting to 60 mph. Lighter winds Wednesday.

* Impacts...Hazardous travel for high profile vehicles. Small
tree limbs may be broken. Downed palm fronds.

* Outlook...Lighter winds and cooler weather Thursday and Friday.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Wind Advisory means that winds of 35 mph are expected. Winds
this strong can make driving difficult...especially for high
profile vehicles. Use extra caution.

&&

$$

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."
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