Los Angeles County San Fernando Valley Severe Watches & Warnings NOAA Weather Radio

Watches & Warnings

Excessive Heat Warning, Wind Advisory
Issued: 6:15 PM PDT Oct. 23, 2017 – National Weather Service

... Excessive heat warning remains in effect until 8 PM PDT
... Wind Advisory remains in effect until 2 PM PDT Wednesday...

* temperatures... highs from 97 to 105. Overnight lows from 65 to
75 except low 80s in the hills.

* Winds... northeast 15 to 25 mph with gusts to 40 mph tonight
and 20 to 30 mph with gusts to 50 mph Tuesday before gradually
weakening into Wednesday.

* Impacts... the very high temperatures create a dangerous
situation in which heat illnesses are possible. Temperatures
inside vehicles, even if the windows are partially open, can
quickly rise to life-threatening levels. Gusty winds could
create travel difficulty for high profile vehicles.

Precautionary/preparedness actions...

Take extra precautions through Tuesday 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. Never, ever,
leave people or pets in enclosed vehicles, even for a short
period of time.

When driving, use extra caution. Be prepared for sudden gusty
cross winds.

Fire Weather Warning
Issued: 3:16 PM PDT Oct. 23, 2017 – National Weather Service

... Red flag warning remains in effect until 6 PM PDT Wednesday
for much of Los Angeles and Ventura counties due to gusty Santa
Ana winds and hot and dry conditions over the hills and canyons...

* winds... areas of north to northeast winds 15 to 30 mph with
gusts 35 to 45 mph through Tuesday mainly in the hills and
canyons... then weakening through Wednesday.

* Relative humidity... minimum humidities between 5 and 10
percent through Wednesday. Very poor humidity recoveries
expected each night.

* Temperatures... maximums between 95 and 105. Minimums between
65 and 75 except 75 to 85 in the hills.

* Impacts... if fire ignition occurs, conditions are favorable
for extreme fire behavior and spread which would threaten life
and property.

Precautionary/preparedness actions...

A red flag warning means that critical fire weather conditions
are expected. A combination of gusty winds... very low relative
humidity... and hot temperatures can contribute to extreme fire
behavior. Use extreme caution when using potential fire ignition