Orange County Inland Severe Watches & Warnings NOAA Weather Radio

Watches & Warnings

Wind Advisory, Excessive Heat Warning
Issued: 12:37 PM PDT Oct. 22, 2017 – National Weather Service

... Wind Advisory in effect from midnight tonight to 2 PM PDT
... Excessive heat warning remains in effect from 10 am Monday to
8 PM PDT Tuesday...

The National Weather Service in San Diego has issued a Wind
Advisory... which is in effect from midnight tonight to 2 PM PDT

* 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. A few
beach communities in Orange County may exceed 95 degrees

* 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. Small tree
limbs may be broken. Downed 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
Issued: 12:08 PM PDT Oct. 22, 2017 – National Weather Service

... Red flag warning now in effect until 6 PM PDT Wednesday for
strong gusty winds and low humidity...

* wind... through early evening... areas of northeast winds 15 to 25
mph with gusts to 35 mph near coastal foothills and below passes
and canyons. 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 with
isolated gusts to 65 mph. Not quite as windy Wednesday.

* Humidity... lowest humidity around 5 percent Monday and Tuesday
with poorest 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

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.