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2 products issued by NWS for: 4 Miles N Santee CA
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Fire Weather Watch

URGENT - FIRE WEATHER MESSAGE
National Weather Service San Diego CA
241 AM PDT Sat Oct 21 2017

...CRITICAL FIRE WEATHER CONDITIONS THIS WEEKEND THROUGH TUESDAY
BECAUSE OF LOW HUMIDITY AND STRONG GUSTY WINDS...

.High pressure and areas of strong offshore winds will bring
areas of gusty northeast to east winds...especially below passes
and canyons...very low humidity...and hot weather this weekend
through Tuesday. The most extreme combination of low humidity...
stronger and more widespread winds...and heat is expected on
Monday and Tuesday. Winds will begin in the San Bernardino County
Mountains...the Inland Empire and Santa Ana Mountains this
morning...then increase in coverage toward the coast and spread
into San Diego County Sunday through Tuesday. Strongest winds will
be during the mornings Monday and Tuesday. Winds will decrease
and humidity will slowly rise Wednesday and beyond.

CAZ250-256-258-552-554-212130-
/O.CON.KSGX.FW.A.0003.171022T1300Z-171025T0100Z/
San Diego County Inland Valleys-Riverside County Mountains-
Including The San Jacinto Ranger District Of The San Bernardino
National Forest-San Diego County Mountains-
Including The Palomar And Descanso Ranger Districts of the
Cleveland National Forest-Orange County Coastal Areas-
Orange County Inland Areas-
241 AM PDT Sat Oct 21 2017

...FIRE WEATHER WATCH REMAINS IN EFFECT FROM SUNDAY MORNING
THROUGH TUESDAY AFTERNOON FOR STRONG GUSTY WINDS AND LOW HUMIDITY...

* WIND...For Sunday...areas of northeast winds 15 to 25 mph with
  gusts to 35 near the coastal foothills and below passes and
  canyons. Stronger and more widespread winds for Monday and
  Tuesday with areas of northeast winds 20 to 30 mph with gusts to
  45 mph. Isolated gusts to 50 mph.

* HUMIDITY...Lowest daytime humidity of 5 to 10 percent Sunday...
  and around 5 percent Monday and Tuesday with poorest overnight
  recovery in the windier areas near the coastal foothills.

* TIMING...Sunday through Tuesday...with the most extreme
  combination of low humidity...stronger and more widespread
  winds...and heat on Monday and Tuesday.

* OUTLOOK...Winds should weaken Wednesday with some improvement
  in humidity.

* IMPACTS...Any fires that develop will likely spread rapidly...
  especially Monday and Tuesday. Outdoor burning is not
  recommended.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Fire Weather Watch means that critical fire weather conditions
are forecast to occur. A combination of strong winds, low
relative humidity and hot weather can contribute to extreme fire
behavior. Listen for later forecasts and possible Red Flag
Warnings.

&&

$$

17




Excessive Heat Watch

URGENT - WEATHER MESSAGE
National Weather Service San Diego CA
223 AM PDT Sat Oct 21 2017

...VERY HOT WEATHER IN THE COASTAL AREAS AND VALLEYS FOR MONDAY
AND TUESDAY...

.Offshore winds and strong high pressure aloft will develop this
weekend and bring a strong warming trend. High temperatures will
warm steadily with Monday and Tuesday expected to be the hottest
days. Temperatures may not fall below the 70s Monday night in some
of the windier coastal foothill locations. A cooling trend is
expected to develop on Wednesday and continue next weekend.

CAZ043-048-050-552-554-212130-
/O.CON.KSGX.EH.A.0005.171023T1700Z-171025T0300Z/
San Diego County Coastal Areas-
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 Vista, Carlsbad, Encinitas, Chula Vista,
National City, San Diego, 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
223 AM PDT Sat Oct 21 2017

...EXCESSIVE HEAT WATCH REMAINS IN EFFECT FROM MONDAY MORNING
THROUGH TUESDAY EVENING...

* TEMPERATURE...Highs mostly in the 90s...except 98 to 106 for
  inland Orange County into the western Inland Empire and for the
  mesas to the western valleys in San Diego County. The beaches
  will not be quite as hot with high temperatures mostly in the
  80s.

* 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...Gradual cooling will likely occur Wednesday and
  Thursday.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

An Excessive Heat Watch means that a prolonged period of very
high temperatures is expected. The very hot weather will create a
dangerous situation in which heat illnesses are possible. Drink
plenty of fluids, stay in an air-conditioned room, stay out of
the sun, and check up on relatives and neighbors.

&&

$$

17




U.S. Dept. of Commerce
NOAA National Weather Service
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Silver Spring, MD 20910
E-mail: w-nws.webmaster@noaa.gov
Page last modified: May 16, 2007
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