Non-Precipitation Warnings / Watches / Advisories
Issued by NWS San Diego, CA

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WWUS76 KSGX 200501
NPWSGX

URGENT - WEATHER MESSAGE
National Weather Service San Diego CA
1001 PM PDT Thu Oct 19 2017

...Unseasonably Hot Weather in Coastal and Valley Areas Monday
and Tuesday...

.Santa Ana Winds and strong high pressure aloft will develop this
weekend and bring a strong warming trend. By Monday, many
locations west of the mountains will have temperatures at or
above 100 degrees. Tuesday will likely be the hottest day, with
local temperatures possibly exceeding 105. In some locations,
maximum temperatures will be 25 degrees above late October
normals. The extreme heat could even reach the beaches Monday and
Tuesday due to the northeasterly winds.

CAZ043-048-050-552-554-201315-
/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
1001 PM PDT Thu Oct 19 2017

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

* Temperature...Daytime maximums between 98 and 106. Nighttime
  minimums in some windier locations could remain in the 70s.

* 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.

&&

$$

jmb

weather.gov/sandiego



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