San Diego County Mountains Severe Watches & Warnings NOAA Weather Radio

Watches & Warnings

Excessive Heat Watch
Issued: 8:36 PM PDT Jul. 19, 2018 – National Weather Service

... Excessive heat watch remains in effect from Monday morning
through Wednesday evening...

* high temperatures... 90s for inland coastal areas, 102 to 109
in the inland valleys... 90s in the mountains above 6000 feet
and upper 90s to 105 below 6000 feet... 106 to 112 in the High
Desert areas... and 108 to 117 for the lower deserts.

* Impacts... a prolonged period of very hot days combined with
very warm nights is expected to create a dangerous situation in
which heat illnesses are possible.

* Outlook... well above average high temperatures may continue
beyond Wednesday, but with some moderation in the heat possible
as the high pressure weakens and moves northward.

Precautionary/preparedness actions...

An excessive heat watch means that a prolonged period of hot
weather is expected. The combination of high temperatures and
humidity will combine to 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.





836 PM PDT Thu Jul 19 2018

... Excessive heat watch remains in effect from Monday morning
through Wednesday evening...

* high temperatures... 90s for inland coastal areas, 102 to 109
in the inland valleys... 90s in the mountains above 6000 feet
and upper 90s to 105 below 6000 feet... 106 to 112 in the High
Desert areas... and 108 to 117 for the lower deserts.

* Impacts... a prolonged period of very hot days combined with
very warm nights is expected to create a dangerous situation in
which heat illnesses are possible.

* Outlook... well above average high temperatures may continue
beyond Wednesday, but with some moderation in the heat possible
as the high pressure weakens and moves northward.

Precautionary/preparedness actions...

An excessive heat watch means that a prolonged period of hot
weather is expected. The combination of high temperatures and
humidity will combine to 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.