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Area forecast discussion 
National Weather Service San Diego California
400 am PDT Friday Aug 22 2014

Synopsis...
a trough of low pressure moving inland through the west will bring
stronger onshore flow through the weekend with slight cooling and
gusty west winds in the mountains and deserts during the late
afternoon through late evening. Temperatures will warm to near
average early next week and slightly above average for the latter
half of next week as high pressure develops over California.

&&

Discussion...for extreme southwestern California including Orange...
San Diego...western Riverside and southwestern San Bernardino
counties...

Short term (today through sunday)...
a trough of low pressure moving inland through the west will bring
stronger onshore flow through the weekend. This will bring slow
cooling with high temperatures slightly below average. Night and
morning coastal low clouds and patchy fog will become more extensive
and spread into portions of the western valleys over the weekend.
The stronger onshore flow will also bring locally gusty west winds
to the mountains and deserts during the late afternoon through late
evening.

&&

Long term (monday through thursday)...
the trough of low pressure over the west will move inland early next
week and high pressure will develop over California during the
middle of the week...then may weaken some toward next weekend. High
temperatures will warm to near average early next week...then to a
little above average for the latter half of next week. The marine
layer will decrease in depth with stratus coverage patchier the
latter half of next week.

What is now Tropical Storm Marie is forecast by the National
Hurricane Center to strengthen into a major hurricane as it remains
well to the south of Southern California on a west northwest track.
It is currently forecast to have both a strong wind field and a
large wind field...both favorable for generating large swell that
would bring high surf to Southern California beaches the middle to
latter part of next week.

&&

Aviation...
221000z...coast/valleys...very patchy stratus...with bases from
1200-1600 feet mean sea level and tops to 2000 feet mean sea level...will continue to slowly
develop along the coast and coastal valleys this morning. Mist/fog
will lower visibility to 1-3 sm where low clouds near higher
terrain. Conditions will clear late this morning...with VFR
conditions prevailing this afternoon. Low clouds...with similar tops
and bases...will redevelop along the coast and around 20 sm inland
by middle Saturday morning.

Mountains/deserts...breezy southwesterly winds around 35 knots will
develop this afternoon and evening through mountain passes and along
adjacent desert slopes. Otherwise...mostly clear with few/scattered
cumulus clouds over mountain peaks this afternoon and unrestricted
visibility through Saturday morning.

&&

Marine...
300 am...no marine weather hazards are expected through Tuesday.

&&

Beaches...
an enhanced southerly swell will continue higher than average surf
and strong rip currents at the beaches through this weekend. Surf
to 8 feet are expected in Orange County...with isolated sets to 7
feet forecast in San Diego County. Highest surf will be along
southerly facing beaches. A beach hazards statement and high surf
advisory is in effect through the weekend. See laxcfwsgx for details.

&&

Skywarn...
Skywarn activation is not requested. However weather spotters are
encouraged to report significant weather conditions.

&&

Sgx watches/warnings/advisories...
California...beach hazards statement until 9 am PDT this morning for the
Orange County coastal areas.

High surf advisory from 9 am this morning to 5 PM PDT Sunday
for the beaches in the Orange County coastal areas.

Beach hazards statement through Sunday afternoon for the San
Diego County coastal areas.

Pz...none.

&&

$$

Public...17
aviation/marine...jjt

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