Area Forecast Discussion
Issued by NWS San Diego, CA

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000
FXUS66 KSGX 291528
AFDSGX

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN DIEGO CA
827 AM PDT FRI MAY 29 2015

.SYNOPSIS...HIGH PRESSURE ALOFT WILL BRING WARMER WEATHER THROUGH
SATURDAY AND KEEP NIGHT AND MORNING LOW CLOUDS AND FOG CLOSER TO
THE COAST THAN EARLIER THIS WEEK WITH PATCHY DENSE FOG POSSIBLE.
A TROUGH OF LOW PRESSURE WILL MOVE OVER THE WEST COAST EARLY NEXT
WEEK INCREASING ONSHORE FLOW...DEEPENING THE MARINE LAYER...AND
INCREASING WEST WINDS ACROSS THE MOUNTAINS AND DESERTS. OVERALL...
DRY WITH TEMPERATURES NEAR SEASONAL NORMALS.

&&

.DISCUSSION...FOR EXTREME SOUTHWESTERN CALIFORNIA INCLUDING ORANGE...
SAN DIEGO...WESTERN RIVERSIDE AND SOUTHWESTERN SAN BERNARDINO
COUNTIES...

MARINE STRATUS WAS WIDESPREAD EARLY THIS MORNING FROM THE CA BIGHT...
EXTENDING WELL INTO THE COASTAL VALLEYS. THERE WERE REPORTS OF
PATCHY FOG AND DRIZZLE WEST OF THE MTS AS WELL. THE 12Z MIRAMAR
SOUNDING HAD AN 8 DEGREE C INVERSION BASED NEAR 2000 FT. MSL. WINDS
WERE LIGHT...EVEN IN SOME OF THE REMOTE WIND PRONE AREAS.

A SHORTWAVE RIDGE IS BUILDING OVER THE REGION TODAY THROUGH
SAT. THIS WILL HELP TO LOWER THE MARINE LAYER AND BRING ADDITIONAL
WARMING INTO THE VALLEYS AND DESERTS. NEAR THE COAST...THE MARINE
LAYER WILL KEEP TEMPERATURES MORE MODERATE. AS THE INVERSION
STRENGTHENS...PARTIAL CLEARING MAY RESULT ALONG THE IMMEDIATE COAST
EACH AFTERNOON...BUT MOST AREAS SHOULD SEE AT LEAST A FEW HOURS OF
SUN. THE WARMEST DAY IS EXPECTED TO BE SAT...WITH SOME COOLING
EXPECTED SUN AND BETTER COOLING NEXT WEEK AS THE RIDGE MOVES EAST
AND A TROUGH MOVES OVER THE WEST.

WINDS WILL BE GUSTY OUT OF THE WEST AGAIN EARLY NEXT WEEK ACROSS THE
MTS/DESERTS AS THE TROUGH MOVES INLAND. TEMPERATURES WILL BE A FEW
DEGREES ABOVE AVERAGE INLAND FOR THE NEXT FEW DAYS...THEN FALL BACK
A FEW DEGREES NEXT WEEK AS THE ONSHORE FLOW AND MARINE LAYER RAMP
UP.

&&

.AVIATION...
291500Z...LOW CLOUDS COVER MOST AREAS WEST OF THE MTNS...WITH BASES
AROUND 1200 FEET MSL...TOPS REACHING TO 2000 FEET AND VIS BELOW 5SM
ALONG INLAND EDGE WHERE CLOUDS AND TERRAIN INTERSECT. MOSTLY CLEAR
TO THE COAST BETWEEN 18-19Z...BUT SOME BEACHES MAY NOT CLEAR
COMPLETELY OR FOR VERY LONG. LOW CLOUDS WILL PUSH ASHORE AFTER 03Z
SAT WITH BASES SLIGHTLY LOWER AT AROUND 1000 FEET MSL...NOT
EXTENDING QUITE AS FAR INLAND OVERNIGHT.

OTHERWISE...MOSTLY CLEAR WITH UNRESTRICTED VIS THROUGH TONIGHT.

&&

.MARINE...

800 AM...NO HAZARDOUS MARINE WEATHER IS EXPECTED THROUGH TUESDAY.

&&

.SGX WATCHES/WARNINGS/ADVISORIES...
CA...NONE.
PZ...NONE.
&&

$$

PUBLIC...JAD
AVIATION/MARINE...PG


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