000
FXUS66 KSGX 160422
AFDSGX

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN DIEGO CA
930 PM PDT SAT JUN 15 2013

.SYNOPSIS...
AREAS OF NIGHT AND MORNING COASTAL LOW CLOUDS WILL PREVAIL THROUGH
MOST OF NEXT WEEK...WITH A SLIGHT INCREASE IN THE AREAL COVERAGE
AROUND TUESDAY OR WEDNESDAY AS UPPER LEVEL LOW PRESSURE MOVES BY TO
THE NORTH. NEAR NORMAL TEMPERATURES WILL PREVAIL...EXCEPT FOR
SLIGHTLY BELOW NORMAL TEMPERATURES TUESDAY AND WEDNESDAY. LOCALLY
GUSTY WINDS WILL OCCUR IN THE DESERTS AND DESERT MOUNTAIN SLOPES AT
TIMES...STRONGEST TUESDAY AND WEDNESDAY.

&&

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

STRATUS WAS JUST OFF THE COAST AND SHOULD SPREAD OVER LAND THE NEXT
FEW HOURS. AIRCRAFT SOUNDINGS FROM KSAN HAVE THE MARINE INVERSION
BASE AROUND 1700 FEET ON AVERAGE...BUT KSNA HAS IT NEAR 1300 FEET.
EXPECT STRATUS TO GET INTO MOST AREAS W OF THE MTNS...BUT MOST PARTS
OF THE INLAND EMPIRE WILL HAVE STRATUS ONLY BRIEFLY.

A DEEP CLOSED LOW WAS NEAR 44N/140W WITH HIGH PRESSURE ALOFT OVER NW
MEXICO AND SLIGHTLY CYCLONIC FLOW OVER SO-CAL. THE MODELS HAVE
SLIGHT HEIGHT RISES FOR SUNDAY WHICH WILL TRANSLATE TO A MORE
SHALLOW MARINE LAYER...SO STRATUS MOST LIKELY WILL NOT MAKE IT INTO
THE INLAND EMPIRE SUNDAY NIGHT. LOCAL WRF TEMPERATURE PROFILES HAVE
A WEAKER INVERSION SUNDAY/MONDAY...SO GOOD CLEARING OF THE MARINE
LAYER STRATUS SHOULD OCCUR EACH DAY...ALONG WITH SLIGHT
WARMING...ESPECIALLY W OF THE MTNS. LOW HUMIDITY WILL CONTINUE OVER
THE MOUNTAINS/DESERTS...WITH MINIMUM RH VALUES BELOW 10 PERCENT IN
SOME LOCATIONS. AS THE CLOSED LOW MOVES INTO THE PAC NW TUE
NIGHT/WED...A WEAK SHORT WAVE WILL MOVE THROUGH CALIFORNIA AND BRING
SLIGHT COOLING AND A BIT DEEPER OF A MARINE LAYER FOR MORE NOCTURNAL
STRATUS IN THE VALLEYS...WITH A REVERSAL BACK TO THE WARMING AND
SHALLOWER MARINE LAYER BY THURSDAY AS THE UPPER LOW LIFTS INTO NORTH
INTO SW CANADA. WEAKLY CYCLONIC WEST FLOW ALOFT WILL MAINTAIN
SEASONAL WEATHER FRI THROUGH NEXT WEEKEND.

&&

.AVIATION...
160300Z...COAST/VALLEYS...BKN-OVC013-016 FT MSL TOPS 2500 FT MSL
SPREADING 25-45 SM INLAND THROUGH 14Z. SKIES CLEARING TO THE COASTAL
WATERS BTWN 14Z-18Z SUNDAY.

MTNS/DESERTS...SKC WITH UNRESTRICTED VSBY THROUGH SUNDAY.

&&

.MARINE...
INCREASING WINDS AROUND POINT CONCEPTION LATE MONDAY INTO TUESDAY
WILL BRING A FRESH SHORT-PERIOD NORTHWEST SWELL INTO THE OUTER
WATERS...PEAKING AT 8-9 FEET SOUTH OF SAN CLEMENTE ISLAND. NORTHWEST
WINDS WILL BE STRONGER IN THE OUTER WATERS TUESDAY AND WEDNESDAY
WITH 15-20 KT WINDS GUSTING TO 25 KT. THE COMBINATION OF THE
STRONGER WINDS AND THE BUILDING SHORT PERIOD SWELL WILL RESULT IN
CHOPPY SEAS OVER THE OUTER WATERS TUESDAY AND WEDNESDAY.

&&

.SGX WATCHES/WARNINGS/ADVISORIES...NONE.

&&

$$

PUBLIC...MAXWELL
AVIATION/MARINE...MOEDE