656
FXUS66 KSGX 070552
AFDSGX
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN DIEGO CA
1052 PM PDT SAT JUN 6 2026
SYNOPSIS
NOT AS HOT THIS WEEKEND WITH BREEZY CONDITIONS ACROSS THE
MOUNTAINS AND DESERTS. TEMPERATURES WILL HOLD NEAR AVERAGE FOR THE
FIRST HALF OF THE WEEK AS A TROUGHING PATTERN LINGERS WITH A
DEEPER MARINE LAYER. HIGH PRESSURE MOVES IN BY WEDNESDAY INTO THE
LATTER HALF OF NEXT WEEK, BRINGING A WARMING TREND.
DISCUSSION...FOR EXTREME SOUTHWESTERN CALIFORNIA INCLUDING ORANGE
SAN DIEGO...WESTERN RIVERSIDE AND SOUTHWESTERN SAN BERNARDINO
COUNTIES...
UPDATED AVIATION AND MARINE DISCUSSION FOR 06Z TAF PACKAGE
AN AREA OF LOW PRESSURE IS MOVING INTO WESTERN WASHINGTON STATE
TODAY, BRINGING AN OPEN WAVE TROUGHING PATTERN ALONG THE WEST
COAST. THIS CONTINUES TO BRING GREATER ONSHORE FLOW AND SUBTLE
COOLING TO THE REGION TODAY WITH HIGH TEMPERATURES A FEW DEGREES
COOLER THAN YESTERDAY. THE MARINE INVERSION IS STILL STRONG, WHERE
LOW CLOUDS WILL SEE INTERMITTENT CLEARING. BREEZY WEST AND SOUTH
WINDS WILL OCCUR OVER THE DESERT SLOPES/PASSES INTO THE DESERTS
THROUGH THIS EVENING. MODELS SHOW GUSTS PRIMARILY NEAR 25-40 MPH,
LOCALLY NEAR 55 MPH IN THE SAN GORGONIO PASS.
AS THE LOW PRESSURE SYSTEM IN THE PACIFIC NW MOVES INLAND, WE
WILL SEE A FEW MORE DEGREES OF COOLING FOR INLAND AREAS FOR SUNDAY
AND MONDAY AS REINFORCING SHORTWAVE MOVES THROUGH TO THE NORTH.
MOST AREAS WILL BE NEAR AVERAGE WITH SOME INLAND VALLEY LOCATIONS
NEAR 5 DEGREES BELOW NORMAL AS LOW CLOUDS MOVE INTO THE COASTAL
AND WESTERN VALLEY AREAS EACH NIGHT AND MORNING. HIGHS IN THE 70S
AND 80S WILL OCCUR ACROSS MOST AREAS WITH HIGHS 95-100 DEGREES
ACROSS THE LOWER DESERTS.
BY WEDNESDAY, THE TROUGHING PATTERN TO THE NORTH WILL SHIFT
FURTHER INLAND AS A RIDGE OF HIGH PRESSURE AMPLIFIES OFF THE
COAST. THIS WILL BRING WARMER WEATHER ON WEDNESDAY, WITH SIMILAR
TEMPERATURES EXPECTED FOR THE REST OF THE WEEK AS THE SYSTEM
REMAINS OFF THE COAST. WE WILL CONTINUE TO MONITOR HOW WARM WE
BECOME, BUT SO FAR, NBM PREDICTIONS HAS HIGH TEMPERATURES AROUND 5
TO LOCALLY 10 DEGREES ABOVE NORMAL FOR THIS TIME PERIOD.
AVIATION
070600Z...COAST/VALLEYS...LOW CLOUDS BASED 1800-2300 FT MSL HAVE
QUICKLY SPREAD ABOUT 20 MILES INLAND THIS EVENING. CLOUDS ARE
STARTING TO SPILL INTO THE INLAND EMPIRE AND SHOULD FILL THE ENTIRE
COASTAL BASIN BY 09-10Z. VIS 4-6SM IN HIGHEST INLAND VALLEYS
(INCLUDING THE INLAND EMPIRE). SCATTER OUT INLAND TO THE COAST 16-
19Z, THOUGH SOME AREAS ALONG THE COASTLINE MAY NOT CLEAR UNTIL THE
EARLY AFTERNOON. 20-30% CHANCE FOR BKN CIGS ALL DAY AT KSAN. LOW
CLOUDS MOVE BACK INLAND STARTING 01-02Z MON WITH SLIGHTLY LOWER
BASES.
MOUNTAINS/DESERTS...VFR WITH SCT-BKN CLOUDS AOA 20000FT MSL THROUGH
SUNDAY MORNING. SOUTHWEST-WEST WINDS GUSTING 20-35 KNOTS ALONG
DESERT SLOPES AND LOCALLY INTO DESERTS THIS EVENING SLOWLY DIMINISH
THROUGH TONIGHT. WINDS OF SIMILAR INTENSITY PICK UP AGAIN FOR THE
SAME AREAS SUNDAY AFTERNOON. GUSTS MAY EXCEED 40 KTS THROUGH THE
BANNING PASS. MOD UP/DOWNDRAFTS AND POCKETS OF LLWS IN LEE (NORTH
AND EAST) OF MOUNTAINS.
MARINE
NO HAZARDOUS MARINE CONDITIONS ARE EXPECTED THROUGH WEDNESDAY NIGHT.
SKYWARN
SKYWARN ACTIVATION IS NOT REQUESTED. HOWEVER WEATHER SPOTTERS ARE
ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS.
SGX WATCHES/WARNINGS/ADVISORIES
CA...NONE.
PZ...NONE.
PUBLIC...APR
AVIATION/MARINE...KW
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page