171 
FXUS66 KEKA 011201
AFDEKA

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE EUREKA CA
355 AM PST THU APR 1 2004

.DISCUSSION...FOLLOWED THE GFS MODEL THIS EVENING.  UPPER LEVEL 
TROUGH THAT IS OVER THE PACIFIC NORTHWEST MOVES INLAND AND THEN DIGS 
SOUTHWARD BECOMING A CUT OFF CLOSED LOW OVER SOUTHERN CALIFORNIA ON 
SATURDAY. TODAY...100-PLUS KNOT WINDS AT 250MB OVER THE EASTERN PART 
OF THE CWA WILL CAUSE BREEZY CONDITIONS OVER THE HIGHER TERRAIN. AS 
THE  LOW MOVES FURTHER SOUTH THE UPPER LEVEL WINDS SUBSIDE TO 75 
KNOTS ON FRIDAY AND THE INTERIOR WARMS UP. WITH THE UPPER LEVEL LOW 
DIGGING SOUTHWARD...THE TEMPERATURES WILL NOT WARM UP AS MUCH AS 
EARLIER THOUGHT. AT THE SURFACE...A THERMAL TROUGH DEVELOPS ALONG 
COAST...THIS WILL BRING BREEZY CONDITIONS TO THE COASTAL LOCATIONS 
AND OVER THE OFF SHORE WATERS. SATURDAY THE THERMAL TROUGH WEAKENS 
AND PUSHES INLAND...AND BY SATURDAY NIGHT WE HAVE WEAK COLD AIR 
ADVECTION OVER CWA...THE 1000-500MD THICKNESS LOWERS BY 60 METERS 
OVER THE CWA FROM SATURDAY NIGHT THROUGH MONDAY MORNING. 

IN THE EXTENDED PERIOD...SUNDAY...WEDNESDAY. WITH THE THERMAL TROUGH 
MOVING INLAND AND COOLER AIR MOVING ON SHORE...AND A WEAK SHORT WAVE 
MOVING ACROSS NORTHERN CALIFORNIA...THIS CHANGE IN THE WEATHER 
PATTERN WILL BRING THE RETURN OF MORNING LOW CLOUDS TO THE COASTAL 
LOCATIONS SUNDAY NIGHT...AND THE INTERIOR WILL HAVE COOLER 
TEMPERATURES. A WEAK FRONTAL SYSTEM MOVES ACROSS THE PACIFIC 
NORTHWEST TUESDAY NIGHT...WILL FORECAST A SLIGHT CHANCE OF LIGHT 
RAIN NORTH OF HIGHWAY 299 FOR TUESDAY NIGHT AND EARLY WEDNESDAY 
MORNING. HIGH PRESSURE REBUILDS OVER NORTHERN CALIFORNIA 
WEDNESDAY.   

&&

.SYNOPSIS...SURFACE HIGH PRESSURE WILL REMAIN OVER THE NORTHEAST 
PACIFIC FOR THE NEXT SEVERAL DAYS...ALLOWING THE AREA TO REMAIN DRY 
INTO EARLY NEXT WEEK. A CUT OFF UPPER LEVEL LOW PRESSURE SYSTEM WILL 
DEVELOP OVER NEVADA THROUGH TONIGHT. THIS LOW WILL THEN DRIFT INTO 
SOUTHERN CALIFORNIA ON FRIDAY AND SATURDAY.

&&

.EKA WATCHES/WARNINGS/ADVISORIES...
SMALL CRAFT ADVISORY...PT ST GEORGE TO PT ARENA OUT 60NM.

&&

$$
KENNEDY