073 
FXUS66 KPQR 302136
AFDPQR

NORTHWEST OREGON AND SOUTHWEST WASHINGTON FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PORTLAND OR
300 PM PDT MON JUN 30 2003

.SYNOPSIS...POST FRONTAL SHOWERS ARE DECREASING AS SURFACE HIGH
PRESSURE STRENGTHENS THIS EVENING. THE FORECAST AREA WILL BE
TRANSITIONING INTO AN ONSHORE FLOW PATTERN BEGINNING TONIGHT AND
CONTINUING THROUGH MONDAY...WITH MORNING CLOUDS AND AFTERNOON
SUNSHINE.

.DISCUSSION...
.SHORT TERM...VISIBLE SATELLITE IMAGERY SHOWS BREAKS BECOMING MORE
EVIDENT IN THE CLOUD COVER OVER THE FORECAST AREA THIS AFTERNOON.
SHOWERS OVER THE AREA ARE DECREASING AS THE MAIN AREA OF ECHOS SHIFTS
NORTHEASTWARD.

A RETURN TO A COOL MARINE INFLUENCE WILL RETURN TONIGHT. A SURFACE
HIGH WILL BECOME STATIONARY OVER THE NE PAC...KEEPING THE AREA IN
WEAK TO MODERATE ONSHORE FLOW. THIS WILL KEEP MARINE CLOUDS OVER THE
INLAND AREAS FOR THE NIGHTTIME AND EARLY MORNING HOURS...THEN
BREAKOUT WITH SUNSHINE BY AFTERNOON. THIS PATTERN WILL CONTINUE
THROUGH THURSDAY.

.LONG TERM...GFS IS STILL FLIP-FLOPPING ON THE WEAK FRONT ON FRI
NIGHT/SAT...WITH THE 12Z RUN KEEPING THE MOISTURE NORTH OF OUR AREA.
THE WORST CASE SCENARIO WOULD ONLY GIVE PRECIP TO THE NORTH COAST. AM 
NOT GOING TO CHANGE THE FORECAST TREND AT THIS POINT...WILL WAIT FOR
BETTER CONFIRMATION ON THIS SYSTEM BEFORE CHANGING CURRENT FORECAST.
EXTENDED FORECAST WILL CONTINUE ONSHORE FLOW PATTERN WITH MORNING
CLOUDS AND AFTERNOON SUNSHINE.

AST 001010  PDX 000000  SLE 000000  EUG 000000

.PQR...NONE.
$$