AFDSEW

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SEATTLE WA
827 PM PDT SAT JUL 11 2020

.UPDATE...A FEW SHOWERS AROUND THE AREA THIS EVENING AS A FRONT
MOVES THROUGH TONIGHT. LIGHT SHOWER ACTIVITY AROUND INTO SUNDAY
MORNING WITH DRIER WEATHER BY LATE SUNDAY AFTERNOON AS RIDGING
BUILDS INTO WESTERN WASHINGTON WITH SOME SUNSHINE ACROSS THE AREA.

&&

.SYNOPSIS...A WEAK COLD FRONT WILL BRING SCATTERED SHOWERS TONIGHT
INTO SUNDAY. GENERALLY DRY AND SEASONABLE WEATHER EXPECTED FOR
EARLY NEXT WEEK ALTHOUGH SOME WEAK SYSTEMS MAY ALLOW FOR SCATTERED
SHOWERS AT TIMES.

&&

.SHORT TERM /TONIGHT THROUGH TUESDAY/...A COLD FRONT WILL MOVE
INLAND THIS EVENING BRINGING SHOWERS TO THE AREA. ALREADY SEEING
SHOWERS ALONG THE COAST THIS AFTERNOON PER LGX RADAR. SCATTERED
SHOWERS WILL CONTINUE OVERNIGHT AND INTO SUNDAY UNDER POST-FRONTAL
ONSHORE FLOW. WE MAY SEE SHOWERS ASSOCIATED WITH A CONVERGENCE
ZONE OVER THE CENTRAL SOUND THROUGH SUNDAY MORNING. DRIER WEATHER
IS EXPECTED SUNDAY AFTERNOON AS A PASSING UPPER LEVEL TROUGH
EXITS EAST. TEMPS ON SUNDAY REMAIN BELOW NORMAL WITH HIGHS IN THE
MID 60S TO LOWER 70S.

A RIDGE WILL BUILD OFFSHORE MONDAY AND TUESDAY WITH DRY NW FLOW
OVER WA. WE`LL SEE SLIGHTLY WARMER TEMPERATURES, TRENDING BACK
TOWARD NORMAL, ON TUESDAY. ONSHORE FLOW WILL KEEP THE COAST
COOLER AND CLOUDIER WITH TEMPS IN THE 60S. 33

.LONG TERM /WEDNESDAY THROUGH SATURDAY/...THE OFFSHORE RIDGE WILL
FLATTEN BY MIDWEEK, WITH THE FLOW OVER WESTERN WA BECOMING MORE
WESTERLY OR ZONAL. WEAK UPPER LEVEL DISTURBANCES MAY TRIGGER A
FEW SHOWERS THROUGH THE END OF THE WEEK WITH MOST OF THE ACTIVITY
IN THE CASCADES. TEMPERATURES REMAIN CLOSE TO NORMAL THROUGH THE
PERIOD. 33

&&

.AVIATION...WESTERLY FLOW ALOFT AS AN UPPER TROUGH MOVES THROUGH
THE AREA. VFR CIGS FOR MOST THIS EVENING WITH MVFR ACROSS THE
SOUTH SOUND AND COAST. LIGHT SHOWERS AROUND INTO TONIGHT WITH
DRIER WEATHER INTO SUNDAY. CONVERGENCE ZONE ACTIVITY POSSIBLE
SUNDAY MORNING ACROSS THE CENTRAL PUGET SOUND. MVFR LATE TONIGHT
INTO SUNDAY MORNING WITH VFR FOR THE AFTERNOON. SOUTH WINDS 8 TO
14 KNOTS INTO TONIGHT WITH LIGHTER WINDS AROUND 5 TO 10 KNOTS
INTO SUNDAY AFTERNOON.

KSEA...VFR CIGS THIS EVENING WITH MVFR TONIGHT AS A FRONT MOVES
THROUGH. A FEW SHOWERS AROUND INTO SUNDAY MORNING. VFR CIGS FOR
SUNDAY AFTERNOON. SOUTH WINDS 8 TO 14 KNOTS TONIGHT. SOUTH WINDS 5
TO 10 KNOTS BY SUNDAY AFTERNOON.

&&

.MARINE...A FRONT WILL MOVE THROUGH THE AREA INTO TONIGHT. SMALL
CRAFT ADVISORY WINDS TONIGHT FOR THE CENTRAL AND EASTERN PORTIONS
OF THE STRAIT OF JUAN DE FUCA. ONSHORE FLOW THROUGH EARLY NEXT
WEEK WITH TIMES OF SCA WINDS FOR THE STRAIT OF JUAN DE FUCA WITH
INCREASING ONSHORE FLOW.

&&

.HYDROLOGY...THE DAILY HYDROLOGY DISCUSSION HAS ENDED UNTIL THE
START OF THE NEXT RAINY SEASON; IT WILL ONLY BE UPDATED AS NEEDED
UNTIL THEN.

&&

.SEW WATCHES/WARNINGS/ADVISORIES...
WA...NONE.
PZ...SMALL CRAFT ADVISORY UNTIL 5 AM PDT SUNDAY FOR CENTRAL U.S.
     WATERS STRAIT OF JUAN DE FUCA-EAST ENTRANCE U.S. WATERS
     STRAIT OF JUAN DE FUCA.

&&