Note that if drought conditions are not being experienced, or in the case of river flooding or heavy rain, this statement may be used to indicate river flows or flood potential.
000
FGUS76 KSEW 092326
ESFSEW
WAC009-027-031-033-041-045-053-057-061-067-073-101126-
HYDROLOGIC OUTLOOK
NATIONAL WEATHER SERVICE SEATTLE WA
326 PM PST SUN NOV 09 2008
...FLOODING IS POSSIBLE OVER PORTIONS OF WESTERN WASHINGTON LATE
TUESDAY THROUGH THURSDAY...
A STRONG WESTERLY JETSTREAM DEVELOPING OVER THE NORTHEAST PACIFIC
WILL DRIVE A COUPLE OF MOIST FRONTAL SYSTEMS ACROSS WESTERN
WASHINGTON EARLY THIS WEEK. THE FIRST STRONG WARM FRONT WILL SPREAD
AREAS OF HEAVY RAIN OVER THE MOUNTAINS LATE MONDAY NIGHT THROUGH
TUESDAY MORNING. STRONG SOUTHWEST FLOW ALOFT WITH THIS FRONT COULD
DROP BETWEEN 1 AND 2 INCHES OF RAIN OVER THE MOUNTAINS...WITH THE
HIGHEST AMOUNTS EXPECTED OVER THE OLYMPICS.
THE SECOND STRONGER FRONTAL SYSTEM WILL BRING HEAVY RAIN TO THE
MOUNTAINS TUESDAY NIGHT THROUGH EARLY WEDNESDAY AFTERNOON. FORECAST
MODELS INDICATE THAT STRONG SOUTHWEST TO WEST LOW LEVEL FLOW OF 50
TO 60 KNOTS COULD DROP ANOTHER 2 TO 4 INCHES OF RAIN. WITH MORE
WESTERLY FLOW EXPECTED WITH THIS SECOND SYSTEM...THE HEAVIEST RAIN
FALL ACCUMULATIONS WILL LIKELY BE OVER THE WESTERN OLYMPICS...THE
WILLAPA HILLS...AND THE CASCADES SOUTH OF SNOQUALMIE PASS. THE FAR
NORTH PART OF THE CASCADES MAY ALSO BE AFFECTED.
BETWEEN THE TWO FRONTAL SYSTEMS 3 TO 6 INCHES OF RAIN MAY FALL IN 36
HOURS BETWEEN LATE MONDAY NIGHT AND EARLY WEDNESDAY AFTERNOON.
RIVERS ACROSS WESTERN WASHINGTON WILL RISE SHARPLY THIS WEEK...AND
FLOODING MAY OCCUR IN SOME RIVERS FLOWING OFF THE OLYMPICS AS EARLY
AS TUESDAY AFTERNOON.
$$
KAM
WEATHER.GOV/SEATTLE
