NORTHWEST OREGON AND SOUTHWEST WASHINGTON FORECAST DISCUSSION
NWS PORTLAND OR
AFDPQR 830 PM PST THU FEB 1 2001
THE APPROACHING FRONT AND SURFACE LOW ARE A LITTLE FASTER AND FARTHER
SOUTH THAN PREVIOUSLY PROJECTED AND IT APPEARS OREGON WILL GET A
LITTLE MORE FROM IT. NOAA P-3 RESEARCH AIRCRAFT SHOWED SOUTH WIND 62
KTS AT PRESSURE LEVEL 964 MILLIBARS...AT LOCATION 44 DEG 49 MIN N AND
125 DEG 54 MIN W. ISSUED A HWW FOR THE COAST AND HAVE ALREADY HAD
SUSTAINED 43 MPH AND GUSTS 64 MPH AT GARIBALDI. LOOKS LIKE THE FRONT
IS ABOUT 124 MILES WEST OF ASTORIA HEADED INLAND WITH RAIN BANDS
ALREADY TO THE CASCADES. THE FRONT WILL BE ALONG THE EAST SLOPES
OF THE CASCADES AROUND 12Z. GALE WARNING CONTINUE AHEAD OF THE FRONT
WITH A HEAVY SURF ADVISORY FOR THE COASTAL WATERS...FOR SWELL
EXPECTED FRIDAY THAT WILL BE GENERATED FROM THE TIGHT GRADIENT NEAR
THE LOW PRESSURE CENTER. SWELLS COULD REACH 20 TO 25 FEET ALONG THE
COAST PER WAVE WATCH III MODEL.
SHOWERS WILL COVER THE AREA UNDER COLD ADVECTION ON FRIDAY. PROBABLY
WILL NEED A SNOW ADVISORY IN THE CASCADES...WITH BEST ACCUMULATIONS
IN THE NORTHERN MOUNTAIN ZONES. ISSUED ANOTHER SPECIAL STATEMENT AT
THIS JUNCTURE AND WILL LET THE ADVISORY BE ISSUED CLOSER TO THE
EVENT. SHOWERS WILL CONTINUE INTO FRIDAY NIGHT...THEN DECREASE
SATURDAY. MODELS DIVERGE ON THE EXTENDED FORECAST AND NO CHANGES
THERE FOR NOW. WILLSON
AST +874 PDX +863 SLE +863 EUG +752
.KPDX...HIGH WIND WARNING SOUTH WASHINGTON AND THE NORTH AND CENTRAL
OREGON COAST.
.GALE WARNING CAPE SHOALWATER TO FLORENCE.
.HEAVY SURF ADVISORY FRIDAY CAPE SHOALWATER TO FLORENCE.