Full Notification

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PORTLAND OR
512 AM PST SUN NOV 22 2015

...COLDEST WEATHER SO FAR THIS SEASON TO ARRIVE BY TUESDAY AND
CONTINUE INTO THE THANKSGIVING WEEKEND...

THE FIRST SIGNIFICANT COLD SNAP OF THE SEASON IS EXPECTED TO
ARRIVE MONDAY NIGHT AND TUESDAY. THE COLD AIR WILL ARRIVE BEHIND A
SHARP COLD FRONT WHICH IS EXPECTED TO MOVE ACROSS SOUTHWEST
WASHINGTON MONDAY AFTERNOON AND NORTHWEST OREGON MONDAY EVENING.
BELOW NORMAL TEMPERATURES ARE EXPECTED TO LINGER WELL INTO THE
THANKSGIVING HOLIDAY WEEKEND.

SNOW LEVELS WILL START OFF BETWEEN 4000 AND 5000 FEET AHEAD OF THE
FRONT MONDAY...THEN PLUMMET TO AROUND 1500 FEET AS SHOWERS
CONTINUE IN THE COLD AIR BEHIND THE FRONT MONDAY NIGHT AND
TUESDAY. THIS IS LOW ENOUGH TO AFFECT SOME COAST RANGE PASSES AS
WELL AS THE CASCADE FOOTHILLS.

WHILE SNOWFALL AMOUNTS WILL VARY...EARLY THANKSGIVING TRAVELERS
PLANNING A TRIP ACROSS THE COAST RANGE OR INTO THE CASCADES SHOULD
BE PREPARED FOR WINTER TRAVEL CONDITIONS. ACCUMULATING SNOW COULD
ALSO AFFECT PORTIONS OF INTERSTATE 5 SOUTH OF EUGENE TUESDAY AND
TUESDAY NIGHT.

SHOWERS WILL TAPER OFF TUESDAY NIGHT AS COLD HIGH PRESSURE BUILDS
INTO THE PACIFIC NORTHWEST. TEMPERATURES ARE EXPECTED TO FALL
QUICKLY TUESDAY NIGHT...POSSIBLY CAUSING ICY CONDITIONS FOR ALL
ELEVATIONS ACROSS SOUTHWEST WASHINGTON AND NORTHWEST OREGON.

COLD AND BLUSTERY WEATHER IS EXPECTED TO FOLLOW...CONTINUING WELL
INTO THE THANKSGIVING WEEKEND. TEMPERATURES MAY STRUGGLE TO RISE
ABOVE 40 DEGREES FOR THE LOWLANDS...WITH WIND CHILLS DIPPING INTO
THE TEENS AND 20S FOR MANY. EAST WINDS ARE EXPECTED TO BECOME
STRONG THROUGH THE COLUMBIA GORGE...WITH GUSTY WINDS POSSIBLY
AFFECTING THE PORTLAND METRO AREA BY THANKSGIVING DAY AND
CONTINUING FOR A GOOD PORTION OF THE HOLIDAY WEEKEND.

THOSE PLANNING TRAVEL THIS HOLIDAY WEEKEND SHOULD STAY TUNED TO
THE WEATHER BY VISITING WWW.WEATHER.GOV/PORTLAND OR THEIR FAVORITE
MEDIA OUTLET AS THIS SITUATION EVOLVES.