Up to 3 feet of snow for OR, WA Cascades

Could bring ‘significant’ snowfall to Portland/Vancouver metro area. But what does ‘significant’ mean? One foot? Two feet? What?
NATIONAL WEATHER SERVICE PORTLAND OR

STRONG WINTER STORM TO IMPACT SOUTHWEST WASHINGTON AND NORTHWEST OREGON TONIGHT THROUGH WEDNESDAY… BRINGING HEAVY SNOW TO THE CASCADES AND THE COLUMBIA RIVER GORGE… POSSIBLE LIGHT ACCUMULATIONS DOWN TO THE VALLEY FLOOR.

A STRONGER LOW PRESSURE SYSTEM WILL MOVE IN FROM THE SOUTHWEST TUES NIGHT AND WEDS… WILL RESULT IN MORE HEAVY SNOW FOR THE CASCADES AND COLUMBIA RIVER GORGE…AND MAY BRING SIGNIFICANT ACCUMULATIONS TO THE LOWLANDS…INCLUDING THE PORTLAND AND VANCOUVER METRO AREA.

DETAILS ARE STILL VERY UNCERTAIN ESPECIALLY FOR THE LOWLANDS…BUT THE POTENTIAL IS THERE FOR THIS TO BE A SIGNIFICANT WINTER WEATHER EVENT.

INCLUDING THE CITIES OF…MOUNT ST. HELENS…TOUTLE…ARIEL… COUGAR

SNOW INCREASING LATE THIS AFTERNOON AND EVENING… CONTINUING THROUGH TUES MORNING. A BRIEF LULL POSSIBLE TUES AFTERNOON AND EVENING BEFORE HEAVY SNOW RETURNS TUES NIGHT AND WEDS.

ACCUMULATION…18 TO 36 INCHES BY WEDNESDAY EVENING.

HEAVY SNOW WILL MAKE TRAVEL VERY DIFFICULT IN THE CASCADES TONIGHT THROUGH WEDNESDAY.

http://www.nws.noaa.gov/view/states.php?state=OR&map=on

Thanks to Kenneth Lund for this link