TV and Oregonian are beginning to hype the windstorm coming but the snow is still in the picture.
Here is a discussion from NOAA, snow seems of least concern...
AREA FORECAST DISCUSSION
FXUS66 KPQR 301700 AFDPQR AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE PORTLAND OR 830 AM PST FRI NOV 30 2007 .
SYNOPSIS...DECEMBER TO START...WILD. COLD AIR MASS OVER THE REGION TODAY INTO SAT WILL BE REPLACED WITH A MILD WET PACIFIC AIR MASS BY SUNDAY. HOWEVER...TRANSITIONS ARE ALWAYS MESSY AS THIS WILL BE...WITH SNOW POTENTIAL SAT AND SAT NIGHT ACROSS THE INTERIOR. BY SUNDAY...
STRONG WARM WINDS WILL BUFFET THE REGION... WITH A LOT OF RAIN ARRIVING AS WELL. && .SHORT TERM...FAIR TRANQUIL TODAY...WITH JUST A FEW SHOWERS PERSISTING ON THE RADAR. WITH THE WEAK CIRCULATION OFFSHORE... STILL GETTING SCATTERED SHOWERS WITH THE ONSHORE
FLOW OVER THE SOUTH HALF OF THE FORECAST AREA. LIGHT OFFSHORE OVER THE NORTH WITH CLOUDS AND SPOTTY DRIZZLE. WILL GRADUALLY BRING PRECIPITATION TO AND END THIS MORNING...THOUGH CAN NOT RULE OUT AN ISOLATED SHOWER DURING THE DAY. STILL THINK BEST THREAT IS OVER THE CASCADES. MEANWHILE...THE NORTHERLY
FLOW ACROSS WESTERN CANADA CONTINUES TO PUSH COLD AIR INTO THE PAC NW. MODELS CONTINUE TO SPIN UP ANOTHER SURFACE LOW OFF THE S BC COAST TODAY AND TONIGHT...DROPPING IT S TO JUST OFF THE N WASH COAST ON SAT. MAIN RESPONSE WILL BE TO INCREASE THE W TO SW 850 MB
FLOW ACROSS OUR AREA. WITH COLD AIR IN PLACE OVER THE INTERIOR...ESPECIALLY IN THE GORGE...NORTH WILLAMETTE VALLEY AND INTERIOR OF SW WASHINGTON...PRECIPITATION SHOULD BEGIN AS SNOW SAT MORNING. STILL THINK THERE IS TOO MUCH BLEEDING OF SOUTHERLY
FLOW ACROSS THE S HALF OF THE FORECAST AREA WHICH WILL KEEP PRECIPITATION AS RAIN SOUTH OF SALEM. AS THE DAY PROGRESSES...THIS BLEEDING OF WARMER AIR IN THE LOWER LEVELS WILL TURN THE SNOW TO RAIN OVER THE NORTH AREAS.
ANY SNOW THREAT IN THE INTERIOR LOWLANDS...EXCEPT GORGE ...WILL END BY LATE SAT AFTERNOON. FOR THE SNOW PRONE LOWLANDS ON SAT...WILL KEEP ACCUMULATIONS VERY MINOR IF ANY...BUT WILL LIKELY SEE 1 INCH ON THE HIGHER HILLS. LOT DEPENDS ON WHEN...HOW FAST AND HOW MUCH MARINE AIR FILTERS BACK INTO THE REGION SAT AFTERNOON. IN THE GORGE...AIR MASS WILL REMAIN COLD...AND WITH LIGHT EASTERLY
FLOW...SNOW IS GOOD BET. CURRENTLY HAVE SNOW ADVISORY THERE WHICH SEEMS GOOD. SNOW WILL TRANSITION OVER TO SLEET/RAIN MIXTURE LATE SAT NIGHT. SUN MORNING...MOISTURE TURNS TO ALL RAIN. SNOW LEVELS REMAIN LOW IN THE CASCADES SAT NIGHT...AND WILL RISE...BUT BIG RISES DO NOT OCCUR UNTIL SUN AFTERNOON. HAVE WINTER STORM
WATCH FOR THE S WASH CASCADES...BUT WILL EXPAND TO INCLUDE THE NORTH OREGON CASCADES AND THE UPPER HOOD RIVER VALLEY. SHOULD KEEP SNOW AT PASSES WELL THROUGH THE MORNING...THEN RISE ABOVE PASSES IN THE AFTERNOON. STRONG WARM
FRONT WILL LIFT ACROSS THE REGION ON
SUNDAY...WITH SNOW LEVELS RISING TO 7000 FEET BY SUN EVENING. RESULT WILL BE ANY PRECIP WILL FALL AS RAIN. AT SAME TIME...WILL SEE MUCH MORE WIND INCREASING ON THE COAST...WITH BREEZY CONDITIONS DEVELOPING INLAND. DO NOT HAVE
HIGH WIND WATCHES ON COAST YET...BUT WILL ISSUE WITH THE AFTERNOON PACKAGE. THE
STRONG SW FLOW WITH PLENTY OF MOISTURE ENTRAINED IN WILL MAKE FOR AN ACTIVE BEGINNING TO THE WEEK. FCSTR...ROCKEY .LONG TERM...MODEL TRENDS BEYOND THIS POINT HAVE NOT BEEN CONSISTENT...WITH MID RANGE MODELS CARRYING DIFFERING SOLUTIONS THROUGH THE END OF THE WEEK. MODELS VARY AS THEY DEAL WITH THE MOISTURE REMAINS FROM THE TRANSFORMED TYPHOONS MITAG AND HAGIBIS WHICH ARE NOW IN THE WESTERLY
FLOW OVER THE WESTERN PAC. BOTTOM LINE... A LOT OF TROPICAL MOISTURE IS POISED TO ARRIVE IN THE PAC NW NEXT WEEK. HAVE KEPT FORECAST THE SAME FROM TUESDAY ONWARD FOR CONSISTENCY. &&
Snow or Big Blow
Boats
Linear Mode
