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Weather Eye Its notoriously tricky to forecast snow its accumulation

first_img The snow had begun to drift by my window here in Vancouver as I write my column Wednesday afternoon. I mentioned in Tuesday’s column we would be in for another round of the white stuff. No freezing rain with this one.I also mentioned we could get upward of 6 inches in the county as I studied the latest weather information Monday afternoon. Soon afterward it appeared we would get much less, maybe an inch here in Clark County.At 1 p.m. the National Weather Service forecast office in Portland changed the winter weather advisory to a winter storm warning due to some intensification of the storm. The latest forecast was for 2-5 inches with the greatest south of the Columbia River. As you read this column you will know the outcome.It is always tricky to forecast snow locally, much less determine its depth. I remember back in February 1993 we had the cold air in place and a similar storm tracked south of Portland and little if any was expected. The result? Six inches! That happened several times over the years, the last time in 2014.Today things remain cool, or should I say cold? Overnight lows early Friday will be well down in the 20s, maybe teens in outlying areas. Then a weak weather system drops down the British Columbia coastline over the weekend and should bring us some light snow. Warmer air invades early next week, but then we may run a risk of cold weather as we approach the Christmas weekend. Patrick Timm is a local weather specialist. His column appears Tuesdays, Thursdays and Sundays. Reach him at http://patricktimm.com.last_img read more

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