Weather 10-22-10

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An early season winter storm is set to bring areas of moderate to heavy wet snow Friday followed by potential record cold temperatures Saturday through Monday to the Inland Northwest. Northcentral Washington weather forecast for today expect mostly sunny skies, a light and variable wind with afternoon high temperatures mainly in the lower 50’s.

By Friday, big weather changes. The Columbia Basin and Wenatchee Valley will see cloudy skies, a 90% chance of rain mixed with snow and afternoon high temperatures MUCH cooler, only in the upper 30’s. Because temps. will be in the upper 30’s, not much snow accumulation is expected In Wenatchee and Moses Lake. The same can’t be said for higher elevations in our area including the Waterville Plateau and Methow Valley where 3-6” of snow is possible and a Winter Weather Watch is in place.

By Saturday and the upcoming weekend, cold high pressure plunging into British Columbia, Alberta and Montana will deliver unseasonably cold air to the Inland Northwest. Biting north winds will blow on Saturday as a result of the northerly pressure gradient and low pressure shearing across southern Idaho into the central Rockies.

On both Saturday and Sunday, Northcentral Washington can expect mostly sunny to sunny skies but cold with afternoon high temperatures only around 40 degrees. Winds on Saturday will northerly up to 10 mph at times. Very chilly temperatures are also expected each night with temperatures dropping down into the lower 20’s. Don`t leave your pumpkins on the front porch people and pick your apples today. Sprinkler systems, RV plumbing, and other outdoor water systems that are not winterized may be damaged this weekend.

Then by Monday and into mid-week we will see high pressure take back control of our weather with mostly sunny skies and a slow warming trend. Lower 40’s for highs on Monday, mid to upper 40’s on Tuesday and back into the 50’s by the time we get to Wednesday.