Record-tying warmth to bid adieu

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WALLA WALLA — Well, it was nice while it lasted.

The freakishly warm weather we’ve enjoyed the past few days is headed out of town. Starting Thursday, expect temperatures to plummet by 20 degrees or more accompanied by rain and possibly even a snowflake or two by Friday night.

How warm has it been? Monday’s high of 71 tied the record high set in 1988 for that date and the average temperature for the first five days of November has been nearly 12 degrees above normal. The warmest November day in recent record was 80 degrees on Nov. 4, 1975.

But the high pressure responsible for the dry, mild days is going to give way to a deep low pressure system now en route to the Pacific Northwest from the Gulf of Alaska. The result will be much cooler temperatures than what has been experienced so far this fall.

According to the National Weather Service, snow levels will gradually fall from near 9,000 feet on Tuesday to below 2,000 feet by Friday evening. In the lower elevations rain will be the primary precipitation through Friday, but then light snow showers will also be possible Friday night.

Showers are forecast to taper off Saturday, but daytime highs will only be in the 40s with 30s in the mountains. The cooler temperatures are expected to last through beginning of next week with another storm system arriving Sunday night.

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