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Warm air flowing north under clouds

Mon., May 17, 2010, 7:36 a.m.

One more day of warm weather will bathe the Inland Northwest while clouds build from a low pressure area moving onshore from the west.

A southerly flow has set up in advance of the core of the incoming Pacific Ocean low.

Highs today in the lower 80s should be accompanied by a 40 percent chance of scattered showers and even some thunderstorms after 11 a.m.

The highest chances of showers today will be along the Cascades.

The lows tonight should stay mild in the lower 50s.

The risk of showers continues on Tuesday and Tuesday night as temperatures begin to drop from their summer-like levels to normal and then below-normal later in the week.

Wind gusts to 20 mph are likely on Tuesday as cooler ocean air floods across the Cascades into the region.

A 60 percent chance of showers comes on Wednesday night when a colder air mass reaches the region.

By Thursday and Friday, the highs are expected to only reach the upper 50s. The overnight low on Thursday is predicted at 38 in Spokane.

John Livingston, meteorologist with the National Weather Service in Spokane, said that even colder temperatures in the middle 30s are likely in Spokane and Coeur d’Alene with frost possible, especially in valley areas to the north.

The cooler weather continues into Sunday as highs over the weekend reach only the upper 50s on Saturday and lower 60s on Sunday.

The high on Sunday at Spokane International Airport was 81, which was well off the record of 90 set in 2006.

The normal high for today is 67 with a normal low of 43.

At 7 a.m., it was 62 at the Spokane airport, 59 in downtown Spokane, 57 in Coeur d’Alene, 59 in Deer Park and 62 in Pullman.


 
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