The Wenatchee World

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The latest extended forecast from The Weather Channel

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Air Stagnation Advisory issued December 17 at 9:42AM PST until December 19 at 12:00PM PST by NWS

..LIGHT WINDS AND INVERSIONS WILL PERSIST THROUGH MUCH OF THE WORKWEEK. THIS WILL LEAD TOWARD STAGNANT AIR CONDITIONS OVER MUCH OF CENTRAL AND NORTHEAST WASHINGTON. ...AIR STAGNATION ADVISORY REMAINS IN EFFECT UNTIL NOON PST FRIDAY... * AIR QUALITY...LIGHT WINDS AND STABLE CONDITIONS WILL INCREASE

Overnight

Lo33° Patchy Fog

Thursday

Hi38° Chance Rain/Snow

Thursday Night

Lo33° Rain/Snow Likely

Friday

Hi40° Rain/Snow Likely

Friday Night

Lo30° Mostly Cloudy

Saturday

Hi34° Rain/Snow Likely

Saturday Night

Lo32° Chance Rain

Sunday

Hi41° Chance Rain

Sunday Night

Lo35° Mostly Cloudy

Monday

Hi42° Partly Sunny

Potential failure situation developing at Wanapum Dam

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Uptate, 2:45 p.m. The crack discovered in a spillgate support pier at Wanapum Dam measures 2 inches wide by 65 feet long, a spokesman for the Grant County PUD said this afternoon.

The PUD will draw the reservoir behind the dam down another 14 feet by Tuesday for a total expected drawdown of 20 feet, PUD spokesman Tom Stredwick said this afternoon. The drawdown is to reduce pressure on the dam and help ensure the area remains stable. No further movement has been detected at the pier since the irregularity was detected Tuesday.

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