The Wenatchee World

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The latest extended forecast from The Weather Channel

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Overnight

Lo31° Partly Cloudy

Monday

Hi40° Chance Rain

Monday Night

Lo35° Chance Rain

Tuesday

Hi44° Chance Rain

Tuesday Night

Lo42° Chance Rain

Wednesday

Hi49° Chance Rain

Wednesday Night

Lo33° Slight Chc Rain

Thanksgiving Day

Hi43° Slight Chc Rain

Thursday Night

Lo35° Slight Chc Rain

Friday

Hi39° Chance Rain

A sailboat owned by Bryan Stockdale, Vantage, is left in the mud at the Vantage Riverstone Resort dock in Vantage on Monday, as up to 20 feet of water is let out of the Columbia River reservoir behind Wanapum Dam after a spillway pillar was discovered to be cracked at the dam last week. Garbage is seen that had been left in the water at the end of the dock.

A sailboat owned by Bryan Stockdale, Vantage, is left in the mud at the Vantage Riverstone Resort dock in Vantage on Monday, as up to 20 feet of water is let out of the Columbia River reservoir behind Wanapum Dam after a spillway pillar was discovered to be cracked at the dam last week. Garbage is seen that had been left in the water at the end of the dock.

On Monday, near Vantage, the Wanapum Dam spillway support, fourth support from the right, has a large crack beneath the water surface discovered last week. Columbia River water levels have been lowered, up to 20 feet on the upstream side of the dam, in order to relieve stress on the dam.

On Monday, near Vantage, the Wanapum Dam spillway support, fourth support from the right, has a large crack beneath the water surface discovered last week. Columbia River water levels have been lowered, up to 20 feet on the upstream side of the dam, in order to relieve stress on the dam.

People look for items normally underwater behind Wanapum Dam on Monday. A crack was discovered last week in one of the spillway supports and the water level of the Columbia River was lowered by as much as 20 feet.

People look for items normally underwater behind Wanapum Dam on Monday. A crack was discovered last week in one of the spillway supports and the water level of the Columbia River was lowered by as much as 20 feet.

What normally is a full channel of water for boats to pass through is now a small stream on Monday at Crescent Bar as up to 20 feet of the Columbia River has been drawn down behind Wanapum Dam.

What normally is a full channel of water for boats to pass through is now a small stream on Monday at Crescent Bar as up to 20 feet of the Columbia River has been drawn down behind Wanapum Dam.

With Wanapum Dam's spillway pillar cracked, the Columbia River water levels have been lowered, affecting even levels behind Rock Island Dam on Monday. The boat launch at Hydro Park has been closed.

With Wanapum Dam's spillway pillar cracked, the Columbia River water levels have been lowered, affecting even levels behind Rock Island Dam on Monday. The boat launch at Hydro Park has been closed.

With Wanapum Dam's spillway pillar cracked, the Columbia River water levels have been lowered, exposing the spillway at Rock Island Dam as seen on Monday.

With Wanapum Dam's spillway pillar cracked, the Columbia River water levels have been lowered, exposing the spillway at Rock Island Dam as seen on Monday.

Normally the boat access to docks at Crescent Bar, a lake is now a sliver of water under the bridge to the bar on Monday. With Wanapum Dam's spillway pillar cracked, the Columbia River water levels have been lowered.

Normally the boat access to docks at Crescent Bar, a lake is now a sliver of water under the bridge to the bar on Monday. With Wanapum Dam's spillway pillar cracked, the Columbia River water levels have been lowered.

A sailboat owned by Bryan Stockdale, Vantage, is left in the mud at the Vantage Riverstone Resort dock in Vantage on Monday, March 3, 2014, as up to 20 feet of water is let out of the Columbia River reservoir behind Wanapum Dam after a spillway pillar was discovered to be cracked at the dam last week. Garbage is seen that had been left in the water at the end of the dock.

A sailboat owned by Bryan Stockdale, Vantage, is left in the mud at the Vantage Riverstone Resort dock in Vantage on Monday, March 3, 2014, as up to 20 feet of water is let out of the Columbia River reservoir behind Wanapum Dam after a spillway pillar was discovered to be cracked at the dam last week. Garbage is seen that had been left in the water at the end of the dock.

A row of fruit tree stumps, normally under water, is exposed at Crescent Bar. With Wanapum Dam's spillway pillar cracked, the Columbia River water levels have been lowered.

A row of fruit tree stumps, normally under water, is exposed at Crescent Bar. With Wanapum Dam's spillway pillar cracked, the Columbia River water levels have been lowered.