Increasing Risk for Flash and River Flooding Through the Weekend

A storm system will track across the central U.S. and set the stage for severe thunderstorms and widespread heavy rainfall through the weekend. There will be a threat for flash and river flooding for portions of the Southern Plains into the Upper Midwest.
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Last Update: 904 AM CDT FRI APR 28 2017

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Chicago, IL Local Forecast Office

6NM SE Evanston IL

Marine Zone Forecast

WAVES ARE PROVIDED AS A RANGE OF SIGNIFICANT WAVE HEIGHTS, WHICH IS THE AVERAGE OF THE HIGHEST 1/3 OF THE WAVES, ALONG WITH THE AVERAGE HEIGHT OF THE HIGHEST 10 PERCENT OF THE WAVES WHICH WILL OCCASIONALLY BE ENCOUNTERED.

...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH SUNDAY AFTERNOON...
Rest Of Today
Variable winds 5 to 10 kt becoming northeast 10 to 15 kt early this afternoon. Chance of showers this afternoon. waves 1 to 3 ft.
Tonight
Northeast winds 10 to 20 kt gradually increasing to 20 to 25 kt by the pre-dawn hours. Chance of showers...mainly this evening. Waves 2 to 4 ft building to 4 to 6 ft occasionally to 8 ft by the pre-dawn hours.
Saturday
Northeast winds to 30 kt. Chance of showers in the morning...then showers in the afternoon. Waves building 6 to 9 ft occasionally to 11 ft.
Saturday Night
Northeast winds to 30 kt. Occasional gale force gusts to 35 kt. Rain showers and a chance of thunderstorms. Waves 6 to 9 ft occasionally to 11 ft.
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ABOUT THIS FORECAST

Last Update: 904 AM CDT FRI APR 28 2017
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