Heavy rain and isolated severe storms in portions of the West. Severe Weather Possible in the Plains Saturday.

A storm system will bring rain and thunderstorms to much of the Intermountain West and northern High Plains. A few severe thunderstorms with large hail and damaging winds are possible from northeast California to Wyoming. Heavy rain could lead to flash flooding in some of the western states. Severe weather will be possible in the Plains Saturday.
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Hazardous Weather Conditions

Last Update: 838 AM CDT FRI MAY 6 2016

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Northern Indiana Local Forecast Office

10NM WSW Saint Joseph MI

Marine Zone Forecast

WAVES ARE PROVIDED AS A RANGE OF SIGNIFICANT WAVE HEIGHTS...WHICH IS THE AVERAGE HEIGHT 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.

Synopsis: AN AREA OF HIGH PRESSURE AVERAGING 30.1 INCHES STRETCHES FROM THE WESTERN GREAT LAKES SOUTH TO THE GULF OF MEXICO AND WILL DRIFT SOUTH OF THE GREAT LAKES LATER TODAY. MEANWHILE...A LOW PRESSURE OF 29.6 INCHES OVER WESTERN ONTARIO WILL MOVE TO QUEBEC LATE TONIGHT...WITH A TRAILING COLD FRONT MOVING ACROSS LAKE MICHIGAN EARLY SATURDAY. A 30.0 INCH HIGH WILL BUILD ACROSS THE CANADIAN PRAIRIES OVER THE WEEKEND THEN MOVE INTO THE WESTERN GREAT LAKES ON SUNDAY. THE HIGH WILL MOVE TO THE EASTERN GREAT LAKES EARLY NEXT WEEK WHILE LOW PRESSURE OF 29.3 INCHES EJECTS NORTHEAST FROM THE SOUTHERN PLAINS.

Rest Of Today
South winds 10 to 15 kt increasing to 10 to 20 kt this afternoon. Waves 1 to 3 ft building to 2 to 4 ft.
Tonight
South winds 10 to 20 kt veering to west. Chance of showers and thunderstorms overnight. Waves 2 to 4 ft.
Saturday
Northwest winds to 30 kt becoming north. Chance of showers and thunderstorms in the morning...then chance of thunderstorms in the afternoon. Waves 3 to 5 ft occasionally to 7 ft building to 4 to 7 ft occasionally to 9 ft.
Saturday Night
North winds 15 to 25 kt backing to west 5 to 10 kt overnight. Waves 3 to 5 ft occasionally to 7 ft subsiding to 2 to 4 ft.
Sunday
West winds 10 to 15 kt veering to northeast. Waves 1 to 3 ft.
Sunday Night
East winds 10 to 15 kt becoming southeast. Waves 1 to 3 ft.
Monday
Southeast winds 10 to 15 kt becoming east 10 to 20 kt. Chance of showers. Waves 1 to 3 ft.
Tuesday
East winds 10 to 20 kt. Showers likely with a chance of thunderstorms. Waves 2 to 4 ft.
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ABOUT THIS FORECAST

Last Update: 838 AM CDT FRI MAY 6 2016
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