Heavy Lake Effect Snow and Bitterly Cold Temperatures

A bitterly cold airmass will settle over much of the central and eastern U.S over the next several days. Well below normal temperatures and cold wind chills will be common. In addition, heavy lake effect snow will be possible especially over western New York where up to two feet is forecast by late Thursday.
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Hazardous Weather Conditions

Last Update: 252 AM CST THU FEB 11 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: A 30.4 INCH HIGH IS OVER THE DAKOTAS WITH ITS RIDGE EXTENDING TO THE GULF COAST WHILE A 29.9 INCH LOW IS OVER OKLAHOMA. THE LOW DISSIPATES OVER TEXAS THIS AFTERNOON. THE HIGH BECOMES CENTERED OVER THE OHIO RIVER VALLEY THIS AFTERNOON AS WELL. TONIGHT...A 30.0 INCH LOW FORMS OVER SOUTHEAST ONTARIO...DRAGS A COLD FRONT DOWN THE LAKE FRIDAY...AND DEEPENS TO 29.7 INCHES AS IT REACHES NEW ENGLAND FRIDAY NIGHT. THE LOW THEN MERGES WITH A STRONGER LOW OVER THE ATLANTIC. A 30.9 INCH HIGH BUILDS OVER THE PLAINS FRIDAY AFTERNOON AND EVENING AND WEAKENS TO 30.6 INCHES AS IT MOVES OVER THE WESTERN GREAT LAKES SATURDAY EVENING. THE HIGH BECOMES CENTERED OVER THE CENTRAL ATLANTIC COAST SUNDAY NIGHT.

Today
Northwest winds 15 to 25 kt diminishing to 10 to 20 kt...and then becoming west late in the afternoon. Snow showers this morning...then chance of snow showers this afternoon. Waves 4 to 6 ft occasionally to 8 ft subsiding to 2 to 4 ft.
Tonight
West winds 10 to 20 kt increasing to 15 to 25 kt. Chance of snow showers. Waves 3 to 5 ft occasionally to 7 ft.
Friday
Northwest winds to 30 kt becoming gales to 35 kt late in the afternoon. Freezing spray in the afternoon. Waves 4 to 7 ft occasionally to 9 ft building to 7 to 10 ft occasionally to 13 ft.
Friday Night
Northwest gales to 35 kt. Heavy freezing spray. Snow showers likely in the evening...then snow showers overnight. Waves 8 to 12 ft occasionally to 15 ft.
Saturday
Northwest winds to 30 kt diminishing to 15 to 25 kt in the afternoon. Freezing spray in the morning. Snow showers in the morning...then snow showers likely in the afternoon. Waves 7 to 10 ft occasionally to 13 ft subsiding to 5 to 8 ft occasionally to 10 ft.
Saturday Night
Northwest winds 10 to 20 kt backing to southwest 5 to 10 kt overnight. Waves 4 to 6 ft occasionally to 8 ft subsiding to 2 to 4 ft.
Sunday
South winds 10 to 20 kt increasing to 15 to 25 kt in the afternoon. Chance of snow. Waves 1 to 3 ft building to 3 to 5 ft occasionally to 7 ft.
Monday
Southwest winds 10 to 20 kt. Chance of snow. Waves 2 to 4 ft.
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ABOUT THIS FORECAST

Last Update: 252 AM CST THU FEB 11 2016
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