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    Last Week of Winter Highlights

    3/11/2013, 7:21:33 AM

    Monday, 11:35 a.m.

    Spring officially arrives next Wednesday morning at 7:02 EDT. And with the potential of another snowstorm lurking around the corner for the start of next week in the Northeast, I think we can safely say spring is not coming early this year, plain and simple. Winter may not even be done at that point!

    In the meantime, the final days of winter will be busy. Some highlights of the week ahead:

    1) Taste of mild, early spring weather will end after tomorrow. A strong cold front is moving east of the Mississippi Valley now, and it will make steady progress this afternoon and tonight across the Ohio and Tennessee valleys as well as the Deep South, and it should clear the East Coast later tomorrow. Here's the latest NAM surface forecast for tomorrow evening:

    2) Cold shot follows across the South into the East. Look at the forecast temperature departures from normal for Thursday:

    3) West warms under ridging. Look at the 500mb forecast for Thursday:

    It's not a strong ridge per se, but strong enough to push the jet stream north into Vancouver and British Columbia. That means most areas from the interior Northwest on south and east will be balmy with some degree of sunshine.

    4) Wave of low pressure could mean snow from North Dakota to New England. It may not be a heavy snow, but it will further delay the arrival of spring.

    5) Bigger storm looming for early next week. I won't say much on this today. Suffice it to say another storm is likely. The track and timing are all over the place, so there's no clear-cut solution. But a storm is likely, and given the blocking downstream over the Atlantic, there's every reason to believe it could mean yet more snow, and potentially a bigger event than will be seen Friday into Saturday.

    The storms will become the focus of attention going forward. Stay tuned!

    The views expressed are those of the author and not necessarily those of AccuWeather, Inc. or AccuWeather.com

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