By Kristina Pydynowski, Senior Meteorologist
April 12,2014; 9:11PM,EDT
Those basking in the warmth across the eastern half of the nation this weekend should not bury their jackets deep in the closet with dramatically colder air, and even snow for some, set to make a comeback.
The cold air from Canada will continue to blast to the south and east through Tuesday night, erasing the warmth giving residents a taste of what is to come in late spring/early summer.
The arrival of the cold blast will cause 20 to 30 degrees to be shaved off high temperatures from the previous day across most of the Plains, Midwest and Appalachians and 10 to 20 degrees along the East and Gulf coasts.
The cooler air will only stop short of reaching Miami and the rest of South Florida.
Upcoming Change in High Temperatures (°F)
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Forecast Temperature Maps
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Severe Weather Watches, Warnings
Residents should resist the urge to plant sensitive vegetation during the warm spell with subfreezing overnight lows set to return to the Plains--southward to Oklahoma and the Texas Panhandle, as well as the Ohio River and the Northeast.
The I-95 corridor from Boston southward will be the exception.
The clash of the invading cold and the warmth has set the stage for more severe weather, including tornadoes, to erupt across the Plains through this weekend with later Sunday proving to be the most active time period.
The severe weather danger will shift to the Deep South on Monday.
The same storm system triggering the severe weather will spread soaking rain across the Midwest and Northeast, potentially leading to some flooding problems. Drenching and locally gusty thunderstorms will move through the Southeast.
Enough cold air is plunging southward for snow to whiten the Front Range of the Rockies, including Denver, this weekend.
A bit of snow will also return to the upper Great Lakes on Monday, then may make yet another appearance in the eastern Great Lakes and the central and northern Appalachians Monday night through Tuesday night.
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