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Nat'l Weather (255pm) October 29 2004


Jeb
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Two systems in play

2:55 P.M. ET 10/29/2004

 

M. Ressler, Meteorologist, The Weather Channel

 

 

 

Midwest

Low pressure will track from western Lake Superior toward southwest Quebec Saturday as the cold front zips eastward through Michigan, Indiana, Ohio and Kentucky. Some still feisty showers and thunderstorms will precede the front and the rain will taper off over northern Minnesota. Showers will linger through the day around the Great Lakes. Northerly winds in the upper Mississippi Valley and westerly winds across the southern Great Lakes and northern Ohio Valley will gust at times to between 35 and 40 mph. Temperatures will be near average Saturday over the Plains and the northern half of the Mississippi Valley but still 5 to 15 degrees above average across Michigan and the Ohio Valley. After a mostly dry Sunday across the much of the Plains and Midwest, heavy rain and thunderstorms will surge northward from the southern Plains and lower Mississippi Valley into Kansas, Missouri and Illinois on Monday while showers develop all the way into the Great Lakes and across the Ohio Valley. Showers will linger in parts of the Ohio Valley right through midweek.

 

West

With one big storm finally out of the way for the weekend, a new cold front will rapidly move across the Northwest Saturday, exiting into the northern Plains by early Sunday and pushing southeastward through the Four Corners' states during the second half of the weekend. Showers and mountain snow will extend from Washington and Oregon to western portions of Montana and Wyoming on Saturday. Snow levels Saturday will range from 2500 feet in the Washington Cascades to 4500 feet in the Siskiyous to 4000 feet in the northern Rockies. On Sunday, snow showers will expand from the northern Rockies into the mountains of Utah and Colorado. A cold northeasterly upslope flow will develop in Wyoming during the second half of the weekend with snow for Casper and Cheyenne. Eastern Colorado will turn colder and moist northeast winds will bring the season's first snow to Denver Sunday night and early Monday. Yet another front will bring increasing rains and rising snow levels to Washington and the far northern Rockies on Monday. The precipitation and front will gradually sink southward into Oregon and southern Idaho Monday night into Tuesday. The Southwest will get a respite from the rain and mountain snow and a chance to recover from the recent flooding and mudslides.

 

South

From its anchor in the southern Plains, the cold front will stall west to east across the South this weekend as it bumps into the stubborn warm high pressure aloft. Thunderstorms will be limited on Saturday along and just ahead of the front. Rain and thunderstorms may blossom over parts of the southern Plains and the western side of the lower Mississippi Valley by Sunday and Monday as low pressure takes shape on the languishing front. Colder air will rush into the southern Plains Monday as warm air again surges northward toward the Ohio Valley. The wet system will slowly move eastward Tuesday and Wednesday and finally exit the Southeast Thursday morning with much cooler air finally replacing the recent warmth over the Deep South.

 

Northeast

A cold front will sweep through the Northeast and Mid-Atlantic late Saturday through Sunday morning with the bulk of the showers and thunderstorms preceding the front on Saturday. A few of the storms could contain gusty winds especially across Upstate New York and Pennsylvania later Saturday. Ahead of the cold front, the warm front will hang up over eastern New York and New England which will mean more 40s and 50s for highs while the Mid-Atlantic states will climb into the 70s and 80s. On Sunday, showers will linger east of the Lakes and over northern New England with temperatures still above average along the East Coast. After a dry Monday, some showers could return Election Day.

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