snow, cold, across the USA

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Sunday snow, chill by Mark Avery Sun Jan 20, 6:08 AM ET

West

Heavy snows will hit parts of the Mountain West over the next couple

of days. An upper level low is forecast to cut off from the main

circulation over the country in the next day or two near the West

Coast and bring a chance of rain and mountain snow to California for

much of the week ahead; in the mean time, snow is forecast over much

of the Northern Rockies and interior portions of the Pacific

Northwest, with rain along the immediate coast. The heaviest snows are

expected in western Wyoming and northeastern Utah, where a foot or

more of snow is possible. Rain and snow reaches the Four Corners in

earnest on Tuesday, with chances continuing through the remainder of

the work week. Highs will range from teens below zero in northeastern

Montana along the Canadian border to the 70s in southwestern Arizona.

Highs tomorrow will range from the single digits over much of Montana

and Wyoming to the 60s along the Mexican border from southeastern

California to southern New Mexico.

Northeast

Lake-effect snows will continue in the snow belts at the eastern ends

of Lakes Ontario and Erie today. Lake effect snow warnings and

advisories are posted in many of these areas. More lake-effect snows

are possible in these areas tomorrow before more widespread snows

reach the region with a frontal boundary moving through the region on

Tuesday. More lake-effect snows are possible on Wednesday, with snow

possible in parts of New England and the Appalachians on Thursday.

Afternoon highs are expected to remain below average for much of the

week ahead, with a slight bump above average expected on Tuesday.

Highs today will range from the single digits over northern Maine to

teens and 20s elsewhere. Highs tomorrow will range from the single

digits in northern Maine to the 30s in southern New Jersey and south

of the Mason-Dixon Line.

Midwest

Areas of snow are possible near the Great Lakes as well as in parts of

the Northern Plains today, while much of the rest of the Midwest

shivers with bone-chilling wind chills. Wind chill advisories are

posted for many areas, particularly east of the Mississippi River,

while advisories and warnings for snow extend along the Nebraska/South

Dakota border and in parts of Michigan (for lake-effect snows). Snow

spreads into the Central Plains, Mississippi Valley, and to the Great

Lakes tomorrow as an area of low pressure tracks up from the Texas

Panhandle towards the Great Lakes. Snow is also possible on Tuesday

near the Great Lakes and in the Ohio Valley. More snow showers are

possible near the Great Lakes on Thursday and in the Mississippi

Valley on Friday. High temperatures will generally stay below average

much of this week, with some moderation towards the end of the week.

Highs today will range from the teens below zero in eastern North

Dakota and northern Minnesota to the 40s in southern Kansas. Highs

tomorrow will range from the single digits below zero in northern

North Dakota to the 40s from southeastern Kansas through southern

Missouri to much of Kentucky.

South

Much of the South will remain dry today, except for a few snow

flurries in northeastern North Carolina and southeastern Virginia and

some rain showers in far South Florida. An area of low pressure moving

out of the Southern Plains will bring a chance of rain to much of

Texas and Oklahoma tomorrow which will spread across the Southeast on

Tuesday. An area of low pressure developing over the Gulf of Mexico

brings a chance of rain to Texas on Wednesday and across much of the

Southeast on Thursday. More showers are possible over the Southern

Plains on Friday. Highs today will range from the teens in the

mountains of western Virginia to the 60s in South Texas and South

Florida. Highs tomorrow will range from the 20s in the Oklahoma

Panhandle to the 70s in South Texas and South Florida.

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