National Weather at 140pm November 27 2004

[Jeb]

One storm heads east as a new storm dives into the Southwest

1:40 P.M. ET 11/27/2004

 

M. Ressler, Meteorologist, The Weather Channel

 

 

 

Midwest

A strengthening and increasingly windy storm is swinging from the Upper Midwest toward James Bay in Canada. Wet snow is blanketing eastern Minnesota, northwestern Wisconsin and western Upper Michigan. The western U.P. will be the big snow winner with possibly over 12 inches by Sunday morning. Meanwhile, rain is shifting eastward both along and well ahead of the front from the mid-Mississippi Valley to the Great Lakes and Ohio Valley and will rendezvous with the Northeast Sunday. On Sunday, only gusty northwest winds and snow showers will be left around the Great Lakes. As the Midwest dries out and in some cases digs out during the second half of the weekend, snow will already be developing across Nebraska and northernmost Kansas as the Southwest storm begins to take center stage. In the coming week, the Southwest storm will track across country exiting the Midwest by midweek and spreading another possibly significant swath of snow from Kansas to southern Michigan and dumping more rain on the mid-Mississippi and Ohio Valleys. Temperatures will be increasingly below average from the central Plains into the southern Great Lakes and Ohio Valley. On Wednesday, a clipper-type low pressure area will track along the Canadian border bringing a few inches of snow to North Dakota and northern Minnesota. The low pressure area and snow will move eastward across the northern Great Lakes on Thursday. Otherwise, the region will be much drier the second half of the upcoming week.

 

Northeast

After a dry Saturday across most of the Northeast, a front will bring locally-inch-plus heavy rain to the region tonight and Sunday. As the rain moves in, south-to-southeast winds especially across West Virginia, western Pennsylvania and western New York will increase to between 20 and 30 mph. By Sunday, the rain will focus on the Chesapeake Bay, Delaware Valley, New York State and western New England with gusty winds from out of the southeast for cities such as Philadelphia, New York, and Boston. The rain will exit New England Monday morning, but return midweek as the Southwest storm finally arrives. Except for Sunday where temperatures over New England will be 5 to 10 degrees above average, the region will generally see temperatures 5 degrees either side of average through midweek which means 30s and 40s north to 50s and low 60s southern Virginia.

 

South

A quick moving front will sweep a band of rain and even a few thunderstorms across the Southeast tonight. Rainfall will range anywhere from a quarter of an inch to an inch and a half. Most of the South will be rain-free on Sunday, but, remember last week, the wet stormy setup will begin anew on Monday. Heavy rain will develop from eastern portions of Oklahoma and Texas, through the lower Mississippi Valley, into the western Tennessee Valley while snow blankets parts of the southern high Plains. The drenching wet weather will shift eastward across the South Tuesday and Wednesday before coming to an end on Thursday. More severe thunderstorms and flooding are possible. Several locations in eastern Texas will add to their wettest November on record before the month closes. The South will get a chance to dry out on Thursday and Friday before yet another wet storm possibly organizes from the lower Mississippi Valley eastward next Saturday. Temperatures will be up to 23 degrees below average in southern high Plains Monday and Tuesday. Below average temperatures will follow the storm across the South Wednesday and Thursday.

 

West

An intensifying storm will slide into the Southwest Sunday. Showers and mountain snow will move into Southern California before ending and leaving only gusty winds behind on Sunday. Heavy snow is on the increase across Nevada, much of Colorado, Utah, northern Arizona and northern New Mexico while showers increase across the desert areas. Denver should pick up at least several inches of snow by Monday while heavy snow is forecast for southeast Wyoming. The snow will continue over the Four Corners' states Monday into Tuesday. Many mountain locations from the Wasatch Mountains of Utah to the San Juan Mountains of Colorado to the Sangre de Cristo Mountains of New Mexico could pick up 1, 2 or more feet of snow by Tuesday. A new showery system will hit the West Coast from north of San Francisco to Vancouver Island on Tuesday. An upper-level disturbance will guide the showers gradually southward along the West Coast Wednesday through Friday. Temperatures will be 10 to 20 degrees below average across the Southwest quadrant of the nation during the first part of the week, but slowly rebound toward average Wednesday through Friday.