a well defined low pressure system slowly tracking eastward across the Mid-Atlantic region and slowly exiting out to sea by Sunday evening. The result has been copious amounts of rainfall from the southeast coast and Ohio Valley to southern New England. In fact, the rainfall from this event alone has resulted in some across the East Coast setting new annual rainfall records.
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A quick moving low pressure system will result in light snow this morning which transitions to rain later this morning into early afternoon, with a low to moderate potential for a light snow accumulation before changeover to rain. Local snow amounts of 1 to 2 inches cannot be ruled out, particularly across southwest Connecticut.
Accumulating snow from eastern New Mexico to Arkansas appears likely Friday into Saturday with snow totals of 3 to 6 inches, with locally higher amounts possible especially over the Texas Panhandle. South and east of the snow, a band of potentially hazardous freezing rain from roughly Lubbock, TX to Oklahoma City and into the Ozarks of northern Arkansas with accumulations in the .10 to .25 inch range is possible.
Snow will edge northward Saturday night, starting across the High Country of North Carolina then spreading across the entire area Sunday morning. Sunday morning the upper level low tracks over Tennessee and Kentucky increasing moisture transport over the wedge. The combination of upslope flow, strong warm air advection and isentropic lift will bring moderate to heavy snow to areas along and south of highway 460.
A Pacific system will bring gusty winds, moderate to heavy rain, and high elevation snow to California tonight which will shift to the southern California for Wednesday. This may cause travel impacts due to snow and debris flow flooding on recent burn scars. Higher elevation snow for the mountains of southern California and the Sierra Nevada range can also be expected, although accumulations should remain fairly light as a whole through much of Thursday.
...Expect hazardous winter travel conditions from the Southern Plains to the Mid-Atlantic Coast, with significant snow and ice in the Southern Appalachians... A strong storm over the Central Gulf Coast will move eastward to the Southeast Coast by Sunday morning then move northeastward out over the Atlantic Ocean by Monday morning. The system will produce rain and snow over the northwestern edge of the precipitation shield
The concern for tonight and Saturday will be severe weather and heavy rainfall which is expected to impact areas of the southern Plains, lower Mississippi Valley and Gulf Coast states as deepening low pressure near the Oklahoma and Texas panhandles ejects off to the east overnight and then toward the Midwest on Saturday. Widespread showers and thunderstorms will develop along and south of the front overnight.