The gates from the Arctic swung wide open over the weekend, sending dangerously cold air plunging through western Canada into the northern Plains and Upper Midwest.
Meanwhile, according to the South Regional News story, the cold press has slowed through the Mississippi and Tennessee valleys, leaving the Southeast warm and mostly dry.
The spread of cold air and resisting warm air holding over the Southeast will create a weather battle zone through the week and into next weekend. A fast jet stream, separating the dramatically different air masses, is set up from Southern California to the Great Lakes and New England and has set the track for a series of storms.
The Severe Weather Center lists the wind chill- and winter weather-related watches, warnings and advisories in effect across Related New
A storm over the Gulf Coast will be far-reaching today. A mix of winter precipitation is spreading into the East.
A thin band of snow will fall from central and northern Ohio and across the northern two-thirds of Pennsylvania. Snow will reach into southeastern New York, and by the afternoon, sleet and snow will spread from north to south and will mix in with rain falling in New York City. Philadelphia will have a messy mix of rain, sleet and snow throughout the day.
South of the Mason-Dixon line, mostly rain and showers will form. A corridor of ice between the rain and snow will extend from northeastern Texas along the mid-Mississippi and Ohio valleys into southern Pennsylvania. Parts of Delaware and Maryland will have some mixing with sleet and freezing rain.
Utility crews across New England are scrambling to restore power as the cold air marches into the East. The Maine Emergency Management Agency reported on Sunday that approximately 67,600 customers in the Central Maine Power (CMP) service area remained without power.
While the bitterly cold air spreads from the Plains toward the East Coast and the nasty mix of wintry weather develops along a corridor stretching from Texas to the mid-Atlantic, some snow will continue falling through the Sierra today along the Grapevine in Southern California and into the central and southern Rockies.
The West Regional News story reports that the snow today will pile on top of very heavy snow that fell on Monday. The snow will add an additional 1 to 3 inches today into Wednesday morning.
Snow levels along the Grapevine dropped as low as 4,000 feet on Monday, which led to hazardous driving conditions along Interstate 5, the major north-south route from Southern California to the rest of the state. Heavy snow fell very quickly with snowfall rates of up to one foot per half an hour in the Running Springs area of San Bernardino County Monday.
Snow amounts over the 24-hour period ending at 9:00 p.m. PST Monday were estimated to be 58.0 inches at Pascoes Snotel in California and 51.0 inches at Farewell Gap Snotel in California.
A soaking rain in the lower elevations on Monday led to flash flooding and mudslides in areas that were burned by the wildfires earlier in the autumn. A couple of showers will occur over the lower elevations today, and additional rainfall will contribute to flooding concerns.
Meanwhile, the Midwest Regional News story reports the life-threatening cold and extreme AccuWeather.com RealFeel® temperatures will linger over the northern Plains today. Anyone outdoors for even a brief period could be exposed to frostbite or hypothermia in a matter of minutes.
Subzero RealFeel® temperatures reported Monday include:
Havre, Mont.: -60 degrees
Inetrnational Falls, Minn.: 42 degrees
Denver, Colo.: -39 degrees
Wausau, Wis.: -36 degrees
Cheyenne, Wyo.: -34 degrees
Omaha, Neb.: -33 degrees
Chicago, Ill.: -22 degrees
The cold air pushed into the southern Plains. Early Monday, Denver set a new daily record low temperature (-19 degrees), shattering the previous record of -6 that had stood since 1951.
According to the Southwest Regional News story, cold air spread into the Desert Southwest Monday. The high in Phoenix reached only the upper 50s. Snow was falling much of Monday morning in Albuquerque, N.M.
More storms will invade the West this week. One storm will target the Northwest with more snow for Seattle and Portland. Meanwhile, yet another storm will slam into California Wednesday into Wednesday night with locally heavy rain and mountain snow forecast for the Southland.
The storm moving through California Wednesday will spread snow, rain and a wintry mix into the Midwest by late Thursday and lasting into Friday. Late in the week, the messy weather will reach the East with the potential for snow for much of New England into the weekend.