As colder air seeps in from the north and west, a swath of snow and wintry mix will extend northeastward causing slippery travel from part of the Central states to New England prior to the weekend.
A series of storms will roll out from the Southwest through next week with multiple rounds of snow and ice.
One of these storms Friday and Friday night will spread snow and ice along a swath reaching along the I-70 corridor from Missouri to southwestern Pennsylvania and over part of the I-80 and I-90 corridors from Indiana to northern Ohio, northern Pennsylvania and upstate New York.
The snow hit the Central states first on Thursday and will expand into the central Appalachians Friday and then parts of New England Friday night.
According to Expert Senior Meteorologist Henry Margusity, "With the amount of moisture available to this system and the energy release from a pronounced temperature contrast, localized bursts of very heavy snow are possible."
Within this zone, a general 1 to 6 inches of snow is forecast with local amounts up to 10 inches possible. Much of the snow will fall in only a few hours.
The cities forecast to receive accumulating snow include Tulsa, Okla., St. Louis, Indianapolis, Columbus, Ohio, Pittsburgh and Albany, N.Y.
A narrow zone of ice is likely to overlap and occur south of the accumulating snow area. A delay in or a more shallow push of cold air could mean the difference between rain, significant ice and accumulating snow in some communities.
The worst of the ice storm is expected to focus from central Kentucky to northeastern Texas. Enough ice can accumulate on trees and utility lines in these areas to cause blocked roads and regional power outages for days.
Mostly rain is forecast to fall over the I-95 corridor from Washington, D.C., to Philadelphia and New York City as the first of the storms slices northeastward Friday into Saturday. However, some wet snow and sleet can mix in at the tail end. In Boston, enough snow and sleet can fall to coat roads late Friday night into Saturday morning.
Another storm in the series will cause snow, ice and rain to reload over the South Central states this weekend before rolling toward the Northeast. That storm is likely to bring most significant snow, ice and slippery travel to the I-95 Northeast cities.
The risk of flooding downpours and gusty thunderstorms will spread toward southern Florida as a tropical disturbance spreads northwestward from Cuba.
Following a tropical threat for the United States Gulf coast next week, an uptick in tropical systems will continue for the next six to eight weeks.
After showers threaten to spoil outdoor plans over the weekend, Monday will feature great weather for the bank holiday in Wales and England.
On the heels of deadly Typhoon Mindulle, Typhoon Lionrock is poised to make landfall in Japan early next week with heavy rainfall, damaging winds and an inundating storm surge.
Relief from the heat baking Germany this weekend will come by early next week, but not before violent thunderstorms threaten northern areas to end the weekend.
Lake Okeechobee, FL (1949)
Hurricane sends 155-mph winds against levees but the disaster of 1928, when the levees broke, was not repeated.
Kiana, AK (1976)
A weak tornado occurred, about 2.9 miles north of the Arctic Circle.
Elizabeth, PA (1979)
A heavy thunderstorm at Elizabeth, PA, 20 miles SE of Pittsburgh, tore the roof off an apartment building and downed about 100 trees. Trees were also knocked over at McKeesport, PA.