Winter Storm Forecast
…Organizing winter storm to impact much of the Eastern U.S….
…Arctic air set to infiltrate the Northeast in the wake of the system…
Precipitation will continue to expand and push eastward today along and
ahead of a frontal boundary draped from the Mid-Atlantic back toward the
lower Mississippi Valley. In the Gulf Mexico, another frontal boundary is
slowly lifting northward, helping to spread rain through the Southeast.
These two areas will merge off the East Coast later tonight and will
coalesce into a rapidly deepening system just southeast of New England.
With cold air in place to the north and northwest of the low center, light
to moderate snow is expected. Parts of southern New England and
eastern/southeastern NY may experience a period of heavy snow with
blustery winds as the low pressure deepens but pulls away from the coast
very early Friday, making travel difficult between New York and Boston.
To the south, the cold front will push through central and southern
Florida with little fanfare outside of some scattered showers but cooler
temperatures. Much colder air will usher into the East on Friday with many
areas 20-30 degrees below normal. Precipitation should wind down on Friday
as high pressure moves into the central Appalachians, setting up a very
cold night for many Northeast cities. Some record low temperatures are
In the Pacific Northwest, a front will move onshore later today with
rain/snow showers over the region, especially along and west of the
Cascades. On Friday the system will push eastward, spreading rain/snow
through the Bitterroots and into Wyoming. Cooler temperatures will follow
behind the front.
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– Winter Storm Hercules brings 2014’s first snow to the region through Friday.
– Rain changes to snow Thursday evening in northern Virginia, Maryland, Delaware and southern New Jersey.
– The worst of the storm for the region should be Thursday night.
– Friday morning Hercules begins to move away from the region with the snow ending in all areas by lunchtime.
– The heaviest accumulations occur in central and southern New York and central and southern New England with 8 to 15 inches possible.
– Moderate coastal flooding expected along the southern New England Coast.
– Travel (air and road delays) are expected.
– Blizzard conditions possible overnight into Friday morning for parts of southeast New England and Long Island.
– Accumulations in northern New York, northern New England, Pennsylvania, New Jersey and southeast New York should be 3 to 8 inches.
– Accumulations of 1 to 4 inches are possible in West Virginia, west and north Virginia, Maryland and Delaware.
– It continues to be bitterly cold in far northern New York and northern New England with highs Thursday of 0 to -15 degrees.
– Friday highs in the single digits and teens from Pennsylvania to new England
– Highs in 20s in the Baltimore-Washington area Friday.
– Friday night lows below zero in Boston and single digits in New York City.
– Winter Storm Hercules will depart the region overnight.
– Some lake-effect snow through Friday across northeast Ohio (several inches are expected).
– A minor weather system will produce snow from northern North Dakota to northern Michigan and freezing drizzle across much of Minnesota (including the Twin Cities) to western Wisconsin Friday.
– Windy conditions from the Plains to the Upper Midwest.
– Milder highs in the 30s and 40s in the northern Plains to the low 50s in the southern Plains.
– Highs only in the teens in the Great Lakes to the 20s in the Ohio Valley.
– A dangerous invasion of arctic air into the region late weekend to early next week (very low temperatures and wind chills).
– The region will be mainly dry Friday
– A few snow showers in the higher elevations from West Virginia to North Carolina early Friday.
– Windy conditions along the Appalachians and the Atlantic Coast.
– Chilly highs will be mostly in the 30s and 40s across much the region after a cold morning.
– Cool 50s across central Florida.
– Highs in the 50s to low 60s across most of Texas.
– The story of 2013 continues with most of the region remaining dry for the foreseeable future.
– Many areas of California and western Oregon set their driest year on record in 2013 and there is no relief in sight.
– Light rain and snow are likely in western and northern Washington, Idaho, Montana and northern Wyoming Friday.
– Gusty winds across the Rockies from Wyoming to New Mexico.
– Highs in the Northwest and Rockies should be in the 30s and 40s.
– Highs in the 50s and 60s extend from northern and central California southeast to southern New Mexico.
– Warm highs in the 70s occur in Southern California and southern Arizona.
– Light snow moves into the Denver, CO area Saturday.