Short Range Forecast Discussion
NWS Weather Prediction Center College Park MD
259 AM EST Mon Jan 22 2018
Valid 12Z Mon Jan 22 2018 - 12Z Wed Jan 24 2018
...There is a slight risk of severe thunderstorms over parts of Eastern
Texas and the Lower Mississippi Valley...
...Winter storm system to continue producing heavy snow, rain and freezing
rain from the Central Plains to the Upper Mississippi Valley, Great Lakes
and the Northeast...
...Heavy rain and snow possible over parts of the Pacific
Northwest/Northern California and Northern New England Coast...
Blizzard Warnings, Winter Storm Warnings and Winter Weather Advisories are
in effect from eastern Colorado to Upper Michigan - with a few counties
across upstate New York, Vermont and northern Maine. This storm will have
significant impacts on transportation; with many roads with treacherous or
impossible driving conditions.
Widespread snow and rain will continue to spread across the central and
northern states as a winter storm lifts northeast through the Midwest
today and through the Northeast by Wednesday. The snow will be heavy at
times over portions of the Central Plains and Upper Mississippi Valley
throughout the day before tapering off over the Central Plains tonight.
Snow will develop over the Upper Great Lakes and northern New England this
afternoon and will expand south and east to the lower lakes and Northeast
continuing into Tuesday and Wednesday. A narrow transition zone along the
front will support freezing rain before changing over to snow.
Rain will expand into the Ohio Valley/Lower Great Lakes this morning, into
Southern New England by this evening and into the Northern Mid-Atlantic by
early Tuesday. In the transition zone between the rain and snow,
rain/freezing rain will develop in bands across the Great Lakes today into
New England overnight Monday into Tuesday. Showers and thunderstorms will
move to parts of the Ohio Valley southward to the Eastern Gulf Coast and
to parts of the Mid-Atlantic into the Southeast by Tuesday morning.
Out West, upper-level energy will push inland over the Pacific Northwest
spreading rain and mountain snow from the Washington/California coast to
the Northern Plains by Tuesday. Snow is expected to be heavy over the
Cascades and Northern Intermountain Region over the next few days. Onshore
flow will increase Tuesday into Wednesday as the another Pacific system
approaches the Northwest.
Graphics available at www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php