Short Range Forecast Discussion
NWS Weather Prediction Center College Park MD
256 AM EST Sun Jan 26 2020
Valid 12Z Sun Jan 26 2020 - 12Z Tue Jan 28 2020
...Multiple storm systems to cause wet and snowy conditions across the
Pacific Northwest & northern Rockies...
...Scattered snow showers to stick around in northern and central
Appalachians, Great Lakes...
...A pair of low pressure systems will bring showers and thunderstorms to
The Northwest U.S. will brace for several rounds of storms over the next
few days. Coastal ranges and valleys of the Pacific Northwest will witness
periods of rain day after day with rainfall amounts averaging 1 to 2
inches. The higher elevations of the region's coastal front could see
rainfall totals in excess of 3 inches through Tuesday. In the Cascades of
Washington and Oregon, snow will pile up quickly with snow amounts being
measured in feet in the higher elevations. Pacific moisture associated
with these storms will spill east into the northern Rockies where valley
showers and mountain snow is also a good bet through Tuesday.
As the weekend storm system in the East tracks through Maine on Sunday,
snow showers and lake effect snow bands will stick around across the Great
Lakes, eastern Ohio Valley, and the central and northern Appalachians
through Tuesday. The heaviest snowfall will be located downwind of Lakes
Erie and Ontario where cumulative amounts through Tuesday will range
between 6 to 12 inches. Downeast Maine will see locally heavy rainfall
early Sunday morning but drier conditions will quickly move in before
midday, although a few spotty rain or snow showers across central New
England cannot be ruled out.
Down south, a surface low pressure system will be responsible for the
development of scattered showers and thunderstorms from east Texas and the
Lower Mississippi Valley this morning, then across the central Gulf Coast
by this afternoon. While the thunderstorm threat should diminish tonight,
passing showers will continue across the Deep South tonight and eventually
reach the Southeast by Monday. The best chance for thunderstorm activity
on Monday will reside across central and southern Florida. Some of the
southern Appalachians could even see a wintry mix develop Monday morning.
By Tuesday, an upper level disturbance in the Southwest will spawn a new
storm system in the southern Plains leading to another round of showers
and thunderstorms across the South Central region.
Graphics available at www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php