National Short Range Forecast Discussion
Short Range Forecast Discussion
NWS Weather Prediction Center College Park MD
418 AM EDT Fri Apr 16 2021
Valid 12Z Fri Apr 16 2021 - 12Z Sun Apr 18 2021
...Snow over the central High Plains gradually tapers off later today
while higher elevations wet snow spreads across the interior Northeast...
...Focus of showers and thunderstorms shifts from the southern Plains
today to along the Gulf Coast during the weekend...
An upper-level low responsible for the snow across the central Rockies and
nearby High Plains will slowly weaken as it heads toward the Ohio Valley
during the next couple of days. The snow currently in these areas will
gradually taper off as the day progresses. Some of the snow is expected
to linger over the Colorado Rockies and then drift south into New Mexico
during the weekend near a frontal boundary. Meanwhile, a swath of rain
will move eastward across the central Plains while some embedded strong
thunderstorms move through eastern Texas into the lower Mississippi
Valley. As the upper low moves toward the Ohio Valley, the focus of
showers and thunderstorms will shift from the southern Plains today to
along the Gulf Coast during the weekend. The highest chance of seeing
heavy rainfall will be from central to eastern Gulf Coast as a low
pressure wave forms along a nearly stationary front and then tracks
Meanwhile, a compact coastal storm is developing just off the New England
coast ahead of an upper-level low heading very slowly to east across the
lower Great Lakes. The storm will result in gusty winds and locally heavy
rainfall across southeastern New England today. Farther inland, the
presence of colder air will result in higher elevation wet snow across
interior New England where 4 to 10 inches of accumulations are expected
today. The storm is forecast to gradually move eastward into the Gulf of
Maine on Saturday as the precipitation over New England slowly tapers off.
Cool and damp conditions should continue into Sunday due to a lingering
Elsewhere, lighter rain will move across portions of the Ohio/Tennessee
Valleys, the central Appalachians and into the Southeast on Saturday.
Over parts of the Southwest and Southern Rockies, dry and windy weather
will help elevate the risk of wildfire today.
By Sunday morning, the next surge of cold air from Canada should reach the
northern High Plains where mixed rain and snow develop along with gusty
winds and falling temperatures.
Graphics available at www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php