Short Range Forecast Discussion
NWS Weather Prediction Center College Park MD
310 AM EST Wed Dec 02 2020
Valid 12Z Wed Dec 02 2020 - 12Z Fri Dec 04 2020
...Light to moderate snow downwind of the lower Great Lakes will gradually
taper off later today...
...Freeze Warnings in effect this morning across parts of the Southeast
into northern Florida...
...Heavy snow possible across portions of Kansas and Oklahoma later today
into early Thursday...
A powerful low pressure system that brought 2 to 4 inches of rain across
New England and upwards of more than a foot of snow to northeast Ohio has
begun to weaken and is in the process of exiting the region. As the
system moves further into eastern Canada, light snow combined with
lake-enhanced snow bands across the lower Great Lakes will shift from west
to east and gradually taper off today. Some leftover snow and gusty winds
will move across northern New England tonight. Mainly dry and breezy
conditions should return on Thursday but another disturbance could bring a
round of light wintry mixed precipitation across the Great Lakes into
northern New England Thursday night and into Friday morning.
Meanwhile, another low pressure system is developing over the central and
southern Plains in response to a cold upper-level low exiting the central
Rockies. Snow across the central High Plains will become more organized
across southern Kansas and western Oklahoma later today where more than 6
inches of accumulations are possible. The main energy of the system will
then dip further toward the western Gulf Coast tonight as it interacts
with an influx of moisture from the western Gulf of Mexico. Total
rainfall amounts of 1 to 3 inches could cause isolated flooding concerns
for areas that recently experienced heavy rain over this past weekend. By
Thursday, the heavy rain threat will shift eastward to the central Gulf
Coast but should begin to diminish as the day progresses. By Friday
morning, the northern extent of the rain should reach the Tennessee Valley
while some mixed rain and snow could reach the central Appalachians into
In coincidence with the first day of Meteorological Winter, much of the
Southeast and even northern Florida will experience another morning of
well below average temperatures where Freeze Warnings are in effect.
Temperatures aren't expected to dip below freezing across central and
southern Florida, but places such as Melbourne and Fort Myers could break
record low temperatures this morning.
Finally, elevated to critical fire risk is expected across southern
California through the workweek. This is due to offshore flow and
increasingly windy conditions caused by a strong high pressure system
building into the Great Basin and Rockies.
Graphics available at www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php