Short Range Forecast Discussion
NWS Weather Prediction Center College Park MD
300 AM EST Sat Jan 07 2023

Valid 12Z Sat Jan 07 2023 - 12Z Mon Jan 09 2023

...Relentless parade of cyclones from the Pacific will bring more flooding
rains and mountain snows to the West Coast with main focus across northern
California...

...A low pressure wave will trigger showers and thunderstorms across the
Deep South tonight...

...Light mixed rain and snow expected to track across the Midwest to the
northern Mid-Atlantic...

The stormy and unsettled weather pattern that has been impacting the West
Coast is expected to persist as a parade of cyclones from the Pacific
Ocean continues to aim at the West Coast.  The heavy precipitation edging
into northern California this morning will be reinvigorated by tonight as
the next energetic system moves rapidly toward the coast in the wake of
the current system.  This latest surge of moisture will likely dump
another few inches of rain across parts of northern California through
tonight, with heavy snow arriving across the high elevations of the
interior mountains, including the Sierra Nevada, by early on Sunday.  A
lull in the heavy precipitation is expected later on Sunday into Sunday
evening.  However, the next system in line is forecast to bring a potent
surge of moisture once again toward northern California by Monday morning.
Additional flooding issues can be expected across northern California
today with a break in the precipitation later on Sunday before the next
onslaught of heavy precipitation and strong gusty winds arrive early on
Monday.

Over the central portion of the country, a low pressure system is forecast
to track eastward into the Mid-Mississippi Valley on Sunday before
reaching the East Coast Sunday night.  Showers and thunderstorms are
expected to develop across the Deep South tonight ahead of the trailing
cold front.  The thunderstorms are expected to head further northeast
toward the Tennessee Valley Sunday morning with diminishing intensities. 
Colder air to the north of the low track will support light amounts of
mixed rain and snow across the central Plains to the Midwest today, across
the Ohio Valley on Sunday, and into the northern Mid-Atlantic Sunday
night.  By Monday morning, the precipitation should be in the process of
moving offshore as a coastal low is forecast to form just off the
Mid-Atlantic coast.

Kong


Graphics available at
https://www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php