Short Range Forecast Discussion
NWS Weather Prediction Center College Park MD
400 AM EDT Sun Oct 30 2022

Valid 12Z Sun Oct 30 2022 - 12Z Tue Nov 01 2022

...Flash flooding and severe thunderstorm threat across the central Gulf
Coast states will diminish today as a low pressure system exits to the
northeast...

...Unsettled weather will gradually spread east across the eastern U.S.
through Tuesday morning...

...A cold front will bring increasingly widespread rain and high elevation
snow into the Pacific Northwest and the northern Rockies late this weekend
into early next week...

A low pressure system over the mid-South continues to be the main weather
maker in the U.S. this Sunday morning.  The most active weather associated
with this system is expected to be across the central Gulf Coast states
where the threat of severe weather and heavy rain could lead to local
flash flooding issues this morning.  An area of moderate to locally heavy
rain is also expected farther north across the Ohio Valley today as the
low pressure center approaches.  The low pressure system is forecast to
gradually weaken as it moves eastward into the East Coast through the next
couple of days and splits into two weaker systems.  The threat of severe
thunderstorms and heavy rain are expected to lessen as scattered showers
and some embedded thunderstorms move across the Ohio Valley,
central/southern Appalachians, and the interior Southeast on
Monday/Halloween, shifting into the Mid-Atlantic by Tuesday morning.

Meanwhile, more active weather is forecast to move into the Pacific
Northwest with the approach of the next cold front from the northeastern
Pacific.  Rain at lower elevations and mixed precipitation at higher
elevations will expand across the region beginning tonight through Monday.
 As the cold front itself moves onshore on Monday, snow levels will lower,
together with a period of heavy snow developing at higher elevations. 
More than a foot of snow is forecast for the northern Cascades and
portions of the northern Rockies.  A cool air mass will filter into the
Pacific Northwest behind the front while southerly winds ahead of the
front will bring a warming trend into the northern Plains.  High
temperatures will reach 15-20 degrees above normal (into the 60s and 70s)
for much of the Central U.S. on Monday and Tuesday.

Across southern Texas, a low pressure center developing near the tail end
of a stationary front across the Gulf of Mexico is forecast to lift
northward and bring an increasing chance of rain into the region by Monday
night into early Tuesday.

Kong


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