Short Range Forecast Discussion
NWS Weather Prediction Center College Park MD
254 AM EST Sat Nov 26 2022

Valid 12Z Sat Nov 26 2022 - 12Z Mon Nov 28 2022

...There is a Slight Risk of excessive rainfall over parts of the
Western/Central Gulf Coast through Sunday morning...

...Heavy snow for the Cascades and Northern Rockies on Sunday...

On Saturday, a deep upper-level low over Texas will move northeastward off
the Northeast Coast by Monday. The circulation around the upper-level low
will aid in streaming moisture off the Western Gulf of Mexico, producing
showers and thunderstorms over the Southern Plains/Lower Mississippi
Valley with heavy rain. Therefore, the WPC has issued a Slight Risk of
excessive rainfall over parts of the Western/Central Gulf Coast through
Sunday morning. The associated heavy rain will create mainly localized
areas of flash flooding, with urban areas, roads, and small streams the
most vulnerable. On Sunday, the excessive rainfall threat ends over the
region.

However, the rain moves into the Ohio/Middle Mississippi Valleys and the
Central Appalachians by Sunday morning and continues northeastward to the
Great Lakes, Northeast, and Mid-Atlantic by Sunday afternoon/evening.
Overnight Sunday, the higher elevations of Northern New England will turn
over to snow. On Monday morning, light rain lingers over parts of the
Central Appalachians and the northern Mid-Atlantic. The snow will result
in reduced visibility and hazardous driving conditions. Furthermore, the
showers and thunderstorms will move into the Southeast overnight Saturday
and the Carolinas on Sunday. The showers and thunderstorms will end by
Sunday evening.

Meanwhile, upper-level energy over the Pacific Northwest into the Northern
Rockies will move southeastward to the Tennessee Valley by late Sunday
night. The energy will produce snow over the higher elevation of the
Pacific Northwest into the Northern Intermountain Region on Saturday,
expanding into the Northern Rockies by Saturday evening. Furthermore,
another front will move onshore overnight Saturday over the Pacific
Northwest, producing more rain and higher-elevation snow. The rain will
continue along the coast through Monday morning as snow continues over the
Cascades into the Northern Rockies and Northern High Plains. The snow will
result in reduced visibility and hazardous driving conditions.

Ziegenfelder

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