Short Range Forecast Discussion
NWS Weather Prediction Center College Park MD
330 AM EDT Sat Oct 02 2021

Valid 12Z Sat Oct 02 2021 - 12Z Mon Oct 04 2021

...There is a Slight Risk of excessive rainfall over parts of the
Lower/Middle Mississippi and the Tennessee Valleys through Sunday
morning...

...Air Quality Alerts over the San Joaquin Valley through Monday...

A quasi-stationary front will extend from the Upper Midwest to the
Southern Plains, making noticeable eastward movement on Sunday evening. 
Moisture from the Western Gulf of Mexico will stream northward over the
Plains and Mississippi Valley into the Great Lakes.  Showers and
thunderstorms will develop along and near the boundary, with some storms
producing heavy rain over the Mississippi Valley.  Therefore, WPC has
issued a Slight Risk of excessive rainfall over parts of the Lower/Middle
Mississippi and the Tennessee Valleys. The associated heavy rain will
create mainly localized areas of flash flooding, with urban areas, roads,
and small streams the most vulnerable through Sunday morning.  The threat
of excessive rainfall will lessen slightly to a Marginal Risk over parts
of the Tennessee Valley on Sunday into Monday morning.

Rain will move into the Northeast late Saturday afternoon, continuing into
Monday. As the front moves eastward, the showers and thunderstorms will
also extend from Great Lakes to the Central Gulf Coast by Sunday
afternoon.  On Monday, the showers and thunderstorms will slowly expand
into parts of the Mid-Atlantic/Southeast. 

Meanwhile, smoke from wildfires will get trapped in the San Joaquin Valley
of California.  Therefore, Air Quality Alerts are up over parts of the San
Joaquin Valley through Monday.

Ziegenfelder


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