Short Range Forecast Discussion
NWS Weather Prediction Center College Park MD
359 AM EDT Fri Sep 30 2016

Valid 12Z Fri Sep 30 2016 - 12Z Sun Oct 02 2016

...Heavy rain threat continues through Saturday from the Ohio Valley to
the Mid-Atlantic and the Northeast...

...Scattered showers and thunderstorms will be possible over the Southwest
and Rockies...

Widespread showers and thunderstorms will continue over much of the
Mid-Atlantic, Northeast and the Ohio valley through the weekend. A large
upper-level low will spin over the Ohio Valley, which will keep a surface
front extending southward along the Eastern seaboard. As the weekend
progresses, a portions of the front will occluded over the central
Appalachian and into the lower Great Lakes/Ohio valley. This area will
likely have the higher rainfall amounts as deep Atlantic moisture wraps
northwestward into the system. The threat for flash flooding will persist
through Sunday morning

Showers and thunderstorms will be possible this weekend as well from the
desert southwest/southern Rockies northward to the northern Rockies and
High Plains. A slow moving cold front pushing through the Intermountain
West will be a focus for precipitations. Snow may develop over the favored
terrain of the Rockies. Rain also gets into the Pacific Northwest by
Saturday as the upper level system approaches the region. The coastal
areas of Washington and Oregon could observe rainfall totals of 1 to 2.50
inches by early next week.

Campbell

Graphics available at www.wpc.ncep.noaa.gov/basicwx/basicwx_wbg.php