Short Range Forecast Discussion
NWS Weather Prediction Center College Park MD
326 AM EDT Wed Oct 28 2026

Valid 12Z Wed Oct 28 2026 - 12Z Fri Oct 30 2026

...There is a Slight Risk (level 2/5) of severe thunderstorms over parts
of the Upper Mississippi Valley on Wednesday...

�Snow will develop over parts of the higher elevations of the Cascades,
Northern Intermountain Region/Northern Rockies on Wednesday�

...There is a Slight Risk of excessive rainfall over parts of the Southern
High Plains on Thursday and over parts of the Southwest on Friday...

Onshore flow and upper-level troughing will produce light rain over parts
of the Pacific Northwest with higher-elevation snow and lower-elevation
rain over the Cascades, the Northern Intermountain Region, and the
Northern Rockies through Thursday morning. On Friday morning, a front will
move onshore over the Northwest, bringing rain and high-elevation snow
over parts of the Pacific Northwest and the Northern Intermountain Region.
Meanwhile, a front moving westward across Florida, along with onshore
flow, will produce showers and thunderstorms over parts of Florida through
Friday.

Moreover, flow off the Gulf will aid in producing showers and
thunderstorms over the Western Gulf Coast through Wednesday afternoon. In
addition, upper-level energy will move over the region, creating heavy
rain over the Southern High Plains overnight Wednesday into Friday.
Therefore, the WPC has issued a Slight Risk (level 2/4) of excessive
rainfall over the Southern High Plains with these thunderstorms on
Thursday through Friday morning. The associated heavy rain will create
mainly localized areas of flash flooding, with urban areas, roads, small
streams, narrow canyons/gullies, and burn scars the most vulnerable.

Meanwhile, a front over the Upper Midwest will produce showers and
thunderstorms over parts of the Northern Plains and Upper Mississippi
Valley on Wednesday afternoon and move eastward into the Upper Great Lakes
by Wednesday evening.  The showers and thunderstorms move into the Middle
Mississippi Valley and Central Plains by Thursday morning. More rain will
develop along the front over parts of the Great Lakes into the Middle
Mississippi Valley on Thursday morning and over the Lower Great Lakes by
Thursday evening and into parts of the Northeast by Friday morning.

Furthermore, a surge of moisture off the Gulf of California will produce
showers and thunderstorms with heavy rain over the Southwest on Friday.
Therefore, the WPC has issued a Slight Risk (level 2/4) of excessive
rainfall over the Southwest with these thunderstorms. The associated heavy
rain will create mainly localized areas of flash flooding, with urban
areas, roads, small streams, narrow canyons/gullies, and burn scars the
most vulnerable. Additionally, some showers and thunderstorms will also
develop over parts of southeastern California on Friday.


Ziegenfelder


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

--- MBSE BBS v1.1.7.2 (Linux-x86_64)
 * Origin: Outpost BBS * Johnson City, TN (618:618/1)