Weather Prediction Center - Short Range Forecast Discussion
WPC QPF Graphical Outlook
Short Range Forecast Discussion
FXUS01 KWBC 101838
PMDSPD
Short Range Forecast Discussion
NWS Weather Prediction Center College Park MD
237 PM EDT Sat Oct 10 2026
Valid 00Z Sun Oct 11 2026 - 00Z Tue Oct 13 2026
...Post Tropical Isaias will bring widespread rainfall across the
Eastern states...
...Moisture from Tropical Storm Rachel will bring heavy rain and
flash flooding to the southwestern U.S. through Monday...
...First winter storm of the season forecast for the Northern
Rockies this weekend...
An active weather pattern will be in place across the Continental
U.S. through the remainder of the weekend and into Monday. What is
now Post Tropical Isaias is currently tracking north across
Alabama, and is bringing widespread rainfall from the Mississippi
River eastward to the central Appalachians and the southeast
coast, with drier conditions returning to the central Gulf Coast
region after torrential rain and high winds. The heaviest rainfall
over the next two days is expected to be across the southern and
central Appalachians, particularly on southeast facing terrain
where orographic ascent will be enhanced with the potential for
2-4 inch rainfall totals with isolated higher amounts possible
that may result in some flooding, along with high winds across the
higher ridges. A secondary maxima of heavy rain is also expected
near coastal North Carolina.
Heavy rainfall and flash flooding will also make weather headlines
across the western U.S. as the future remnants of what is now
Tropical Storm Rachel move inland across the Desert Southwest. A
Moderate Risk of excessive rainfall is valid from southern
California to southern Utah where an enhanced corridor of heavier
rainfall is expected to develop. The potential exists for rainfall
totals to exceed three inches across the higher terrain of the
Peninsular Ranges and into southeastern Nevada and the southern
Wasatch Range, and generally 1-2 inches for the lower elevations.
This could easily result in some instances of flash flooding.
Farther to the north across Montana, it will be much colder north
of the frontal boundary, and the incoming moisture should mainly
be in the form of snow across the higher terrain of central and
western Montana, with some areas possibly getting over a foot of
snowfall through Monday afternoon. Snow levels will be much higher
across Idaho and Wyoming, limiting snowfall to the highest terrain.
A temperature dichotomy will exist across the country through
Sunday and into Monday. Conditions will remain well above average
over much of the central U.S. with widespread highs into the 80s
and even lower 90s for the northern/central Plains into the Upper
Midwest and 90s for the southern Plains. There will likely be some
new daily record highs established as a result. The cold front in
the West will bring much colder temperatures in the 40s to
portions of the northern High Plains Sunday. For the East, highs
will vary around average with relatively cooler temperatures in
vicinity of the widespread clouds and rain associated with the
remnants of Isaias. Forecast highs are generally in the 70s for
the Southeast with 60s for the Northeast.
Hamrick
Graphics available at
https://www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php
$$
Preferred Height Pattern | 500 mb Height Trends
Weather Prediction Center
Storm Prediction Center
CPC Outlooks and GA Climate
