Short Range Forecast Discussion
NWS Weather Prediction Center College Park MD
342 PM EDT Tue Sep 13 2022

Valid 00Z Wed Sep 14 2022 - 00Z Fri Sep 16 2022

...Heavy to excessive rainfall possible across parts of the Great Basin
and Northern Rockies through Wednesday, and into the far northern U.S. on
Thursday...

...Daily rounds of showers and storms likely across Florida...

...Much above normal temperatures for the central U.S., with much below in
parts of the West and the East...


Moisture advection into the Southwest/Great Basin/Intermountain West will
interact with upper level short wave energy to produce widespread showers
and thunderstorms, heavy at times, across the region over the next couple
of days. The biggest concern remains into tonight across parts of southern
Nevada, northwest Arizona, and southwest Utah where WPC highlights a
moderate risk for excessive rainfall. The heavy/excessive rainfall threat
will lift slowly northward tomorrow into eastern Nevada, much of Utah, and
northwest Colorado. Showers and storms may also extend into parts of the
Four Corners region/New Mexico as well as up into the northern Rockies.
The upper level energy will continue into the northern Plains on Thursday
with heavy rainfall likely across northern parts of Minnesota in
conjunction with a warm front lifting into the region as well.

Elsewhere, a front moving through the Northeast this afternoon will
continue to produce showers and thunderstorms ahead of it into tonight,
mainly impacting far northern New England. A lingering stationary front
across Florida and the northern Gulf of Mexico will keep wet and unsettled
weather across the Sunshine state the next few days, with activity
possibly reaching parts of the central and western Gulf Coasts as well.
Out West, ongoing wildfires will continue to produce poor air quality
across the interior Northwest and northern Rockies, with widespread air
quality alerts currently in place. The greatest risk for new fires today
looks to be focused in eastern Wyoming where SPC highlights and elevated
fire weather risk and red flag warnings are in effect as well.

In terms of temperatures across the CONUS, much above average temperatures
will continue across the central Plains/Upper Midwest the next couple of
days, with daytime highs 10 to 20 degrees above normal underneath of
amplified upper level ridging. Upper level troughing over both the Eastern
and Western U.S. will keep temperatures near or below normal for these
regions.


Santorelli


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