Short Range Forecast Discussion
NWS Weather Prediction Center College Park MD
400 AM EDT Sat Sep 24 2022

Valid 12Z Sat Sep 24 2022 - 12Z Mon Sep 26 2022

...First taste of autumnal weather in the eastern U.S. this weekend will
be followed by unsettled weather on Monday...

...Blustery northwest winds from the outer edge of Fiona brush up against
eastern Maine today...

...Heat is expected over southern Plains for the next couple of days...

The weekend will begin with a fresh surge of cool Canadian air providing
the first taste of fall weather along the East Coast while an
exceptionally intense storm impacts the Canadian Maritimes.  This storm,
which originated from the powerful category-4 Hurricane Fiona, is forecast
to bring blustery winds across Maine today.  In contrast, frost is
expected across portions of the interior Northeast this morning under
nearly calm winds as a cool high pressure system arrives.  Farther
upstream, showers and a few thunderstorms ahead of a weak low pressure
system are expected to spread eastward across the Great Lakes through
Sunday.  This system is forecast to gradually develop and expand as it
moves through the Great Lakes region.  The pleasant fall weather along the
East Coast today will give way to a gradual expansion of unsettled weather
later this weekend and into Monday especially over the Northeast.

Meanwhile, an amplifying ridge in the West will allow for sunny/clear
skies and above normal temperatures for the region this weekend.  The
southern Plains will experience a couple more days of heat under the
eastern edge of the ridge as high temperature reaching into the upper 90's
could challenge some daily records.  Over southern portions of Florida, a
stalled out front will provide the focus for scattered to isolated showers
and thunderstorms. By Monday, attention will be drawn to the Caribbean Sea
as Tropical storm Ian approaches.

High wind warnings and wind advisories are in effect for Maine due to
Hurricane Fiona's arrival over Nova Scotia tonight. High winds are
expected to continue through Saturday before weakening Sunday night when
Fiona is forecast to lift farther into Atlantic Canada. Portions of the
Southern Plains and Lower Mississippi Valley will continue experiencing a
warm-up as ridging in the South retracts and builds into the West over the
next couple of days. High temperatures in the mid to upper 90s may tie or
break existing records for portions of the ArkLaTex region on Saturday.
Lows in the 70s tonight will be 15-20 degrees above average for parts of
the Southern Plains.

Kong/Kebede



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