Short Range Forecast Discussion
NWS Weather Prediction Center College Park MD
400 AM EDT Sun Sep 25 2022

Valid 12Z Sun Sep 25 2022 - 12Z Tue Sep 27 2022

...A cold front will spread unsettled weather from the Great Lakes to the
East Coast together with a threat of severe thunderstorms tonight from the
northern Mid-Atlantic to southern New England...

...Below average temperatures to spread from the Great Lakes into the Ohio
Valley, while much above average temperatures persist across the West...

...Outer rainbands associated with Ian could begin affecting South Florida
on Monday, possibly becoming more frequent on Tuesday...

An upper-level trough is forecast to amplify over the eastern U.S. during
the next couple of days.  This trough will bring the recent spell of heat
across the central to southern Plains to an end behind a cold front. 
Meanwhile, unsettled weather associated with the upper trough over the
Great Lakes will spread east and southeast toward the East Coast.  Areas
from the northern Mid-Atlantic to southern new England are under a threat
of severe thunderstorms as a cold front passes through the region tonight.
 By Tuesday, cooler and drier air will spread into the East Coast behind
the front but rather raw and rainy conditions are expected to linger over
the Great Lakes where active lake effect rain showers are likely downwind
of all of the Great Lakes through the next couple of days. 

While temperatures cool down across the east over the next few days, they
will be heating up across much of the West in response to the amplifying
upper ridge.  Much above average temperatures expected across most of the
West into next week, with a few record highs possible by Monday across the
coastal Pacific Northwest. 

Meanwhile, attentions will be drawn toward the Caribbean Sea as Tropical
Storm Ian is forecast to rapidly intensify into a hurricane.  The Outer
rainbands associated with Ian could begin affecting South Florida on
Monday, possibly becoming more frequent on Tuesday.

Kong

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