Prognostic Meteorological Discussion
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FXUS01 KWBC 270757

Short Range Forecast Discussion
NWS Weather Prediction Center College Park MD
356 AM EDT Sun May 27 2018

Valid 12Z Sun May 27 2018 - 12Z Tue May 29 2018

...Subtropical Storm Alberto will bring heavy rainfall across the
central and eastern Gulf as well as parts of the Southeast...

...Severe weather expected across the Plains through Tuesday...

...Well above average temperatures will continue across the Upper
Midwest and Great Lakes...

Subtropical Storm Alberto will continue a northward path over the
next few days through the eastern Gulf of Mexico. Alberto is
expected to strengthen into a tropical storm sometime Monday
morning and will make landfall Monday evening. In the meantime,
heavy rainfall will impact primarily Florida today along with
coastal Georgia and South Carolina. By Monday night and into
Tuesday morning, as Alberto makes landfall, heavy rain will impact
the Florida Panhandle and south Alabama. As the storm moves
inland, expect the heaviest axis of rainfall to also shift
northward into central Alabama. Flash flooding is a concern with
this storm. A moderate risk of flash flooding is possible for
parts of the central Gulf Coast especially late Monday night and
into Tuesday morning as Alberto nears the coast and makes
landfall. Isolated tornadoes are possible central and south
Florida--the Storm Prediction Center has highlighted this area in
a slight risk. For the most current information on Alberto and its
hazards, please see the National Hurricane Center

Showers and thunderstorms are expected to continue across the
Intermountain West and the Plains--particularly from Dakotas to
the Texas Panhandle today and Monday. A frontal boundary will
slowly move south and east across the Intermountain West and Great
Basin today--with showers and thunderstorms expected across these
regions. Convection will also fire off along the dryline in the
High Plains of Colorado southward into the Texas Panhandle. By
Monday and into Tuesday, as the front moves across the Plains and
stretches into the Upper Midwest, showers and thunderstorms will
develop along the boundary. These storms will have the capability
of becoming severe--and the Storm Prediction Center has a slight
risk across the Plains through Tuesday.

High temperatures across parts of the northern Plains, Upper
Mississippi and Upper Great Lakes will continue to see
temperatures over 20 degrees above normal for this time of year.
In the Upper Mississippi Valley, high temperatures today will be
in the upper 90s.  On Monday, these regions can expect low to mid
90s--with temperatures finally beginning to cool down slightly by
Tuesday.  West Texas and along the Rio Grande in southwest Texas
can expect high temperatures in the low to mid 100s.


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