Short Range Forecast Discussion
NWS Weather Prediction Center College Park MD
412 PM EDT Sat Jul 11 2020

Valid 00Z Sun Jul 12 2020 - 00Z Tue Jul 14 2020

...Post-T.C. Fay will continue to weaken as it moves across southern
Canada tonight...

...Strong to severe thunderstorms possible tonight from the
Central/Southern Plains
to the mid-Mississippi Valley...

...Record heat is expected to continue across the Desert Southwest into
Texas through Monday...

Post-T.C. Fay has weakened as it tracks across upstate New York today. The
threat of strong winds and heavy rainfall is diminishing as Fay loses
tropical characteristics and moves into Canada by this evening.  A low
pressure center in the wake of Fay will quickly approach from the Great
Lakes and will keep a good chance of showers and thunderstorms for much of
upstate New York and northern New England into Sunday morning. More
scattered thunderstorms can be expected to redevelop across the Northeast
as another cold front is forecast to dip down from Canada.

Another low pressure system forming over the central Plains will sustain
the threat of severe weather tonight from the Central Plains to the
mid-Mississippi Valley.  As the low tracks steadily to the east into the
Ohio Valley on Sunday, sunshine and cooler than normal temperatures will
spread into the northern Plains while scattered thunderstorms will move
into the East Coast on Monday along with summer heat and humidity. 
Meanwhile, the next low pressure system is forecast to develop yet again
over the northern High Plains on Monday, bringing an increasing threat of
thunderstorms across the Northern Plains and Upper Midwest.

Expansive upper level ridging will keep hot and above normal temperatures
in place across much of the South.  High temperatures from western Texas
to the Desert Southwest are forecast to challenge records for at least the
next two days (and likely beyond).  In fact, temperatures could reach 110
degrees at the hottest locations over the southern High Plains, while 120
degrees is within reach for parts of the Desert Southwest.  Above normal
temperatures are also likely across much of the interior West and parts of
the East Coast states. A large area of heat advisories and excessive heat
warnings are in effect across much of the Desert Southwest, Southern
Plains and into the Lower Mississippi Valley. The heat will not let up
after the sun sets as overnight temperatures will remain above average,
and may challenge records in the Southwest and Southern Plains through
Monday.

Kebede/Kong

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