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fxus64 kmeg 261829 
afdmeg

Area forecast discussion
National Weather Service Memphis Tennessee
129 PM CDT Wed Jul 26 2017

Discussion...
a transitional forecast period. Strong upper ridge that has brought
excessive heat to the region will retrogress into The Rockies
beginning late this week. The upper ridge will remain well west
next week resulting in an extended period of cooler weather.

Until the ridge moves sufficiently west another day of high heat
and humidity is expected. A heat advisory was extended for
roughly the western 2/3rds of the forecast area until 7 PM
Thursday.

A cold front that will put an end to the heat and humidity is
forecast to move through the region Thursday night and Friday. With
plenty of moisture in place heavy rainfall and wet microbursts are
possible. Isolated flash flooding is a threat along with those
gusty winds in any microburst that occur.

Polar Continental airmass driving into the region for the weekend
will bring welcomed relief after the sultry conditions of the
past few days. The upper flow will remain northwest for next week
with a risk of scattered diurnal precipitation.

Belles

&&

Aviation...
18z taf cycle

VFR conditions expected at taf sites this afternoon/evening. Some
convection developing near the Tennessee River so will include vcsh at kmkl
and ktup through afternoon. Expect some tempo MVFR br near daybreak
at kmkl again, and will include tempo br group at ktup as well in
the 11-13z period. Approaching upper system and cold front will
bring rain showers/thunderstorms and rain to taf sites, but impact should be after the end of
this taf cycle.

Gw

&&

Meg watches/warnings/advisories...
Arkansas...heat advisory until 7 PM CDT Thursday for Lawrence-Lee Arkansas-
Phillips-Randolph-St. Francis.

Excessive heat warning until 7 PM CDT this evening for Clay-
Craighead-Crittenden-cross-Greene-Mississippi-Poinsett.

Heat advisory from 7 PM this evening to 7 PM CDT Thursday for
Clay-Craighead-Crittenden-cross-Greene-Mississippi-Poinsett.

MO...excessive heat warning until 7 PM CDT this evening for Dunklin-
Pemiscot.

Heat advisory from 7 PM this evening to 7 PM CDT Thursday for
Dunklin-Pemiscot.

MS...heat advisory until 7 PM CDT Thursday for Coahoma-DeSoto-
Marshall-Panola-Quitman-Tallahatchie-Tate-Tunica.

Tennessee...heat advisory until 7 PM CDT Thursday for Crockett-Dyer-Fayette-
Gibson-Haywood-Lake-Madison-Obion-Weakley.

Excessive heat warning until 7 PM CDT this evening for
Lauderdale-Shelby-Tipton.

Heat advisory from 7 PM this evening to 7 PM CDT Thursday for
Lauderdale-Shelby-Tipton.

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