Area Forecast Discussion
Issued by NWS Tulsa, OK

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000
FXUS64 KTSA 211111
AFDTSA

Area Forecast Discussion
National Weather Service Tulsa OK
611 AM CDT THU JUL 21 2016

...UPDATE...

.AVIATION...
CONCERNING TAF SITES KTUL/KRVS/KBVO/KMLC/KXNA/KFYV/KFSM/KROG.

VFR conditions are expected through the period, with winds under
10kts.

&&

.PREV DISCUSSION... /Issued 243 AM CDT THU JUL 21 2016/

DISCUSSION...
Excessive heat will continue to be the main weather concern
in the short term. Strong/expansive upper high, currently centered
over the central U.S., will continue to slowly shift westward over
the next couple of days. Heat indices will again be in the 105 to
109 degree range across most of eastern Oklahoma and west-central
Arkansas.

High temperatures are expected to be a degree or two warmer on
Friday, however drier southwest winds could keep heat indices
around the same or slightly lower across portions of eastern
Oklahoma. Further east, across northwest Arkansas, heat indices will
approach 105 degrees on Friday and therefore a heat advisory will
be issued for aforementioned area, including portions of northeast
Oklahoma.

Upper high will begin to weaken somewhat over the weekend with
precipitation chances returning to the region by Sunday. The best
chance for showers/thunderstorms will be Monday and Tuesday as a
weak frontal/outflow boundary moves into the region.

&&

.TSA Watches/Warnings/Advisories...
OK...Heat Advisory from noon to 9 PM CDT Friday for OKZ054>058-
     060>063-067>070-072-074>076.

     Heat Advisory from noon today to 9 PM CDT this evening for
     OKZ049-053>068-070>076.

AR...Heat Advisory from noon to 9 PM CDT Friday for ARZ001-002-010-
     011-019-020-029.

     Heat Advisory from noon today to 9 PM CDT this evening for
     ARZ019-020-029.

&&

$$

AVIATION...22


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