Area Forecast Discussion
Issued by NWS Tulsa, OK

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000
FXUS64 KTSA 221737
AFDTSA

Area Forecast Discussion
National Weather Service Tulsa OK
1137 AM CST Wed Jan 22 2020

.AVIATION...
CONCERNING TAF SITES KTUL/KRVS/KBVO/KMLC/KXNA/KFYV/KFSM/KROG.
MVFR/IFR cigs and MVFR/IFR vsbys in light rain will prevail
through most of the period at all sites. VFR cigs in the early
part of the period at the NW AR sites will lower to the
aforementioned categories towards 00z. Some improvement to VFR
vsbys and MVFR cigs possible after 15z across the NE OK sites.

&&

.PREV DISCUSSION... /Issued 1029 AM CST Wed Jan 22 2020/

DISCUSSION...

A large area of precipitation continues across portions of eastern
Oklahoma and northwestern Arkansas at this time. Most areas in
OK, except for extreme SE OK and east-central OK are above
freezing at this time. Most of northwestern Arkansas is right at
freezing if not just above as well. The main concern, especially
in NW AR, is terrain influencing the precipitation type. Ridgetop
reports from NW AR are still reporting temps in the upper 20s with
a wintry mix of sleet/snow still falling. The higher elevation of
NW AR will likely aid in keeping wintry precipitation around much
longer than areas lower in elevation. Freezing rain is still
locked into the Arkansas river valley in the Fort Smith area.
Freezing rain should continue for the next couple of hours until
temperatures can finally reach above freezing.

As a result of temperatures warming into the mid 30s across the
western portion of the CWA, opted to trim a few counties out of the
Winter Weather Advisory. More counties will likely be trimmed as
we progress through the late morning and afternoon hours and as
temperatures warm (at the surface and aloft), changing over the
wintry mix to all rain.

Another upper level disturbance will move into the area later
today bringing another chance for precipitation this evening and
overnight. The higher elevations will likely hold onto wintry
precipitation through the evening and overnight hours as this
disturbance passes before temperatures can rise above freezing
late tonight.

Snider

&&

.TSA WATCHES/WARNINGS/ADVISORIES...
OK...Winter Weather Advisory until midnight CST tonight for OKZ057-
     058-062-063-068-069-072-076.

     Winter Weather Advisory until 3 PM CST this afternoon for OKZ049-
     053-056-061-067-070-074-075.

AR...Winter Weather Advisory until midnight CST tonight for ARZ001-
     002-010-011-019-020-029.

&&

$$


AVIATION.....23


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