Area Forecast Discussion
Issued by NWS Tulsa, OK

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FXUS64 KTSA 210549
AFDTSA

Area Forecast Discussion
National Weather Service Tulsa OK
1149 PM CST Tue Feb 20 2018

.AVIATION...
CONCERNING TAF SITES KTUL/KRVS/KBVO/KMLC/KXNA/KFYV/KFSM/KROG.
Conditions will improve to VFR at the northeast Oklahoma sites
overnight through Wednesday morning, while MVFR to IFR conditions
will prevail elsewhere. Rain and freezing rain will be ending over
the next few hours at the southeast Oklahoma and northwest
Arkansas sites. MVFR and eventually IFR conditions will return
Wednesday afternoon and evening as rain, freezing rain, and sleet
once again overspreads the area.

&&

.PREV DISCUSSION... /Issued 950 PM CST Tue Feb 20 2018/

..UPDATE...

DISCUSSION...
The surface freezing line now extends from Jay to Eufaula, just
north of McAlester. Precipitation has come to an end across far
northeast Oklahoma, and we have allowed the winter weather
advisory expire at 9pm as scheduled for those counties in NE
Oklahoma. The advisory remains in effect for northwest Arkansas
overnight. Temperatures in Benton and Washington counties in NW
Arkansas are in the mid 30s and will drop below freezing by or
just after midnight, per hourly trends. It`s still raining as far
south as McAlester, but this will change over for some light
freezing rain before rain moves east and south.

Observed soundings from OUN/SGF show pretty classic freezing rain
soundings, and the lowest levels at least off the SGF sounding
don`t support sleet, so the main precip type should stay freezing
rain overnight.

There is potential for more freezing rain, possibly with some
sleet, for Wednesday into Wednesday night. This may require more
winter weather headlines. Flooding remains a concern as well, with
many areas in southeast Oklahoma picking up 2-3" of rain today
with locally higher amounts.

Updated products already sent.

&&

.TSA WATCHES/WARNINGS/ADVISORIES...
OK...Flood Watch until 6 AM CST Wednesday for OKZ049-053-068>076.

     Winter Weather Advisory until 6 AM CST Wednesday for OKZ068>071-
     073.

AR...Flood Watch until 6 AM CST Wednesday for ARZ001-002-010-011-019-
     020-029.

     Winter Weather Advisory until 6 AM CST Wednesday for ARZ001-002-
     010-011.

&&

$$

AVIATION.....05


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