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fxus64 ktsa 210548 
afdtsa

Area forecast discussion
National Weather Service Tulsa OK
1148 PM CST Mon Feb 20 2017

Aviation...
concerning taf sites ktul/krvs/kbvo/kmlc/kxna/kfyv/kfsm/krog.
There will be a potential for dense fog at the OK taf sites
overnight and low clouds at the Arkansas taf sites. Clearing line now
runs from near kbvo/ktul/kmlc and these sites are likely to bounce
around with varying visibility. The worst conditions will likely
occur at kbvo/krvs/kmlc which have already lowered below 1 mile at
times. Drier air is trying to work in from the northwest but it
will take awhile. Meanwhile...clouds will affect the Arkansas taf sites
through the overnight. The prevailing cloud height is around
5000-7000 feet, but developing stratocumulus below that layer will
result in occasional MVFR ceilings at the terminals. Improvement
will occur by mid morning with clouds gradually clearing from west
to east.

&&

Previous discussion... /issued 932 PM CST Mon Feb 20 2017/

...

Discussion...
light rain continues to slowly push eastward out of northwest
Arkansas with the trailing cloud shield also making slow eastward
progress. Rain will continue to taper off across western Arkansas
overnight while areas of fog will thicken especially along the
western periphery of the cloud deck. The magnitude and duration of
the fog is uncertain however portions of southeast OK are already
trending toward lower visibilities thus an advisory was posted and
later shifts can adjust as needed. Updated forecast raised min
temps a few degrees where clouds are expected to linger and
adjusted for observed precip trends.

&&

Preliminary point temps/pops...
tul 49 74 43 80 / 0 0 0 0
fsm 55 71 47 80 / 20 10 10 0
mlc 50 73 42 81 / 10 0 0 0
bvo 45 75 34 80 / 0 0 0 0
fyv 51 69 40 78 / 30 10 10 0
byv 53 69 46 77 / 70 10 10 0
mko 51 73 42 80 / 10 0 0 0
Mio 50 73 42 79 / 10 0 0 0
f10 48 73 42 79 / 0 0 0 0
hhw 53 74 47 79 / 10 0 0 0

&&

Tsa watches/warnings/advisories...
OK...dense fog advisory until 9 am CST Tuesday for okz049-053-073.

Arkansas...none.
&&

$$

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