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Area forecast discussion 
National Weather Service Tulsa OK
1147 PM CST Friday Dec 19 2014

Aviation...
concerning taf sites ktul/krvs/kbvo/kmlc/kxna/kfyv/kfsm/krog.
LIFR to MVFR ceilings are expected to remain over northwest
Arkansas and also much of southeast Oklahoma overnight as a wave
exits the region. Patchy areas of fog over these locations could
allow visibilities to fall into the LIFR to IFR categories early
Saturday morning. Across northeast Oklahoma...MVFR to VFR
conditions should continue overnight behind the exiting wave.
During the day Saturday...conditions look to lift to MVFR across
the region and possibly become scattered/broken Saturday afternoon/evening.



&&

Previous discussion... /issued 754 PM CST Friday Dec 19 2014/

Discussion...

Areas of drizzle have shown up on radar this evening...most likely
due to some weak lift from a pv maximum passing overhead at this time. Recent
trends suggest that the drizzle is tapering off...however some
patchy drizzle will likely remain for a few more hours.
Also...patchy fog is observed...especially down at McAlester where
visibilities have been below 1 statute mile since the late afternoon.
Will maintain patchy fog and drizzle in the grids over much of the
area.

There is optimism that the sun will actually show tomorrow. The
western edge of the stratus deck is slowly moving in our
direction...as westerly flow increases on the back side of the
shortwave trough. This could be a sign that there will be enough
downslope flow to erode the stratus layer on Saturday. We shall
see. To date...Tulsa has only seen 14% of the total possible
sunshine minutes to this point in the month of December. That's a
lot of Grey days so far.

Lacy



&&

Preliminary point temps/pops...
tul 37 48 38 51 / 0 0 0 10
fsm 40 52 38 52 / 10 0 0 10
mlc 40 50 38 52 / 10 0 10 10
bvo 34 47 35 51 / 0 0 0 10
fyv 37 47 33 48 / 10 0 0 10
byv 37 46 32 48 / 10 0 0 10
mko 37 49 38 51 / 10 0 0 10
Mio 36 47 36 50 / 10 0 0 10
f10 38 48 38 51 / 0 0 10 10
hhw 42 51 38 52 / 10 10 10 10

&&

Tsa watches/warnings/advisories...
OK...none.
Arkansas...none.
&&

$$

Aviation...20

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