Area Forecast Discussion
Issued by NWS Oklahoma City, OK

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FXUS64 KOUN 090527
AFDOUN

Area Forecast Discussion
National Weather Service Norman OK
1127 PM CST Fri Dec 8 2017

...Aviation Discussion...

&&

.AVIATION...
For the 06z TAFs:

VFR conditions will continue through the TAF period. Generally
northwesterly winds will prevail and be light, except for perhaps
some gusts to around 20 knots during the warmest part of the day.
Winds will subside during the evening and become more westerly.

&&

.PREV DISCUSSION... /issued 913 PM CST Fri Dec 8 2017/

..Update...

DISCUSSION...
Completed a minor update to adjust the hourly temperatures
slightly to account for a quick decrease this evening given light
winds and clear skies resulting in good radiative cooling
conditions. Northwesterly winds should gradually come up
overnight increasing turbulent mixing and preventing temperatures
from being as cold as last night. Coldest temperatures should
occur again across our southeast, including Ada and Atoka areas.
Mid-upper teens are possible in a few normally colder/low lying
locations later tonight across that portion of the forecast area.
The only other change was to increase cloud cover across the
north based on trends in IR satellite imagery. Some cirrus across
Kansas is moving southward.

BRB

PREV DISCUSSION... /issued 314 PM CST Fri Dec 8 2017/

DISCUSSION...
Northwest flow aloft will continue frequent fall fronts with
brief cool-downs followed by warm-ups into the upcoming week.
Elevated to near critical fire weather conditions is the primary
forecast issue.

For tonight, a cold front/wind shift will pass by the area. This
wind shift will delay a significant warm-up for one day. Even so,
slightly warmer weather is expected with temperatures near average
for Saturday afternoon.

Much warmer weather is expected for Sunday with westerly,
downslope low-level flow. Near critical fire weather conditions
will be possible Sunday afternoon with above-average temperatures
and very low relative humidity. The limiting factor for higher end
fire weather conditions will be winds speeds with a weak surface
pressure gradient.

Near critical fire weather conditions will be possible once again
Monday afternoon. Another cold front will pass by on Monday with
a brief cool-down for Tuesday before another warm-up on Wednesday.
Yet another cold front will slightly cool temperatures for
Thursday.

Precipitation chances will remain near zero for the foreseeable
future with persistent northwest flow aloft.

Mahale

&&

.PRELIMINARY POINT TEMPS/POPS...
Oklahoma City OK  48  27  50  30 /   0   0   0   0
Hobart OK         53  29  53  29 /   0   0   0   0
Wichita Falls TX  50  30  54  30 /   0   0   0   0
Gage OK           54  26  53  30 /   0   0   0   0
Ponca City OK     46  24  47  26 /   0   0   0   0
Durant OK         46  24  52  32 /   0   0   0   0

&&

.OUN WATCHES/WARNINGS/ADVISORIES...
OK...None.
TX...None.
&&

$$

12/17



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