Area Forecast Discussion
Issued by NWS Oklahoma City, OK

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FXUS64 KOUN 151743 AAB
AFDOUN

Area Forecast Discussion...UPDATED
National Weather Service Norman OK
1143 AM CST Mon Jan 15 2018

.AVIATION...
15/18Z TAFs. MVFR conditions will give way to VFR from north to
south this afternoon as drier air deepens. Clearing will progress
over region tonight from north to south. Strong north and
northeast winds will continue this afternoon and at least the
first half of evening before gradient begins to relax.
Precipitation north of KPNC is expected to stay north of that
terminal and development of wintry mix tonight expected to stay
south and east of KSPS.

&&

.PREV DISCUSSION... /issued 540 AM CST Mon Jan 15 2018/

DISCUSSION...

AVIATION...
MVFR ceilings will arrive from the north this morning behind a
cold front. Strong north winds will gust starting a few hours
after the front passes and lasts into tonight. VFR conditions are
expected to return tonight.

PREV DISCUSSION... /issued 535 AM CST Mon Jan 15 2018/

DISCUSSION...

AVIATION...
MVFR ceilings will arrive from the north this morning behind a
cold front. Strong north winds will gust staring a few hours after
the front passes and lasts into tonight. VFR conditions are
expected to return tonight.

PREV DISCUSSION... /issued 402 AM CST Mon Jan 15 2018/

DISCUSSION...
Very light snow with little accumulation is expected over north
central Oklahoma this morning when a short-wave trough embedded
in the long-wave trough passes over the eastern part of Oklahoma.
Later today there remains a chance for light freezing rain,
sleet, or snow to change to snow this evening in southeastern
Oklahoma as the wave exits that region. It still appears that the
bulk of the precipitation will be to the south and east of this
area. The cold front that will pass coincidentally will bring in
much colder air today. With north winds tonight, wind chill values
in the northern half of Oklahoma will arrive to -5 degrees F. or
less, and an advisory for that hazard is in effect after midnight.
The cold air mass will settle across Oklahoma Tuesday and Tuesday
night with that being the coldest day of the week. Maximum
temperatures in north central OK will be aroudn 20 degrees while
southwest Oklahoma will be just below freezing. Wednesday morning
will be similarly cold to Tuesday, but without much wind. A
strong warming trend starts Wednesday as the long-wave trough from
the southern plains to Hudson Bay is replaced by weaker,
downslope flow from the northwest or west for the second half of
the week. By Saturday a trough from the southwest will have
completely changed the overall pattern and temperatures are
expected to be 15 to 20 degrees above normal. Later Saturday or
Sunday there may be sufficient moisture for a chance of rain in
the eastern half of Oklahoma.

&&

.PRELIMINARY POINT TEMPS/POPS...
Oklahoma City OK  34  12  22   9 /  10   0   0   0
Hobart OK         37  13  27   9 /  10  10   0   0
Wichita Falls TX  44  20  30  12 /  10  10  10   0
Gage OK           30   6  25   9 /  10   0   0   0
Ponca City OK     32   5  18   4 / 100   0   0   0
Durant OK         44  19  26  12 /  20  30  10   0

&&

.OUN WATCHES/WARNINGS/ADVISORIES...
OK...Wind Chill Advisory from midnight tonight to 10 AM CST Tuesday
     for OKZ004>020-024>026.

     Wind Advisory until 4 PM CST this afternoon for OKZ021>023-
     033>038.

TX...Wind Advisory until 4 PM CST this afternoon for TXZ083>085.

&&

$$

11/26



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