Area Forecast Discussion
Issued by NWS Oklahoma City, OK

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FXUS64 KOUN 201056
AFDOUN

Area Forecast Discussion
National Weather Service Norman OK
556 AM CDT Fri Apr 20 2018

.DISCUSSION...
Please see the 12Z aviation discussion below.

&&

.AVIATION...
Flight conditions will slowly deteriorate late today through
tonight as an upper level low moves into the region. Wind speeds
will increase from the southeast late this morning. Rain chances
will initially increase near WWR late this afternoon, and then
spread east over the rest of the terminals tonight. For now, have
only included TSRA for PNC. MVFR cigs will develop overnight thru
Sat morning. Widespread rainfall will also be possible by this
time.

&&

.PREV DISCUSSION... /issued 359 AM CDT Fri Apr 20 2018/

DISCUSSION...
Still expect breezy SSE winds to develop this afternoon as the
closed upper low approaches from our west. This low should near
the OK panhandle just after 00Z tonight. Rain chances will first
increase ahead of it within mid level thetae ridge axis and zone
mid level ascent across far western and northwestern OK during the
early evening hours, and then spread eastward overnight into Sat
AM. Most of our FA will remain free of many lightning strikes
initially, but expect an increase by early Sat afternoon near
western north TX, progressing eastward with the sfc low throughout
the day. Some small hail will be possible there.

Some "wrap around", light rainfall will continue through Sun AM,
especially over northern OK and stratus will likely linger. This
will likely keep high temps closer to raw guidance Sun. Warmer
temps are expected Mon-Tue ahead of the next cold front. Rain
chances will accompany this front Tue night thru Wed, mainly from
I-40 southward. A few storms will be possible, but severe wx
chances appear very low for the time being.

&&

.PRELIMINARY POINT TEMPS/POPS...
Oklahoma City OK  67  47  52  46 /  10  80 100  40
Hobart OK         64  47  53  42 /  30  90  90  20
Wichita Falls TX  68  50  57  45 /  20  90  80  20
Gage OK           61  44  49  41 /  60  90  60  20
Ponca City OK     67  46  52  46 /   0  90  90  60
Durant OK         66  49  58  50 /   0  30 100  40

&&

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

$$

99/03/03


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