Area Forecast Discussion
Issued by NWS Omaha/Valley, NE

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676
FXUS63 KOAX 200832
AFDOAX

Area Forecast Discussion
National Weather Service Omaha/Valley NE
332 AM CDT Thu Apr 20 2017

.SHORT TERM...(Today through Saturday)
Issued at 330 AM CDT Thu Apr 20 2017

88D mosaic this morning showing thunderstorm activity still on going
along a cold front in eastern KS. Meanwhile, a narrow line of post-
frontal convection extended from the southern CWA into northwest KS
which the latest RAP/HRRR indicate should be at a close within
the next couple hours.

Models in agreement large scale flow will be rather progressive
over the next several days with the next round of precip possible
over the southern CWA Friday afternoon/night. This in part to a
shortwave trof off currently off the Pacific NW coastline pushing
deep into the central Plains this weekend. Given track of the
shortwave energy...best lift to phase with environmental moisture
will be found across KS and OK. At any rate...small pops seems
reasonable for areas south of the I-80 corridor where some
isentropic upglide will be influential.

Otherwise...cool through the weekend with highs generally in the mid
60s and lows in the low 40s.

.LONG TERM...(Saturday night through Wednesday)
Issued at 330 AM CDT Thu Apr 20 2017

Not too much weather to contend with in the extended periods.
Chances look small for precip Monday afternoon...Tuesday night
through Wednesday given track of upper level system will be across
the Dakotas. Otherwise...near zonal flow will inhibit any
significant temperature swings with highs generally in the upper
60s and lows in the mid 40s.

&&

.AVIATION...(For the 06Z TAFS through 06Z Thursday night)
Issued at 1133 PM CDT Wed Apr 19 2017

Although the surface front has pushed through and we have
northwest winds at 10 to 15kts...the mid/upper level part of the
storm system is still moving through with a little light rain
possible at KLNK before 12z. MVFR CIGS should persist through
12Z...with some patchy IFR conditions. KLNK could see some breaks
in the MVFR conditions and will trend with improving to VFR by 12Z
there and 14-18Z at KOFK and KOMA. Northwest flow aloft should
increase and daytime mixing should boost winds 10 to 25kts during
the day along with adding more gustiness.


&&

.OAX WATCHES/WARNINGS/ADVISORIES...
NE...None.
IA...None.
&&

$$

SHORT TERM...DEE
LONG TERM...DEE
AVIATION...Zapotocny



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