Area Forecast Discussion
Issued by NWS Omaha/Valley, NE

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867
FXUS63 KOAX 171718
AFDOAX

Area Forecast Discussion
National Weather Service Omaha/Valley NE
1118 AM CST Tue Jan 17 2017

.SHORT TERM...(today through Thursday)
Issued at 300 AM CST Tue Jan 17 2017

Precipitation had ended across the area prior to midnight with
departing weather system located over northern Illinois at 08z.
Low clouds had cleared across much of northeast Nebraska early
this morning with trend of decreasing clouds expected to spread
east during the morning as an amplifying short wave trough moves
across eastern Nebraska and western iowa.

Weak warm advection moves into the area during the afternoon with
northwest winds diminishing during the morning and becoming light west
to southwest in the afternoon. Combination of morning clouds and
light winds will limit warming initially today but afternoon sun
is expected across most of the area and will help boost highs into
the mid 30s to near 40. Warming trend for the region then kicks in
for Wednesday and Thursday with highs in the 40s to around 50
expected. One drawback will be increasing clouds by Wednesday
night into Thursday as another short wave trough lifts out of the
southern Rockies into the central plains.

.LONG TERM...(Thursday night through Monday)
Issued at 300 AM CST Tue Jan 17 2017

The central plains trough then amplifies over the lower Missouri
Valley Thursday night and lifts toward the lower Great Lakes on
Friday. This system will bring a small chance of some light rain
or snow to the area Thursday night. Additional waves then
periodically move through the region for the weekend and early
next week as the strong westerly flow pattern remains in place.
Some chance of rain or snow is expected through the remainder of
the extended period with the better chance likely over the
weekend. The warmer temperatures expected however should result in
mainly rain for most of the area with some rain or snow mix
possible where borderline temperatures around freezing exist.

&&

.AVIATION...(For the 18Z TAFS through 18Z Wednesday afternoon)
Issued at 1116 AM CST Tue Jan 17 2017

An MVFR cloud deck at KOMA should scatter out by 19-20z.
Otherwise VFR conditions until later in the night when some patchy
fog could develop by 02-07z. Not confident enough to drop any
location into to MVFR, but will go down to 6sm and see how this
eventually develops.

&&

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

$$

SHORT TERM...Fobert
LONG TERM...Fobert
AVIATION...DeWald



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