Area Forecast Discussion
Issued by NWS Hastings, NE

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662
FXUS63 KGID 160545
AFDGID

Area Forecast Discussion
National Weather Service Hastings NE
1145 PM CST Mon Jan 15 2018

.SHORT TERM...(This evening through Tuesday)
Issued at 321 PM CST Mon Jan 15 2018

Satellite and observations show a few lower clouds around the area
this afternoon. The northwest winds are fairly strong and are
gusting.

Main concern for this period will be the cold temperatures and winds
creating wind chill values of -20 to -30 degrees. Low temperatures
tonight will drop into the single digits to around 10 below zero
tonight. Winds will drop off a little as the sun goes down, but for
the most part winds will continue to be problematic through the
night. The only thing that could make the temperatures a bit warmer
is the clouds. There are still some clouds to the north that will
push into the area, mainly in the eastern part of the forecast area
during the night. This could keep temperatures from falling off
quite as far as under clear skies. Another thing is that with winds
staying up, temperatures do not fall off as quickly. Even with the
possibility of clouds and winds to keep temperatures from falling,
expect that wind chills will reach -30 for a few locations further
north and have went with a wind chill warning.

On Tuesday, the surface high will be moving through the area. That
will bring more of the clear skies and lighter winds, so expect
fairly cold temperatures during the day on Tuesday. As the winds
become lighter, the wind chills will recover and any advisories and
warnings will be allowed to expire. By late in the afternoon, there
could even be a little warm advection, but probably not enough to
warm things at the surface.

.LONG TERM...(Tuesday night through Monday)
Issued at 321 PM CST Mon Jan 15 2018

The warm advection that starts Tuesday afternoon is expected to
continue through much of the week. Temperatures will take an upwards
trend, warming several degrees each day through Friday. Friday will
be the warmest day of the week. A bonus with the warm temperatures
at the end of the week, winds will be fairly light.

A cold front moves through the area Friday night. The temperatures
on Saturday are back closer to normal again. An upper level wave
moves into the area Saturday night through Sunday night and brings a
chance for precipitation. At this time models are similar in
location and timing of the system, but have some differences in
details. The precipitation should be mostly snow. There could be a
brief period where it is rain as it starts and again Sunday
afternoon, depending on the temperatures. Another thing to watch is
that the surface low is fairly strong and there could be some breezy
conditions with the system. There is still quite a bit of time to
watch and see what the models do with this particular system.

&&

.AVIATION...(For the 06Z KGRI/KEAR TAFS through 06Z Tuesday)
Issued at 1136 PM CST Mon Jan 15 2018

Some MVFR stratus visible in satellite imagery is steadily
approaching the terminals this evening. Expect this stratus to
bring a few hours of MVFR CIGS to both terminals during the pre-
dawn hours...before skies clear with VFR conditions expected to
prevail at both terminals during the daytime hours tomorrow.
Otherwise...expect occasionally breezy northwesterly winds this
evening to gradually diminish overnight while becoming more
westerly...as the responsible surface high slips south into the
southern plains.

&&

.GID WATCHES/WARNINGS/ADVISORIES...
NE...Wind Chill Advisory until noon CST Tuesday for NEZ041-046>049-
     060>064-072>077-082>087.

     Wind Chill Warning until noon CST Tuesday for NEZ039-040.

KS...Wind Chill Advisory until noon CST Tuesday for KSZ005>007-
     017>019.

&&

$$

SHORT TERM...JCB
LONG TERM...JCB
AVIATION...Rossi



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