Area Forecast Discussion
Issued by NWS Hastings, NE

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FXUS63 KGID 061751
AFDGID

Area Forecast Discussion
National Weather Service Hastings NE
1151 AM CST Wed Dec 6 2017

.UPDATE...
Issued at 1146 AM CST Wed Dec 6 2017

Updated the forecast to increase wind speeds/gusts and sky cover
associated with the passage of the backdoor cold front pushing
through today. Tried to fine tune the sprinkles and flurries in
association with the timing of the front passage, and actually put
a small POP in our north for potential of a bit heavier precip.
Also adjusted dewpoints a bit as the front moves through. Adjusted
temperatures to warm up a bit more in our south before the front
moves through.

&&

.SHORT TERM...(Today and tonight)
Issued at 352 AM CST Wed Dec 6 2017

An upper level disturbance in northwesterly flow will track across
the region today. While dry air will remain in place in the lower
levels of the atmosphere...model soundings indicate the atmosphere
will become saturated around 700 mb...which combined with adequate
forcing from the aforementioned disturbance...will likely result
in a few light snow showers or flurries across portions of the
local area. That said...given the overall dry airmass...little to
no snowfall accumulation can be expected.

In addition...with ample cloud cover and a cool airmass in
place...expect a fairly chilly afternoon across the local
area...with high temperatures likely struggling to climb out of
the 30s. These cool temperatures...combined with deep mixing to
near 700 mb...will result in an overall blustery afternoon across
the local area as stronger winds from aloft mix down to the
surface.

Clearing skies and lighter winds will return this evening...
resulting in a cold night across the region as an area of surface
high pressure encroaches from the northwest. As a
result...adjusted most overnight low temperatures down a few
degrees...with the coldest spots likely dropping into the single
digits by early Thursday morning.

.LONG TERM...(Thursday through Tuesday)
Issued at 352 AM CST Wed Dec 6 2017

Even though there is an upper level wave moving through yet Thursday
and Thursday night, the low level moisture decreases and skies will
be mostly clear. Behind the wave, there will be another push of cold
air and Thursday will be cooler. A surface high moves to the
southeast Thursday night and there is some warm advection by Friday.
The temperatures will warm back up again. The mild temperatures
continue Saturday and warm a little more for Sunday.

A cold front will move through the area Sunday night. From Monday
through Tuesday, there will be an upper level wave moving through
with an increase in low level moisture. There could be some on and
off precipitation as the wave moves through. Since the temperatures
at night will be in the 20s and highs in the 40s, the precipitation
will be rain or snow depending on the time of day.

&&

.AVIATION...(For the 18Z KGRI/KEAR TAFS through 18Z Thursday)
Issued at 1146 AM CST Wed Dec 6 2017

Main concern will be wind gusts this afternoon as a backdoor
cold front moves through. Maybe some flurries this
afternoon/evening. Could flirt a bit with MVFR ceilings,
especially toward EAR, but not a sure thing as we seem to be on
the cusp for this.

&&

.GID WATCHES/WARNINGS/ADVISORIES...
NE...None.
KS...None.
&&

$$

UPDATE...Heinlein
SHORT TERM...Rossi
LONG TERM...JCB
AVIATION...Heinlein



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