Area Forecast Discussion
Issued by NWS Hastings, NE

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FXUS63 KGID 132158
AFDGID

Area Forecast Discussion
National Weather Service Hastings NE
358 PM CST Wed Dec 13 2017

.SHORT TERM...(This evening through Thursday)
Issued at 251 PM CST Wed Dec 13 2017

Gusty northwesterly winds will continue to diminish across the
region through the evening and overnight hours as the pressure
gradient continues to relax behind this mornings cold front. While
skies should start off the evening mostly clear...satellite
imagery is showing ample cloud cover to our northwest headed
towards the region. With the increasing cloud cover...expect
mostly cloudy skies to help keep overnight temperatures elevated
above their true potential...despite the cooler airmass that has
filtered in across the region...keeping most locations in the mid
to upper 20s overnight.

For the daytime hours Thursday...the focus will turn to the upper
level disturbance in northwesterly flow currently diving south
near the Canadian border. As the atmosphere begins to saturate
down to the lower levels ahead of this disturbance...expect lower
clouds to be on the increase and the chance for a few light snow
showers or flurries after 12Z. While precipitation should remain
mostly in the form of snow through the late morning
hours...temperatures should eventually warm to near or above
mid-December normals...with any precipitation likely changing
over the sprinkles or light rain showers by midday. While the
airmass above us will be very cold...moisture continues to be
lacking with this system...so do not expect much in the way of
either rainfall or snowfall accumulation tomorrow...with most
spots receiving only a few hundredths of an inch of liquid
precipitation...and most snowfall accumulations will be limited
to a dusting primarily across our far north.

.LONG TERM...(Thursday night through Wednesday)
Issued at 251 PM CST Wed Dec 13 2017

Continued fairly quiet weather is expected through the extended
periods with northwesterly flow to start the period...ushering in
another cold front and an upper level system from the Pacific
northwest late Saturday through Sunday. While the timing of this
system has shifted a bit more towards Sunday and the EC
solution...it continues to look like a fairly low impact event
with only another light dusting of snow or another few hundredths
of an inch of liquid precipitation. Otherwise...the cold front
will also briefly drop temperatures back closer to normal for
Sunday afternoon...with most locations topping out near 40. While
this will feel a bit cooler than the extremely nice start to the
weekend...it will still remain above normal as climatology tells
us we should be seeing highs only in the mid 30s this time of
year.

After Sundays cold front...expect a non eventful work week with
weak ridging aloft resulting in dry and well above normal
conditions through at least the latter half of next week.

&&

.AVIATION...(For the 18Z KGRI/KEAR TAFS through 18Z Thursday)
Issued at 1201 PM CST Wed Dec 13 2017

Strong gusty northwesterly winds will continue through the early
evening hours behind this mornings cold front. As the pressure
gradient begins to relax late in the day and winds begin to
decouple...expect overnight wind values to relax to around 10
KTS. At the same time...an upper level disturbance visible in
satellite across Montana...will begin spreading mid level clouds
across the local area. As the main disturbance reaches the
terminals during the morning hours Thursday...expect MVFR ceilings
to set in. While there is a small shot for a flurry or
sprinkle...expected impacts are not significant enough in order to
include a prevailing precip group for either terminal at this
time.

&&

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

$$

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


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