Area Forecast Discussion
Issued by NWS North Platte, NE

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FXUS63 KLBF 272009
AFDLBF

Area Forecast Discussion
National Weather Service North Platte NE
209 PM CST Mon Feb 27 2017

.SHORT TERM...(This evening through Tuesday)
Issued at 209 PM CST Mon Feb 27 2017

A slight chance for -sn remains in the forecast this evening for
Sheridan county ahead of an upper trough moving across Wyoming. A
cold front will also move into northwest Nebraska this evening,
and push through the remainder of the forecast area overnight.
Higher dewpoints will be drawn northward this evening across
eastern areas, and with existing snow cover, areas of fog are
expected to develop late evening and overnight. The advancement of
the cold front from the west will end the fog from west to east
overnight, with no fog expected after 12z Tuesday.

Cooler H85 temperatures behind the front from 0C to -5C will
reduce highs Tuesday to the lower to mid 30s northwest, to near 40
across the southeast. Considerable cloudiness also through the
day. In the afternoon, a slight chance for light rain introduced
across the far southeastern zones, in area of weak mid level
frontogenesis.

.LONG TERM...(Tuesday night through Monday)
Issued at 209 PM CST Mon Feb 27 2017

Northwest winds increase to 20-30 mph by late morning through the
afternoon Wednesday. Deep mixing will allow highs to reach the mid
and upper 30s north central to lower 40s south, despite cooler H85
temps of -2C to -6C.

Northwest flow aloft will continue through Thursday, followed by
zonal flow Friday, and weak upper ridging for this weekend. This
will signal a warming trend with upper 40s to upper 50s Friday,
and mid to upper 60s Saturday and Sunday southwest and mid to
upper 50s north. Existing snow should melt substantially by the
end of this weekend. There is a slight chance for mainly light
rain in the north central Sunday and Sunday night, as an upper
trough enters the Northern Plains. Models differ on support for
any precipitation, with the 12z GFS dry, and the ECMWF bringing a
chance in Sunday night across the north. The Canadian model is the
deepest with the northern stream trough, and supports the best
chances across the north central Sunday and Sunday night.

&&

.AVIATION...(For the 18Z TAFS through 18Z Tuesday afternoon)
Issued at 136 PM CST Mon Feb 27 2017

VFR conditions should persist overnight at the KLBF and KVTN
terminals. There will be areas of fog developing late this evening
and overnight at the KBBW and KONL terminals, which should lift by
15z Tuesday. Lowering ceilings at KLBF Tuesday morning could fall
into MVFR by around 15z, toward the end of the TAF period.


&&

.LBF WATCHES/WARNINGS/ADVISORIES...
None.
&&

$$

SHORT TERM...Roberg
LONG TERM...Roberg
AVIATION...Roberg


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