Area Forecast Discussion
Issued by NWS North Platte, NE

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271
FXUS63 KLBF 250951
AFDLBF

Area Forecast Discussion
National Weather Service North Platte NE
351 AM CST Sat Feb 25 2017

.SHORT TERM...(Today and tonight)
Issued at 350 AM CST Sat Feb 25 2017

Patches of arctic fog have formed across the Wrn Sandhills this
morning. Cameras from NDOR suggests the fog forms and dissipates vs
forming a solid deck. The RAP and HRRR models suggest the fog will
dissipate by mid morning with modest mixing.

H850mb temperatures rise a few degrees today but still remain below
0C. A check on the GFS high cloud procedure suggests a continuation
of cirrus with solid moisture in the 500-300mb layer. High
temperatures today have been marked down a few degrees below the
guidance.

Tonight...another piece of Pacific high pressure will build into Wrn
Neb. This in combination with snow cover...cirrus indicated in the
GFS and very low precipitable water (less than 0.15 inches) would
support lows in the single digits to zero across the Sandhills.
Winds tonight are a bit stronger suggesting less radiational cooling
and no fog potential.

.LONG TERM...(Sunday through Friday)
Issued at 350 AM CST Sat Feb 25 2017

Temperatures remain cool and below normal through
Thursday...temperatures warm back into the mid 40s to 50s Friday.
Did lower temperatures a bit on Monday to account for fresh snow
pack across the northern and eastern part of the forecast area,
where greatest snow amounts were seen. Main forecast concern this
period is the potential for precipitation early Tuesday morning as a
weak shortwave moves through. At this time it looks like the
precipitation will mostly be in the form of light snow. The rest of
the forecast period will remain dry.

&&

.AVIATION...(For the 06Z TAFS through 06Z Saturday night)
Issued at 1150 PM CST Fri Feb 24 2017

Latest satellite imagery and surface plot shows BKN-OVC high
clouds across western NEB with SCT high clouds over north central
NEB. VFR conditions currently prevail across much of the area
with the exception being in portions of the eastern NEB Panhandle.
There patchy fog is present based on obs and web cams and it`s
reducing visibility sub-one mile. Winds are light and variable to
calm in eastern NEB and far southwest NEB, elsewhere light
northwest winds are present. Main concerns this TAF package are
flight categories rest of tonight into tomorrow in western NEB.

Current thinking is patchy fog will remain a threat across the
eastern NEB Panhandle into the western Sandhills rest of tonight
into the early morning. Do not think fog will impact KVTN or KLBF
terminals at this time. Will continue to monitor the situation
and update as necessary.

Winds will continue to lessen rest of tonight across north
central NEB and the west of western NEB. Winds increase tomorrow
out of the west starting late morning/early afternoon to 9-12 kts
across the local forecast area.


&&

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

$$

SHORT TERM...CDC
LONG TERM...Gomez
AVIATION...ET



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