Area Forecast Discussion
Issued by NWS North Platte, NE

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299
FXUS63 KLBF 280434
AFDLBF

Area Forecast Discussion
National Weather Service North Platte NE
1134 PM CDT Sat May 27 2017

.SYNOPSIS...
Issued at 319 PM CDT Sat May 27 2017

At H5 ridge over the western CONUS and closed low over south
central Canada with trough into Great Basin. Weak high over the
eastern Gulf placing southern CONUS in southwest to northeast zonal
flow.

&&

.SHORT TERM...(This evening through Sunday)
Issued at 319 PM CDT Sat May 27 2017

Showers over western Nebraska due to 700mb forcing and will move
slowly east through the afternoon. Cold air aloft and cloud cover
with temperatures falling through the afternoon. Upper trough will
move through over night with clearing skies moving in from the west
and precipitation ended. Have kept sprinkles into 3z tonight based
on HRRR. Light west winds will help keep temperatures up somewhat
but temperatures similar to last nights. Have gone with cooler
guidance with lows ranging from 40 to 50 west to east across the
forecast area. Sunday will see dry conditions with highs ranging
from the upper 60s northwest to the mid 70s south and breezy
northwest winds increasing through the afternoon.

.LONG TERM...(Sunday night through Saturday)
Issued at 319 PM CDT Sat May 27 2017

Forecast area will remain under the influence of the upper low
over southern Canada through mid week as it drifts slowly east
into southwest Canada. Height falls to continue over the northern
plains with backdoor cool fronts and north to northwest flow and
weak waves moving through the flow providing impetus for afternoon
and evening thunderstorms. Temperatures on the rise after mid
week with increasing chances for precipitation Thursday and Friday
as an upper system moves across the southern plains under the
ridge.

&&

.AVIATION...(For the 06Z TAFS through 06Z Sunday night)
Issued at 1120 PM CDT Sat May 27 2017

VFR conditions will prevail through the TAF Period. Latest
satellite and surface plot currently shows mostly clear skies
across much of the local forecast area, except for a corridor of
broken mid-level clouds with ceilings about 10 kft stretching from
far northwest NEB into far south central SD. These clouds will
continue to sag southward into the Sandhills and are expected to
slowly dissipate going through the small hours.

Over the next 24 hours, main aviation concerns revolve around
breezy winds. Winds start increasing mid morning with gusts
peaking up to about 25 MPH tomorrow, strongest over central NEB.
Otherwise, tomorrow, mostly sunny skies will prevail with
increasing mid-level/upper-level clouds tomorrow evening.

&&

.HYDROLOGY...
Issued at 319 PM CDT Sat May 27 2017

Lewellen on the North Platte River above McConaughy will remain in
bankfull state through the first of the week with rises into the
middle of next week. Have continued the river statement.

&&

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

$$

SYNOPSIS...Power
SHORT TERM...Power
LONG TERM...Power
AVIATION...ET
HYDROLOGY...Power



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