Area Forecast Discussion
Issued by NWS North Platte, NE

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FXUS63 KLBF 252335 AAA

Area Forecast Discussion...UPDATED
National Weather Service North Platte NE
635 PM CDT Sun Jun 25 2017

.SHORT TERM...(This evening through Monday)
Issued at 307 PM CDT Sun Jun 25 2017

For tonight, a warm front at 850 mb will lift northeast in
conjunction with a weak disturbance in northwest flow aloft. This
will bring a slight chance for showers and isolated thunderstorms
to southwest Nebraska by midnight, and including the central and
eastern areas after midnight. Most models generate very little
precipitation. Lows tonight remain very near previous forecast
form the upper 40s northwest to the lower 50s southeast.

On Monday, a broad trough will extend across the Great Lakes
Region and Midwest with upper ridging moving east into the Great
Basin. The upper flow will remain northwesterly yet on Monday. A
slight chance for showers/isolated thunderstorms for southeastern
areas as the disturbance exits the area. A weak backdoor cool
front will bring an east to northeast wind, limiting any warmup in
the east to the mid and upper 70s, while parts of the southwest
reach the lower 80s.

.LONG TERM...(Monday night through Sunday)
Issued at 307 PM CDT Sun Jun 25 2017

The upper ridge flattens out to near zonal Tuesday as a closed low
in Alberta Canada and upper trough in the Pacific Northwest moves
east. Good moisture return with dewpoints rising into the lower
60s central and east. A lead shortwave trough will move into the
Nebraska Panhandle Tuesday afternoon, to trigger thunderstorms in
the western Sandhills Tuesday afternoon. Most unstable capes
reach around 2500 j/kg just east of highway 61. Strong deep layer
shear up to 50 kts will be supportive of at least a few clusters
of severe thunderstorms Tuesday late afternoon into Tuesday
evening. A slight risk for severe thunderstorms is forecast
for all of north central Nebraska. Heavy rainfall also possible,
especially with any mcs which may develop.

Thunderstorms chances remain Wednesday through Saturday across
portions of the forecast area as the upper low in Alberta drops
southeast into the western Great Lakes Region. The best chances
for thunderstorms is for Thursday/Thursday evening. Highs will
range mainly in the 80s, with near 90 in the southwest.


.AVIATION...(For the 00Z TAFS through 00Z Monday evening)
Issued at 631 PM CDT Sun Jun 25 2017

Isolated showers over northwest Nebrask athis evening. Showers
likely to dissipate with the setting of the sun. Some isolated
thunderstorms possible after midnight over western Nebraska but
have not included them in either taf due to isolated nature. Mvfr
conditions to move north across southwest Nebraska between KLBF
and KIML through the early morning hours on Monday.




LONG TERM...Roberg
AVIATION...Power is the U.S. government's official web portal to all federal, state and local government web resources and services.