Area Forecast Discussion
Issued by NWS North Platte, NE

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FXUS63 KLBF 252316 AAA

Area Forecast Discussion...UPDATED
National Weather Service North Platte NE
516 PM CST Sun Feb 25 2018

Issued at 318 PM CST Sun Feb 25 2018

H5 analysis from earlier this morning had a shortwave
located over western Ontario into the LP of Michigan. Southwest of
this feature, a second shortwave trough of low pressure was anchored
across the four corners. Currently, this feature has migrated east
into northern New Mexico per WV imagery. Current vis satellite
imagery has some convective cloudiness developing from nern New
Mexico into the Texas panhandle. Upstream of the four corners
system, a shortwave trough of low pressure was situated off the
coast of British Columbia. Across the central CONUS, a surface
trough of low pressure extended from north central Montana SSE into
far eastern Wyoming and eastern Colorado. Winds east of this feature
were fairly gusty this afternoon particularly west of highway 61.
East of this route, thick snow cover has limited mixing as well as
holding down temperatures this afternoon. Under clear skies, 3 PM
CST temperatures ranged from 33 at O`Neill to 43 at Imperial.


.SHORT TERM...(This evening through Monday)
Issued at 318 PM CST Sun Feb 25 2018

H5 hts will begin to rise tonight, as a trough of low
pressure slides east into the lower Mississippi valley. At the same
time, a trough will deepen across the western CONUS, which will
build a low amplitude ridge across the central CONUS for Monday.
With snow cover and light winds tonight, lows will reach the teens
with cooler readings in the Platte River Valley. For Monday, with
southerly winds and ht rises aloft increasing, H85 temperatures will
rise to 4 to 6C Monday afternoon. Highs Monday will be generally in
the upper 40s. Guidance was undercut Monday, as most of the CWA
remains snow covered.

.LONG TERM...(Monday night through Sunday)
Issued at 318 PM CST Sun Feb 25 2018

.Mid range...Monday night through Wednesday...A shortwave trough of
low pressure will drop south along the California coast Monday night
into Tuesday. At the same time, a northern stream trough of low
pressure will track across Montana into northern Minnesota. This
northern stream feature will force a cold front through the forecast
area Monday night. High pressure will build in behind the front on
Tuesday with easterly winds present north of the front across the
western half of the forecast area. Highs will be cool on Tuesday
behind the front with readings mainly in the upper 30s to lower 40s.
High pressure will track east Tuesday night into the upper
Mississippi valley. At the same time, surface low pressure will
deepen across southeastern Colorado east of an approaching trough of
low pressure. This feature will lift into New Mexico on Wednesday,
with precipitation developing east of the surface low over eastern
Kansas into eastern Nebraska. The models continue to trend east and
south with the best lift this morning. With this in mind, will go
with a dry forecast with the exception of portions of Wheeler
county. Where some light pcpn may back into the area from the east

Long range...Wednesday night through Sunday...The upper level trough
will slide east of the area Wednesday night. This will allow ridging
aloft to build into the central CONUS Thursday into Friday. Highs
will bounce back into the 40s for Thursday, with 40s to lower 50s
for Friday. The ridge aloft will begin to break down on Saturday
with a nice H85 thermal ridge building into southwestern Nebraska.
Highs will reach into the upper 40s to mid 50s which will be the
warmest day of the forecast period. A cold front will pass through
the region Saturday night. Highs Sunday will reach the lower to
middle 40s.


.AVIATION...(For the 00Z TAFS through 00Z Monday evening)
Issued at 516 PM CST Sun Feb 25 2018

VFR is expected all areas overnight and Monday.

A storm system off the coast of British Columbia will move south
toward CA tonight and Monday. A few mid and high level clouds are
expected across Wrn and Ncntl Nebraska during this time.




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