Area Forecast Discussion
Issued by NWS North Platte, NE

Home | Current Version | Previous Version | Text Only | Print | Product List | Glossary Off
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50

FXUS63 KLBF 191725

Area Forecast Discussion
National Weather Service North Platte NE
1125 AM CST Sun Nov 19 2017

Issued at 352 AM CST Sun Nov 19 2017

H5 analysis from earlier this evening, had a low located
over western Hudson Bay with a trough extending south into the Great
Lakes and Ohio Valley. West of this feature, a low amplitude ridge
of high pressure extended from central California north into
southwestern Canada. West of this ridge, a shortwave trough of low
pressure extended from the Alaska Panhandle, southwest into the
eastern Pacific. Broad northwesterly flow aloft extended from the
Central Plains into the northern Rockies and Pacific Northwest. A
plume of upper level moisture continues to stream into western
Canada, Pacific Northwest and northern Rockies overnight. High
clouds in association with this plume were present across the
Dakotas. Further south, clear skies and light winds were present
across western and north central Nebraska overnight. Readings as of
3 AM CST ranged from 19 at North Platte to 29 at Broken Bow.


.SHORT TERM...(Today and tonight)
Issued at 352 AM CST Sun Nov 19 2017

Today and Tonight...Surface high pressure will drop
south into the southern plains today. At the same time, a surface
trough of low pressure will begin to deepen from eastern Montana
into eastern Wyoming. Winds will shift around to the southwest this
afternoon, pushing warmer air into the forecast area. By 21z this
afternoon, H85 temps will range from 3 C in the far northeast to 8 C
in the far southwest. This will equate to lower 50s in the
northeast to around 60 in the southwest. Dry air and light westerly
winds will remain in place overnight. This coupled with clear skies,
will lead to lows in the lower to middle 20s. Will paint a strip of
lows near 20 in the Platte River valley as the light westerly winds
are favorable for cold air drainage.

.LONG TERM...(Monday through Saturday)
Issued at 352 AM CST Sun Nov 19 2017

Quiet weather across north central Nebraska is forecasted through
next week. Surface high pressure will slowly slide southeast through
Monday keeping conditions dry. Warm air advection will also allow
surface temperatures to rise into the low 60s on Monday.

Low pressure will track across southern Canada and the northern
Great Lakes region on Monday night. This low will drag a cold front
across the region. Precipitation will be basically non-existent
across Nebraska. However, there will be a noticeable temperature
change across the area with the frontal passage. Highs on Tuesday
will range from the low 50s across southwest Nebraska to the mid 30s
across north central Nebraska.

High pressure returns for the remainder of the week. Temperatures
return into the low 60s through Friday with dry weather persisting.
The next chance of precipitation will arrive on Saturday as a
shortwave pivots across the northern Plains. Temperatures also drop
into upper 40s to low 50s for the start of the weekend.


.AVIATION...(For the 18Z TAFS through 18Z Monday afternoon)
Issued at 1125 AM CST Sun Nov 19 2017

VFR anticipated for all west central Nebraska terminals through
the 18z forecast cycle. The latest guidance does show increasing
wind speeds aloft, which will mix down to the surface around or
shortly before 18z Monday. Thus breezy conditions are expected at
both KVTN and KLBF before the end of the 18z cycle. Forecast
confidence is high due to solid short term model agreement.




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