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783
FXUS63 KLBF 181940
AFDLBF

Area Forecast Discussion
National Weather Service North Platte NE
240 PM CDT Sun Apr 18 2021

.SHORT TERM...(This evening through Monday night)
Issued at 236 PM CDT Sun Apr 18 2021

Westerly downslope flow has boosted temperatures into the 60s this
afternoon across western and north central Nebraska. This is ahead
of a strong upstream cold front and shortwave that is currently
moving into the northern Rockies and Plains. The cold front will
quickly move southward this evening and reach the NE/SD border about
8pm or so then continue to move south through the area overnight. A
band of strong mid-level FGEN and lift will sag into the area behind
the front and be located across northern Nebraska by Monday morning.
Sounding profiles indicate strong warm air advection in the 750-650
mb layer through the morning hours then fades during the afternoon
as the band drops southward. Should be some decent snowfall across
portions of northwest into north central Nebraska late tonight into
Monday morning, with the snow or snow/rain mix weakening somewhat as
it shifts southward during the early to mid afternoon. Late in the
afternoon into Monday evening hours, a jet streak will drop through
the central Rockies then head east southeast into Kansas and
Oklahoma. Snow band should re-intensify within left exit region of
the streak across the southern Nebraska Panhandle, northeast
Colorado and southwest Nebraska during this time. After midnight the
band quickly shifts east/southeast away from the area with snow
ending. As far as accumulations, 1-3" still looks good across
northwest Nebraska late tonight into Monday morning where a Winter
Weather Advisory is already in effect. Then Monday evening a quick
1-3" is possible across portions of southwest Nebraska as the
snowband re-intensifies. Will hold off on any headlines for this
area as it will be 12-16 hours later and it is possible that the
location could change somewhat with a shift farther south, etc.
Otherwise cold and windy Monday behind the front with lows Monday
night dropping to between 18-25 as skies clear and winds decrease.

.LONG TERM...(Tuesday through Sunday)
Issued at 236 PM CDT Sun Apr 18 2021

Another weak wave drops southeast across the area Tuesday with
perhaps a bit of light precipitation and increased cloud cover once
again. In addition another cold front surge will keep northwest
winds up. Flow aloft will become more zonal toward the end of the
week with a warming trend. Highs by Saturday should be in the 60s
with 70s Sunday.

&&

.AVIATION...(For the 18Z TAFS through 18Z Monday afternoon)
Issued at 219 PM CDT Sun Apr 18 2021

A cold front will usher in MVFR and local IFR ceilings tonight
into Monday. Some snow will also be possible late tonight and
through the day Wednesday. Winds will shift to the north to
northeast at 10-20 kts as the front passes.


&&

.LBF WATCHES/WARNINGS/ADVISORIES...
Winter Weather Advisory from 1 AM CDT /midnight MDT/ to 7 PM CDT
/6 PM MDT/ Monday for NEZ004-094.

&&

$$

SHORT TERM...Taylor
LONG TERM...Taylor
AVIATION...Taylor