Laramie, Wyoming 7 Day Weather Forecast

Wx Forecast - Wx Discussion - Wx Aviation

059
FXUS65 KCYS 241116
AFDCYS

Area Forecast Discussion
National Weather Service Cheyenne WY
416 AM MST Sat Jan 24 2026

.KEY MESSAGES...

- Cold temperatures continue today, with another chance at sub
  negative 15F wind chill values tonight into Sunday morning.

- Another arctic front will push through the region Sunday,
  leading to frigid temperatures and wind chill values possible
  again Sunday night into Monday morning.

- The arctic front on Sunday will promote the development of widespread
  snowfall once again, with current accumulations between 0.5
  and 1.5 inches possible.

&&

.UPDATE...
Issued at 415 AM MST Sat Jan 24 2026

Frigid wind chill values are ongoing across Dawes County with
the lowest value around -37F. The snowpack has allowed
temperatures to drop more than forecast. Decided to upgrade the
Cold Weather Advisory for Dawes County to an Extreme Cold
Warning. Frigid wind chill values expected to continue through
noon today.

&&

.SHORT TERM /THROUGH SUNDAY NIGHT/...
Issued at 157 AM MST Sat Jan 24 2026

Cold temperatures will persist throughout much of the weekend as
upper-level trough remains in place aloft. The upper-level trough
that brought the region snow and cold temperatures will continue to
rotate across the Intermountain West, without propagating very far
east. Weak, 500mb cyclonic vorticity advection is expected today,
prevent the trough from moving very far east and keeping the cold
temperatures. The CWA will remain near the base of the upper-level
trough for the next day or so, before the trough finally starts
pushing off to the east. Northwesterly flow at 700mb persists today,
continuing to advect in cool, dry air from southern Canada. 700mb
temperatures will remain around -18 to -15C today, as the upper-
level trough remains firmly in place. Therefore, another cold day is
expected across the CWA with high temperatures in the teens
everywhere. Winds will continue be light today, leading to warmer
wind chill values in around to above 0F. The Cold Weather Advisory
continues until noon today, when wind chill values warm past
criteria. Snowfall has started coming to an end as of 08Z this
morning and will continue move out of the area through about 12Z
this morning.

Overnight tonight, temperatures will drop back into the low single
digits to negative teens across the region. With the fresh snow pack
across the Nebraska Panhandle, did drop temperatures overnight as
temperatures tanked more than expected this morning and the
Panhandle tends to get very cold when cold air and a fresh snow pack
are in place. Winds tonight will be weaker, however, with the
possibility of negative teens in the Panhandle, combined with a
fresh snow pack even light breezes could drop wind chill values back
towards the -20F mark. There is some uncertainty in this, due to
increasing cloud cover once again tonight. Decided to let day shift
take another look at temperatures and winds to determine if Cold
Weather Advisories are needed for the Panhandle once again tonight.

Another surface low pressure system looks to develop off the Black
Hills this evening through the overnight hours. This low will bring
the next blast of arctic air as the attendant cold front slides
across the region. The arctic front will pass through the region
late Sunday morning through the early afternoon hours. 700mb plummet
from the -17 to -15C range to the -20s and colder. High temperatures
on Sunday are a little uncertain due to frontal timing, but as of
now highs look to reach the teens by the early afternoon before
quickly falling behind the front. Overnight lows Sunday into Monday
morning drop into the negatives once again. Unfortunately, a modest
pressure gradient looks to set up across the region as the low moves
off to the  southeast and Canadian high pressure slides into the
northern CONUS. As a result, overnight wind chill values look to
potentially hit the -20F and colder mark, so Cold Weather headlines
may be needed in future forecast packages. The arctic front looks to
also bring another round of snow showers from the region, with
accumulations in the 0.5 to 1.5 inch range. Assuming the snow pack
from Friday remains in place, the Nebraska Panhandle may see colder
temperatures, likely in the negative double digits, especially as
fresh snow falls across the Panhandle.

&&

.LONG TERM /MONDAY THROUGH FRIDAY/...
Issued at 157 AM MST Sat Jan 24 2026

No major changes, see previous discussion below.

The cold lingers through Sunday to start the long term as morning
lows continue to sit in the low single digits to negatives, while
highs struggling to get out of the teens for the day. Meanwhile a
passing system should help to produce another round of snow for the
region, but once again a lack of more significant moisture should
preclude us seeing much more than an inch or two across most zones.
Lows descend similarly on Monday morning, but as ridging takes over
the western US once again temperatures will rebound back to near
normal or just under on Monday, with highs in the 30`s to low to mid
40`s through the remainder of the week. Pressure gradients tighten
on Monday though and bring another round of high winds, which will
likely be the primary hazard in the long term. In house guidance has
dropped a little bit, with probabilities now 60-75% for the wind
prone locations to see high wind gusts (58 mph) or greater, which
are still high enough to encourage the need for High Wind products
as we approach Monday. Thereafter, some passing systems may continue
to promote breezy winds, but the main moisture should remain just
outside of our region, with dry conditions and benign conditions
otherwise.

&&

.AVIATION /12Z TAFS THROUGH 12Z SUNDAY/...
Issued at 414 AM MST Sat Jan 24 2026

VFR conditions expected through the 12Z TAF period. Upper-level
clouds will remain in the area throughout the day. Lowering
ceilings are possible after 00Z. Light and variable winds
expected at all terminals.

&&

.CYS WATCHES/WARNINGS/ADVISORIES...
WY...Cold Weather Advisory until noon MST today for WYZ102-108.
     Winter Weather Advisory until 5 AM MST early this morning for
     WYZ110.
NE...Extreme Cold Warning until noon MST today for NEZ002.
     Cold Weather Advisory until noon MST today for NEZ003-019>021-
     054-055-095-096.

&&

$$

UPDATE...AM
SHORT TERM...AM
LONG TERM...AM/CG
AVIATION...AM