Chadron, Nebraska 7 Day Weather Forecast

Wx Forecast - Wx Discussion - Wx Aviation

693
FXUS65 KCYS 020701
AFDCYS

Area Forecast Discussion
National Weather Service Cheyenne WY
101 AM MDT Sun Aug 2 2026

.KEY MESSAGES...

- A heat wave will build into the area through Monday,
  producing near record high temperatures for Sunday.

- Elevated to critical fire weather conditions are expected
  Sunday and Monday.

- Some relief of the heat is possible during the middle of next
  week as a Canadian cold front moves towards the Front Range.

&&

.SHORT TERM /THROUGH MONDAY NIGHT/...
Issued at 101 AM MDT Sun Aug 2 2026

The main weather headline for Sunday will be a dominate ridge,
bringing benign weather along with soaring temperatures. So for
today, expect highs to flirt with records highs, possibly all-
time records such in Chadron with downsloping winds off of Pine
Ridge. Most of the temperatures across the area are at or near
the 99th percentile and/or all time maximum high temperatures.
We are expecting the hottest temperatures to occur in Sioux,
Dawes and, Box Butte Counties in the Nebraska Panhandle where
highs top out in the low to mid 100s. Here in Cheyenne and
across eastern Wyoming, highs will climb into the upper 90s to
low 100s. With these forecast high temperatures and dry air, a
Heat Advisory has been issued for a good portion of the CWA
during the afternoon hours on Sunday. The other thing that we
are monitoring with the southerly winds across the Nebraska
Panhandle are the increased fire weather concerns as min RH
values dip to and below 10 percent. Therefore, Red Flag Warnings
are in effect for this afternoon across the Nebraska Panhandle
while a two-day Red Flag Warning is out for our far western fire
zones of Carbon County as there will be poor overnight RH
recovery. Hi-res guidance continues to indicate a very low risk
of a shower or two coming off of the mountains this afternoon,
but with the current state of the environment, these showers
will be nothing more than VIRGA and only produce gusty winds at
the surface.

Some changes are in store at the start of the work week as the ridge
that dominated weather over the weekend pushes off to the east,
allowing a cold front to dive south across the region by Monday
afternoon. This will bring a cooler air mass which allows
temperatures to tank ever so slightly from the day prior. Many
locations west of the I-25 corridor will see highs top out in the
mid to upper 80s while highs to the east top out in the low to mid
90s. The other thing of note will be the possibility of gusty winds
Monday as the surface gradient tightens, so expect gusts up to 30
mph for many location across southeast Wyoming and the Nebraska
Panhandle. Due to these gusty conditions coupled with dry fuels and
ongoing lack of widespread precipitation, elevated fire weather
concerns will continue into Monday.

&&

.LONG TERM /TUESDAY THROUGH SATURDAY/...
Issued at 101 AM MDT Sun Aug 2 2026

Will keep this long term discussion short a sweet as there is not
much to talk about with the synoptic set-up that will take hold over
the region. Starting off the long term period, Tuesday marks a day
that we get a shot of cooler air as an upper-level trough digs
south. This will allow a surge of cooler air to infiltrate the CWA,
resulting in highs only topping out in the mid to upper 70s. A nice
break from the relentless heat that we have been experiencing. But,
don`t get to excited with a cooler day and if it will continue, this
is short-lived as we begin to heat right back up mid-week as ridging
begins to build back into the region. As ridging takes a hold, we
will remain dry with heat building into Thursday as highs will top
out in 90s east of the I-25 corridor and mid to upper 80s to the
west. The trend heading into next weekend continues as the ridge
becomes well established, we look to remain dry and hot. Possibly
breaking more temperature records, so stay tuned...

&&

.AVIATION /06Z TAFS THROUGH 06Z MONDAY/...
Issued at 1111 PM MDT Sat Aug 1 2026

Observations from regional terminals indicate the low level jet
is beginning to develop and is anticipated to peak in the next
few hours. Winds at KCDR are gusting out of the south at over 30
knots. A shallow inversion layer is in place over KBFF which
has increased the low level shear possibility. High level cloud
coverage is moving in from the west and is expected to be
present through the rest of the forecast period. By morning the
boundary layer lifts and the LLJ moves east leaving WY
terminals and KBFF with calm and variable winds. Tomorrow
afternoon diurnal heating is expected to create a deep mixed
layer which will increase wind gusts (15-25 knots) out of the
south and southeast at NE Panhandle and KCYS terminals. KLAR and
KRWL will be out of the west or southwest. There is a slight
risk of gusty outflow from high based convection primarily near
KCYS and KLAR which could cause variable wind gusts to 35 knots.
Into the evening and overnight hours another low level jet is
anticipated to develop bringing with it much the same conditions
as tonight.

&&

.CYS WATCHES/WARNINGS/ADVISORIES...
WY...Heat Advisory from 11 AM this morning to 9 PM MDT this evening
     for WYZ101-102-104-107>109-111-118-119.
     Red Flag Warning from noon today to 9 PM MDT Monday for
     WYZ421>423.
NE...Heat Advisory from 11 AM this morning to 9 PM MDT this evening
     for NEZ002-003-019>021-054-055-095-096.
     Red Flag Warning from noon today to 9 PM MDT this evening for
     NEZ434>437.

&&

$$

SHORT TERM...RZ
LONG TERM...RZ
AVIATION...RV