Chadron, Nebraska 7 Day Weather Forecast

Wx Forecast - Wx Discussion - Wx Aviation

262
FXUS65 KCYS 032340
AFDCYS

Area Forecast Discussion
National Weather Service Cheyenne WY
540 PM MDT Mon Aug 3 2026

.KEY MESSAGES...

- Elevated to critical fire weather conditions continue today
  due for Low RH and marginal winds.

- A Cool Airmass will descend over the Intermountain West for
  cooler temperatures Tuesday.

- Warming resumes Wednesday as a ridge builds back in, with
  similar temperatures next weekend as this past weekend.

&&

.SHORT TERM /THROUGH TUESDAY NIGHT/...
Issued at 210 PM MDT Mon Aug 3 2026

An upper level low is traversing the Canadian Providences sending a
weak trough and cold front through the Intermountain West. This cold
front will drop the temperature a few degrees as it pushes through
this afternoon and is expected to stall out in Northern Colorado
this evening. Due to the summer sun the effect of the cold front
won`t really be felt until the overnight period as temperatures drop
into the 40`s and 50`s. A cooler airmass will settle over the area
tonight dropping 700mb temperatures to about 6/7C by Tuesday
morning. This cooler airmass will slowly heat up leaving the high
temperature for the Intermountain West in the 70`s Tuesday and 70`s
and 80`s Wednesday. The main upper level ridge will slowly rebound
during this time as well advecting in those warmer temperatures and
drier air into the region during this time as well. This cooler
airmass also raises the afternoon RH values into the 20`s and 30`s
with the exception of Carbon county which will still remain our
driest region with RH values between 10 and 15 percent. This area
of low RH values will expand eastward into Albany and Converse
county as the warmer temperatures also slowly rise. Finally, the
smoke thats currently overhead will slowly push eastward as the day
progress and slowly clear out over the next couple days. An Air
Quality Alert (AQA) was issued by the Wyoming Air Quality Division
for the Southeast Wyoming area. Nebraska AQ division is holding off
as the models have little to no smoke mixing down to the surface
tomorrow.

&&

.LONG TERM /WEDNESDAY THROUGH MONDAY/...
Issued at 210 PM MDT Mon Aug 3 2026

The long term will be largely uneventful as we see high pressure
building back in, bringing warm and dry weather alongside a
risk of critical fire weather conditions. Wednesday starts with
some lingering precipitation in the Nebraska Panhandle as the
trough is departing the region, but this will be quickly
escaping and bringing in a dry spell that will last through the
remainder of the long term. That being said, Wednesday should
still be quite a fair late summer day, with temperatures in the
70`s to 80`s across our area thanks to the cold front that`s
currently passing over the region. But a high pressure ridge
will build back in, dominating into the weekend with highs
gradually rising back into the 90`s to triple digits for most of
our CWA outside of the mountains. Along with this will come dry
air, with daytime relative humidity values into the single
digit to teens each day. Because of this, expect an elevated
fire weather environment, with the potential to become critical
with any increase in winds. This could be notably possible over
the weekend when the ridge flattens due to troughing to our
north, causing an enhanced pressure gradient primarily for our
northern zones bringing breezy winds. Otherwise, summer has no
intention of leaving early as our streak of warm temperatures
continues.

&&

.AVIATION /00Z TAFS THROUGH 00Z WEDNESDAY/...
Issued at 540 PM MDT Mon Aug 3 2026

VFR conditions are expected through the TAF period as we remain
under NNE flow behind the passage of a cold front this afternoon
which has since stalled out just south of the Colorado border. There
is quite a bit of smoke aloft, however visibilities are anticipated
to remain well above MVFR criteria. CIGs may briefly lower to 5-10
kft around sunrise mainly for KCYS and the Nebraska terminals under
moist, easterly upslope flow before the shallow moist layer mixes
out by mid-morning and cloud heights rise. Peak gusts of 20-25 knots
out of the NE should taper off overnight in the Nebraska Panhandle,
before winds gradually veer to more ESE by tomorrow morning.

&&

.CYS WATCHES/WARNINGS/ADVISORIES...
WY...Red Flag Warning until 9 PM MDT this evening for WYZ417-418-
     420>423-425-427-430>433.
     Air Quality Alert until 11 AM MDT Tuesday for WYZ101>119.
NE...Red Flag Warning until 9 PM MDT this evening for NEZ434>437.

&&

$$

SHORT TERM...MM
LONG TERM...CG
AVIATION...NB