Chadron, Nebraska 7 Day Weather Forecast

Wx Forecast - Wx Discussion - Wx Aviation

738
FXUS65 KCYS 041959
AFDCYS

Area Forecast Discussion
National Weather Service Cheyenne WY
159 PM MDT Tue Aug 4 2026

.KEY MESSAGES...

- 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 TONIGHT/...
Issued at 158 PM MDT Tue Aug 4 2026

The upper level trough is pushing off to the east into the Hudson
Bay area. The upper level flow is kind of a mix of Northwesterly
flow turning more westerly about midway then slightly southwesterly
flow over the Panhandle. This flow pattern will slowly advect in the
warmer drier air over the West Coast and also slowly push the upper
level smoke out of our area. The WY AQA division has let the AQA
expire for the Southeast Wyoming area as most of the smoke is
remaining aloft and not mixing down as much but extended the AQA for
the rest of the state. Looking at satellite it confirms that most of
the smoke has left our region but there may be brief pockets of time
today where the smoke scent may be present. The upper level ridge
will slowly rebound over the Intermountain West returning the region
back into our hot southerly flow. The daily high temperatures will
raise from the 70`s of today into the 80`s on Wednesday and 90`s
Thursday. The 700mb temperatures will also increase from our cooler
5-6c into the 15/16c range by Thursday. Early Wednesday morning a
weak shortwave will push through the region while the upper level
ridge is still fairly weak. There is some vorticity and warm air
advection associated with the wave to slightly increase the synoptic
forcing. The thing thats in this waves favor to produce
precipitation is the timing. The wave coming early in the morning
allows for what marginal amount of moisture we have at the surface
to be lifted when the RH will be at its highest level so rain can
have a chance to make it at the surface. As for the amount, it will
probably only be a couple hundredths at best with the best chances
along the southern Nebraska Panhandle. Otherwise, starting Wednesday
afternoon will be another streak of minimal to no precipitation
chances until maybe Monday of next week. So throw on some sunglasses
and put on the sunscreen because its looks to be hot and dry soon.



&&

.LONG TERM /WEDNESDAY THROUGH MONDAY/...
Issued at 158 PM MDT Tue Aug 4 2026

Over the long term our CWA heats back up to the mid 90s to low 100s,
bringing back our seasonal warm temperatures. As the ridge builds,
warm dry air comes into the area, which will bring a risk of
critical fire weather conditions throughout the week. Temperatures
begin to heat up Thursday and into the weekend bringing those mid
90s to low 100s across the CWA. 700mb temperatures show values in
the mid teens, supporting seasonal temperatures. Over the weekend,
the ridge begins to flatten out, tightening the pressure gradient
over the northern areas of the CWA, bringing stronger winds and slim
chances of precipitation. Elevated fire weather conditions continue
over through the weekend with the warm dry air, little to no
precipitation, and marginally breezy winds.

&&

.AVIATION /18Z TAFS THROUGH 18Z WEDNESDAY/...
Issued at 1149 AM MDT Tue Aug 4 2026

Most terminals through this TAF period are expected to maintain VFR
conditions, except CYS which will hang onto MVFR ceilings for the
next hour. KLAR is the only terminal expected to have winds gusting
to around 25 knots. The Nebraska panhandle terminals will remain
overcast until late afternoon today. Otherwise, mostly sunny skies
and light winds are expected across other terminals. The smoke in
the area is expected to stay around the terminals for the next few
days.

&&

.CYS WATCHES/WARNINGS/ADVISORIES...
WY...None.
NE...None.

&&

$$

SHORT TERM...MM
LONG TERM...ML
AVIATION...ML