Chadron, Nebraska 7 Day Weather Forecast

Wx Forecast - Wx Discussion - Wx Aviation

973
FXUS65 KCYS 052029
AFDCYS

Area Forecast Discussion
National Weather Service Cheyenne WY
229 PM MDT Wed Aug 5 2026

.KEY MESSAGES...

- RED FLAG WARNING IN EFFECT UNTIL 8 PM MDT THURSDAY FOR GUSTY
  WINDS, LOW HUMIDITY, AND POOR OVERNIGHT RECOVERIES FOR
  LOCATIONS NEAR THE SNOWY RANGE AND FOOTHILLS AND THE MEDICINE
  BOW NATIONAL FOREST.

- RED FLAG WARNING IN EFFECT FROM 11 AM TO 8 PM MDT THURSDAY FOR
  GUSTY WINDS AND LOW HUMIDITY FOR MUCH OF SOUTHEAST WYOMING.

- HOT TEMPERATURES RETURN FOR THURSDAY THROUGH SUNDAY WITH
  SLIGHTLY COOLER TEMPERATURES FOR MONDAY THROUGH WEDNESDAY.

&&

.SHORT TERM /THROUGH THURSDAY NIGHT/...
Issued at 211 PM MDT Wed Aug 5 2026

Tonight...Another quiescent and nice night for leaving windows open
as minimum temperatures dip into the 50s at lower elevations, with
40s for the mountains. Northwest flow aloft prevails with a decent
surface trough developing over southeast Wyoming. Looking at the
boundary layer winds and 850 mb winds, expect to see a decent low
level jet form across the Nebraska Panhandle, with south winds after
midnight of 25 to 35 mph gusting to 45 mph at the usual suspects,
Chadron and Alliance. The low level jet is likely to subside towards
sunrise.

Thursday...The heat returns with a much drier airmass advecting
eastward across our counties, and with 700 mb temperatures reaching
14 to 18 Celsius, expect yielded high temperatures to be in the
upper 80s to lower 90s west of I-25, with 90s to near 100 degrees
east of I-25. Fortunately, relative humidities will be bone dry,
making the apparent, or heat index temperatures in the tolerable
range.

Main challenge will be fire weather concerns with relative humdities
only in the 5 to 15 percent range in the afternoon and early
evening, and with projected mid level winds around 700 mb, 10000
feet MSL, expected to mix down to the surface, we have felt it
prudent and necessary to issue a Red Flag Warning for much of
southeast Wyoming, with the only exceptions being southern Platte,
southern Goshen and far eastern Laramie Counties where winds will
not be at critical levels. Fortunately, the Nebraska Panhandle
winds will remain below critical thresholds. Our Red Flag
Warning will extend from 11 AM to 8 PM Thursday.

Thursday night...Quiet and tranquil weather will continue with a
weak surface trough or weak cold front backing into our northeast
Counties but with no sensible weather anticipated with cold frontal
passage, only a switch to north and northeast winds north of a
Douglas to Scottsbluff line. The airmass moderates with minimum
temperatures in the mid to upper 50s at lower elevations, with 40s
for the mountains, still quite pleasant sleeping weather to have
windows open and fresh air from outside.

&&

.LONG TERM /FRIDAY THROUGH TUESDAY/...
Issued at 211 PM MDT Wed Aug 5 2026

With this synoptic setup, we will see much of the same weather
over the forecast period. Friday starts us off with the ridge
over our area. This will bring warm temperatures and dry air to
the CWA. The 700mb temperatures are in the mid teens to lower
20C, supporting warm temperatures across the CWA, before
temperatures return to the mid teens on Tuesday, cooling the
area down some. Fire weather will be a concern through this
forecast period with dry air, gusty winds, and little to no
chances of precipitation through Monday. Daytime RH values go
down to the single digits to teens each day with little
overnight recovery. Fire weather has the potential to become
critical with any increases in winds. Monday afternoon through
Tuesday, a trough starts building over the PNW, potentially
drawing in some moisture and giving some relief to fire weather
conditions as it nears closer to our area.

&&

.AVIATION /18Z TAFS THROUGH 18Z THURSDAY/...
Issued at 1152 AM MDT Wed Aug 5 2026

Low clouds/CIGs are still impacting KSNY. Overcast clouds prevail at
KSNY until later this afternoon when the clouds clear. All other
terminals have cleared out the low clouds/CIGs from last night and
are expected to continue having mostly clear skies. Winds are calm
across all terminals except for KCYS and KLAR. KCYS and KLAR are
expected to have winds gusting to 20 knots out of NNW this
afternoon.

&&

.CYS WATCHES/WARNINGS/ADVISORIES...
WY...Air Quality Alert until 11 AM MDT Thursday for WYZ101>119.
     Red Flag Warning from 11 AM to 8 PM MDT Thursday for
     WYZ417>425-428>430.
     Red Flag Warning until 8 PM MDT Thursday for WYZ426-427.
NE...None.

&&

$$

SHORT TERM...RUBIN
LONG TERM...ML
AVIATION...ML