High Wind Warning 28, NWS Cheyenne, WY

300 
WWUS75 KCYS 080633
NPWCYS

URGENT - WEATHER MESSAGE
National Weather Service Cheyenne WY
1233 AM MDT Wed Apr 8 2026

WYZ116-117-081800-
/O.EXB.KCYS.HW.W.0028.260408T0900Z-260408T1800Z/
South Laramie Range-South Laramie Range Foothills-
Including the cities of Horse Creek, Pumpkin Vine, Buford,
Vedauwoo, Federal, and Whitaker
1233 AM MDT Wed Apr 8 2026

...HIGH WIND WARNING IN EFFECT UNTIL NOON MDT TODAY...

* WHAT...West winds 25 to 35 mph with gusts up to 60 mph expected.

* WHERE...South Laramie Range and Foothills including the Interstate 
  80 Summit between Cheyenne and Laramie.

* WHEN...Until noon MDT today.

* IMPACTS...Mainly to transportation. Strong cross winds will be 
  hazardous to light weight or high profile vehicles, including 
  campers and tractor trailers.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A High Wind Warning means a hazardous high wind event is expected or 
occurring. Sustained wind speeds of at least 40 MPH or gusts of 58 
MPH or stronger can lead to property damage.

&&

$$

WYZ110-082100-
/O.CON.KCYS.HW.W.0028.000000T0000Z-260408T2100Z/
North Snowy Range Foothills-
Including the cities of Arlington and Elk Mountain
1233 AM MDT Wed Apr 8 2026

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 3 PM MDT THIS 
AFTERNOON...

* WHAT...West winds 30 to 40 mph with gusts up to 60 mph.

* WHERE...North Snowy Range Foothills including Arlington and Elk 
  Mountain along Interstate 80.

* WHEN...Until 3 PM MDT this afternoon.

* IMPACTS...Mainly to transportation. Strong cross winds will be 
  hazardous to light weight or high profile vehicles, including 
  campers and tractor trailers.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A High Wind Warning means a hazardous high wind event is expected or 
occurring. Sustained wind speeds of at least 40 MPH or gusts of 58 
MPH or stronger can lead to property damage.

&&

$$

Mose

731 
WWUS75 KCYS 081759
NPWCYS

URGENT - WEATHER MESSAGE
National Weather Service Cheyenne WY
1159 AM MDT Wed Apr 8 2026

WYZ116-117-081900-
/O.EXP.KCYS.HW.W.0028.000000T0000Z-260408T1800Z/
South Laramie Range-South Laramie Range Foothills-
Including the cities of Pumpkin Vine, Federal, Horse Creek,
Vedauwoo, Buford, and Whitaker
1159 AM MDT Wed Apr 8 2026

...HIGH WIND WARNING WILL EXPIRE AT NOON MDT TODAY...

Winds have diminished below warning thresholds. However, wind gusts 
up to 50 mph will be possible over the next few hours.

$$

WYZ110-082100-
/O.CON.KCYS.HW.W.0028.000000T0000Z-260408T2100Z/
North Snowy Range Foothills-
Including the cities of Elk Mountain and Arlington
1159 AM MDT Wed Apr 8 2026

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 3 PM MDT THIS 
AFTERNOON...

* WHAT...West winds 25 to 35 mph with gusts up to 60 mph possible.

* WHERE...North Snowy Range Foothills including Arlington and Elk 
  Mountain along Interstate 80.

* WHEN...Until 3 PM MDT this afternoon.

* IMPACTS...Mainly to transportation. Strong cross winds will be 
  hazardous to light weight or high profile vehicles, including 
  campers and tractor trailers.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A High Wind Warning means a hazardous high wind event is expected or 
occurring. Sustained wind speeds of at least 40 MPH or gusts of 58 
MPH or stronger can lead to property damage.

&&

$$

MM

260 
WWUS75 KCYS 082040
NPWCYS

URGENT - WEATHER MESSAGE
National Weather Service Cheyenne WY
240 PM MDT Wed Apr 8 2026

WYZ110-082145-
/O.EXP.KCYS.HW.W.0028.000000T0000Z-260408T2100Z/
North Snowy Range Foothills-
Including the cities of Elk Mountain and Arlington
240 PM MDT Wed Apr 8 2026

...HIGH WIND WARNING WILL EXPIRE AT 3 PM MDT THIS AFTERNOON...

Winds have diminished below warning thresholds. However, wind gusts 
up to 50 mph will be possible over the next few hours.

$$

MM

Area Forecast Discussion
National Weather Service Cheyenne WY
235 PM MDT Tue Apr 7 2026

.KEY MESSAGES...

- Winds will increase across Southeast Wyoming Tuesday into
  Wednesday, increasing fire concerns and potential for strong
  winds in the wind prone areas.

- A High Wind Watch is in effect for the Arlington/Elk Mountain
  wind prone area from midnight tonight through 3 PM Wednesday.

- Greater precipitation chances return to Southern Wyoming and
  Western Nebraska into the weekend, confidence in precipitation
  amounts remains low.

&&

.SHORT TERM /THROUGH THURSDAY NIGHT/...
Issued at 134 PM MDT Tue Apr 7 2026

Tonight...Visible satellite imagery shows some cumulus development
across portions of southeast Wyoming, south of a Rawlins to
Torrington line. Not expecting much development from this, though a
stray shower or two may develop. Will maintain the inherited Red
Flag Warning through early this evening as trends show decreasing
humidities and increasing winds. A shortwave trough aloft moving
across eastern Montana will send the next cold front into our
northern counties late, though with little sensible weather and only
a wind shift to the north. Relatively mild overnight with decent low
level mixing. 40 to 50 knot 700 mb flow develops after midnight, and
based on the local wind model and 850 and 700 mb Craig to Casper
height differences, we expect winds to pick up near Arlington and
Elk Mountain, though confidence not high enough to upgrade at this
time and so will leave the current High Wind Watch in effect.

Wednesday...As the cold front moves further south, with low level
upslope developing, temperatures will be somewhat cooler, and 700 mb
temperatures near 1 Celsius yielding maximum temperatures in the
upper 50s and lower 60s. Will need to keep an eye on winds and
relative humidity for Carbon and Albany Counties in the afternoon
for elevated fire weather concerns.

Wednesday night...Expecting a cooler night compared to the previous
night in the cooler airmass behind the cold front.

Thursday-Thursday night...A warming trend begins as 700 mb
temperatures rise to near 4 Celsius. As a shortwave trough moves
overhead near peak heating and a low level convergence boundary sets
up over our southern counties, it looks like scattered showers
should develop in the afternoon and evening south of a Rawlins to
Alliance line in the vicinity of a low and mid level theta-e ridge
axis. The showers will continue into the evening hours, and then
continue over the southern Nebraska Panhandle after midnight.

&&

.LONG TERM /FRIDAY THROUGH MONDAY/...
Issued at 134 PM MDT Tue Apr 7 2026

Unsettled weather looks to develop during the long term forecast
period with numerous waves of energy and precipitation chances from
Friday through Tuesday of next week. The culprit for the persistent
active weather will be a large upper-level low pressure system which
will move into the Pacific coast and remain generally stationary for
several days. Upper-level troughing with lower heights will be the
norm across the Rocky Mountain region. Friday will likely be the
driest day in the period as the main region of energy and lift
remains fairly well to the west. However, increasing mid-level
moisture and surface heating will result in low-end instability over
the higher terrain of southern Wyoming (around 500 J/kg of SBCAPE)
and a few isolated afternoon showers and possibly some thunder will
be possible. On Saturday, ensemble guidance is in good agreement
showing seasonably high moisture return in the high plains of
Nebraska and into far southeast Wyoming. With increasing westerly
flow aloft ahead of the upper-level low, surface south to
 flow, and around 500-800 J/kg of SBCAPE, a few
isolated afternoon showers and thunderstorms are possible to the
east of the I-25 corridor. While greater moisture return will likely
remain well to the south of our region, this overall setup does
favor a few isolated stronger storms which may be capable of some of
the first small hail (less than 1/2 inch) of the year in the high
plains.

Forecast confidence decreases from Sunday onward as the exact
details of the movement of the broad upper-level low become quite
muddled and varied in ensemble guidance. There is generally good
support for continued troughing in the west from Sunday through
Tuesday, however a push of slightly drier air on Sunday behind a
vort max may help keep the forecast mostly dry this day. Renewed
shower and thunderstorm activity is possible on Monday and Tuesday
as most guidance brings the core of the upper-level system through
the eastern Rockies and High Plains by this time. However, the exact
track and strength of any surface cyclogenesis east of the mountains
will ultimately determine how much precipitation falls. While
drought-busting rains are not likely, precipitation should run above-
average in the long term with the potential for most locations to
pick up at least a half of an inch of liquid by mid-next-week.

&&

.AVIATION /18Z TAFS THROUGH 18Z WEDNESDAY/...
Issued at 1150 AM MDT Tue Apr 7 2026

There is a small chance for light showers this afternoon and
evening. Some models have showers developing as early as 20z
and ending around 04z. There is a small cumulus section
developing over KLAR right now however, looking at model
soundings it will be most likely to have virga occur. VCSH was
put in for KLAR, KCYS, and KBFF to account for the virga with
some possible erratic winds underneath the showers. By 04z the
showers are expected to dissipate across the TAF area. Ceilings
are expected to be rather high throughout the day typically
10,000ft+ but near KLAR the clouds may drop to around 4,000ft.

&&

.CYS WATCHES/WARNINGS/ADVISORIES...
WY...Red Flag Warning until 8 PM MDT this evening for WYZ417-418-
     432-433.
     High Wind Watch from midnight MDT tonight through Wednesday
     afternoon for WYZ110.
NE...None.

&&

SHORT TERM...RUBIN
LONG TERM...MAC
AVIATION...MM

Hazardous Weather Outlook
National Weather Service Cheyenne WY
143 PM MDT Tue Apr 7 2026

NEZ002-003-019>021-054-055-095-096-WYZ101>119-081200-
Dawes County-Box Butte County-Scotts Bluff County-Banner County-
Morrill County-Kimball County-Cheyenne County-
Northern Sioux County-Southern Sioux County-
Converse County Lower Elevations-Niobrara County-
North Laramie Range-Ferris/Seminoe/Shirley Mountains-
Shirley Basin-Central Laramie Range and Southwest Platte County-
East Platte County-Goshen County-Central Carbon County-
North Snowy Range Foothills-Southwest Carbon County-
Sierra Madre Range-Upper North Platte River Basin-Snowy Range-
Laramie Valley-South Laramie Range-South Laramie Range Foothills-
Central Laramie County-East Laramie County-
143 PM MDT Tue Apr 7 2026

This hazardous weather outlook is for portions of panhandle
Nebraska...east central Wyoming...south central Wyoming and
southeast Wyoming.

.DAY ONE...TONIGHT AND WEDNESDAY

A Red Flag Warning is in effect for northern portions of
southeast Wyoming until 8 PM this evening.

A High Wind Watch is in effect for the North Snowy Range Foothills
including Arlington and Elk Mountain starting at midnight and
extending until 3 PM Wednesday afternoon.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY

Winds will increase across Southeast Wyoming into Wednesday,
increasing fire weather concerns and the potential for strong winds
in the wind prone areas. Greater precipitation chances return to
southern Wyoming and western Nebraska into the weekend,
with confidence in precipitation amounts remaining low.

.Spotter information statement...

Spotter activation will not be needed.