533 
WUUS55 KCYS 120027
SVRCYS
NEC045-165-120115-
/O.NEW.KCYS.SV.W.0307.250912T0027Z-250912T0115Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Cheyenne WY
627 PM MDT Thu Sep 11 2025

The National Weather Service in Cheyenne has issued a

* Severe Thunderstorm Warning for...
  Western Dawes County in the Panhandle of Nebraska...
  Northeastern Sioux County in the Panhandle of Nebraska...

* Until 715 PM MDT.

* At 627 PM MDT, a severe thunderstorm was located near Fort Robinson
  State Park, or 31 miles southwest of Chadron, moving northeast at
  30 mph.

  HAZARD...60 mph wind gusts and quarter size hail.

  SOURCE...Radar indicated.

  IMPACT...Hail damage to vehicles is expected. Expect wind damage 
           to roofs, siding, and trees.

* Locations impacted include...
  Crawford, Whitney, Roberts Trailhead Campground, Whitney Lake,
  Soldier Creek Campground, Fort Robinson State Park, and Belmont.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 4243 10355 4250 10369 4261 10378 4294 10336
      4258 10299
TIME...MOT...LOC 0027Z 235DEG 25KT 4256 10352 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

Mose

886 
WWUS55 KCYS 120040
SVSCYS

Severe Weather Statement
National Weather Service Cheyenne WY
640 PM MDT Thu Sep 11 2025

NEC045-165-120049-
/O.CAN.KCYS.SV.W.0307.000000T0000Z-250912T0115Z/
Dawes NE-Sioux NE-
640 PM MDT Thu Sep 11 2025

...THE SEVERE THUNDERSTORM WARNING FOR WESTERN DAWES AND NORTHEASTERN
SIOUX COUNTIES IS CANCELLED...

The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning has been cancelled.

&&

LAT...LON 4243 10355 4250 10369 4261 10378 4294 10336
      4258 10299
TIME...MOT...LOC 0038Z 235DEG 25KT 4261 10342 

$$

Mose