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Home Return to list Severe Thunderstorm Warning 0008 Issued by the Cheyenne Forecast Office
Action: New Issued At: 2026-05-21 16:30:33
436
WUUS55 KCYS 212130
SVRCYS
NEC157-165-212215-
/O.NEW.KCYS.SV.W.0008.260521T2130Z-260521T2215Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Cheyenne WY
330 PM MDT Thu May 21 2026
The National Weather Service in Cheyenne has issued a
* Severe Thunderstorm Warning for...
North central Scotts Bluff County in the Panhandle of Nebraska...
Southeastern Sioux County in the Panhandle of Nebraska...
* Until 415 PM MDT.
* At 329 PM MDT, a severe thunderstorm was located 7 miles northwest
of Lake Alice, or 12 miles north of Scottsbluff, moving east at 10
mph.
HAZARD...60 mph wind gusts and half dollar size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage
to roofs, siding, and trees.
* Locations impacted include...
Lake Alice.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4197 10381 4208 10384 4219 10350 4199 10346
TIME...MOT...LOC 2129Z 259DEG 9KT 4203 10374
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.25 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Goatley
Action: Continued Issued At: 2026-05-21 16:34:33
539
WWUS55 KCYS 212134
SVSCYS
Severe Weather Statement
National Weather Service Cheyenne WY
334 PM MDT Thu May 21 2026
NEC157-165-212215-
/O.CON.KCYS.SV.W.0008.000000T0000Z-260521T2215Z/
Scotts Bluff NE-Sioux NE-
334 PM MDT Thu May 21 2026
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 415 PM MDT
FOR NORTH CENTRAL SCOTTS BLUFF AND SOUTHEASTERN SIOUX COUNTIES...
At 334 PM MDT, a severe thunderstorm was located 7 miles northwest of
Lake Alice, or 12 miles north of Scottsbluff, moving east at 10 mph.
HAZARD...Ping pong ball size hail and 60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...People and animals outdoors will be injured. Expect hail
damage to roofs, siding, windows, and vehicles. Expect wind
damage to roofs, siding, and trees.
Locations impacted include...
Lake Alice.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4197 10381 4208 10384 4219 10350 4199 10346
TIME...MOT...LOC 2134Z 254DEG 8KT 4204 10374
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.50 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Goatley
Action: Continued Issued At: 2026-05-21 16:48:04
972
WWUS55 KCYS 212147
SVSCYS
Severe Weather Statement
National Weather Service Cheyenne WY
347 PM MDT Thu May 21 2026
NEC157-165-212215-
/O.CON.KCYS.SV.W.0008.000000T0000Z-260521T2215Z/
Scotts Bluff NE-Sioux NE-
347 PM MDT Thu May 21 2026
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 415 PM MDT
FOR NORTH CENTRAL SCOTTS BLUFF AND SOUTHEASTERN SIOUX COUNTIES...
At 347 PM MDT, a severe thunderstorm was located near Lake Alice, or
11 miles north of Scottsbluff, moving east at 10 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...
Lake Alice.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4197 10377 4208 10380 4219 10350 4199 10346
TIME...MOT...LOC 2147Z 258DEG 7KT 4204 10371
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Goatley
Action: Continued Issued At: 2026-05-21 16:56:34
084
WWUS55 KCYS 212156
SVSCYS
Severe Weather Statement
National Weather Service Cheyenne WY
356 PM MDT Thu May 21 2026
NEC157-165-212215-
/O.CON.KCYS.SV.W.0008.000000T0000Z-260521T2215Z/
Scotts Bluff NE-Sioux NE-
356 PM MDT Thu May 21 2026
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 415 PM MDT
FOR NORTH CENTRAL SCOTTS BLUFF AND SOUTHEASTERN SIOUX COUNTIES...
At 356 PM MDT, a severe thunderstorm was located near Lake Alice, or
11 miles north of Scottsbluff, moving east at 10 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage to
roofs, siding, and trees.
Locations impacted include...
Lake Alice.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4199 10376 4208 10378 4217 10352 4199 10349
TIME...MOT...LOC 2156Z 262DEG 7KT 4204 10370
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Goatley
Action: Expired Issued At: 2026-05-21 17:10:35 558 WWUS55 KCYS 212210 SVSCYS Severe Weather Statement National Weather Service Cheyenne WY 410 PM MDT Thu May 21 2026 NEC157-165-212220- /O.EXP.KCYS.SV.W.0008.000000T0000Z-260521T2215Z/ Scotts Bluff NE-Sioux NE- 410 PM MDT Thu May 21 2026 ...THE SEVERE THUNDERSTORM WARNING FOR NORTH CENTRAL SCOTTS BLUFF AND SOUTHEASTERN SIOUX COUNTIES WILL EXPIRE AT 415 PM MDT... 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 will be allowed to expire. However, small hail is still possible with this thunderstorm. && LAT...LON 4199 10376 4208 10378 4217 10352 4199 10349 TIME...MOT...LOC 2210Z 259DEG 9KT 4205 10366 $$ Natoli | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||