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Severe Thunderstorm Warning 0104
Issued by the Riverton Forecast Office

Action Issued Starts Expiration
New 2025-09-10 23:14:12 2025-09-10 23:14:00 2025-09-10 23:45:00
Continued 2025-09-10 23:23:13 2025-09-10 23:45:00
Continued 2025-09-10 23:31:43 2025-09-10 23:45:00
Expired 2025-09-10 23:36:43 2025-09-10 23:45:00

Action: New
Issued At: 2025-09-10 23:14:12 

213 
WUUS55 KRIW 110414
SVRRIW
WYC013-110445-
/O.NEW.KRIW.SV.W.0104.250911T0414Z-250911T0445Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Riverton WY
1014 PM MDT Wed Sep 10 2025

The National Weather Service in Riverton has issued a

* Severe Thunderstorm Warning for...
  Central Fremont County in central Wyoming...

* Until 1045 PM MDT.

* At 1012 PM MDT, a severe thunderstorm was located near Lander,
  moving northeast at 40 mph.

  HAZARD...Gusts up to 70 mph.

  SOURCE...Radar indicated.

  IMPACT...Expect considerable tree damage. Damage is likely to 
           mobile homes, roofs, and outbuildings.

* This severe thunderstorm will be near...
  Hudson around 1020 PM MDT.
  Arapahoe around 1025 PM MDT.
  Southwestern Riverton around 1030 PM MDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4273 10866 4285 10883 4311 10856 4293 10827
TIME...MOT...LOC 0412Z 222DEG 36KT 4286 10867 

THUNDERSTORM DAMAGE THREAT...CONSIDERABLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...OBSERVED
MAX WIND GUST...70 MPH

$$

Dziewaltowski
Action: Continued
Issued At: 2025-09-10 23:23:13 

272 
WWUS55 KRIW 110422
SVSRIW

Severe Weather Statement
National Weather Service Riverton WY
1022 PM MDT Wed Sep 10 2025

WYC013-110445-
/O.CON.KRIW.SV.W.0104.000000T0000Z-250911T0445Z/
Fremont-
1022 PM MDT Wed Sep 10 2025

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1045 PM MDT
FOR CENTRAL FREMONT COUNTY...

At 1020 PM MDT, a severe thunderstorm was located over Hudson, which
is 9 miles northeast of Lander, moving northeast at 40 mph.

HAZARD...70 mph wind gusts. A gust of 78 mph was reported at Moss 
         Rock Rd, south of Lander near Hwy 131. 

SOURCE...Radar indicated.

IMPACT...Expect considerable tree damage. Damage is likely to mobile 
         homes, roofs, and outbuildings.

This severe storm will be near...
  Arapahoe around 1025 PM MDT.
  Southwestern Riverton around 1030 PM MDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4273 10866 4285 10883 4311 10856 4293 10827
TIME...MOT...LOC 0420Z 222DEG 36KT 4292 10860 

THUNDERSTORM DAMAGE THREAT...CONSIDERABLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...OBSERVED
MAX WIND GUST...70 MPH

$$

TL
Action: Continued
Issued At: 2025-09-10 23:31:43 

498 
WWUS55 KRIW 110431
SVSRIW

Severe Weather Statement
National Weather Service Riverton WY
1031 PM MDT Wed Sep 10 2025

WYC013-110445-
/O.CON.KRIW.SV.W.0104.000000T0000Z-250911T0445Z/
Fremont-
1031 PM MDT Wed Sep 10 2025

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1045 PM MDT
FOR SOUTHEASTERN FREMONT COUNTY...

At 1030 PM MDT, a severe thunderstorm was located over Arapahoe,
which is near Riverton, moving northeast at 40 mph.

HAZARD...70 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...Expect considerable tree damage. Damage is likely to mobile 
         homes, roofs, and outbuildings.

This severe storm will be near...
  Southwestern Riverton around 1035 PM MDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4279 10855 4292 10876 4311 10856 4293 10827
TIME...MOT...LOC 0430Z 222DEG 36KT 4300 10850 

THUNDERSTORM DAMAGE THREAT...CONSIDERABLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...OBSERVED
MAX WIND GUST...70 MPH

$$

Dziewaltowski
Action: Expired
Issued At: 2025-09-10 23:36:43 

548 
WWUS55 KRIW 110436
SVSRIW

Severe Weather Statement
National Weather Service Riverton WY
1036 PM MDT Wed Sep 10 2025

WYC013-110446-
/O.EXP.KRIW.SV.W.0104.000000T0000Z-250911T0445Z/
Fremont-
1036 PM MDT Wed Sep 10 2025

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN FREMONT COUNTY
WILL EXPIRE AT 1045 PM MDT...

The storm which prompted the warning has weakened below severe
limits, and has exited the warned area. Therefore, the warning will
be allowed to expire.

&&

LAT...LON 4279 10855 4292 10876 4311 10856 4293 10827
TIME...MOT...LOC 0436Z 222DEG 36KT 4303 10847 

$$

Dziewaltowski

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