421 
WUUS55 KRIW 122258
SVRRIW
WYC019-122345-
/O.NEW.KRIW.SV.W.0107.250912T2258Z-250912T2345Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Riverton WY
458 PM MDT Fri Sep 12 2025

The National Weather Service in Riverton has issued a

* Severe Thunderstorm Warning for...
  Northeastern Johnson County in north central Wyoming...

* Until 545 PM MDT.

* At 458 PM MDT, a severe thunderstorm was located 12 miles southeast
  of Buffalo, moving northeast at 20 mph.

  HAZARD...Quarter size hail.

  SOURCE...Trained weather spotters. At At 4:55 PM quarter size hail 
           was reported 13 miles SSE of Buffalo.

  IMPACT...Damage to vehicles is expected.

* This severe thunderstorm will remain over mainly rural areas of
  northeastern Johnson County.

This includes Interstate 90 between mile markers 67 and 89.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4413 10656 4421 10667 4438 10637 4420 10613
TIME...MOT...LOC 2258Z 247DEG 19KT 4421 10654 

HAIL THREAT...OBSERVED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...<50 MPH

$$

Rowe

625 
WWUS55 KRIW 122309
SVSRIW

Severe Weather Statement
National Weather Service Riverton WY
509 PM MDT Fri Sep 12 2025

WYC019-122319-
/O.CAN.KRIW.SV.W.0107.000000T0000Z-250912T2345Z/
Johnson-
509 PM MDT Fri Sep 12 2025

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN JOHNSON COUNTY 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. However, small hail and 
heavy rain are still possible with this thunderstorm.

&&

LAT...LON 4413 10656 4421 10667 4438 10637 4420 10613
TIME...MOT...LOC 2309Z 247DEG 19KT 4423 10646 

$$

Rowe