WWUS85 KRIW 240321
SPSRIW

Special Weather Statement
National Weather Service Riverton WY
921 PM MDT Sun Aug 23 2026
 
WYZ008>010-240345-
Bighorn Mountains Southeast-Northeast Johnson County-Bighorn
Mountains West-
921 PM MDT Sun Aug 23 2026

...STRONG THUNDERSTORMS WILL IMPACT NORTHERN JOHNSON AND EAST CENTRAL
BIG HORN COUNTIES THROUGH 945 PM MDT...

At 920 PM MDT, Doppler radar was tracking an outflow boundary along 
a line extending from 15 miles northeast of Lake De Smet to near 
Granite Pass. Movement was southeast at 15 mph.

HAZARD...Wind gusts up to 50 mph.

SOURCE...Radar indicated.

IMPACT...Gusty winds could blow around unsecured objects.

Strong thunderstorms will be near...
  Fort Phil Kearny Historical Site around 935 PM MDT.

This includes the following highways...
 Interstate 25 between mile markers 298 and 299.
 Interstate 90 between mile markers 42 and 61.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building. 

&&

LAT...LON 4430 10710 4461 10753 4461 10743 4459 10739
      4456 10737 4456 10637 4435 10619
TIME...MOT...LOC 0320Z 333DEG 13KT 4465 10656 4459 10741 

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...50 MPH

$$

TL