WWUS85 KRIW 240017
SPSRIW

Special Weather Statement
National Weather Service Riverton WY
617 PM MDT Sun Aug 23 2026
 
WYZ001-240045-
Yellowstone National Park-
617 PM MDT Sun Aug 23 2026

...A STRONG THUNDERSTORM WILL IMPACT NORTHWESTERN PARK COUNTY THROUGH
645 PM MDT...

At 617 PM MDT, Doppler radar was tracking a strong thunderstorm near
Blacktail Pond, which is 8 miles southeast of Mammoth, moving east at
35 mph.

HAZARD...Wind gusts up to 50 mph and half inch hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around 
         unsecured objects. Minor hail damage to vegetation is 
         possible.

This strong thunderstorm will be near...
  Floating Island Lake around 620 PM MDT.
  Tower Junction around 625 PM MDT.
  Tower Falls around 630 PM MDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building. 

Torrential rainfall is also occurring with this storm and may lead to
localized flooding. Do not drive your vehicle through flooded
roadways.

Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

Persons in campgrounds should consider seeking sturdy shelter until
this storm passes.

&&

LAT...LON 4500 11077 4499 11070 4500 11017 4475 11014
      4474 11091 4500 11092
TIME...MOT...LOC 0017Z 252DEG 28KT 4490 11057 

MAX HAIL SIZE...0.50 IN
MAX WIND GUST...50 MPH

$$

Dziewaltowski