270
WWUS85 KRIW 180153
SPSRIW
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE RIVERTON WY
753 PM MDT FRI JUL 17 2026
WYZ001-180230-
YELLOWSTONE NATIONAL PARK-
753 PM MDT FRI JUL 17 2026
...A STRONG THUNDERSTORM WILL IMPACT NORTHEASTERN TETON COUNTY
THROUGH 830 PM MDT...
AT 753 PM MDT, DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM NEAR
HEART LAKE, WHICH IS 11 MILES SOUTHEAST OF GRANT VILLAGE, MOVING
NORTHEAST AT 15 MPH.
HAZARD...WIND GUSTS OF 50 TO 55 MPH AND HALF INCH HAIL.
SOURCE...RADAR INDICATED.
IMPACT...GUSTY WINDS COULD BLOW AROUND UNSECURED OBJECTS. MINOR HAIL
DAMAGE TO VEGETATION IS POSSIBLE.
THIS STRONG THUNDERSTORM WILL BE NEAR...
SOUTH ARM OF LAKE YELLOWSTONE AROUND 800 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.
LAT...LON 4416 11033 4424 11055 4441 11040 4432 11017
TIME...MOT...LOC 0153Z 205DEG 11KT 4427 11040
MAX HAIL SIZE...0.50 IN
MAX WIND GUST...55 MPH
TL
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