Wasatch Mountains I-80 North
Special Weather Statement until SUN 8:45 PM MDT
Issued September, 21 2025 at 8:10 PM - US/Mountain expires September, 21 2025 at 8:45 PM - US/Mountain
...Strong thunderstorms will impact portions of northwestern Wasatch,
east central Salt Lake, south central Morgan, southwestern Summit and
northern Utah Counties through 845 PM MDT
...
At 810 PM MDT, Doppler radar was tracking strong thunderstorms along
a line extending from near Canyon Rim to Cottonwood Heights. Movement
was east at 20 mph.
HAZARD...Half inch hail.
SOURCE...Radar indicated.
IMPACT...Minor damage to outdoor objects is possible.
Locations impacted include...
Sandy, Park City, Cottonwood Heights, Midvale, Holladay, Summit Park,
Emigration Canyon, Little Cottonwood Canyon, Mount Olympus, South
Snyderville Basin, Little Cottonwood Creek Valley, Granite, North
Snyderville Basin, Mill Creek Canyon, East Millcreek, Big Cottonwood
Canyon, Cottonwood West, Canyon Rim, Alta, and Brighton.
This includes the following highways...
Interstate 80 in Utah between mile markers 128 and 154.
US Route 40 between mile markers 0 and 6.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
Torrential rainfall is also occurring with these storms and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.
&&
MAX HAIL SIZE...0.50 IN;
MAX WIND GUST...<40 MPH
