Jackson, Wyoming – Heavy snow and strong winds are creating dangerous travel conditions across northwest Wyoming this morning, with mountain roads already seeing rapid accumulation and visibility dropping sharply in exposed terrain.
According to the National Weather Service in Riverton, Winter Weather Advisories remain in effect until 5 p.m. Monday for Yellowstone National Park, the Teton and Gros Ventre Mountains, and the Absaroka Mountains. Snowfall rates are peaking through 11 a.m., reaching up to 1 inch per hour in higher elevations, while wind gusts range from 20 to 35 mph, with exposed ridges in the Tetons seeing gusts up to 50 mph.
Yellowstone National Park is expected to receive 6 to 11 inches of snow south and east of the Lower Loop, with isolated totals near 16 inches at higher elevations. The Upper Loop and northern Lower Loop could see 3 to 7 inches, while Mammoth is likely to pick up 1 to 3 inches. In the Tetons and Gros Ventre Mountains, 5 to 12 inches are expected, including along Teton Pass and Togwotee Pass, with locally higher amounts approaching 18 inches.
Travel across mountain passes and park roads may be very difficult through the day. Wyoming DOT urges drivers to check conditions before traveling and avoid unnecessary trips during periods of heavy snowfall.
Snow tapers late this afternoon, but hazardous conditions may linger into the evening as winds continue to blow snow across roadways. Additional advisories remain possible if snowfall rates persist longer than expected.
