The National Weather Service on Sunday warned that a major winter storm will affect most of Wyoming Sunday night into Monday night. Winter storm warnings have been issued for much of central Wyoming, including Johnson County.
Snowfall over Johnson County is expected to be heaviest Sunday night through Monday afternoon. The NWS is forecasting 12 to 18 inches of snowfall west of I-90 in Johnson County.
Travel conditions are expected to become hazardous, with both I-90 and I-25 expected to be severely affected. On Sunday, NWS said that it is likely that weather will force roadways to close.
"Road closures could be 24-hours plus based on the forecasted intensity of the snow storm, especially in southeast Fremont, Johnson, Natrona and Sweetwater counties," the NWS release said.