(Fremont County, WY) – County 10 meteorologist Dave Lipson has shared that today, April 16, a deepening trough of low pressure will advance to Idaho and western Montana, and a warm, unstable, increasingly moist southwest flow out ahead of the trough will increase our chances of getting scattered showers, as well as a potential thunderstorm.
It will also be very windy, with southwest winds of 20 to 30 mph and gusts of 40 mph, and any thunderstorm that does form will likely produce 45 to 50 mph wind gusts, along with small hail, Lipson added.
Togwotee Pass will likely receive around an inch of snow by day’s end, along with some snow pellets from any thunderstorms. The high will be around 60 degrees in the Wind River Basin.
Tonight, as the deepening trough of low pressure tracks across the area, scattered showers will become more widespread and will turn to snow, heavy at times. It will be blustery, with north-northwest winds of 20 to 30 mph, diminishing after midnight. Lows will be in the mid-20s.
For tomorrow, Friday, expect occasional snowfall to taper off to snow showers by afternoon. Under mostly cloudy skies, it will be colder with highs around 40 degrees, as colder air wraps around the backside of the exiting low-pressure center. By mid-day Friday, expect up to 1 to 3 inches of snow in both Lander and Riverton, 5 to 7 inches on South Pass, 3 to 5 inches in Moneta, 10 to 18 inches on Togwotee Pass, and 2 to 4 inches on Beaver Rim. Lipson says that any snow that does accumulate in the Wind River Basin and in the Lander foothills will melt fairly quickly during the afternoon.