Billings, MT – Drivers on I-94 and regional highways in eastern Montana should prepare for rapid weather changes as severe thunderstorms packing 60 mph wind gusts and heavy rainfall move through the area from 12 p.m. until 8 p.m. Monday. These fast-moving cells possess enough energy to down power lines and create sudden whiteout conditions from localized downpours, specifically targeting the far eastern stretches of the state near the North Dakota border.
According to the National Weather Service in Billings, a level one isolated severe storm risk is in effect through this evening as a disturbance lifts through the region. Primary concerns for residents in Miles City, Baker, and Ekalaka include damaging straight-line winds and heavy rain that could lead to ponding on roadways. Forecasters also warn of secondary threats, including nickel-sized hail, which could impact outdoor equipment and early-season vegetation.
The most intense activity will be concentrated in a corridor including Forsyth, Hysham, and Broadus before storms gradually weaken and exit the state by midnight. Local officials advise residents to identify a nearby indoor shelter and have multiple ways to receive warnings, as these storms can intensify quickly. Because of the high wind threat, high-profile vehicles should exercise extreme caution on north-south routes like Highway 59.
The severe threat will diminish overnight, though scattered showers may linger in the far eastern counties. Emergency management recommends securing loose outdoor items and avoiding non-essential travel during the peak window of 12 p.m. to 8 p.m. to ensure public safety. Warnings and watches remain in effect through the evening hours for the affected counties.
