ST. LOUIS — A Winter Storm Watch has been expanded northward across central Missouri as forecasters warn that a developing winter system could bring significant snowfall beginning late Friday night and continuing through the weekend.
The National Weather Service in St. Louis said the watch is in effect from 12 a.m. Saturday until 6 a.m. Sunday, with snow expected to overspread the region from southwest to northeast. The most impactful period is forecast to occur overnight Friday into Saturday morning, when snowfall rates may increase rapidly and lead to hazardous travel conditions.
Forecasters said snow accumulations of 5 inches or more are possible in parts of the watch area, particularly across southern and central portions of Missouri. Lesser amounts are more likely farther north, though officials cautioned that uncertainty remains regarding both the exact track of the storm and final snowfall totals.
“The chance for 5 inches or more of snow has increased along and south of Interstate 70,” the weather service said, noting that forecast confidence will continue to evolve as the storm approaches.
Snow is expected to continue at times through Saturday, with lingering impacts possible into early Sunday morning. The overnight timing raises concerns for travelers, especially during the early hours of Saturday when roads could quickly become snow-covered and slick.
Emergency officials are urging residents to complete preparations before midnight Friday, monitor updated forecasts, and be prepared for changing conditions. Power outages are not currently expected to be widespread, but heavy snowfall combined with cold temperatures could strain travel and response efforts.
Drivers are advised to slow down, allow extra travel time, and avoid unnecessary trips during periods of heavier snow. Residents should also keep emergency supplies on hand in case conditions deteriorate.
Additional watches or warnings may be issued as confidence in the forecast increases.
