AREAS AFFECTED : FLATHEAD, MT; LINCOLN, MT; SANDERS, MT
ESFMSO
NORTHWEST MONTANA
A prolonged Atmospheric River is expected to impact Western Montana
and North-Central Idaho from Monday through Wednesday, bringing
moderate to heavy precipitation. Snow levels are anticipated to
start around 7,000 feet on Monday before falling to valley floors
behind a cold front early Wednesday. The most likely rainfall
scenario forecasts 0.75 to 1.25 inches for the valleys of Lincoln,
Mineral, Sanders and Flathead Counties in northwest Montana. 1.50
to 3 inches expected in the mountains. A high-end scenario could
bring a total of 4 inches to the Cabinet and Purcell Mountains.
Due to already saturated ground, rainfall will increase the risk of
rock and landslides across northwest Montana. Continue to monitor
the latest forecast updates as this system approaches.