Headline:
Winter Storm Warning issued October 11 at 10:29AM MDT until October 12 at 6:00AM MDT by NWS Great Falls MT
Event:
Winter Storm Warning
Urgency:
Expected
Effective:
October 11, 2026 - 9:29am
Expires:
October 12, 2026 - 12:30am
Description:
* WHAT...Heavy, wet snow. Additional snow accumulations between 3 and
7 inches. Winds gusting as high as 40 mph.
* WHERE...Helena Valley, Madison River Valley, and Missouri
Headwaters.
* WHEN...Until 6 AM MDT Monday.
* IMPACTS...Travel could be very difficult. Gusty winds combined with
the wet and heavy nature of the snow could bring down tree
branches. Isolated power outages are possible.
* ADDITIONAL DETAILS...Snowfall amounts will vary drastically from
grassy surfaces to roadways, most notably at lower elevations, with
accumulations on non-grassy surfaces being confined mainly to
between the evening through late morning hours.
Instruction:
If you must travel, keep an extra flashlight, food, and water in your
vehicle in case of an emergency. The latest road conditions for the
state you are calling from can be obtained by calling 5 1 1.
Area Description:
Helena Valley; Missouri Headwaters; Madison River Valley
Forcast Office:
NWS Great Falls MT
Sender:
w-nws.webmaster@noaa.gov