Headline:
Winter Weather Advisory issued March 11 at 12:31PM MDT until March 11 at 6:00PM MDT by NWS Great Falls MT
Event:
Winter Weather Advisory
Urgency:
Expected
Effective:
March 11, 2026 - 11:31am
Expires:
March 12, 2026 - 5:15am
Description:
* WHAT...Snow through this afternoon with additional accumulations
up to two inches. For the Blizzard Warning, blizzard conditions
expected to develop tonight as snowfall rates and wind speeds
increase with poorest visibility in periods of moderate to heavy
snowfall and strong winds Thursday morning. Wind speeds decrease
late Thursday through Friday but periods of light to moderate
snowfall will persist through Saturday. Total snow accumulations
between 1 and 3 feet are expected by Saturday. Winds gust as high
as 70 mph late tonight through Thursday morning.
* WHERE...The Continental Divide along the Rocky Mountain Front.
* WHEN...For the Winter Weather Advisory, until 6 PM MDT this
evening. For the Blizzard Warning, from 6 PM this evening to 3 PM
MDT Thursday. For the Winter Storm Warning, from 3 PM Thursday to
6 PM MDT Saturday.
* IMPACTS...Travel could be very difficult or impossible over Marias
pass and Rogers pass late tonight through Thursday morning.
* ADDITIONAL DETAILS...Whiteout conditions are likely and may make
travel treacherous and potentially life-threatening, especially
from 12 AM Thursday through 8 AM Thursday.
Instruction:
Remember, a Blizzard Warning means that there is at least an 80%
chance of seeing blizzard conditions for at least 3 hours during the
watch period.
If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. The latest road conditions can
be obtained by calling 5 1 1 or visiting the MDT Road Report website.
Area Description:
East Glacier Park Region; Southern Rocky Mountain Front
Forcast Office:
NWS Great Falls MT