Winter Weather Advisory issued October 9 at 11:29AM MDT until October 12 at 6:00AM MDT by NWS Great Falls MT

Official severe-weather alerts, warning areas, and disaster updates.

stale · active · official-source

* WHAT...Snow expected. Total snow accumulations of between 2 to 5 inches across lower elevations, with 5 to 8 inches in the mountains. Winds gusting as high as 40 mph. * WHERE...Portions of central and southwest Montana. * WHEN...From 6 PM Saturday to 6 AM MDT Monday. * IMPACTS...Travel could be 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. Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1.

Event time

Oct 9, 2026, 5:29 PM UTC

Source last updated

Oct 9, 2026, 5:29 PM UTC

Retrieved by TradePilot

Oct 10, 2026, 1:06 AM UTC

Provider

NWS — active weather alerts (Storm)

Location

MT, US

Severity

Moderate

area

Canyon Ferry Area; Missouri Headwaters; Madison River Valley; Gallatin Valley; Northwest Beaverhead County; Beaverhead and Western Madison below 6000ft; Ruby Mountains and Southern Beaverhead Mountains

event

Winter Weather Advisory

onset

2026-10-10T18:00:00-06:00

states

["MT"]

urgency

Expected

certainty

Likely

effective

2026-10-09T11:29:00-06:00

message id

urn:oid:2.49.0.1.840.0.63d055c6b8522eab4f914c4a776454fb26ce1d04.010.1

references

[]

instruction

Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1.

message type

Alert

freshness minutes

60

Source use policy · US government work (17 U.S.C. 105)

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