Winter Storm Warning

NWS Great Falls MT · US

Updated

This event was updated at 2026-10-12 09:55:00 UTC.

Details

Winter Storm Warning Remains In Effect Until 6 AM MDT Monday

Event: Winter Storm Warning
Issued: 2026-10-12 05:30:00 UTC
Onset: 2026-10-12 05:30:00 UTC
Message expires: 2026-10-12 12:00:00 UTC
Expected end: 2026-10-12 12:00:00 UTC
Category: Meteorological
Urgency: Expected
Severity: Severe
Certainty: Likely
Response: Prepare

Description

What

Heavy snow. Additional snow accumulations up to 3 inches.

Where

Elkhorn and Boulder Mountains, Little Belt and Highwood Mountains, and Snowy and Judith Mountains.

When

Until 6 AM MDT Monday.

Impacts

Travel could be very difficult. The wet and heavy nature of the snow could bring down tree branches. Isolated power outages are possible.

Instructions

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.

Affected areas

Little Belt and Highwood Mountains
Snowy and Judith Mountains
Elkhorn and Boulder Mountains

Public contact

Issuer: NWS Great Falls MT
Website: http://www.weather.gov

Message record

Received: 2026-10-12 05:30:45 UTC
Issue to receipt: ~46s
CAP status: Actual
CAP message type: Update
Lifecycle: Updated
Source: NWWS-OI
Feed: NWWS
Recovered: No

CAP routing and identity

ULID: 01M4Q9F2JE1QEQGC61GD5XQZSC
Identifier: urn:oid:2.49.0.1.840.0.c6bb822649d9a5d29d7e123d0a52302a0a26b5d3.003.1
Sender: [email protected]
Scope: Public
CAP source: 211803 v2.3.0
Handling codes: IPAWSv1.0
Issuing office: NWS Great Falls MT
AWIPS ID: CAPTFX
NWWS sequence: nwws_processor.7801
WMO heading: XOUS55
WMO data type: CAP alert message XML (XO)
WMO geography: United States (US)
WMO bulletin number: 55

References

Identifier: urn:oid:2.49.0.1.840.0.a4d4a9222f663d05f8aa360416294ff95b266b53.006.1
Sender: [email protected]
Sent: 2026-10-11 16:29:00 UTC

Identifier: urn:oid:2.49.0.1.840.0.02af72eff6eb04202cb1e430105d169874b37a5f.004.1
Sender: [email protected]
Sent: 2026-10-11 04:40:00 UTC

Identifier: urn:oid:2.49.0.1.840.0.e3247f4b382a0c83c88dbd6ac1ed768dc1c2f4fa.002.1
Sender: [email protected]
Sent: 2026-10-10 22:13:00 UTC

Identifier: urn:oid:2.49.0.1.840.0.788ba8280995d2bd49591e4662266b21df9055f3.004.1
Sender: [email protected]
Sent: 2026-10-10 16:56:00 UTC

Identifier: urn:oid:2.49.0.1.840.0.5c27555301c61c960e80ee52001e9dfdf3528c34.003.1
Sender: [email protected]
Sent: 2026-10-10 06:32:00 UTC

Identifier: urn:oid:2.49.0.1.840.0.63d055c6b8522eab4f914c4a776454fb26ce1d04.006.1
Sender: [email protected]
Sent: 2026-10-09 17:29:00 UTC

Identifier: urn:oid:2.49.0.1.840.0.63d055c6b8522eab4f914c4a776454fb26ce1d04.003.2
Sender: [email protected]
Sent: 2026-10-09 17:29:00 UTC

Event codes

Name	Value
SAME	WSW
NationalWeatherService	WSW

Parameters

Name	Value
AWIPSidentifier	WSWTFX
WMOidentifier	WWUS45 KTFX 120530
NWSheadline	WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 AM MDT MONDAY
BLOCKCHANNEL	EAS
BLOCKCHANNEL	NWEM
EAS-ORG	WXR
VTEC	/O.CON.KTFX.WS.W.0008.000000T0000Z-261012T1200Z/
eventEndingTime	2026-10-12T06:00:00-06:00
BLOCKCHANNEL	CMAS
expiredReferences	[email protected],urn:oid:2.49.0.1.840.0.02af72eff6eb04202cb1e430105d169874b37a5f.004.1,2026-10-10T22:40:00-06:00 [email protected],urn:oid:2.49.0.1.840.0.e3247f4b382a0c83c88dbd6ac1ed768dc1c2f4fa.002.1,2026-10-10T16:13:00-06:00 [email protected],urn:oid:2.49.0.1.840.0.788ba8280995d2bd49591e4662266b21df9055f3.004.1,2026-10-10T10:56:00-06:00 [email protected],urn:oid:2.49.0.1.840.0.5c27555301c61c960e80ee52001e9dfdf3528c34.003.1,2026-10-10T00:32:00-06:00 [email protected],urn:oid:2.49.0.1.840.0.63d055c6b8522eab4f914c4a776454fb26ce1d04.006.1,2026-10-09T11:29:00-06:00 [email protected],urn:oid:2.49.0.1.840.0.63d055c6b8522eab4f914c4a776454fb26ce1d04.003.2,2026-10-09T11:29:00-06:00

Locations

Location data

Little Belt and Highwood Mountains
Snowy and Judith Mountains
Elkhorn and Boulder Mountains

Name	Value
SAME	030013
SAME	030059
SAME	030045
SAME	030015
SAME	030027
SAME	030043
SAME	030007
UGC	MTZ317
UGC	MTZ318
UGC	MTZ322