IEM VTEC Product Browser
This application allows easy navigation of National Weather Service issued products with Valid Time Event Coding (VTEC).
13 Nov 2024 Update: The tool was updated to use non-hash link style URLs. A shim is in place to translate the old URLs to the new ones, so nothing should be broken (famous last words). This was done to allow the HTML5 History API to provide a better user experience.
Tab Functionality:
Above this section, you will notice six selectable tabs. Click on
the tab to show the information.
- Help: This page!
- Event Info: Details of the selected event.
- Text Data: The raw text product for this event.
- Interactive Map: An interactive map showing the event and RADAR.
- Storm Reports: Local Storm Reports.
- List Events: List all events of the given phenomena, significance, year, and issuing office.
Web Services Used:
This application is fully driven by IEM web services.
2025 [KTFX] GREAT_FALLS Winter Storm (WS) Watch (A) Number 11
Listing of Counties/Parishes/Zones Included in Product
RADAR Composite at Issuance Time
Storm Based Warning History
438 WWUS45 KTFX 301915 WSWTFX URGENT - WINTER WEATHER MESSAGE National Weather Service Great Falls MT 115 PM MDT Sun Mar 30 2025 MTZ317-320-330-311100- /O.NEW.KTFX.WS.A.0011.250401T0000Z-250402T0600Z/ Little Belt and Highwood Mountains-Big Belt, Bridger and Castle Mountains-Gallatin and Madison County Mountains and Centennial Mountains- Including the following locations: Targhee Pass, West Yellowstone, Big Sky, Deep Creek Pass, Monarch, Trident, Kings Hill Pass, Neihart, Maudlow, Bozeman Pass, Battle Ridge Pass, and Raynolds Pass 115 PM MDT Sun Mar 30 2025 ...WINTER STORM WATCH IN EFFECT FROM MONDAY EVENING THROUGH TUESDAY EVENING... * WHAT...Heavy snow possible. Total snow accumulations between 6 and 12 inches possible. * WHERE...Big Belt, Bridger and Castle Mountains, Little Belt and Highwood Mountains, and Gallatin and Madison County Mountains and Centennial Mountains. * WHEN...From Monday evening through Tuesday evening. * IMPACTS...Travel could be difficult. * ADDITIONAL DETAILS...The heaviest snowfall is most likely to occur near and above mountain pass levels with this system. PRECAUTIONARY/PREPAREDNESS ACTIONS... Remember, a Winter Storm Watch means that there is at least a 50% chance of impactful winter weather conditions during the watch period. && $$ Brusda
107 WWUS45 KTFX 310855 WSWTFX URGENT - WINTER WEATHER MESSAGE National Weather Service Great Falls MT 255 AM MDT Mon Mar 31 2025 MTZ317-320-330-010000- /O.UPG.KTFX.WS.A.0011.250401T0000Z-250402T0600Z/ /O.NEW.KTFX.WS.W.0009.250401T0000Z-250402T0600Z/ Little Belt and Highwood Mountains-Big Belt, Bridger and Castle Mountains-Gallatin and Madison County Mountains and Centennial Mountains- Including the following locations: Trident, Battle Ridge Pass, Maudlow, Neihart, Kings Hill Pass, Big Sky, Deep Creek Pass, West Yellowstone, Raynolds Pass, Monarch, Bozeman Pass, and Targhee Pass 255 AM MDT Mon Mar 31 2025 ...WINTER STORM WARNING IN EFFECT FROM 6 PM THIS EVENING TO MIDNIGHT MDT TUESDAY NIGHT... * WHAT...Heavy snow possible. Total snow accumulations between 6 and 12 inches possible. * WHERE...Big Belt, Bridger and Castle Mountains, Little Belt and Highwood Mountains, and Gallatin and Madison County Mountains and Centennial Mountains. * WHEN...From 6 PM this evening to midnight MDT Tuesday Night. * IMPACTS...Travel could be difficult. * ADDITIONAL DETAILS...The heaviest snowfall is most likely to occur in the higher terrain, including some of the mountain passes. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions can be obtained by calling 5 1 1 or visiting the MDT Road Report website. Remember, a Winter Storm Warning means that there is at least an 80% chance of impactful winter weather conditions during the warning period. && $$ MTZ322-010000- /O.NEW.KTFX.WS.W.0009.250401T0000Z-250402T0600Z/ Elkhorn and Boulder Mountains- Including the following locations: Boulder, Elk Park Pass, Corbin, Wickes, Clancy, Montana City, and Homestake Pass 255 AM MDT Mon Mar 31 2025 ...WINTER STORM WARNING IN EFFECT FROM 6 PM THIS EVENING TO MIDNIGHT MDT TUESDAY NIGHT... * WHAT...Heavy snow possible. Total snow accumulations between 6 and 12 inches possible. Winds gusting as high as 35 mph. * WHERE...Elkhorn and Boulder Mountains. * WHEN...From 6 PM this evening to midnight MDT Tuesday Night. * IMPACTS...Travel could be very difficult. PRECAUTIONARY/PREPAREDNESS ACTIONS... 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. To see a graphical representation of the degree of stress on young livestock please visit our webpage and select Local Programs then Cold Air Advisory for Newborn Livestock. && $$ MTZ307-312>316-318-321-326-010000- /O.NEW.KTFX.WW.Y.0030.250401T0000Z-250402T0600Z/ Southern Rocky Mountain Front-Cascade County below 5000ft-Judith Basin County and Judith Gap-Fergus County below 4500ft-Upper Blackfoot and MacDonald Pass-Gates of the Mountains-Snowy and Judith Mountains-Meagher County Valleys-Gallatin Valley- Including the following locations: Rogers Pass, Craig, Ringling, Great Falls, Bozeman, Martinsdale, Raynesford, Checkerboard, Marysville, Lincoln, Hilger, Wolf Creek, Moccasin, Windham, Gallatin Gateway, Flesher Pass, Hobson, Geyser, MacDonald Pass, White Sulphur Springs, Benchland, Lewistown, Stanford, and Canyon Creek 255 AM MDT Mon Mar 31 2025 ...WINTER WEATHER ADVISORY IN EFFECT FROM 6 PM THIS EVENING TO MIDNIGHT MDT TUESDAY NIGHT... * WHAT...Snow expected. Total snow accumulations between 1 and 4 inches, with isolated higher amounts possible. * WHERE...Portions of central, north central, and southwest Montana. * WHEN...From 6 PM this evening to midnight MDT Tuesday Night. * IMPACTS...Travel could be very difficult. The hazardous conditions could impact the Monday evening and Tuesday morning commutes. * ADDITIONAL DETAILS...An area of heavy snow is possible with this system, particularly north of the Little Belt and Snowy Mountains including Lewistown and Great Falls. Should this materialize, snow amounts could exceed 6 inches. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions can be obtained by calling 5 1 1 or visiting the MDT Road Report website. To see a graphical representation of the degree of stress on young livestock please visit our webpage and select Local Programs then Cold Air Advisory for Newborn Livestock. && $$ Ludwig
Permalink to 202503301915-KTFX-WWUS45-WSWTFX
438 WWUS45 KTFX 301915 WSWTFX URGENT - WINTER WEATHER MESSAGE National Weather Service Great Falls MT 115 PM MDT Sun Mar 30 2025 MTZ317-320-330-311100- /O.NEW.KTFX.WS.A.0011.250401T0000Z-250402T0600Z/ Little Belt and Highwood Mountains-Big Belt, Bridger and Castle Mountains-Gallatin and Madison County Mountains and Centennial Mountains- Including the following locations: Targhee Pass, West Yellowstone, Big Sky, Deep Creek Pass, Monarch, Trident, Kings Hill Pass, Neihart, Maudlow, Bozeman Pass, Battle Ridge Pass, and Raynolds Pass 115 PM MDT Sun Mar 30 2025 ...WINTER STORM WATCH IN EFFECT FROM MONDAY EVENING THROUGH TUESDAY EVENING... * WHAT...Heavy snow possible. Total snow accumulations between 6 and 12 inches possible. * WHERE...Big Belt, Bridger and Castle Mountains, Little Belt and Highwood Mountains, and Gallatin and Madison County Mountains and Centennial Mountains. * WHEN...From Monday evening through Tuesday evening. * IMPACTS...Travel could be difficult. * ADDITIONAL DETAILS...The heaviest snowfall is most likely to occur near and above mountain pass levels with this system. PRECAUTIONARY/PREPAREDNESS ACTIONS... Remember, a Winter Storm Watch means that there is at least a 50% chance of impactful winter weather conditions during the watch period. && $$ Brusda
Permalink to 202503310855-KTFX-WWUS45-WSWTFX
107 WWUS45 KTFX 310855 WSWTFX URGENT - WINTER WEATHER MESSAGE National Weather Service Great Falls MT 255 AM MDT Mon Mar 31 2025 MTZ317-320-330-010000- /O.UPG.KTFX.WS.A.0011.250401T0000Z-250402T0600Z/ /O.NEW.KTFX.WS.W.0009.250401T0000Z-250402T0600Z/ Little Belt and Highwood Mountains-Big Belt, Bridger and Castle Mountains-Gallatin and Madison County Mountains and Centennial Mountains- Including the following locations: Trident, Battle Ridge Pass, Maudlow, Neihart, Kings Hill Pass, Big Sky, Deep Creek Pass, West Yellowstone, Raynolds Pass, Monarch, Bozeman Pass, and Targhee Pass 255 AM MDT Mon Mar 31 2025 ...WINTER STORM WARNING IN EFFECT FROM 6 PM THIS EVENING TO MIDNIGHT MDT TUESDAY NIGHT... * WHAT...Heavy snow possible. Total snow accumulations between 6 and 12 inches possible. * WHERE...Big Belt, Bridger and Castle Mountains, Little Belt and Highwood Mountains, and Gallatin and Madison County Mountains and Centennial Mountains. * WHEN...From 6 PM this evening to midnight MDT Tuesday Night. * IMPACTS...Travel could be difficult. * ADDITIONAL DETAILS...The heaviest snowfall is most likely to occur in the higher terrain, including some of the mountain passes. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions can be obtained by calling 5 1 1 or visiting the MDT Road Report website. Remember, a Winter Storm Warning means that there is at least an 80% chance of impactful winter weather conditions during the warning period. && $$ MTZ322-010000- /O.NEW.KTFX.WS.W.0009.250401T0000Z-250402T0600Z/ Elkhorn and Boulder Mountains- Including the following locations: Boulder, Elk Park Pass, Corbin, Wickes, Clancy, Montana City, and Homestake Pass 255 AM MDT Mon Mar 31 2025 ...WINTER STORM WARNING IN EFFECT FROM 6 PM THIS EVENING TO MIDNIGHT MDT TUESDAY NIGHT... * WHAT...Heavy snow possible. Total snow accumulations between 6 and 12 inches possible. Winds gusting as high as 35 mph. * WHERE...Elkhorn and Boulder Mountains. * WHEN...From 6 PM this evening to midnight MDT Tuesday Night. * IMPACTS...Travel could be very difficult. PRECAUTIONARY/PREPAREDNESS ACTIONS... 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. To see a graphical representation of the degree of stress on young livestock please visit our webpage and select Local Programs then Cold Air Advisory for Newborn Livestock. && $$ MTZ307-312>316-318-321-326-010000- /O.NEW.KTFX.WW.Y.0030.250401T0000Z-250402T0600Z/ Southern Rocky Mountain Front-Cascade County below 5000ft-Judith Basin County and Judith Gap-Fergus County below 4500ft-Upper Blackfoot and MacDonald Pass-Gates of the Mountains-Snowy and Judith Mountains-Meagher County Valleys-Gallatin Valley- Including the following locations: Rogers Pass, Craig, Ringling, Great Falls, Bozeman, Martinsdale, Raynesford, Checkerboard, Marysville, Lincoln, Hilger, Wolf Creek, Moccasin, Windham, Gallatin Gateway, Flesher Pass, Hobson, Geyser, MacDonald Pass, White Sulphur Springs, Benchland, Lewistown, Stanford, and Canyon Creek 255 AM MDT Mon Mar 31 2025 ...WINTER WEATHER ADVISORY IN EFFECT FROM 6 PM THIS EVENING TO MIDNIGHT MDT TUESDAY NIGHT... * WHAT...Snow expected. Total snow accumulations between 1 and 4 inches, with isolated higher amounts possible. * WHERE...Portions of central, north central, and southwest Montana. * WHEN...From 6 PM this evening to midnight MDT Tuesday Night. * IMPACTS...Travel could be very difficult. The hazardous conditions could impact the Monday evening and Tuesday morning commutes. * ADDITIONAL DETAILS...An area of heavy snow is possible with this system, particularly north of the Little Belt and Snowy Mountains including Lewistown and Great Falls. Should this materialize, snow amounts could exceed 6 inches. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions can be obtained by calling 5 1 1 or visiting the MDT Road Report website. To see a graphical representation of the degree of stress on young livestock please visit our webpage and select Local Programs then Cold Air Advisory for Newborn Livestock. && $$ Ludwig
All Storm Reports within Event Political Coverage
Storm Reports within Product Polygon
This table lists other events issued by the selected office for the selected year. Click on the row to select that event.