Alert archive / Montana / Winter Storm Warnings in 2021
Winter Storm Warning 1, NWS Great Falls, MT
NWS Great Falls, MT issued this winter storm warning at Jan 18, 2021, 5:23 AM MST. It was in force for 16 hr. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Jan 18, 2021, 5:23 AM MST (12:23 UTC)
- Expired
- Jan 18, 2021, 9:00 PM MST
- In force
- 16 hr
- Issued by
- NWS Great Falls, MT
The text
As transmitted.
729 WWUS45 KTFX 181223 WSWTFX URGENT - WINTER WEATHER MESSAGE National Weather Service Great Falls MT 523 AM MST Mon Jan 18 2021 MTZ012-054-190400- /O.UPG.KTFX.WW.Y.0006.000000T0000Z-210119T0400Z/ /O.NEW.KTFX.WS.W.0001.210118T1223Z-210119T0400Z/ Cascade-Meagher- Including Kings Hill Pass, Deep Creek Pass, and White Sulphur Springs 523 AM MST Mon Jan 18 2021 ...WINTER STORM WARNING IN EFFECT UNTIL 9 PM MST THIS EVENING ABOVE 4000 FEET... * WHAT...Heavy snow occurring above 4000 feet. Additional snow accumulations of 3 to 6 inches above 4000 feet, with 6 to 10 inches above 6000 feet. Winds gusting as high as 35 mph. * WHERE...Cascade and Meagher. * WHEN...Until 9 PM MST this evening. * IMPACTS...Travel could be very difficult, especially on United States Highway 89 from Sluice Boxes State Park to White Sulphur Springs. Patchy blowing snow could significantly reduce visibility. * ADDITIONAL DETAILS...Snowfall rates in the Little Belt mountains could approach 2 to 3 inches per hour for several hours this morning. 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 for the state you are calling from can be obtained by calling 5 1 1. && Moldan $$ MTZ055-181900- /O.CON.KTFX.WW.Y.0006.000000T0000Z-210118T1900Z/ Gallatin- Including West Yellowstone, Battle Ridge Pass, Bozeman Pass, and Targhee Pass 523 AM MST Mon Jan 18 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON MST TODAY... * WHAT...Snow occurring. Additional snow accumulations of up to 3 inches at lower elevations, and 4 to 8 inches in the mountains. Winds gusting as high as 35 mph. * WHERE...Gallatin. * WHEN...Until noon MST today. * IMPACTS...Plan on slippery road conditions. Patchy blowing snow could reduce visibility. The hazardous conditions could impact the morning commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. && Moldan $$ MTZ050-051-190400- /O.CON.KTFX.WW.Y.0006.000000T0000Z-210119T0400Z/ Judith Basin-Fergus- Including Raynesford, Stanford, Hobson, Lewistown, and Lewistown Divide 523 AM MST Mon Jan 18 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 9 PM MST THIS EVENING ABOVE 4000 FEET... * WHAT...Snow occurring. Additional snow accumulations of up to 4 inches above 4000 feet, with 4 to 8 inches above 6000 feet. Isolated higher amounts are possible in the Snowy and Highwood Mountains. Winds gusting as high as 35 mph at times. * WHERE...Judith Basin and Fergus. * WHEN...Until 9 PM MST this evening. * IMPACTS...Travel could be difficult. Areas of blowing snow could significantly reduce visibility. Tree or branch damage is possible. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. && Moldan $$ http://www.weather.gov/greatfalls
2 follow-up statements
322 WWUS45 KTFX 181847 WSWTFX URGENT - WINTER WEATHER MESSAGE National Weather Service Great Falls MT 1147 AM MST Mon Jan 18 2021 MTZ055-182000- /O.EXP.KTFX.WW.Y.0006.000000T0000Z-210118T1900Z/ Gallatin- Including West Yellowstone, Battle Ridge Pass, Bozeman Pass, and Targhee Pass 1147 AM MST Mon Jan 18 2021 ...WINTER WEATHER ADVISORY WILL EXPIRE AT NOON MST TODAY... Areas of light snow will continue to diminish through the rest of this afternoon with little or no additional accumulation expected. $$ MTZ012-054-190400- /O.CON.KTFX.WS.W.0001.000000T0000Z-210119T0400Z/ Cascade-Meagher- Including Kings Hill Pass, Deep Creek Pass, and White Sulphur Springs 1147 AM MST Mon Jan 18 2021 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 9 PM MST THIS EVENING ABOVE 4000 FEET... * WHAT...Snow occurring above 4000 feet. Additional snow accumulation up to 1 inch on the plains and up to 3 inches in the mountains. * WHERE...Cascade and Meagher. * WHEN...Until 9 PM MST this evening. * IMPACTS...Travel could be difficult, especially on United States Highway 89 from Sluice Boxes State Park to White Sulphur Springs. Patchy blowing snow could significantly reduce visibility. * ADDITIONAL DETAILS...Snow will diminish to snow showers or flurries at lower elevations this afternoon with light snow continuing into this evening over the mountains. 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 for the state you are calling from can be obtained by calling 5 1 1. && $$ MTZ050-051-190400- /O.CON.KTFX.WW.Y.0006.000000T0000Z-210119T0400Z/ Judith Basin-Fergus- Including Raynesford, Stanford, Hobson, Lewistown, and Lewistown Divide 1147 AM MST Mon Jan 18 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 9 PM MST THIS EVENING ABOVE 4000 FEET... * WHAT...Areas of snow occurring. Additional snow accumulations of up to 1 inch with up to 3 inches in the mountains. Winds gusting as high as 35 mph. * WHERE...Judith Basin and Fergus. * WHEN...Until 9 PM MST this evening. * IMPACTS...Travel could be difficult. Areas of blowing snow could significantly reduce visibility. * ADDITIONAL DETAILS...Snow will diminish to snow showers or flurries at lower elevations this afternoon with light snow continuing into this evening over the mountains. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. && $$ http://www.weather.gov/greatfalls
022 WWUS45 KTFX 190336 WSWTFX URGENT - WINTER WEATHER MESSAGE National Weather Service Great Falls MT 836 PM MST Mon Jan 18 2021 MTZ012-054-190445- /O.EXP.KTFX.WS.W.0001.000000T0000Z-210119T0400Z/ Cascade-Meagher- Including Kings Hill Pass, Deep Creek Pass, and White Sulphur Springs 836 PM MST Mon Jan 18 2021 ...WINTER STORM WARNING WILL EXPIRE AT 9 PM MST THIS EVENING ABOVE 4000 FEET... Any light snow still falling will continue to diminish through the overnight hours. $$ MTZ050-051-190445- /O.EXP.KTFX.WW.Y.0006.000000T0000Z-210119T0400Z/ Judith Basin-Fergus- Including Raynesford, Stanford, Hobson, Lewistown, and Lewistown Divide 836 PM MST Mon Jan 18 2021 ...WINTER WEATHER ADVISORY WILL EXPIRE AT 9 PM MST THIS EVENING ABOVE 4000 FEET... Any light snow still falling will continue to diminish through the overnight hours. $$ http://www.weather.gov/greatfalls
The office that day
Everything else NWS Great Falls, MT issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jan 17, 9:48 PM MST | Special Weather Statement | TFX | Judith Basin | 117 min |
| Jan 18, 1:23 AM MST | High Wind Watch | TFX | 26 hr | |
| Jan 18, 1:23 AM MST | High Wind Warning | TFX | 55 hr | |
| Jan 18, 2:12 AM MST | Special Weather Statement | TFX | Judith Basin | 2 hr |
Nearby
Winter Storm Warnings in Montana, 2021Every winter storm warning in 2021
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text.