Alert archive / Montana / Blizzard Warnings in 2022
Blizzard Warning 4, NWS Glasgow, MT
NWS Glasgow, MT issued this blizzard warning at Dec 22, 2022, 2:20 AM MST for Dawson County, Richland County, Wibaux County, Montana. It was in force for 15 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
- Dec 22, 2022, 2:20 AM MST (09:20 UTC)
- Expired
- Dec 22, 2022, 5:00 PM MST
- In force
- 15 hr
- Issued by
- NWS Glasgow, MT
Counties Dawson County, MT, Richland County, MT, Wibaux County, MT
The radar
The Glasgow radar (KGGW), 181 km from the middle of the area, began a volume at 09:19 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The nearest sounding before it
Bismarck Municip, ND (KBIS), launched 00:00Z, 9.3 hours before the alert went out and 300 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 866 m above ground
- 0-6 km bulk shear
- 70 kt
- 0-1 km storm-relative helicity
- -90 m²/s²
- 0-3 km storm-relative helicity
- 32 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this blizzard warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Glasgow, MT wrote its last area forecast discussion before this blizzard warning went out at Dec 22, 2:15 AM MST, 5 minutes earlier.
Area forecast discussion, Dec 22, 2:15 AM MST, 5 minutes before
Area Forecast Discussion National Weather Service Glasgow MT 215 AM MST Thu Dec 22 2022 .DISCUSSION... ...Dangerous wind chills will continue until Friday across NE Montana while blowing snow will significantly reduce visibility at times through this afternoon... ...Will issue a Blizzard Warning for Wibaux and Dawson Counties today... The combination of NW winds gusting to 40+ mph and blowing snow has created whiteout conditions across parts of Dawson and Wibaux. Will upgrade Winter Weather Advisory to a Blizzard Warning there. Will maintain Winter Weather Advisory over the remainder of the forecast area today until 5 pm. Visibility has been as low as one mile in some areas overnight. NW winds will continue at 15 to 30 mph today. Ensembles generally keep the gusty NW winds going until late afternoon and diminishes the winds this evening. The Arctic airmass and associated wind chill danger will continue through Friday or Friday night. As the 1060mb surface high slides southeast from Canada, Arctic temperatures will remain in place. Currently, the coldest conditions are expected Thursday night and Friday morning when widespread lows in the 30 to 40 below range are expected. That is when the center of the Arctic high will move through eastern Montana with mostly clear skies and light winds. Should an overnight low occur of 30 below, it will be Glasgow's first -30 or colder low since Feb 8, 2019 and first -30 in December since Dec 31, 2017. For reference, the last time Glasgow was colder than -35 was Feb 1, 2011 when the low was -37. As the Arctic high slides east on Friday and an upper ridge approaches for Saturday, warm air aloft will approach the region. Some moisture overrunning a warm front to the west Friday night will bring a chance of light snow to parts of the region. A shortwave and surface frontal system Saturday night and Sunday will help mix this warmer air down through the boundary layer and put an end to the Arctic temperatures for now. There will be will be increasing chances for mixed precipitation including snow, freezing rain, and rain with this system. Temperatures will be above normal for late December most of the time next week with chances for mixed precipitation at times. && .AVIATION... Expect a range of VFR to IFR conditions today. The reduced visibility will mainly come from areas of blowing snow today while there will be low clouds with a mix of IFR, MVFR, and VFR ceilings. Skies will clear this evening but ice fog may develop tonight with temperatures in the -30s which will reduce visibility. Winds will be northwest at 15 to 30 kts, gusting to 35 kts at times through this afternoon. Winds will become light and variable this evening. && .GLASGOW WATCHES/WARNINGS/ADVISORIES... Wind Chill Warning until noon MST Friday for Central and Southeast Phillips...Central and Southern Valley...Daniels... Dawson...Eastern Roosevelt...Garfield...McCone...Northern Phillips...Northern Valley...Petroleum...Prairie...Richland... Sheridan...Southwest Phillips...Western Roosevelt...Wibaux. Winter Weather Advisory until 5 PM MST this afternoon for Central and Southeast Phillips...Central and Southern Valley... Daniels...Eastern Roosevelt...Garfield...McCone...Northern Phillips...Northern Valley...Petroleum...Prairie...Richland... Sheridan...Southwest Phillips...Western Roosevelt. Blizzard Warning until 5 PM MST this afternoon for Dawson... Wibaux. && weather.gov/glasgow
Nearby
Blizzard Warnings in Montana, 2022Every blizzard warning in 2022
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.