Alert archive / Montana / Blizzard Warnings in 2022
Blizzard Warning 3, NWS Billings, MT
NWS Billings, MT issued this blizzard warning at Dec 12, 2022, 3:23 AM MST for Carter County, Powder River County, Montana; Sheridan County, Wyoming. It took effect at Dec 12, 2022, 11:00 AM MST. It was in force for 47 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 12, 2022, 3:23 AM MST (10:23 UTC)
- In effect from
- Dec 12, 2022, 11:00 AM MST
- Expired
- Dec 14, 2022, 10:29 AM MST
- In force
- 47 hr
- Issued by
- NWS Billings, MT
Counties Carter County, MT, Powder River County, MT, Sheridan County, WY
The radar
The Billings radar (KBLX), 238 km from the middle of the area, began a volume at 10:27 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
Riverton, WY (KRIW), launched 00:00Z, 10.4 hours before the alert went out and 324 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
- 3958 m above ground
- 0-6 km bulk shear
- 71 kt
- 0-1 km storm-relative helicity
- 75 m²/s²
- 0-3 km storm-relative helicity
- 122 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 Billings, MT wrote its last area forecast discussion before this blizzard warning went out at Dec 11, 9:06 PM MST, 6 hours 17 minutes earlier.
Area forecast discussion, Dec 11, 9:06 PM MST, 6 hours 17 minutes before
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Blizzard Warnings in Montana, 2022Blizzard Warnings in Wyoming, 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.