Alert archive / Montana / Winter Storm Warnings in 2017
Winter Storm Warning 14, NWS Billings, MT
NWS Billings, MT issued this winter storm warning at Nov 16, 2017, 3:22 AM MST for 4 counties in Montana. It was in force for 38 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
- Nov 16, 2017, 3:22 AM MST (10:22 UTC)
- Expired
- Nov 17, 2017, 5:00 PM MST
- In force
- 38 hr
- Issued by
- NWS Billings, MT
Counties Carbon County, MT, Park County, MT, Stillwater County, MT, Sweet Grass County, MT
The radar
The Billings radar (KBLX), 93 km from the middle of the area, began a volume at 10:26 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
Great_falls, MT (KTFX), launched 00:00Z, 10.4 hours before the alert went out and 223 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
- 2296 m above ground
- 0-6 km bulk shear
- 50 kt
- 0-1 km storm-relative helicity
- 213 m²/s²
- 0-3 km storm-relative helicity
- 248 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this winter storm 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 winter storm warning went out at Nov 15, 9:22 PM MST, 6 hours earlier.
Area forecast discussion, Nov 15, 9:22 PM MST, 6 hours before
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</html>Hazardous weather outlook, Nov 15, 3:42 PM MST, 11 hours 40 minutes before
Hazardous Weather Outlook National Weather Service Billings MT 342 PM MST Wed Nov 15 2017 MTZ067-162245- Absaroka/Beartooth Mountains- 342 PM MST Wed Nov 15 2017 This Hazardous Weather Outlook is for portions of south central Montana. * WHAT...Accumulating snowfall, possibly heavy at times. * WHERE...The Absaroka/Beartooth mountains. Greatest snowfall totals on west facing aspects above 7,000 feet. * WHEN...Tonight through Friday. * ADDITIONAL HAZARD CONCERNS...Accumulating snowfall and gusty winds will create hazardous backcountry travel. PRECAUTIONARY/PREPAREDNESS ACTIONS... Those planning to recreate in the high country should monitor the forecast closely over the coming days. &&
The office that day
Everything else NWS Billings, MT issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Nov 15, 8:57 PM MST | Wind Advisory | BYZ | Stillwater, Sweet Grass | 14 hr |
Nearby
Winter Storm Warnings in Montana, 2017Every winter storm warning in 2017
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.