Alert archive / Montana / Wind Chill Advisories in 2017
Wind Chill Advisory 9, NWS Glasgow, MT
NWS Glasgow, MT issued this wind chill advisory at Feb 8, 2017, 1:25 PM MST for 6 counties in Montana. It was in force for 21 hr.
The area
The counties it named.
The facts
- Issued
- Feb 8, 2017, 1:25 PM MST (20:25 UTC)
- Expired
- Feb 9, 2017, 10:11 AM MST
- In force
- 21 hr
- Issued by
- NWS Glasgow, MT
Counties Daniels County, MT, Phillips County, MT, Richland County, MT, Roosevelt County, MT, Sheridan County, MT, Valley County, MT
The radar
The Glasgow radar (KGGW), 71 km from the middle of the area, began a volume at 20:31 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 12:00Z, 8.4 hours before the alert went out and 379 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
- 715 m above ground
- 0-6 km bulk shear
- 84 kt
- 0-1 km storm-relative helicity
- 227 m²/s²
- 0-3 km storm-relative helicity
- 334 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this wind chill advisory 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 wind chill advisory went out at Feb 8, 9:33 AM MST, 3 hours 52 minutes earlier.
Area forecast discussion, Feb 8, 9:33 AM MST, 3 hours 52 minutes before
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</html>Hazardous weather outlook, Feb 8, 3:05 AM MST, 10 hours 20 minutes before
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<div class="status" id="status">Temporary Notice</div>
<h1 id="headline">This service is currently unavailable.</h1>
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The site you requested is temporarily down for maintenance or an unexpected outage.
</p>
<p id="message2">
Please try again in a few minutes.
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</html>The office that day
Everything else NWS Glasgow, MT issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 8, 2:50 AM MST | Wind Chill Warning | GGW | Daniels, Sheridan, Valley | 6 hr |
| Feb 8, 1:25 PM MST | Winter Weather Advisory | GGW | Daniels, Garfield, McCone, Petroleum, Phillips, Richland and 3 more | 31 hr |
Nearby
Wind Chill Advisories in Montana, 2017Every wind chill advisory 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.