Alert archive / Montana / High Wind Watches in 2011
High Wind Watch 9, NWS Glasgow, MT
NWS Glasgow, MT issued this high wind watch at Dec 30, 2011, 3:23 AM MST for 12 counties in Montana. It took effect at Dec 31, 2011, 8:00 AM MST. It was in force for .
The area
The counties it named.
The facts
- Issued
- Dec 30, 2011, 3:23 AM MST (10:23 UTC)
- In effect from
- Dec 31, 2011, 8:00 AM MST
- Expired
- Dec 31, 2011, 2:45 AM MST
- In force
- Issued by
- NWS Glasgow, MT
Counties Daniels County, MT, Dawson County, MT, Garfield County, MT, McCone County, MT, Petroleum County, MT, Phillips County, MT, Prairie County, MT, Richland County, MT, Roosevelt County, MT, Sheridan County, MT, Valley County, MT, Wibaux County, MT
The radar
The Glasgow radar (KGGW), 77 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
Bismarck Municip, ND (KBIS), launched 00:00Z, 10.4 hours before the alert went out and 402 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
- 707 m above ground
- 0-6 km bulk shear
- 35 kt
- 0-1 km storm-relative helicity
- 112 m²/s²
- 0-3 km storm-relative helicity
- 125 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this high wind watch 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 high wind watch went out at Dec 29, 2:16 PM MST, 13 hours 7 minutes earlier.
Area forecast discussion, Dec 29, 2:16 PM MST, 13 hours 7 minutes before
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</html>Hazardous weather outlook, Dec 29, 2:35 PM MST, 12 hours 48 minutes before
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High Wind Watches in Montana, 2011Every high wind watch in 2011
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.