Alert archive / Montana / Red Flag Warnings in 2011
Red Flag Warning 12, NWS Billings, MT
NWS Billings, MT issued this red flag warning at Nov 3, 2011, 3:21 AM MDT for Carter County, Fallon County, Montana. It took effect at Nov 3, 2011, 12:00 PM MDT. It was in force for 6 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 3, 2011, 3:21 AM MDT (09:21 UTC)
- In effect from
- Nov 3, 2011, 12:00 PM MDT
- Expired
- Nov 3, 2011, 6:00 PM MDT
- In force
- 6 hr
- Issued by
- NWS Billings, MT
Counties Carter County, MT, Fallon County, MT
The radar
The Rapid City radar (KUDX), 238 km from the middle of the area, began a volume at 09:24 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
Glasgow Intl Airport, MT (KGGW), launched 00:00Z, 9.4 hours before the alert went out and 302 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
- 3422 m above ground
- 0-6 km bulk shear
- 35 kt
- 0-1 km storm-relative helicity
- 162 m²/s²
- 0-3 km storm-relative helicity
- 253 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this red flag 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 red flag warning went out at Nov 2, 3:49 PM MDT, 11 hours 32 minutes earlier.
Area forecast discussion, Nov 2, 3:49 PM MDT, 11 hours 32 minutes before
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</html>Hazardous weather outlook, Nov 2, 2:10 PM MDT, 13 hours 11 minutes before
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</html>Nearby
Red Flag Warnings in Montana, 2011Every red flag warning 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.