Alert archive / Montana / Special Weather Statements in 2011

Special Weather Statement, NWS Billings, MT

August 14, 2011Fallon County, Montana

NWS Billings, MT issued this special weather statement at Aug 14, 2011, 7:21 PM MDT for Fallon County, Montana. It was in force for 39 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Aug 14, 2011, 7:21 PM MDT (01:21 UTC)
Expired: Aug 14, 2011, 8:00 PM MDT
In force: 39 min
Issued by: NWS Billings, MT

County Fallon County, MT

The nearest sounding before it

Glasgow Intl Airport, MT (KGGW), launched 00:00Z, 1.4 hours before the alert went out and 280 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: NaN m above ground
0-6 km bulk shear: 21 kt
0-1 km storm-relative helicity: 46 m²/s²
0-3 km storm-relative helicity: 41 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

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What forecasters said that day

The local office's own words before this special weather statement 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 special weather statement went out at Aug 14, 3:45 PM MDT, 3 hours 36 minutes earlier.

Area forecast discussion, Aug 14, 3:45 PM MDT, 3 hours 36 minutes before

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Hazardous weather outlook, Aug 14, 2:57 PM MDT, 4 hours 24 minutes before

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In the hours before

Special weather statement, Aug 14, 5:58 PM MDT, 1 hour 23 minutes before

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Special weather statement, Aug 14, 6:42 PM MDT, 39 minutes before

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Special weather statement, Aug 14, 7:21 PM MDT, 0 minutes before

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The office that day

Everything else NWS Billings, MT issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Aug 14, 6:42 PM MDT	Special Weather Statement	BYZ	Carter	63 min
Aug 15, 2:57 PM MDT	Special Weather Statement	BYZ	Golden Valley, Wheatland	48 min
Aug 15, 3:44 PM MDT	Special Weather Statement	BYZ	Golden Valley, Musselshell	61 min
Aug 15, 3:45 PM MDT	Special Weather Statement	BYZ		60 min
Aug 15, 4:13 PM MDT	Special Weather Statement	BYZ	Yellowstone	62 min
Aug 15, 4:44 PM MDT	Special Weather Statement	BYZ	Musselshell	46 min
Aug 15, 4:58 PM MDT	Special Weather Statement	BYZ	Big Horn	62 min
Aug 15, 5:29 PM MDT	Special Weather Statement	BYZ	Treasure	46 min
Aug 15, 5:40 PM MDT	Special Weather Statement	BYZ	Carter	20 min

Nearby

Special Weather Statements in Montana, 2011 Every special weather statement 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.