Alert archive / Montana / Severe Thunderstorm Warnings in 2001

Severe Thunderstorm Warning 152, NWS Billings, MT

July 14, 2001Carter County, Powder River County, Montana

NWS Billings, MT issued this severe thunderstorm warning at Jul 14, 2001, 4:29 PM MDT for Carter County, Powder River County, Montana. It was in force for 61 min. 1 report came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued: Jul 14, 2001, 4:29 PM MDT (22:29 UTC)
Expired: Jul 14, 2001, 5:30 PM MDT
In force: 61 min
Issued by: NWS Billings, MT
Area: Whole counties

Counties Carter County, MT, Powder River County, MT

What was reported inside it

Time	Report	Where	Remark
Jul 14, 5:00 PM MDT	Hail 1	Biddle, MT

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

The nearest sounding before it

Bismarck Municip, ND (KBIS), launched 12:00Z, 10.5 hours before the alert went out and 368 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: 1635 J/kg
Mixed-layer CIN: -110 J/kg
Mixed-layer LCL: 864 m above ground
0-6 km bulk shear: 21 kt
0-1 km storm-relative helicity: 5 m²/s²
0-3 km storm-relative helicity: 35 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.6

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

What forecasters said that day

The local office's own words before this severe thunderstorm 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 severe thunderstorm warning went out at Jul 14, 1:50 PM MDT, 2 hours 39 minutes earlier.

Area forecast discussion, Jul 14, 1:50 PM MDT, 2 hours 39 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
Jul 13, 6:00 PM MDT	Severe Thunderstorm Warning	BYZ	Yellowstone	60 min
Jul 13, 6:17 PM MDT	Severe Thunderstorm Warning	BYZ	Stillwater	43 min
Jul 13, 6:30 PM MDT	Severe Thunderstorm Warning	BYZ	Golden Valley	60 min
Jul 13, 6:54 PM MDT	Severe Thunderstorm Warning	BYZ	Yellowstone	66 min
Jul 13, 7:33 PM MDT	Severe Thunderstorm Warning	BYZ	Musselshell	57 min
Jul 13, 7:35 PM MDT	Severe Thunderstorm Warning	BYZ	Stillwater	55 min
Jul 13, 8:00 PM MDT	Severe Thunderstorm Warning	BYZ	Big Horn, Yellowstone	60 min
Jul 13, 8:55 PM MDT	Severe Thunderstorm Warning	BYZ	Big Horn, Treasure	65 min
Jul 13, 8:58 PM MDT	Flash Flood Warning	BYZ	Big Horn	62 min
Jul 13, 9:25 PM MDT	Severe Thunderstorm Warning	BYZ	Yellowstone	65 min
Jul 13, 9:59 PM MDT	Severe Thunderstorm Warning	BYZ	Big Horn	61 min
Jul 13, 10:32 PM MDT	Severe Thunderstorm Warning	BYZ	Rosebud	58 min
Jul 14, 3:16 PM MDT	Severe Thunderstorm Warning	BYZ	Sweet Grass	59 min
Jul 14, 4:14 PM MDT	Severe Thunderstorm Warning	BYZ	Yellowstone	61 min
Jul 14, 4:45 PM MDT	Severe Thunderstorm Warning	BYZ	Big Horn	60 min
Jul 14, 4:56 PM MDT	Severe Thunderstorm Warning	BYZ	Yellowstone	64 min
Jul 14, 5:14 PM MDT	Severe Thunderstorm Warning	BYZ	Wheatland	61 min
Jul 14, 5:47 PM MDT	Severe Thunderstorm Warning	BYZ	Big Horn	58 min
Jul 14, 5:56 PM MDT	Severe Thunderstorm Warning	BYZ	Yellowstone	34 min

Nearby

Severe Thunderstorm Warnings in Montana, 2001 Every severe thunderstorm warning in 2001

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.