Alert archive / Montana / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 147, NWS Billings, MT

August 28, 1997Fallon County, Montana

NWS Billings, MT issued this severe thunderstorm warning at Aug 28, 1997, 12:53 AM MDT for Fallon County, Montana. It was in force for 47 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: Aug 28, 1997, 12:53 AM MDT (06:53 UTC)
Expired: Aug 28, 1997, 1:40 AM MDT
In force: 47 min
Issued by: NWS Billings, MT
Area: Whole counties

County Fallon County, MT

What was reported inside it

Time	Report	Where	Remark
Aug 28, 1:07 AM MDT	Hail 0.88	Baker, 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

Glasgow Intl Airport, MT (KGGW), launched 00:00Z, 6.9 hours before the alert went out and 267 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: 1641 J/kg
Mixed-layer CIN: -37 J/kg
Mixed-layer LCL: 2711 m above ground
0-6 km bulk shear: 39 kt
0-1 km storm-relative helicity: 18 m²/s²
0-3 km storm-relative helicity: 81 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 3.7

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 Aug 27, 8:30 PM MDT, 4 hours 23 minutes earlier.

Area forecast discussion, Aug 27, 8:30 PM MDT, 4 hours 23 minutes before

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In the hours before

Local storm report, Aug 27, 8:12 PM MDT, 4 hours 41 minutes before

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Local storm report, Aug 27, 8:13 PM MDT, 4 hours 40 minutes before

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Local storm report, Aug 27, 11:29 PM MDT, 1 hour 24 minutes before

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Local storm report, Aug 27, 11:30 PM MDT, 1 hour 23 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 27, 6:22 PM MDT	Severe Thunderstorm Warning	BYZ	Yellowstone	63 min
Aug 27, 9:37 PM MDT	Severe Thunderstorm Warning	BYZ	Custer	63 min
Aug 27, 11:49 PM MDT	Severe Thunderstorm Warning	BYZ	Fallon	61 min

Nearby

Severe Thunderstorm Warnings in Montana, 1997 Every severe thunderstorm warning in 1997

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.