Alert archive / Montana / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 62, NWS Billings, MT

June 28, 1997Carter County, Custer County, Fallon County, Montana

NWS Billings, MT issued this severe thunderstorm warning at Jun 28, 1997, 8:30 PM MDT for Carter County, Custer County, Fallon County, Montana. It was in force for 65 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Jun 28, 1997, 8:30 PM MDT (02:30 UTC)
Expired
Jun 28, 1997, 9:35 PM MDT
In force
65 min
Issued by
NWS Billings, MT
Area
Whole counties

Counties Carter County, MT, Custer County, MT, Fallon County, MT

The nearest sounding before it

Bismarck Municip, ND (KBIS), launched 00:00Z, 2.5 hours before the alert went out and 328 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-pSkew-T log-p diagram, Bismarck Municip, ND at 00:00Z on 1997-06-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 547 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Bismarck Municip, ND at 00:00Z on 1997-06-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 5 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
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
547 J/kg
Mixed-layer CIN
-47 J/kg
Mixed-layer LCL
2546 m above ground
0-6 km bulk shear
36 kt
0-1 km storm-relative helicity
5 m²/s²
0-3 km storm-relative helicity
25 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

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 Jun 28, 8:03 PM MDT, 27 minutes earlier.

Area forecast discussion, Jun 28, 8:03 PM MDT, 27 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Jun 28, 7:04 PM MDTSevere Thunderstorm WarningBYZPowder River61 min
Jun 28, 7:19 PM MDTSevere Thunderstorm WarningBYZGolden Valley, Wheatland61 min
Jun 28, 9:38 PM MDTSevere Thunderstorm WarningBYZRosebud, Treasure62 min
Jun 29, 4:35 PM MDTTornado WarningBYZWheatland65 min
Jun 29, 5:07 PM MDTSevere Thunderstorm WarningBYZRosebud, Treasure63 min
Jun 29, 5:30 PM MDTSevere Thunderstorm WarningBYZSweet Grass65 min
Jun 29, 5:42 PM MDTSevere Thunderstorm WarningBYZGolden Valley, Wheatland63 min
Jun 28, 6:09 PM MDTSevere Thunderstorm WarningBYZSheridan61 min

Nearby

Severe Thunderstorm Warnings in Montana, 1997Every 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; the sounding from the Mesonet's radiosonde archive.