Alert archive / Montana / Severe Thunderstorm Warnings in 1992

Severe Thunderstorm Warning 13, NWS Billings, MT

July 6, 1992Custer County, Fallon County, Montana

NWS Billings, MT issued this severe thunderstorm warning at Jul 6, 1992, 12:48 AM MDT for Custer County, Fallon County, Montana. It was in force for 57 min.

The area

The counties it named.

The facts

Issued
Jul 6, 1992, 12:48 AM MDT (06:48 UTC)
Expired
Jul 6, 1992, 1:45 AM MDT
In force
57 min
Issued by
NWS Billings, MT
Area
Whole counties

Counties Custer County, MT, Fallon County, MT

The nearest sounding before it

Bismarck Municip, ND (KBIS), launched 00:00Z, 6.8 hours before the alert went out and 333 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 1992-07-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 1992-07-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 29 square meters per square second.1939587897Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1849 m above ground
0-6 km bulk shear
63 kt
0-1 km storm-relative helicity
29 m²/s²
0-3 km storm-relative helicity
166 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

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.

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 5, 8:21 PM MDTSevere Thunderstorm WarningBYZGolden Valley, Wheatland69 min
Jul 5, 9:09 PM MDTSevere Thunderstorm WarningBYZMusselshell, Rosebud66 min
Jul 5, 10:59 PM MDTSevere Thunderstorm WarningBYZRosebud61 min
Jul 5, 11:11 PM MDTSevere Thunderstorm WarningBYZMusselshell50 min
Jul 5, 11:23 PM MDTSevere Thunderstorm WarningBYZFallon67 min
Jul 5, 11:39 PM MDTSevere Thunderstorm WarningBYZCuster, Prairie66 min
Jul 6, 12:31 AM MDTSevere Thunderstorm WarningBYZRosebud44 min

Nearby

Severe Thunderstorm Warnings in Montana, 1992Every severe thunderstorm warning in 1992

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.