Alert archive / Montana / Severe Thunderstorm Warnings in 2002

Severe Thunderstorm Warning 125, NWS Billings, MT

August 25, 2002Fallon County, Montana

NWS Billings, MT issued this severe thunderstorm warning at Aug 25, 2002, 5:51 PM MDT for Fallon County, Montana. It was in force for 24 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 25, 2002, 5:51 PM MDT (23:51 UTC)
Expired
Aug 25, 2002, 6:15 PM MDT
In force
24 min
Issued by
NWS Billings, MT
Area
Whole counties

County Fallon County, MT

What was reported inside it

TimeReportWhereRemark
Aug 25, 5:57 PM MDTThunderstorm Wind 60 EBaker, 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, 11.9 hours before the alert went out and 288 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 12:00Z on 2002-08-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 452 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 12:00Z on 2002-08-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -73 square meters per square second.1939Sfc1 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
452 J/kg
Mixed-layer CIN
-223 J/kg
Mixed-layer LCL
1862 m above ground
0-6 km bulk shear
21 kt
0-1 km storm-relative helicity
-73 m²/s²
0-3 km storm-relative helicity
-65 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

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 25, 2:38 PM MDT, 3 hours 13 minutes earlier.

Area forecast discussion, Aug 25, 2:38 PM MDT, 3 hours 13 minutes before
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Nearby

Severe Thunderstorm Warnings in Montana, 2002Every severe thunderstorm warning in 2002

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.