Alert archive / Montana / Severe Thunderstorm Warnings in 2005

Severe Thunderstorm Warning 142, NWS Glasgow, MT

July 13, 2005Dawson County, Richland County, Montana

NWS Glasgow, MT issued this severe thunderstorm warning at Jul 13, 2005, 9:59 PM MDT for Dawson County, Richland County, Montana. It was in force for 46 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
Jul 13, 2005, 9:59 PM MDT (03:59 UTC)
Expired
Jul 13, 2005, 10:45 PM MDT
In force
46 min
Issued by
NWS Glasgow, MT
Area
Counties, with a storm outline in the text

Counties Dawson County, MT, Richland County, MT

The radar

The Glasgow radar (KGGW), 160 km from the middle of the area, began a volume at 04:02 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Jul 13, 7:55 PM MDTSevere Thunderstorm WatchSPC3 hr

The nearest sounding before it

Glasgow Intl Airport, MT (KGGW), launched 00:00Z, 4.0 hours before the alert went out and 159 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, Glasgow Intl Airport, MT at 00:00Z on 2005-07-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 708 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, Glasgow Intl Airport, MT at 00:00Z on 2005-07-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 81 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
708 J/kg
Mixed-layer CIN
-288 J/kg
Mixed-layer LCL
2696 m above ground
0-6 km bulk shear
53 kt
0-1 km storm-relative helicity
81 m²/s²
0-3 km storm-relative helicity
90 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 13, 7:19 PM MDTSevere Thunderstorm WarningGGWMcCone56 min
Jul 13, 8:01 PM MDTSevere Thunderstorm WarningGGWRichland, Roosevelt59 min
Jul 13, 8:09 PM MDTSevere Thunderstorm WarningGGWPhillips, Valley66 min
Jul 13, 8:13 PM MDTSevere Thunderstorm WarningGGWMcCone, Richland, Roosevelt15 min
Jul 13, 8:30 PM MDTSevere Thunderstorm WarningGGWRichland, Roosevelt, Sheridan60 min
Jul 13, 8:45 PM MDTSevere Thunderstorm WarningGGWRichland60 min
Jul 13, 8:54 PM MDTSevere Thunderstorm WarningGGWDawson, McCone, Prairie, Richland66 min
Jul 13, 9:01 PM MDTSevere Thunderstorm WarningGGWMcCone, Richland, Roosevelt, Valley59 min
Jul 13, 9:23 PM MDTSevere Thunderstorm WarningGGWDaniels, Dawson, Richland, Roosevelt, Valley, Wibaux67 min
Jul 13, 9:32 PM MDTSevere Thunderstorm WarningGGWRichland, Roosevelt, Sheridan58 min
Jul 13, 10:28 PM MDTSevere Thunderstorm WarningGGWDawson, Richland, Wibaux37 min

Nearby

Severe Thunderstorm Warnings in Montana, 2005Every severe thunderstorm warning in 2005

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; radar from the NEXRAD Level II archive.