Alert archive / Montana / Severe Thunderstorm Warnings in 2014

Severe Thunderstorm Warning 45, NWS Glasgow, MT

June 26, 2014Dawson County, McCone County, Prairie County, Montana

NWS Glasgow, MT issued this severe thunderstorm warning at Jun 26, 2014, 10:10 PM MDT for Dawson County, McCone County, Prairie County, Montana. It was in force for 22 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 26, 2014, 10:10 PM MDT (04:10 UTC)
Expired
Jun 26, 2014, 10:32 PM MDT
In force
22 min
Issued by
NWS Glasgow, MT
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Dawson County, MT, McCone County, MT, Prairie County, MT

The radar

The Glasgow radar (KGGW), 142 km from the middle of the area, began a volume at 04:12 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 nearest sounding before it

Glasgow Intl Airport, MT (KGGW), launched 00:00Z, 4.2 hours before the alert went out and 142 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 2014-06-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 282 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 2014-06-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 124 square meters per square second.193958Sfc1 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
282 J/kg
Mixed-layer CIN
-36 J/kg
Mixed-layer LCL
1278 m above ground
0-6 km bulk shear
51 kt
0-1 km storm-relative helicity
124 m²/s²
0-3 km storm-relative helicity
142 m²/s²
Significant tornado parameter
0.1
Supercell composite
3.8

Open this sounding in Storm Lab

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 26, 7:00 PM MDTAreal Flood AdvisoryGGWPhillips, Valley3 hr
Jun 26, 7:33 PM MDTSpecial Weather StatementGGWValley57 min
Jun 26, 8:20 PM MDTSpecial Weather StatementGGWValley40 min
Jun 26, 10:02 PM MDTAreal Flood AdvisoryGGWDaniels, Valley3 hr
Jun 26, 10:10 PM MDTAreal Flood AdvisoryGGWWibaux8 hr
Jun 26, 10:54 PM MDTAreal Flood AdvisoryGGWPrairie3 hr
Jun 27, 1:01 AM MDTAreal Flood AdvisoryGGWDawson, McCone, Richland3 hr

Nearby

Severe Thunderstorm Warnings in Montana, 2014Every severe thunderstorm warning in 2014

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.