Alert archive / South Dakota / Severe Thunderstorm Warnings in 2009

Severe Thunderstorm Warning 59, NWS Aberdeen, SD

June 27, 2009Campbell County, Corson County, McPherson County, South Dakota

NWS Aberdeen, SD issued this severe thunderstorm warning at Jun 27, 2009, 4:01 PM CDT for Campbell County, Corson County, McPherson County, South Dakota. It was in force for 44 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 27, 2009, 4:01 PM CDT (21:01 UTC)
Expired
Jun 27, 2009, 4:45 PM CDT
In force
44 min
Issued by
NWS Aberdeen, SD
Area
Storm-based polygon

Counties Campbell County, SD, Corson County, SD, McPherson County, SD

The radar

The Bismarck radar (KBIS), 123 km from the middle of the area, began a volume at 21:02 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
Jun 27, 1:39 PM CDTSevere Thunderstorm WatchSPC7 hr

The nearest sounding before it

Bismarck Municip, ND (KBIS), launched 12:00Z, 9.0 hours before the alert went out and 121 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 2009-06-27Temperature 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 12:00Z on 2009-06-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -66 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
840 m above ground
0-6 km bulk shear
46 kt
0-1 km storm-relative helicity
-66 m²/s²
0-3 km storm-relative helicity
2 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The office that day

Everything else NWS Aberdeen, SD issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 26, 7:14 PM CDTSevere Thunderstorm WarningABRJones, Lyman, Stanley46 min
Jun 26, 7:30 PM CDTSevere Thunderstorm WarningABRDewey, Potter, Walworth22 min
Jun 26, 7:59 PM CDTSevere Thunderstorm WarningABRHughes, Jones, Lyman, Stanley, Sully46 min
Jun 26, 8:05 PM CDTSevere Thunderstorm WarningABRDewey, Hughes, Potter, Stanley, Sully40 min
Jun 27, 4:29 PM CDTSevere Thunderstorm WarningABRCampbell, Edmunds, McPherson46 min

Nearby

Severe Thunderstorm Warnings in South Dakota, 2009Every severe thunderstorm warning in 2009

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.