Alert archive / South Dakota / Severe Thunderstorm Warnings in 2007

Severe Thunderstorm Warning 162, NWS Aberdeen, SD

August 8, 2007Buffalo County, Hand County, Hyde County, South Dakota

NWS Aberdeen, SD issued this severe thunderstorm warning at Aug 8, 2007, 5:24 PM CDT for Buffalo County, Hand County, Hyde County, South Dakota. It was in force for 66 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
Aug 8, 2007, 5:24 PM CDT (22:24 UTC)
Expired
Aug 8, 2007, 6:30 PM CDT
In force
66 min
Issued by
NWS Aberdeen, SD
Area
Counties, with a storm outline in the text

Counties Buffalo County, SD, Hand County, SD, Hyde County, SD

The radar

The Aberdeen radar (KABR), 135 km from the middle of the area, began a volume at 22:25 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
Aug 8, 3:56 PM CDTSevere Thunderstorm WatchSPC5 hr

The nearest sounding before it

Aberdeen, SD (KABR), launched 12:00Z, 10.4 hours before the alert went out and 87 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, Aberdeen, SD at 12:00Z on 2007-08-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 244 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, Aberdeen, SD at 12:00Z on 2007-08-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -18 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
244 J/kg
Mixed-layer CIN
-248 J/kg
Mixed-layer LCL
973 m above ground
0-6 km bulk shear
23 kt
0-1 km storm-relative helicity
-18 m²/s²
0-3 km storm-relative helicity
-1 m²/s²
Significant tornado parameter
0.0
Supercell composite
-0.1

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 Aberdeen, SD wrote its last area forecast discussion before this severe thunderstorm warning went out at Aug 8, 4:39 PM CDT, 45 minutes earlier.

Area forecast discussion, Aug 8, 4:39 PM CDT, 45 minutes before
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Hazardous weather outlook, Aug 8, 5:31 AM CDT, 11 hours 53 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE ABERDEEN SD
531 AM CDT WED AUG 8 2007

MNZ039-046-SDZ004>011-016>023-034>037-048-051-091045-
TRAVERSE-BIG STONE-CAMPBELL-MCPHERSON-BROWN-MARSHALL-ROBERTS-
WALWORTH-EDMUNDS-DAY-POTTER-FAULK-SPINK-CLARK-CODINGTON-GRANT-
HAMLIN-DEUEL-SULLY-HUGHES-HYDE-HAND-LYMAN-BUFFALO-
531 AM CDT WED AUG 8 2007

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF WEST CENTRAL
MINNESOTA...CENTRAL SOUTH DAKOTA...NORTH CENTRAL SOUTH DAKOTA AND
NORTHEAST SOUTH DAKOTA.

.DAY ONE...TODAY AND TONIGHT

SCATTERED THUNDERSTORMS ARE POSSIBLE THIS MORNING THROUGH THIS
EVENING AS A LOW PRESSURE SYSTEM MOVES SLOWLY EASTWARD ACROSS THE
DAKOTAS. SOME THUNDERSTORMS THIS AFTERNOON AND EVENING COULD
BECOME SEVERE WITH LARGE HAIL AND STRONG WINDS THE PRIMARY
HAZARDS. LOCALLY HEAVY RAINFALL WILL ALSO BE POSSIBLE WITH THE
STRONGEST STORMS.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY

THUNDERSTORMS WILL AGAIN BE POSSIBLE THURSDAY THROUGH FRIDAY
NIGHT. AT THIS TIME THERE APPEARS TO BE NO SIGNIFICANT SEVERE
THUNDERSTORM POTENTIAL THOUGH ISOLATED SEVERE STORMS ARE POSSIBLE.
ADDITIONAL THUNDERSTORMS ARE POSSIBLE SUNDAY NIGHT.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE NECESSARY THIS AFTERNOON AND EARLY EVENING.

SDZ003-015-033-045-091045-
CORSON-DEWEY-STANLEY-JONES-
531 AM CDT WED AUG 8 2007 /431 AM MDT WED AUG 8 2007/

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL SOUTH
DAKOTA AND NORTH CENTRAL SOUTH DAKOTA.

.DAY ONE...TODAY AND TONIGHT

ISOLATED TO SCATTERED THUNDERSTORMS ARE EXPECTED TO CONTINUE
THROUGHOUT THE MORNING HOURS AS A LOW PRESSURE SYSTEM MOVES SLOWLY
EASTWARD ACROSS THE DAKOTAS. AT THIS TIME THESE STORMS ARE NOT
EXPECTED TO BE SEVERE...BUT LOCALLY HEAVY RAINFALL IS POSSIBLE
WITH STRONGER STORMS.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY

THUNDERSTORMS ARE POSSIBLE THURSDAY AND FRIDAY. AT THIS TIME THERE
APPEARS TO BE NO SIGNIFICANT SEVERE THUNDERSTORM POTENTIAL THOUGH
ISOLATED SEVERE STORMS ARE POSSIBLE.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT ANTICIPATED TODAY OR TONIGHT.

NJE

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 8, 3:34 PM CDTSevere Thunderstorm WarningABREdmunds, Faulk56 min
Aug 8, 4:21 PM CDTSevere Thunderstorm WarningABREdmunds, Faulk54 min
Aug 8, 4:26 PM CDTTornado WarningABRMcPherson34 min
Aug 8, 4:37 PM CDTSevere Thunderstorm WarningABREdmunds, Faulk38 min
Aug 8, 5:01 PM CDTSevere Thunderstorm WarningABRMcPherson44 min
Aug 8, 5:12 PM CDTTornado WarningABRFaulk, Spink33 min
Aug 8, 5:48 PM CDTSevere Thunderstorm WarningABRSpink57 min
Aug 8, 6:34 PM CDTSevere Thunderstorm WarningABRBuffalo26 min

Nearby

Severe Thunderstorm Warnings in South Dakota, 2007Every severe thunderstorm warning in 2007

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.