Alert archive / South Dakota / Severe Thunderstorm Warnings in 2015

Severe Thunderstorm Warning 191, NWS Aberdeen, SD

August 9, 2015Faulk County, Hand County, Hyde County, South Dakota

NWS Aberdeen, SD issued this severe thunderstorm warning at Aug 9, 2015, 3:29 PM CDT for Faulk County, Hand County, Hyde County, South Dakota. 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
Aug 9, 2015, 3:29 PM CDT (20:29 UTC)
Expired
Aug 9, 2015, 4:15 PM CDT
In force
46 min
Issued by
NWS Aberdeen, SD
Area
Storm-based polygon
Hail
1.25 in
Wind
70.0 mph

Counties Faulk County, SD, Hand County, SD, Hyde County, SD

The radar

The Aberdeen radar (KABR), 103 km from the middle of the area, began a volume at 20:29 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 9, 1:42 PM CDTSevere Thunderstorm WatchSPC9 hr

The nearest sounding before it

Aberdeen, SD (KABR), launched 12:00Z, 8.5 hours before the alert went out and 67 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 2015-08-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 57 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 2015-08-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 17 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
57 J/kg
Mixed-layer CIN
-195 J/kg
Mixed-layer LCL
1506 m above ground
0-6 km bulk shear
35 kt
0-1 km storm-relative helicity
17 m²/s²
0-3 km storm-relative helicity
85 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 Aberdeen, SD wrote its last area forecast discussion before this severe thunderstorm warning went out at Aug 9, 3:01 PM CDT, 28 minutes earlier.

Area forecast discussion, Aug 9, 3:01 PM CDT, 28 minutes before
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Hazardous weather outlook, Aug 9, 4:11 AM CDT, 11 hours 18 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE ABERDEEN SD
411 AM CDT SUN AUG 9 2015

MNZ039-046-SDZ003>011-015>023-033>037-045-048-051-100915-
TRAVERSE-BIG STONE-CORSON-CAMPBELL-MCPHERSON-BROWN-MARSHALL-
ROBERTS-WALWORTH-EDMUNDS-DAY-DEWEY-POTTER-FAULK-SPINK-CLARK-
CODINGTON-GRANT-HAMLIN-DEUEL-STANLEY-SULLY-HUGHES-HYDE-HAND-JONES-
LYMAN-BUFFALO-
411 AM CDT SUN AUG 9 2015

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 SHOWERS AND THUNDERSTORMS ARE POSSIBLE THROUGH THE MID
MORNING HOURS ACROSS EASTERN SOUTH DAKOTA AND WESTERN MINNESOTA.
SEVERE STORMS ARE NOT EXPECTED.

ADDITIONAL THUNDERSTORMS ARE EXPECTED LATER THIS AFTERNOON. SOME
THUNDERSTORMS IN CENTRAL SOUTH DAKOTA COULD BECOME SEVERE WITH
LARGE HAIL AND DAMAGING WINDS POSSIBLE. THE THUNDERSTORMS SHOULD
PROGRESS SOUTHEAST OF THE REGION BY THIS EVENING.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE NEEDED LATER THIS AFTERNOON.

SD

In the hours before

Local storm report, Aug 9, 10:59 AM CDT, 4 hours 30 minutes before
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Local storm report, Aug 9, 11:01 AM CDT, 4 hours 28 minutes before
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Local storm report, Aug 9, 2:05 PM CDT, 1 hour 24 minutes before
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Local storm report, Aug 9, 2:36 PM CDT, 53 minutes before
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Local storm report, Aug 9, 2:41 PM CDT, 48 minutes before
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Local storm report, Aug 9, 2:53 PM CDT, 36 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Aug 8, 7:12 PM CDTSevere Thunderstorm WarningABRDewey, Potter, Stanley, Sully48 min
Aug 8, 8:08 PM CDTSpecial Weather StatementABRPotter52 min
Aug 8, 8:23 PM CDTSevere Thunderstorm WarningABRDewey, Potter52 min
Aug 8, 9:19 PM CDTSevere Thunderstorm WarningABRJones56 min
Aug 9, 12:38 AM CDTSpecial Weather StatementABRDewey, Walworth67 min
Aug 9, 12:42 AM CDTSpecial Weather StatementABRJones33 min
Aug 9, 2:38 AM CDTSpecial Weather StatementABRBrule37 min
Aug 9, 3:08 AM CDTSpecial Weather StatementABREdmunds, Faulk52 min
Aug 9, 3:59 AM CDTSpecial Weather StatementABREdmunds61 min
Aug 9, 5:17 AM CDTSevere Thunderstorm WarningABRBrown, Day24 min
Aug 9, 7:31 AM CDTSevere Thunderstorm WarningABRCodington, Day, Grant21 min
Aug 9, 1:00 PM CDTSevere Thunderstorm WarningABREdmunds, Potter, Walworth45 min
Aug 9, 2:20 PM CDTSevere Thunderstorm WarningABREdmunds, Faulk40 min
Aug 9, 2:36 PM CDTSevere Thunderstorm WarningABRBuffalo39 min
Aug 9, 2:52 PM CDTSevere Thunderstorm WarningABRFaulk, Hand, Hyde, Potter38 min
Aug 9, 4:01 PM CDTSevere Thunderstorm WarningABRFaulk, Hand, Spink44 min
Aug 9, 4:47 PM CDTSevere Thunderstorm WarningABRClark, Spink43 min
Aug 9, 5:30 PM CDTSevere Thunderstorm WarningABRClark, Hamlin, Spink45 min

Nearby

Severe Thunderstorm Warnings in South Dakota, 2015Every severe thunderstorm warning in 2015

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.