Alert archive / South Dakota / Severe Thunderstorm Warnings in 2015

Severe Thunderstorm Warning 149, NWS Aberdeen, SD

July 25, 2015Jones County, Lyman County, South Dakota

NWS Aberdeen, SD issued this severe thunderstorm warning at Jul 25, 2015, 8:14 AM CDT for Jones County, Lyman County, South Dakota. It was in force for 32 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 25, 2015, 8:14 AM CDT (13:14 UTC)
Expired
Jul 25, 2015, 8:46 AM CDT
In force
32 min
Issued by
NWS Aberdeen, SD
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Jones County, SD, Lyman County, SD

The radar

The Rapid City radar (KUDX), 206 km from the middle of the area, began a volume at 13:14 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

Aberdeen, SD (KABR), launched 12:00Z, 1.2 hours before the alert went out and 184 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 2015-07-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 272 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 2015-07-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 31 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
272 J/kg
Mixed-layer CIN
-256 J/kg
Mixed-layer LCL
2141 m above ground
0-6 km bulk shear
29 kt
0-1 km storm-relative helicity
31 m²/s²
0-3 km storm-relative helicity
143 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 Jul 25, 6:29 AM CDT, 1 hour 45 minutes earlier.

Area forecast discussion, Jul 25, 6:29 AM CDT, 1 hour 45 minutes before
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Hazardous weather outlook, Jul 25, 3:54 AM CDT, 4 hours 20 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE ABERDEEN SD
354 AM CDT SAT JUL 25 2015

MNZ039-046-SDZ003>011-015>023-033>037-045-048-051-260900-
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-
354 AM CDT SAT JUL 25 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 STORMS WILL AFFECT THE REGION THIS MORNING BUT THE
SEVERE WEATHER THREAT WILL BE LOW UNTIL LATER THIS AFTERNOON. HIGH
WINDS AND HAIL WILL BE THE MAIN THREAT THIS AFTERNOON AND EVENING.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY

OFF AND ON CHANCES FOR STORMS EXISTS INTO THE START OF NEXT WEEK.
SEVERE WEATHER POTENTIAL APPEARS LOW AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE REQUESTED THIS AFTERNOON AND EVENING.

CONNELLY

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 24, 11:43 PM CDTSevere Thunderstorm WarningABRDewey47 min
Jul 25, 12:24 AM CDTSevere Thunderstorm WarningABRDewey51 min
Jul 25, 1:34 AM CDTSpecial Weather StatementABRWalworth41 min
Jul 25, 7:24 AM CDTSevere Thunderstorm WarningABRJones, Stanley51 min
Jul 25, 3:24 PM CDTSevere Thunderstorm WarningABRCampbell, McPherson45 min
Jul 25, 3:47 PM CDTSevere Thunderstorm WarningABRMcPherson58 min
Jul 25, 4:18 PM CDTSevere Thunderstorm WarningABRDewey, Potter, Walworth28 min
Jul 25, 4:41 PM CDTSevere Thunderstorm WarningABRMcPherson49 min
Jul 25, 4:49 PM CDTTornado Warning Tornado observedABRMcPherson26 min
Jul 25, 4:54 PM CDTSevere Thunderstorm WarningABREdmunds, Faulk, Potter, Walworth51 min
Jul 25, 4:56 PM CDTSevere Thunderstorm WarningABREdmunds, Faulk, Potter, Walworth49 min
Jul 25, 5:38 PM CDTSevere Thunderstorm WarningABREdmunds, Faulk, Hand, Hyde, Potter67 min
Jul 25, 6:00 PM CDTSevere Thunderstorm WarningABRBrown, Edmunds, Faulk, Hand, Spink60 min
Jul 25, 6:01 PM CDTSpecial Weather StatementABRPotter44 min
Jul 25, 6:18 PM CDTFlash Flood WarningABRFaulk, Potter6 hr
Jul 25, 6:22 PM CDTFlash Flood WarningABREdmunds6 hr
Jul 25, 6:46 PM CDTSevere Thunderstorm WarningABRBrown, Clark, Day, Spink59 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.