Alert archive / South Dakota / Severe Thunderstorm Warnings in 2015

Severe Thunderstorm Warning 25, NWS Aberdeen, SD

June 14, 2015Hughes County, Stanley County, Sully County, South Dakota

NWS Aberdeen, SD issued this severe thunderstorm warning at Jun 14, 2015, 6:18 AM CDT for Hughes County, Stanley County, Sully County, South Dakota. It was in force for 42 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 14, 2015, 6:18 AM CDT (11:18 UTC)
Expired: Jun 14, 2015, 7:00 AM CDT
In force: 42 min
Issued by: NWS Aberdeen, SD
Area: Storm-based polygon
Hail: 0.88 in
Wind: 60.0 mph

Counties Hughes County, SD, Stanley County, SD, Sully County, SD

The radar

The Aberdeen radar (KABR), 181 km from the middle of the area, began a volume at 11:17 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

Rapid City, SD (KRAP), launched 00:00Z, 11.3 hours before the alert went out and 212 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 448 J/kg
Mixed-layer CIN: -119 J/kg
Mixed-layer LCL: 1606 m above ground
0-6 km bulk shear: 44 kt
0-1 km storm-relative helicity: 18 m²/s²
0-3 km storm-relative helicity: 188 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.5

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 Jun 14, 6:13 AM CDT, 5 minutes earlier.

Area forecast discussion, Jun 14, 6:13 AM CDT, 5 minutes before

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Hazardous weather outlook, Jun 14, 4:25 AM CDT, 1 hour 53 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE ABERDEEN SD
425 AM CDT SUN JUN 14 2015

MNZ039-046-SDZ003>011-015>023-033>037-045-048-051-150930-
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-
425 AM CDT SUN JUN 14 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

THUNDERSTORMS ARE EXPECTED THROUGH THE MORNING HOURS. WHILE SEVERE
STORMS ARE NOT EXPECTED...SOME THUNDERSTORMS WILL PRODUCE SMALL
HAIL AND GUSTY WINDS. ADDITIONAL THUNDERSTORMS ARE POSSIBLE THIS
AFTERNOON. SOME OF THESE COULD BECOME STRONG TO SEVERE WITH HAIL
AND DAMAGING WINDS POSSIBLE. LOCATIONS ALONG AND EAST OF THE
INTERSTATE 29 WILL HAVE THE BEST POTENTIAL OF SEEING SEVERE
STORMS.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY

SHOWERS AND THUNDERSTORMS ARE POSSIBLE ON TUESDAY THROUGH TUESDAY
NIGHT. SOME STORMS TUESDAY NIGHT COULD PRODUCE HAIL AND DAMAGING
WINDS.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE NEEDED TODAY.

SD

In the hours before

Special weather statement, Jun 14, 5:29 AM CDT, 49 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ABERDEEN SD
429 AM MDT SUN JUN 14 2015

SDZ003-015-033-141115-
STANLEY SD-CORSON SD-DEWEY SD-
429 AM MDT SUN JUN 14 2015

...SIGNIFICANT WEATHER ADVISORY FOR WESTERN DEWEY...CORSON AND
NORTHWESTERN STANLEY COUNTIES UNTIL 515 AM MDT...

AT 428 AM MDT...DOPPLER RADAR WAS TRACKING A LINE OF STRONG
THUNDERSTORMS ALONG A LINE EXTENDING FROM NEAR SELFRIDGE TO 7 MILES
SOUTH OF BRIDGER...AND MOVING EAST AT 35 MPH.

SMALL HAIL AND WIND GUSTS UP TO 50 MPH WILL BE POSSIBLE WITH THESE
STORMS.

LOCATIONS IMPACTED INCLUDE...
EAGLE BUTTE...MCLAUGHLIN...LANTRY...TIMBER LAKE...MCINTOSH...
ISABEL...FIRESTEEL...WATAUGA...MAHTO...KLEIN RANCH...BLACK HORSE...
BEAR CREEK...PARADE...BULLHEAD...SPRING LAKE...WALKER...GREEN
GRASS...WHITE HORSE...TRAIL CITY AND SANSARC.

LAT...LON 4594 10051 4439 10100 4439 10115 4499 10114
      4500 10150 4547 10147 4548 10176 4594 10155
TIME...MOT...LOC 1028Z 269DEG 33KT 4601 10100 4445 10186

TDK

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 14, 5:29 AM CDT	Special Weather Statement	ABR	Corson, Dewey	46 min
Jun 14, 5:41 AM CDT	Severe Thunderstorm Warning	ABR	Dewey	64 min
Jun 14, 6:40 AM CDT	Special Weather Statement	ABR	Potter, Walworth	50 min
Jun 14, 6:49 AM CDT	Special Weather Statement	ABR	Potter	41 min
Jun 14, 7:12 AM CDT	Special Weather Statement	ABR	Brown	48 min
Jun 14, 7:42 AM CDT	Special Weather Statement	ABR	Edmunds, Faulk, McPherson	63 min
Jun 14, 8:38 AM CDT	Special Weather Statement	ABR	Brown	67 min
Jun 14, 5:04 PM CDT	Special Weather Statement	ABR	Codington	41 min
Jun 14, 5:37 PM CDT	Special Weather Statement	ABR	Codington	23 min
Jun 14, 6:03 PM CDT	Special Weather Statement	ABR	Grant	57 min

Nearby

Severe Thunderstorm Warnings in South Dakota, 2015 Every 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.