Alert archive / Minnesota / Severe Thunderstorm Warnings in 2013

Severe Thunderstorm Warning 74, NWS Aberdeen, SD

June 26, 2013Roberts County, South Dakota; Big Stone County, Traverse County, Minnesota

NWS Aberdeen, SD issued this severe thunderstorm warning at Jun 26, 2013, 1:26 AM CDT for Roberts County, South Dakota; Big Stone County, Traverse County, Minnesota. It was in force for 49 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 26, 2013, 1:26 AM CDT (06:26 UTC)
Expired: Jun 26, 2013, 2:15 AM CDT
In force: 49 min
Issued by: NWS Aberdeen, SD
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Big Stone County, MN, Traverse County, MN, Roberts County, SD

The radar

The Aberdeen radar (KABR), 142 km from the middle of the area, began a volume at 06:25 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.

Issued	Product	Office	Lasted
Jun 25, 11:40 PM CDT	Severe Thunderstorm Watch	SPC	5 hr

The nearest sounding before it

Aberdeen, SD (KABR), launched 00:00Z, 6.4 hours before the alert went out and 161 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: 3162 J/kg
Mixed-layer CIN: -45 J/kg
Mixed-layer LCL: 999 m above ground
0-6 km bulk shear: 30 kt
0-1 km storm-relative helicity: 42 m²/s²
0-3 km storm-relative helicity: 44 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.5

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 26, 12:34 AM CDT, 52 minutes earlier.

Area forecast discussion, Jun 26, 12:34 AM CDT, 52 minutes before

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Hazardous weather outlook, Jun 25, 4:52 AM CDT, 20 hours 34 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE ABERDEEN SD
452 AM CDT TUE JUN 25 2013

MNZ039-046-SDZ003>011-015>023-033>037-045-048-051-261000-
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-
452 AM CDT TUE JUN 25 2013 /352 AM MDT TUE JUN 25 2013/

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 EXPECTED TO DEVELOP ACROSS
CENTRAL/NORTH CENTRAL SOUTH DAKOTA THIS AFTERNOON THEN INTO
NORTHEAST AND EAST CENTRAL SOUTH DAKOTA INTO EARLY EVENING. SOME
STORMS COULD BECOME SEVERE WITH LARGE HAIL AND STRONG WINDS BEING
THE MAIN THREATS. SOME OF THE STRONGER STORMS MAY ALSO PRODUCE
HEAVY RAINFALL.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE NECESSARY THIS AFTERNOON AND EVENING
FROM NORTH CENTRAL TO NORTHEAST AND EAST CENTRAL SOUTH DAKOTA.

TMT

In the hours before

Local storm report, Jun 25, 8:42 PM CDT, 4 hours 44 minutes before

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Local storm report, Jun 25, 9:04 PM CDT, 4 hours 22 minutes before

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Special weather statement, Jun 25, 9:17 PM CDT, 4 hours 9 minutes before

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Special weather statement, Jun 25, 10:09 PM CDT, 3 hours 17 minutes before

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Local storm report, Jun 25, 10:45 PM CDT, 2 hours 41 minutes before

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Local storm report, Jun 25, 10:48 PM CDT, 2 hours 38 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 25, 7:50 PM CDT	Severe Thunderstorm Warning	ABR	Campbell, McPherson, Walworth	25 min
Jun 25, 8:04 PM CDT	Tornado Warning Tornado observed	ABR	Campbell, Walworth	26 min
Jun 25, 8:14 PM CDT	Severe Thunderstorm Warning	ABR	Campbell, Edmunds, McPherson, Walworth	46 min
Jun 25, 9:46 PM CDT	Severe Thunderstorm Warning	ABR	Edmunds	29 min
Jun 26, 12:18 AM CDT	Severe Thunderstorm Warning	ABR	Marshall, Roberts	42 min
Jun 26, 12:48 AM CDT	Severe Thunderstorm Warning	ABR	Roberts	42 min
Jun 26, 2:14 AM CDT	Severe Thunderstorm Warning	ABR	Big Stone	46 min

Nearby

Severe Thunderstorm Warnings in Minnesota, 2013 Severe Thunderstorm Warnings in South Dakota, 2013 Every severe thunderstorm warning in 2013

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.