Alert archive / South Dakota / Severe Thunderstorm Warnings in 2014

Severe Thunderstorm Warning 61, NWS Aberdeen, SD

June 18, 2014Brown County, Day County, Marshall County, South Dakota

NWS Aberdeen, SD issued this severe thunderstorm warning at Jun 18, 2014, 9:57 PM CDT for Brown County, Day County, Marshall County, South Dakota. It was in force for 48 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 18, 2014, 9:57 PM CDT (02:57 UTC)
Expired: Jun 18, 2014, 10:45 PM CDT
In force: 48 min
Issued by: NWS Aberdeen, SD
Area: Storm-based polygon
Hail: 0.75 in
Wind: 70.0 mph

Counties Brown County, SD, Day County, SD, Marshall County, SD

The radar

The Aberdeen radar (KABR), 46 km from the middle of the area, began a volume at 02:58 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 18, 7:37 PM CDT	Tornado Watch	SPC	6 hr

The nearest sounding before it

Aberdeen, SD (KABR), launched 00:00Z, 3.0 hours before the alert went out and 86 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: 1475 J/kg
Mixed-layer CIN: -36 J/kg
Mixed-layer LCL: 1398 m above ground
0-6 km bulk shear: 32 kt
0-1 km storm-relative helicity: 147 m²/s²
0-3 km storm-relative helicity: 228 m²/s²
Significant tornado parameter: 0.7
Supercell composite: 7.6

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 18, 9:17 PM CDT, 40 minutes earlier.

Area forecast discussion, Jun 18, 9:17 PM CDT, 40 minutes before

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Hazardous weather outlook, Jun 18, 4:49 AM CDT, 17 hours 8 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE ABERDEEN SD
449 AM CDT WED JUN 18 2014

MNZ039-046-SDZ003>011-015>023-033>037-045-048-051-191000-
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-
449 AM CDT WED JUN 18 2014 /349 AM MDT WED JUN 18 2014/

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
THIS MORNING...A LINE OF STORMS IS WORKING ITS WAY ACROSS NORTH
CENTRAL SOUTH DAKOTA. STRONG WINDS AND LARGE HAIL ARE POSSIBLE
WITH THIS LINE OF STORMS.

THIS AFTERNOON...SEVERE STORMS ARE POSSIBLE ACROSS THE ENTIRE REGION
AS A LOW PRESSURE SYSTEM INTENSIFIES. STORMS ARE EXPECTED TO
INITIATE OVER CENTRAL SOUTH DAKOTA THIS AFTERNOON AND TRACK EAST.
LARGE HAIL AND DAMAGING WINDS ARE POSSIBLE...AS WELL AS ISOLATED
TORNADOES.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY

NO SEVERE WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL BE NEEDED TODAY.

SERR

In the hours before

Local storm report, Jun 18, 8:50 PM CDT, 1 hour 7 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE ABERDEEN SD
850 PM CDT WED JUN 18 2014

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0848 PM     TSTM WND GST     3 SE ASHTON             44.96N  98.45W
06/18/2014  E60 MPH          SPINK              SD   PUBLIC

            WINDS ESTIMATED OVER 60 MPH. DOOR BLOWN IN ON BARN.

&&

EVENT NUMBER ABR1400455

FOWLE

Local storm report, Jun 18, 9:12 PM CDT, 45 minutes before

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Local storm report, Jun 18, 9:24 PM CDT, 33 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE ABERDEEN SD
924 PM CDT WED JUN 18 2014

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0905 PM     TSTM WND GST     5 S RICHMOND LAKE REC A 45.47N  98.62W
06/18/2014  M66 MPH          BROWN              SD   MESONET

            PEAK WIND MEASURED AT THE BROWN COUNTY LANDFILL.

&&

EVENT NUMBER ABR1400457

FOWLE

Local storm report, Jun 18, 9:25 PM CDT, 32 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE ABERDEEN SD
925 PM CDT WED JUN 18 2014

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0924 PM     TSTM WND GST     GROTON                  45.45N  98.10W
06/18/2014  E70 MPH          BROWN              SD   TRAINED SPOTTER

            60 TO 70 MPH WIND.

&&

EVENT NUMBER ABR1400458

KG

Local storm report, Jun 18, 9:33 PM CDT, 24 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE ABERDEEN SD
933 PM CDT WED JUN 18 2014

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0932 PM     HEAVY RAIN       14 NE ISABEL            45.54N 101.22W
06/18/2014  M3.61 INCH       CORSON             SD   CO-OP OBSERVER

&&

EVENT NUMBER ABR1400459

KG

Local storm report, Jun 18, 9:42 PM CDT, 15 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE ABERDEEN SD
942 PM CDT WED JUN 18 2014

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0924 PM     TSTM WND GST     ABERDEEN                45.47N  98.48W
06/18/2014  M54 MPH          BROWN              SD   ASOS

&&

EVENT NUMBER ABR1400460

KG

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 18, 7:31 PM CDT	Severe Thunderstorm Warning	ABR	McPherson	44 min
Jun 18, 8:05 PM CDT	Flash Flood Warning	ABR	Campbell, Edmunds, McPherson, Walworth	6 hr
Jun 18, 8:15 PM CDT	Severe Thunderstorm Warning	ABR	Edmunds, McPherson	45 min
Jun 18, 8:36 PM CDT	Severe Thunderstorm Warning	ABR	Spink	39 min
Jun 18, 8:49 PM CDT	Tornado Warning	ABR	Brown, Edmunds, McPherson	41 min
Jun 18, 8:57 PM CDT	Severe Thunderstorm Warning	ABR	Brown, Spink	63 min
Jun 18, 9:04 PM CDT	Flash Flood Warning	ABR	Brown, Spink	6 hr
Jun 18, 9:14 PM CDT	Severe Thunderstorm Warning	ABR	Clark, Day, Spink	46 min
Jun 18, 9:20 PM CDT	Severe Thunderstorm Warning	ABR	Brown, Day, Marshall, Spink	40 min
Jun 18, 11:25 PM CDT	Areal Flood Warning	ABR	Corson	24 hr
Jun 18, 11:47 PM CDT	Flash Flood Warning	ABR	Clark, Day, Spink	10 hr
Jun 19, 12:21 AM CDT	Flash Flood Warning	ABR	Day, Marshall, Roberts	9 hr
Jun 19, 1:33 AM CDT	Flash Flood Warning	ABR	Grant, Roberts	6 hr
Jun 19, 3:58 AM CDT	Flash Flood Warning	ABR	Deuel	12 hr
Jun 19, 4:06 AM CDT	Severe Thunderstorm Warning	ABR	Clark, Day, Hamlin, Spink	39 min
Jun 19, 5:04 AM CDT	Severe Thunderstorm Warning	ABR	Day	41 min
Jun 19, 6:03 AM CDT	River Flood Warning	ABR	Roberts	38 hr
Jun 19, 2:41 PM CDT	Severe Thunderstorm Warning	ABR	Stanley	49 min
Jun 19, 3:18 PM CDT	Severe Thunderstorm Warning	ABR	Dewey, Stanley, Sully	42 min
Jun 19, 4:22 PM CDT	River Flood Warning	ABR	Corson	43 hr
Jun 19, 4:54 PM CDT	Severe Thunderstorm Warning	ABR	Sully	36 min
Jun 19, 5:20 PM CDT	Severe Thunderstorm Warning	ABR	Faulk, Hand, Hyde, Potter, Sully	40 min
Jun 19, 5:58 PM CDT	Severe Thunderstorm Warning	ABR	Faulk, Hand, Potter, Spink	47 min

Nearby

Severe Thunderstorm Warnings in South Dakota, 2014 Every severe thunderstorm warning in 2014

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.