Alert archive / South Dakota / Special Weather Statements in 2021

Special Weather Statement, NWS Aberdeen, SD

June 13, 2021Sully County, South Dakota

NWS Aberdeen, SD issued this special weather statement at Jun 13, 2021, 8:45 AM CDT for Sully County, South Dakota. It was in force for 45 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Jun 13, 2021, 8:45 AM CDT (13:45 UTC)
Expired: Jun 13, 2021, 9:30 AM CDT
In force: 45 min
Issued by: NWS Aberdeen, SD

County Sully County, SD

The radar

The Aberdeen radar (KABR), 173 km from the middle of the area, began a volume at 13:47 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, 1.8 hours before the alert went out and 151 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 2305 m above ground
0-6 km bulk shear: 51 kt
0-1 km storm-relative helicity: 444 m²/s²
0-3 km storm-relative helicity: 418 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

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What forecasters said that day

The local office's own words before this special weather statement 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 special weather statement went out at Jun 13, 6:26 AM CDT, 2 hours 19 minutes earlier.

Area forecast discussion, Jun 13, 6:26 AM CDT, 2 hours 19 minutes before

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Hazardous weather outlook, Jun 13, 3:40 AM CDT, 5 hours 5 minutes before

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In the hours before

Special weather statement, Jun 13, 8:45 AM CDT, 0 minutes before

Special Weather Statement
National Weather Service Aberdeen SD
845 AM CDT Sun Jun 13 2021

SDZ034-035-131430-
Hughes SD-Sully SD-
845 AM CDT Sun Jun 13 2021

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHERN SULLY AND NORTH CENTRAL
HUGHES COUNTIES UNTIL 930 AM CDT...

At 845 AM CDT, Doppler radar was tracking a strong thunderstorm 8
miles southwest of Sully Lake, or 13 miles west of Onida, moving
southeast at 25 mph.

Penny size hail and winds in excess of 30 mph will be possible with
this storm.

Locations impacted include...
Onida, Blunt and Sully Lake.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

To report severe weather, contact your nearest law enforcement
agency. They will relay your report to the National Weather Service
office in Aberdeen.

&&

LAT...LON 4458 10047 4466 10054 4475 10036 4476 10015
      4465 9984 4437 10009
TIME...MOT...LOC 1345Z 295DEG 20KT 4463 10031

TMT

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 13, 1:15 PM CDT	Special Weather Statement	ABR	Potter	30 min
Jun 13, 1:19 PM CDT	Special Weather Statement	ABR	Sully	26 min
Jun 13, 1:45 PM CDT	Special Weather Statement	ABR	Sully	30 min
Jun 13, 2:04 PM CDT	Special Weather Statement	ABR	Dewey	26 min

Nearby

Special Weather Statements in South Dakota, 2021 Every special weather statement in 2021

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.