Alert archive / South Dakota / Mesoscale Discussions in 2011

Mesoscale Discussion 1326

June 20, 201110 counties in South Dakota

The Storm Prediction Center issued this mesoscale discussion at Jun 20, 2011, 4:33 PM CDT for 10 counties in South Dakota. It was in force for 87 min.

The area

The outline as issued.

The facts

Issued: Jun 20, 2011, 4:33 PM CDT (21:33 UTC)
Expired: Jun 20, 2011, 6:00 PM CDT
In force: 87 min
Issued by: the Storm Prediction Center

Counties Brule County, SD, Buffalo County, SD, Gregory County, SD, Hand County, SD, Hughes County, SD, Hyde County, SD, Lyman County, SD, Potter County, SD, Sully County, SD, Walworth County, SD

The radar

The Aberdeen radar (KABR), 163 km from the middle of the area, began a volume at 21:35 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 watches that followed

Watches SPC issued over any of the same counties within four hours of this discussion.

Tornado Watch 526Jun 20, 6:55 PM CDT

The text

As transmitted, in the capitals the NWS used until 2016.

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SPC that day

Everything else SPC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 20, 6:17 PM CDT	Mesoscale Discussion	SPC	Clay, Union	58 min
Jun 20, 6:53 PM CDT	Tornado Watch	SPC	Aurora, Bon Homme, Brule, Buffalo, Charles Mix, Clay and 13 more	6 hr

Nearby

Mesoscale Discussions in South Dakota, 2011 Every mesoscale discussion in 2011

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive.