Alert archive / South Dakota / Mesoscale Discussions in 2005

Mesoscale Discussion 1801

July 20, 20057 counties in South Dakota

The Storm Prediction Center issued this mesoscale discussion at Jul 20, 2005, 4:12 PM MDT for 7 counties in South Dakota. It was in force for 93 min.

The area

The outline as issued.

The facts

Issued: Jul 20, 2005, 4:12 PM MDT (22:12 UTC)
Expired: Jul 20, 2005, 5:45 PM MDT
In force: 93 min
Issued by: the Storm Prediction Center

Counties Bennett County, SD, Custer County, SD, Haakon County, SD, Jackson County, SD, Meade County, SD, Oglala Lakota County, SD, Pennington County, SD

The radar

The Rapid City radar (KUDX), 59 km from the middle of the area, began a volume at 22:16 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.

Severe Thunderstorm Watch 652Jul 20, 5:20 PM MDT

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
Jul 19, 6:39 PM MDT	Mesoscale Discussion	SPC	Hughes, Jones, Lyman, Mellette, Sully, Todd and 1 more	2 hr
Jul 19, 10:18 PM MDT	Mesoscale Discussion	SPC	Aurora, Beadle, Brookings, Clark, Clay, Codington and 17 more	87 min
Jul 20, 12:25 AM MDT	Severe Thunderstorm Watch	SPC	Brookings, Codington, Deuel, Grant, Hamlin, Hanson and 8 more	6 hr
Jul 20, 5:20 PM MDT	Severe Thunderstorm Watch	SPC	Bennett, Brule, Buffalo, Gregory, Jackson, Jones and 5 more	5 hr

Nearby

Mesoscale Discussions in South Dakota, 2005 Every mesoscale discussion in 2005

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.