Alert archive / Missouri / Mesoscale Discussions in 2009

Mesoscale Discussion 843

May 15, 200912 counties in Missouri

The Storm Prediction Center issued this mesoscale discussion at May 15, 2009, 10:39 PM CDT for 12 counties in Missouri. It was in force for 2 hr.

The area

The outline as issued.

The facts

Issued: May 15, 2009, 10:39 PM CDT (03:39 UTC)
Expired: May 16, 2009, 12:45 AM CDT
In force: 2 hr
Issued by: the Storm Prediction Center

Counties Crawford County, MO, Dade County, MO, Dent County, MO, Iron County, MO, Laclede County, MO, Madison County, MO, Polk County, MO, Reynolds County, MO, Saint Francois County, MO, Sainte Genevieve County, MO, Texas County, MO, Washington County, MO

The radar

The Springfield radar (KSGF), 97 km from the middle of the area, began a volume at 03:43 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 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
May 15, 8:14 PM CDT	Mesoscale Discussion	SPC	Saint Louis, City of Saint Louis	2 hr
May 15, 10:55 PM CDT	Mesoscale Discussion	SPC	Barry, Christian, Greene, Lawrence, McDonald, Newton and 1 more	2 hr

Nearby

Mesoscale Discussions in Missouri, 2009 Every mesoscale discussion in 2009

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.