Alert archive / Iowa / Mesoscale Discussions in 2007

Mesoscale Discussion 1648

August 4, 200746 counties in Iowa; 19 counties in Nebraska; Union County, South Dakota

The Storm Prediction Center issued this mesoscale discussion at Aug 4, 2007, 6:09 PM CDT for 46 counties in Iowa; 19 counties in Nebraska; Union County, South Dakota. It was in force for 66 min.

The area

The outline as issued.

The facts

Issued: Aug 4, 2007, 6:09 PM CDT (23:09 UTC)
Expired: Aug 4, 2007, 7:15 PM CDT
In force: 66 min
Issued by: the Storm Prediction Center

All 66 counties

Adair County, IA, Adams County, IA, Appanoose County, IA, Audubon County, IA, Boone County, IA, Buena Vista County, IA, Calhoun County, IA, Carroll County, IA, Cass County, IA, Cherokee County, IA, Clarke County, IA, Crawford County, IA, Dallas County, IA, Davis County, IA, Decatur County, IA, Fremont County, IA, Greene County, IA, Guthrie County, IA, Harrison County, IA, Ida County, IA, Jasper County, IA, Lucas County, IA, Madison County, IA, Mahaska County, IA, Marion County, IA, Mills County, IA, Monona County, IA, Monroe County, IA, Montgomery County, IA, Page County, IA, Palo Alto County, IA, Plymouth County, IA, Pocahontas County, IA, Polk County, IA, Pottawattamie County, IA, Ringgold County, IA, Sac County, IA, Shelby County, IA, Story County, IA, Taylor County, IA, Union County, IA, Wapello County, IA, Warren County, IA, Wayne County, IA, Webster County, IA, Woodbury County, IA, Burt County, NE, Cass County, NE, Cedar County, NE, Colfax County, NE, Cuming County, NE, Dakota County, NE, Dixon County, NE, Dodge County, NE, Douglas County, NE, Knox County, NE, Madison County, NE, Otoe County, NE, Pierce County, NE, Sarpy County, NE, Saunders County, NE, Stanton County, NE, Thurston County, NE, Washington County, NE, Wayne County, NE, Union County, SD

The radar

The Omaha radar (KOAX), 77 km from the middle of the area, began a volume at 23:10 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 564Aug 4, 7:40 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
Aug 4, 1:49 AM CDT	Mesoscale Discussion	SPC	Buena Vista, Cherokee, Clay, Dickinson, Ida, Lyon and 7 more	86 min
Aug 4, 1:01 PM CDT	Mesoscale Discussion	SPC	Des Moines, Henry, Jefferson, Lee, Louisa, Van Buren	2 hr
Aug 4, 2:51 PM CDT	Mesoscale Discussion	SPC	Audubon, Boone, Buena Vista, Calhoun, Carroll, Cherokee and 16 more	114 min
Aug 4, 3:55 PM CDT	Severe Thunderstorm Watch	SPC	Adair, Adams, Appanoose, Audubon, Boone, Buena Vista and 50 more	6 hr
Aug 3, 8:02 PM CDT	Mesoscale Discussion	SPC	Antelope, Blaine, Boyd, Brown, Cherry, Garfield and 8 more	118 min
Aug 4, 5:06 PM CDT	Mesoscale Discussion	SPC	Chase, Custer, Dawson, Dundy, Frontier, Garfield and 12 more	114 min
Aug 4, 5:46 PM CDT	Severe Thunderstorm Watch	SPC	Blaine, Buffalo, Custer, Dawson, Frontier, Garfield and 12 more	4 hr

Nearby

Mesoscale Discussions in Iowa, 2007 Mesoscale Discussions in Nebraska, 2007 Mesoscale Discussions in South Dakota, 2007 Every mesoscale discussion in 2007

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.