Alert archive / Iowa / Mesoscale Discussions in 2013
Mesoscale Discussion 1085
The Storm Prediction Center issued this mesoscale discussion at Jun 14, 2013, 9:02 PM CDT for 22 counties in Iowa; Putnam County, Worth County, Missouri. It was in force for 58 min.
The area
The outline as issued.
The facts
- Issued
- Jun 14, 2013, 9:02 PM CDT (02:02 UTC)
- Expired
- Jun 14, 2013, 10:00 PM CDT
- In force
- 58 min
- Issued by
- the Storm Prediction Center
- Chance of a watch
- 60%
All 24 counties
Adair County, IA, Adams County, IA, Appanoose County, IA, Audubon County, IA, Boone County, IA, Carroll County, IA, Clarke County, IA, Dallas County, IA, Decatur County, IA, Greene County, IA, Guthrie County, IA, Jasper County, IA, Lucas County, IA, Madison County, IA, Marion County, IA, Monroe County, IA, Polk County, IA, Ringgold County, IA, Story County, IA, Union County, IA, Warren County, IA, Wayne County, IA, Putnam County, MO, Worth County, MO
The radar
The Des Moines radar (KDMX), 70 km from the middle of the area, began a volume at 02:05 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.
The nearest sounding before it
Omaha, NE (KOAX), launched 00:00Z, 2.0 hours before the alert went out and 201 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.
- Mixed-layer CAPE
- 3825 J/kg
- Mixed-layer CIN
- -16 J/kg
- Mixed-layer LCL
- 1255 m above ground
- 0-6 km bulk shear
- 33 kt
- 0-1 km storm-relative helicity
- 145 m²/s²
- 0-3 km storm-relative helicity
- 467 m²/s²
- Significant tornado parameter
- 4.2
- Supercell composite
- 29.6
The text
As transmitted, in the capitals the NWS used until 2016.
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</html>SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 14, 9:16 PM CDT | Severe Thunderstorm Watch | SPC | Adair, Adams, Appanoose, Audubon, Boone, Carroll and 19 more | 5 hr |
| Jun 14, 11:03 PM CDT | Mesoscale Discussion | SPC | Clarke, Decatur, Lucas, Ringgold, Warren, Wayne | 87 min |
| Jun 15, 7:40 AM CDT | Mesoscale Discussion | SPC | Buena Vista, Cherokee, Clay, Dickinson, Emmet, Ida and 8 more | 2 hr |
| Jun 15, 10:54 AM CDT | Mesoscale Discussion | SPC | Allamakee, Benton, Black Hawk, Boone, Bremer, Buchanan and 28 more | 66 min |
| Jun 15, 3:56 PM CDT | Mesoscale Discussion | SPC | Appanoose, Davis, Decatur, Des Moines, Henry, Jefferson and 6 more | 2 hr |
| Jun 15, 12:37 PM CDT | Mesoscale Discussion | SPC | Barry, Barton, Bates, Benton, Cass, Cedar and 15 more | 113 min |
Nearby
Mesoscale Discussions in Iowa, 2013Mesoscale Discussions in Missouri, 2013Every mesoscale discussion in 2013
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.