Alert archive / Iowa / Mesoscale Discussions in 2014
Mesoscale Discussion 238
The Storm Prediction Center issued this mesoscale discussion at Mar 31, 2014, 6:43 PM CDT for 4 states. It was in force for 3 hr.
The area
The outline as issued.
The facts
- Issued
- Mar 31, 2014, 6:43 PM CDT (23:43 UTC)
- Expired
- Mar 31, 2014, 9:15 PM CDT
- In force
- 3 hr
- Issued by
- the Storm Prediction Center
- Chance of a watch
- 20%
All 63 counties
Allamakee County, IA, Benton County, IA, Black Hawk County, IA, Bremer County, IA, Buchanan County, IA, Cedar County, IA, Chickasaw County, IA, Clayton County, IA, Davis County, IA, Delaware County, IA, Des Moines County, IA, Fayette County, IA, Henry County, IA, Howard County, IA, Iowa County, IA, Jefferson County, IA, Johnson County, IA, Jones County, IA, Keokuk County, IA, Lee County, IA, Linn County, IA, Louisa County, IA, Mahaska County, IA, Mitchell County, IA, Muscatine County, IA, Poweshiek County, IA, Tama County, IA, Van Buren County, IA, Wapello County, IA, Washington County, IA, Winneshiek County, IA, Anoka County, MN, Benton County, MN, Carver County, MN, Dakota County, MN, Dodge County, MN, Fillmore County, MN, Goodhue County, MN, Hennepin County, MN, Houston County, MN, Mower County, MN, Olmsted County, MN, Ramsey County, MN, Rice County, MN, Scott County, MN, Sherburne County, MN, Stearns County, MN, Steele County, MN, Wabasha County, MN, Washington County, MN, Winona County, MN, Wright County, MN, Adair County, MO, Clark County, MO, Knox County, MO, Lewis County, MO, Macon County, MO, Marion County, MO, Monroe County, MO, Schuyler County, MO, Scotland County, MO, Shelby County, MO, Pierce County, WI
The radar
The Des Moines radar (KDMX), 143 km from the middle of the area, began a volume at 23:45 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 nearest sounding before it
Davenport, (KDVN), launched 12:00Z, 11.7 hours before the alert went out and 197 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 2175 m above ground
- 0-6 km bulk shear
- 35 kt
- 0-1 km storm-relative helicity
- 104 m²/s²
- 0-3 km storm-relative helicity
- 175 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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 |
|---|---|---|---|---|
| Mar 31, 3:52 PM CDT | Mesoscale Discussion | SPC | Boone, Butler, Cerro Gordo, Clarke, Dallas, Decatur and 21 more | 113 min |
| Mar 31, 6:18 AM CDT | Mesoscale Discussion | SPC | Norman, Polk | 6 hr |
| Mar 31, 12:08 PM CDT | Mesoscale Discussion | SPC | Kittson, Marshall, Norman, Pennington, Polk, Red Lake and 1 more | 6 hr |
| Mar 31, 3:05 PM CDT | Mesoscale Discussion | SPC | Chippewa, Cottonwood, Lac qui Parle, Lincoln, Lyon, Murray and 5 more | 115 min |
| Mar 31, 3:49 PM CDT | Mesoscale Discussion | SPC | Becker, Big Stone, Clay, Traverse, Wilkin | 5 hr |
| Mar 31, 5:15 PM CDT | Mesoscale Discussion | SPC | Barry, Barton, Bates, Benton, Cedar, Cooper and 18 more | 3 hr |
Nearby
Mesoscale Discussions in Iowa, 2014Mesoscale Discussions in Minnesota, 2014Mesoscale Discussions in Missouri, 2014Every mesoscale discussion in 2014
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.