Alert archive / Indiana / Mesoscale Discussions in 2011
Mesoscale Discussion 256
The Storm Prediction Center issued this mesoscale discussion at Mar 23, 2011, 1:12 PM EDT for 12 counties in Indiana; 11 counties in Ohio. It was in force for 93 min.
The area
The outline as issued.
The facts
- Issued
- Mar 23, 2011, 1:12 PM EDT (17:12 UTC)
- Expired
- Mar 23, 2011, 2:45 PM EDT
- In force
- 93 min
- Issued by
- the Storm Prediction Center
All 23 counties
Allen County, IN, DeKalb County, IN, Elkhart County, IN, Fulton County, IN, Huntington County, IN, Kosciusko County, IN, LaGrange County, IN, Marshall County, IN, Noble County, IN, Steuben County, IN, Wabash County, IN, Whitley County, IN, Defiance County, OH, Fulton County, OH, Hancock County, OH, Henry County, OH, Paulding County, OH, Putnam County, OH, Sandusky County, OH, Seneca County, OH, Van Wert County, OH, Williams County, OH, Wood County, OH
The radar
The Northern Indiana radar (KIWX), 101 km from the middle of the area, began a volume at 17:11 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
Detroit, MI (KDTX), launched 12:00Z, 5.2 hours before the alert went out and 189 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
- 1 J/kg
- Mixed-layer CIN
- 0 J/kg
- Mixed-layer LCL
- 507 m above ground
- 0-6 km bulk shear
- 81 kt
- 0-1 km storm-relative helicity
- 359 m²/s²
- 0-3 km storm-relative helicity
- 576 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 23, 12:02 PM EDT | Mesoscale Discussion | SPC | Bartholomew, Brown, Clark, Crawford, Dearborn, Decatur and 25 more | 88 min |
| Mar 23, 1:13 PM EDT | Tornado Watch | SPC | Bartholomew, Clark, Crawford, Dearborn, Decatur, Dubois and 24 more | 7 hr |
| Mar 23, 4:20 PM EDT | Mesoscale Discussion | SPC | Benton, Blackford, Boone, Carroll, Cass, Clinton and 25 more | 85 min |
| Mar 23, 7:37 PM EDT | Mesoscale Discussion | SPC | Boone, Clinton, Delaware, Fayette, Fountain, Franklin and 15 more | 83 min |
| Mar 23, 3:54 PM EDT | Mesoscale Discussion | SPC | Adams, Athens, Belmont, Brown, Carroll, Clark and 38 more | 96 min |
Nearby
Mesoscale Discussions in Indiana, 2011Mesoscale Discussions in Ohio, 2011Every mesoscale discussion in 2011
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.