Alert archive / Indiana / Mesoscale Discussions in 2005

Mesoscale Discussion 2230

September 19, 200520 counties in Indiana; 10 counties in Michigan; 13 counties in Ohio

The Storm Prediction Center issued this mesoscale discussion at Sep 19, 2005, 11:28 AM EST for 20 counties in Indiana; 10 counties in Michigan; 13 counties in Ohio. It was in force for 92 min.

The area

The outline as issued.

The facts

Issued
Sep 19, 2005, 11:28 AM EST (16:28 UTC)
Expired
Sep 19, 2005, 1:00 PM EST
In force
92 min
Issued by
the Storm Prediction Center
All 43 counties

Adams County, IN, Allen County, IN, Blackford County, IN, DeKalb County, IN, Elkhart County, IN, Fulton County, IN, Grant County, IN, Howard County, IN, Huntington County, IN, Jay County, IN, Kosciusko County, IN, LaGrange County, IN, Marshall County, IN, Miami County, IN, Noble County, IN, Saint Joseph County, IN, Steuben County, IN, Wabash County, IN, Wells County, IN, Whitley County, IN, Branch County, MI, Calhoun County, MI, Cass County, MI, Hillsdale County, MI, Jackson County, MI, Kalamazoo County, MI, Lenawee County, MI, Monroe County, MI, Saint Joseph County, MI, Washtenaw County, MI, Allen County, OH, Auglaize County, OH, Defiance County, OH, Fulton County, OH, Hancock County, OH, Henry County, OH, Lucas County, OH, Mercer County, OH, Paulding County, OH, Putnam County, OH, Van Wert County, OH, Williams County, OH, Wood County, OH

The radar

The Northern Indiana radar (KIWX), 50 km from the middle of the area, began a volume at 16:30 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

Detroit, MI (KDTX), launched 12:00Z, 4.5 hours before the alert went out and 196 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.

Skew-T log-pSkew-T log-p diagram, Detroit, MI at 12:00Z on 2005-09-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Detroit, MI at 12:00Z on 2005-09-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 17 square meters per square second.1939587897Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1353 m above ground
0-6 km bulk shear
32 kt
0-1 km storm-relative helicity
17 m²/s²
0-3 km storm-relative helicity
129 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

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.

IssuedProductOfficeCountiesLasted
Sep 19, 3:02 PM ESTMesoscale DiscussionSPCBenton, Carroll, Jasper, Lake, Newton, Porter and 5 more88 min
Sep 19, 3:25 PM ESTSevere Thunderstorm WatchSPCAdams, Allen, Benton, Blackford, Boone, Carroll and 33 more6 hr
Sep 19, 5:54 PM ESTMesoscale DiscussionSPCAdams, Bartholomew, Blackford, Boone, Brown, Clay and 49 more96 min
Sep 19, 4:18 PM ESTMesoscale DiscussionSPCBarry, Calhoun, Clare, Clinton, Eaton, Gratiot and 21 more117 min

Nearby

Mesoscale Discussions in Indiana, 2005Mesoscale Discussions in Ohio, 2005Mesoscale Discussions in Michigan, 2005Every mesoscale discussion in 2005

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.