Alert archive / Indiana / Mesoscale Discussions in 2013

Mesoscale Discussion 85

January 30, 201343 counties in Indiana; 5 counties in Ohio

The Storm Prediction Center issued this mesoscale discussion at Jan 30, 2013, 12:05 AM EST for 43 counties in Indiana; 5 counties in Ohio. It was in force for 85 min.

The area

The outline as issued.

The facts

Issued
Jan 30, 2013, 12:05 AM EST (05:05 UTC)
Expired
Jan 30, 2013, 1:30 AM EST
In force
85 min
Issued by
the Storm Prediction Center
All 48 counties

Adams County, IN, Allen County, IN, Blackford County, IN, Boone County, IN, Carroll County, IN, Cass County, IN, Clay County, IN, Clinton County, IN, DeKalb County, IN, Delaware County, IN, Elkhart County, IN, Fayette County, IN, Fulton County, IN, Grant County, IN, Hamilton County, IN, Hancock County, IN, Hendricks County, IN, Henry County, IN, Howard County, IN, Huntington County, IN, Jay County, IN, Johnson County, IN, Kosciusko County, IN, LaGrange County, IN, Madison County, IN, Marion County, IN, Marshall County, IN, Miami County, IN, Montgomery County, IN, Morgan County, IN, Noble County, IN, Owen County, IN, Putnam County, IN, Randolph County, IN, Rush County, IN, Shelby County, IN, Steuben County, IN, Tippecanoe County, IN, Tipton County, IN, Wabash County, IN, Wayne County, IN, Wells County, IN, Whitley County, IN, Defiance County, OH, Mercer County, OH, Paulding County, OH, Van Wert County, OH, Williams County, OH

The radar

The Indianapolis radar (KIND), 87 km from the middle of the area, began a volume at 05:07 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

Cncnati-Daytn, OH (KILN), launched 00:00Z, 5.1 hours before the alert went out and 208 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, Cncnati-Daytn, OH at 00:00Z on 2013-01-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 10 joules per kilogram.LCLLFCEL10008507005003002001001 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, Cncnati-Daytn, OH at 00:00Z on 2013-01-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 361 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
10 J/kg
Mixed-layer CIN
-280 J/kg
Mixed-layer LCL
784 m above ground
0-6 km bulk shear
58 kt
0-1 km storm-relative helicity
361 m²/s²
0-3 km storm-relative helicity
409 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
Jan 29, 7:08 PM ESTMesoscale DiscussionSPCClay, Daviess, Fountain, Gibson, Greene, Knox and 13 more2 hr
Jan 29, 10:19 PM ESTMesoscale DiscussionSPCBartholomew, Brown, Clark, Clay, Crawford, Daviess and 30 more86 min
Jan 29, 10:35 PM ESTTornado WatchSPCBartholomew, Boone, Brown, Carroll, Clark, Clay and 46 more6 hr
Jan 30, 1:45 AM ESTMesoscale DiscussionSPCDearborn, Fayette, Franklin, Ohio, Ripley, Switzerland and 2 more60 min
Jan 30, 3:33 AM ESTMesoscale DiscussionSPCBartholomew, Brown, Clark, Crawford, Dearborn, Decatur and 15 more57 min
Jan 30, 4:35 AM ESTTornado WatchSPCAdams, Brown, Clermont, Highland, Pike, Ross and 1 more4 hr
Jan 30, 5:51 AM ESTTornado WatchSPCGallia, Jackson, Lawrence, Meigs, Vinton7 hr
Jan 30, 7:38 AM ESTMesoscale DiscussionSPCAthens, Fairfield, Gallia, Hocking, Jackson, Lawrence and 8 more97 min
Jan 30, 8:31 AM ESTSevere Thunderstorm WatchSPCAthens, Belmont, Carroll, Columbiana, Guernsey, Harrison and 5 more4 hr

Nearby

Mesoscale Discussions in Indiana, 2013Mesoscale Discussions in Ohio, 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.