Alert archive / Indiana / Mesoscale Discussions in 2017

Mesoscale Discussion 1761

November 5, 201734 counties in Indiana; 9 counties in Kentucky; 24 counties in Ohio

The Storm Prediction Center issued this mesoscale discussion at Nov 5, 2017, 5:58 PM EST for 34 counties in Indiana; 9 counties in Kentucky; 24 counties in Ohio. It was in force for 62 min.

The area

The outline as issued.

The facts

Issued
Nov 5, 2017, 5:58 PM EST (22:58 UTC)
Expired
Nov 5, 2017, 7:00 PM EST
In force
62 min
Issued by
the Storm Prediction Center
All 67 counties

Bartholomew County, IN, Brown County, IN, Clark County, IN, Clay County, IN, Crawford County, IN, Dearborn County, IN, Decatur County, IN, Fayette County, IN, Floyd County, IN, Franklin County, IN, Greene County, IN, Hancock County, IN, Harrison County, IN, Henry County, IN, Jackson County, IN, Jefferson County, IN, Jennings County, IN, Johnson County, IN, Lawrence County, IN, Marion County, IN, Martin County, IN, Monroe County, IN, Morgan County, IN, Ohio County, IN, Orange County, IN, Owen County, IN, Ripley County, IN, Rush County, IN, Scott County, IN, Shelby County, IN, Switzerland County, IN, Union County, IN, Washington County, IN, Wayne County, IN, Boone County, KY, Campbell County, KY, Carroll County, KY, Gallatin County, KY, Grant County, KY, Henry County, KY, Kenton County, KY, Oldham County, KY, Trimble County, KY, Butler County, OH, Champaign County, OH, Clark County, OH, Clermont County, OH, Clinton County, OH, Darke County, OH, Delaware County, OH, Fairfield County, OH, Fayette County, OH, Franklin County, OH, Greene County, OH, Hamilton County, OH, Highland County, OH, Knox County, OH, Licking County, OH, Madison County, OH, Miami County, OH, Montgomery County, OH, Morrow County, OH, Pickaway County, OH, Preble County, OH, Ross County, OH, Union County, OH, Warren County, OH

The radar

The Cincinnati radar (KILN), 85 km from the middle of the area, began a volume at 23:00 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

Cncnati-Daytn, OH (KILN), launched 12:00Z, 11.0 hours before the alert went out and 87 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 12:00Z on 2017-11-05Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 214 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 12:00Z on 2017-11-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 187 square meters per square second.19395878Sfc1 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
214 J/kg
Mixed-layer CIN
-21 J/kg
Mixed-layer LCL
522 m above ground
0-6 km bulk shear
29 kt
0-1 km storm-relative helicity
187 m²/s²
0-3 km storm-relative helicity
209 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.2

Open this sounding in Storm Lab

The text

As transmitted.

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SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Nov 5, 7:04 AM ESTMesoscale DiscussionSPCBenton, Boone, Carroll, Cass, Clay, Clinton and 15 more2 hr
Nov 5, 11:48 AM ESTMesoscale DiscussionSPCBartholomew, Brown, Daviess, Dearborn, Decatur, Greene and 8 more57 min
Nov 5, 12:08 PM ESTTornado WatchSPCAdams, Bartholomew, Blackford, Boone, Brown, Carroll and 44 more7 hr
Nov 5, 12:09 PM ESTMesoscale DiscussionSPCFountain, Vermillion, Vigo, Warren66 min
Nov 5, 1:36 PM ESTMesoscale DiscussionSPCBoone, Carroll, Clinton, Grant, Hamilton, Howard and 4 more54 min
Nov 5, 3:51 PM ESTMesoscale DiscussionSPCGibson, Knox, Posey, Sullivan, Vanderburgh, Vigo and 1 more114 min
Nov 5, 4:50 PM ESTTornado WatchSPCGibson, Pike, Posey, Spencer, Vanderburgh, Warrick6 hr
Nov 5, 6:31 PM ESTSevere Thunderstorm WatchSPCBartholomew, Brown, Clark, Crawford, Daviess, Dearborn and 20 more6 hr
Nov 5, 11:29 AM ESTMesoscale DiscussionSPCAshtabula, Cuyahoga, Defiance, Erie, Fulton, Geauga and 14 more91 min
Nov 5, 2:29 PM ESTMesoscale DiscussionSPCAuglaize, Mercer31 min
Nov 5, 3:57 PM ESTMesoscale DiscussionSPCAllen, Ashland, Auglaize, Crawford, Hancock, Hardin and 9 more63 min
Nov 5, 4:51 PM ESTMesoscale DiscussionSPCCarroll, Columbiana, Geauga, Mahoning, Portage, Stark and 2 more114 min
Nov 5, 5:28 PM ESTSevere Thunderstorm WatchSPCAshtabula, Belmont, Carroll, Columbiana, Coshocton, Geauga and 13 more5 hr

Nearby

Mesoscale Discussions in Indiana, 2017Mesoscale Discussions in Ohio, 2017Mesoscale Discussions in Kentucky, 2017Every mesoscale discussion in 2017

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.