Alert archive / Indiana / Mesoscale Discussions in 2020
Mesoscale Discussion 686
The Storm Prediction Center issued this mesoscale discussion at May 23, 2020, 4:14 PM EDT for 17 counties in Indiana; 16 counties in Kentucky; 10 counties in Ohio. It was in force for 61 min.
The area
The outline as issued.
The facts
- Issued
- May 23, 2020, 4:14 PM EDT (20:14 UTC)
- Expired
- May 23, 2020, 5:15 PM EDT
- In force
- 61 min
- Issued by
- the Storm Prediction Center
- Concerning
- Severe potential...watch unlikely
- Chance of a watch
- 20%
All 43 counties
Bartholomew County, IN, Brown County, IN, Dearborn County, IN, Decatur County, IN, Fayette County, IN, Franklin County, IN, Henry County, IN, Jefferson County, IN, Jennings County, IN, Johnson County, IN, Ohio County, IN, Ripley County, IN, Rush County, IN, Shelby County, IN, Switzerland County, IN, Union County, IN, Wayne County, IN, Boone County, KY, Bracken County, KY, Campbell County, KY, Carroll County, KY, Fleming County, KY, Gallatin County, KY, Grant County, KY, Harrison County, KY, Kenton County, KY, Lewis County, KY, Mason County, KY, Nicholas County, KY, Owen County, KY, Pendleton County, KY, Robertson County, KY, Trimble County, KY, Adams County, OH, Brown County, OH, Butler County, OH, Clermont County, OH, Clinton County, OH, Hamilton County, OH, Highland County, OH, Montgomery County, OH, Preble County, OH, Warren County, OH
The radar
The Cincinnati radar (KILN), 94 km from the middle of the area, began a volume at 20:15 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 12:00Z, 8.2 hours before the alert went out and 96 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
- 9 J/kg
- Mixed-layer CIN
- -66 J/kg
- Mixed-layer LCL
- 1176 m above ground
- 0-6 km bulk shear
- 15 kt
- 0-1 km storm-relative helicity
- 48 m²/s²
- 0-3 km storm-relative helicity
- 141 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
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</html>SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 23, 1:33 PM EDT | Tornado Watch | SPC | Benton, Jasper, Lake, Newton, Porter | 8 hr |
| May 23, 3:51 PM EDT | Mesoscale Discussion | SPC | Benton, Jasper, Lake, Newton, Porter, Warren and 1 more | 84 min |
| May 23, 5:57 PM EDT | Tornado Watch | SPC | Cass, Fulton, LaPorte, Marshall, Miami, Pulaski and 3 more | 4 hr |
Nearby
Mesoscale Discussions in Indiana, 2020Mesoscale Discussions in Kentucky, 2020Mesoscale Discussions in Ohio, 2020Every mesoscale discussion in 2020
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.