Alert archive / Kentucky / Mesoscale Discussions in 2020
Mesoscale Discussion 259
The Storm Prediction Center issued this mesoscale discussion at Mar 28, 2020, 8:38 PM EDT for 5 counties in Indiana; 19 counties in Kentucky. It was in force for 67 min.
The area
The outline as issued.
The facts
- Issued
- Mar 28, 2020, 8:38 PM EDT (00:38 UTC)
- Expired
- Mar 28, 2020, 9:45 PM EDT
- In force
- 67 min
- Issued by
- the Storm Prediction Center
All 24 counties
Crawford County, IN, Floyd County, IN, Harrison County, IN, Perry County, IN, Spencer County, IN, Breckinridge County, KY, Bullitt County, KY, Butler County, KY, Caldwell County, KY, Christian County, KY, Daviess County, KY, Grayson County, KY, Hancock County, KY, Hardin County, KY, Hopkins County, KY, Jefferson County, KY, Logan County, KY, McLean County, KY, Meade County, KY, Muhlenberg County, KY, Ohio County, KY, Spencer County, KY, Todd County, KY, Webster County, KY
The radar
The Ft Campbell radar (KHPX), 95 km from the middle of the area, began a volume at 00:39 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
Nashville Metro, TN (KBNA), launched 00:00Z, 0.6 hours before the alert went out and 162 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
- 251 J/kg
- Mixed-layer CIN
- -107 J/kg
- Mixed-layer LCL
- 1430 m above ground
- 0-6 km bulk shear
- 71 kt
- 0-1 km storm-relative helicity
- 132 m²/s²
- 0-3 km storm-relative helicity
- 206 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 1.5
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 |
|---|---|---|---|---|
| Mar 28, 9:15 PM EDT | Tornado Watch | SPC | Clark, Crawford, Dubois, Floyd, Harrison, Jefferson and 4 more | 6 hr |
| Mar 28, 10:23 PM EDT | Mesoscale Discussion | SPC | Bartholomew, Blackford, Brown, Dearborn, Decatur, Delaware and 20 more | 97 min |
| Mar 28, 11:34 PM EDT | Mesoscale Discussion | SPC | Dearborn, Ohio, Switzerland | 86 min |
| Mar 29, 2:50 AM EDT | Mesoscale Discussion | SPC | Clinton, Wayne | 85 min |
Nearby
Mesoscale Discussions in Kentucky, 2020Mesoscale Discussions in Indiana, 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.