Alert archive / Kentucky / Mesoscale Discussions in 2017
Mesoscale Discussion 1765
The Storm Prediction Center issued this mesoscale discussion at Nov 5, 2017, 8:59 PM CST for Massac County, Illinois; 19 counties in Kentucky; Mississippi County, New Madrid County, Missouri. It was in force for 91 min.
The area
The outline as issued.
The facts
- Issued
- Nov 5, 2017, 8:59 PM CST (02:59 UTC)
- Expired
- Nov 5, 2017, 10:30 PM CST
- In force
- 91 min
- Issued by
- the Storm Prediction Center
All 22 counties
Massac County, IL, Ballard County, KY, Caldwell County, KY, Calloway County, KY, Carlisle County, KY, Christian County, KY, Crittenden County, KY, Daviess County, KY, Fulton County, KY, Graves County, KY, Hickman County, KY, Hopkins County, KY, Livingston County, KY, Lyon County, KY, Marshall County, KY, McCracken County, KY, McLean County, KY, Muhlenberg County, KY, Trigg County, KY, Webster County, KY, Mississippi County, MO, New Madrid County, MO
The radar
The Paducah radar (KPAH), 24 km from the middle of the area, began a volume at 02:59 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
Nashville Metro, TN (KBNA), launched 00:00Z, 3.0 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.
- Mixed-layer CAPE
- 24 J/kg
- Mixed-layer CIN
- -145 J/kg
- Mixed-layer LCL
- 1300 m above ground
- 0-6 km bulk shear
- 41 kt
- 0-1 km storm-relative helicity
- 176 m²/s²
- 0-3 km storm-relative helicity
- 302 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.2
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 |
|---|---|---|---|---|
| Nov 5, 6:07 PM CST | Mesoscale Discussion | SPC | Alexander, Edwards, Franklin, Gallatin, Hamilton, Hardin and 11 more | 113 min |
| Nov 6, 10:43 AM CST | Mesoscale Discussion | SPC | Alexander | 3 hr |
| Nov 5, 8:46 PM CST | Mesoscale Discussion | SPC | Boone, Bracken, Breckinridge, Campbell, Carroll, Gallatin and 11 more | 119 min |
Nearby
Mesoscale Discussions in Kentucky, 2017Mesoscale Discussions in Missouri, 2017Mesoscale Discussions in Illinois, 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.