Alert archive / Kentucky / Severe Thunderstorm Watches in 2016
Severe Thunderstorm Watch 118
The Storm Prediction Center issued this severe thunderstorm watch at Apr 27, 2016, 8:24 PM EDT for 8 counties in Indiana; 22 counties in Kentucky. It was in force for 2 hr.
The area
The outline as issued.
The facts
- Issued
- Apr 27, 2016, 8:24 PM EDT (00:24 UTC)
- Expired
- Apr 27, 2016, 10:53 PM EDT
- In force
- 2 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 1.5 in
- Strongest gust expected
- 60 kt
All 30 counties
Clark County, IN, Crawford County, IN, Floyd County, IN, Harrison County, IN, Jefferson County, IN, Orange County, IN, Scott County, IN, Washington County, IN, Adair County, KY, Allen County, KY, Barren County, KY, Bullitt County, KY, Cumberland County, KY, Green County, KY, Hardin County, KY, Hart County, KY, Henry County, KY, Jefferson County, KY, Larue County, KY, Marion County, KY, Meade County, KY, Metcalfe County, KY, Monroe County, KY, Nelson County, KY, Oldham County, KY, Shelby County, KY, Spencer County, KY, Taylor County, KY, Trimble County, KY, Washington County, KY
The radar
The Louisville radar (KLVX), 11 km from the middle of the area, began a volume at 00:24 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.
What SPC expected
The probabilities SPC published with the watch, for the watch area over its life.
- Two or more tornadoes
- 10%
- One or more EF2 to EF5 tornadoes
- 2%
- Ten or more severe wind reports
- 30%
- One or more gusts of 65 knots or more
- 10%
- Ten or more severe hail reports
- 30%
- One or more hailstones of 2 inches or more
- 10%
- Six or more combined severe hail and wind reports
- 60%
Warnings issued inside it
2 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 27, 8:25 PM EDT | Severe Thunderstorm Warning | LMK | Harrison | 50 min |
| Apr 27, 8:25 PM EDT | Severe Thunderstorm Warning | LMK | Edmonson, Grayson, Hardin, Hart | 35 min |
The nearest sounding before it
Nashville Metro, TN (KBNA), launched 00:00Z, 0.4 hours before the alert went out and 210 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
- 279 J/kg
- Mixed-layer CIN
- -35 J/kg
- Mixed-layer LCL
- 1503 m above ground
- 0-6 km bulk shear
- 30 kt
- 0-1 km storm-relative helicity
- 87 m²/s²
- 0-3 km storm-relative helicity
- 99 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.4
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 28, 3:53 PM EDT | Mesoscale Discussion | SPC | Decatur, Fayette, Franklin, Hamilton, Hancock, Henry and 6 more | 97 min |
| Apr 28, 3:56 PM EDT | Mesoscale Discussion | SPC | Boyd, Greenup, Lawrence, Martin | 64 min |
Nearby
Severe Thunderstorm Watches in Kentucky, 2016Severe Thunderstorm Watches in Indiana, 2016Every severe thunderstorm watch in 2016
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.