Alert archive / Kentucky / Severe Thunderstorm Warnings in 1999
Severe Thunderstorm Warning 30, NWS Jackson, KY
NWS Jackson, KY issued this severe thunderstorm warning at May 6, 1999, 12:44 AM EDT for McCreary County, Pulaski County, Whitley County, Kentucky. It was in force for 41 min. 3 reports came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- May 6, 1999, 12:44 AM EDT (04:44 UTC)
- Expired
- May 6, 1999, 1:25 AM EDT
- In force
- 41 min
- Issued by
- NWS Jackson, KY
- Area
- Whole counties
Counties McCreary County, KY, Pulaski County, KY, Whitley County, KY
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| May 6, 1:00 AM EDT | Thunderstorm Wind | Somerset, KY | Trees down. |
| May 6, 1:20 AM EDT | Thunderstorm Wind | Williamsburg, KY | Several large trees down. |
| May 6, 1:30 AM EDT | Thunderstorm Wind | Corbin, KY | Tree blown down onto home and car. |
NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.
The nearest sounding before it
Nashville Metro, TN (KBNA), launched 00:00Z, 4.7 hours before the alert went out and 213 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
- 1420 J/kg
- Mixed-layer CIN
- -65 J/kg
- Mixed-layer LCL
- 637 m above ground
- 0-6 km bulk shear
- 67 kt
- 0-1 km storm-relative helicity
- 193 m²/s²
- 0-3 km storm-relative helicity
- 210 m²/s²
- Significant tornado parameter
- 1.7
- Supercell composite
- 4.4
The text
The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.
What forecasters said that day
The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Jackson, KY wrote its last area forecast discussion before this severe thunderstorm warning went out at May 5, 10:30 PM EDT, 2 hours 14 minutes earlier.
Area forecast discussion, May 5, 10:30 PM EDT, 2 hours 14 minutes before
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</html>The office that day
Everything else NWS Jackson, KY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 6, 12:25 AM EDT | Severe Thunderstorm Warning | JKL | Wayne | 45 min |
| May 6, 3:21 AM EDT | Flash Flood Warning | JKL | Laurel, McCreary, Pulaski, Wayne, Whitley | 3 hr |
| May 6, 3:21 AM EDT | Flash Flood Warning | JKL | Bell, Knox | 3 hr |
| May 6, 3:21 AM EDT | Flash Flood Warning | JKL | Rockcastle | 3 hr |
Nearby
Severe Thunderstorm Warnings in Kentucky, 1999Every severe thunderstorm warning in 1999
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.