Alert archive / Kentucky / Severe Thunderstorm Warnings in 1998
Severe Thunderstorm Warning 56, NWS Jackson, KY
NWS Jackson, KY issued this severe thunderstorm warning at May 3, 1998, 5:54 PM EDT for Harlan County, Kentucky. It was in force for 61 min. 2 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 3, 1998, 5:54 PM EDT (21:54 UTC)
- Expired
- May 3, 1998, 6:55 PM EDT
- In force
- 61 min
- Issued by
- NWS Jackson, KY
- Area
- Whole counties
County Harlan County, KY
The radar
The Knoxville radar (KMRX), 78 km from the middle of the area, began a volume at 21:58 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 was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| May 3, 6:30 PM EDT | Hail 0.88 | Wallins Creek, KY | |
| May 3, 6:35 PM EDT | Hail 0.75 | Baxter, KY |
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
Cncnati-Daytn, OH (KILN), launched 12:00Z, 9.9 hours before the alert went out and 291 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
- 15 J/kg
- Mixed-layer CIN
- -48 J/kg
- Mixed-layer LCL
- 654 m above ground
- 0-6 km bulk shear
- 6 kt
- 0-1 km storm-relative helicity
- 18 m²/s²
- 0-3 km storm-relative helicity
- 0 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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 3, 2:45 PM EDT, 3 hours 9 minutes earlier.
Area forecast discussion, May 3, 2:45 PM EDT, 3 hours 9 minutes before
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Local storm report, May 3, 5:37 PM EDT, 17 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 2, 8:30 PM EDT | Severe Thunderstorm Warning | JKL | Leslie | 75 min |
| May 2, 9:05 PM EDT | Severe Thunderstorm Warning | JKL | Estill | 60 min |
| May 2, 10:08 PM EDT | Severe Thunderstorm Warning | JKL | Breathitt, Wolfe | 82 min |
| May 3, 12:38 PM EDT | Severe Thunderstorm Warning | JKL | Whitley | 47 min |
| May 3, 1:07 PM EDT | Severe Thunderstorm Warning | JKL | Knox, Laurel | 48 min |
| May 3, 1:31 PM EDT | Severe Thunderstorm Warning | JKL | Clay | 44 min |
| May 3, 2:08 PM EDT | Severe Thunderstorm Warning | JKL | Owsley | 47 min |
| May 3, 2:08 PM EDT | Severe Thunderstorm Warning | JKL | Leslie | 47 min |
| May 3, 2:17 PM EDT | Severe Thunderstorm Warning | JKL | Breathitt | 48 min |
| May 3, 2:32 PM EDT | Severe Thunderstorm Warning | JKL | Bell | 33 min |
| May 3, 2:37 PM EDT | Severe Thunderstorm Warning | JKL | Perry | 48 min |
| May 3, 2:48 PM EDT | Severe Thunderstorm Warning | JKL | Rowan | 47 min |
| May 3, 3:14 PM EDT | Severe Thunderstorm Warning | JKL | Morgan | 31 min |
| May 3, 6:30 PM EDT | Severe Thunderstorm Warning | JKL | Leslie, Perry | 65 min |
| May 3, 6:54 PM EDT | Severe Thunderstorm Warning | JKL | Knott | 61 min |
Nearby
Severe Thunderstorm Warnings in Kentucky, 1998Every severe thunderstorm warning in 1998
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; radar from the NEXRAD Level II archive.