Alert archive / Kentucky / Severe Thunderstorm Warnings in 1998
Severe Thunderstorm Warning 79, NWS Louisville, KY
NWS Louisville, KY issued this severe thunderstorm warning at May 21, 1998, 6:18 PM CDT for Butler County, Logan County, Kentucky. It was in force for 22 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- May 21, 1998, 6:18 PM CDT (23:18 UTC)
- Expired
- May 21, 1998, 6:40 PM CDT
- In force
- 22 min
- Issued by
- NWS Louisville, KY
- Area
- Whole counties
Counties Butler County, KY, Logan County, KY
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| May 21, 4:00 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
The nearest sounding before it
Nashville Metro, TN (KBNA), launched 12:00Z, 11.3 hours before the alert went out and 102 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
- 1382 J/kg
- Mixed-layer CIN
- -95 J/kg
- Mixed-layer LCL
- 1095 m above ground
- 0-6 km bulk shear
- 31 kt
- 0-1 km storm-relative helicity
- 139 m²/s²
- 0-3 km storm-relative helicity
- 162 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.5
The text
As transmitted, in the capitals the NWS used until 2016.
640 WUUS1 KSDF 212319 RRA SVRSDF KYC031-141-183-212340- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING...CORRECTED NATIONAL WEATHER SERVICE LOUISVILLE KY 718 PM EDT (618 PM CDT) THU MAY 21 1998 THE NATIONAL WEATHER SERVICE IN LOUISVILLE HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... EASTERN BUTLER COUNTY IN SOUTH CENTRAL KENTUCKY LOGAN COUNTY IN SOUTH CENTRAL KENTUCKY EASTERN OHIO COUNTY IN NORTHWESTERN KENTUCKY * UNTIL 640 PM CDT (740 PM EDT) * AT 615 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A LINE OF SEVERE THUNDERSTORMS EXTENDING FROM NEAR BEAVER DAM SOUTHWARD TO NEAR RUSSELLVILLE... MOVING SOUTHEAST AT 40 MPH. * THE SEVERE THUNDERSTORM WILL BE NEAR... RENFROW BY 620 PM CDT JETSON BY 625 PM CDT AUBURN BY 625 PM CDT DAMAGING WINDS AND HEAVY RAIN ARE LIKELY. GO INSIDE A STURDY BUILDING AND STAY AWAY FROM WINDOWS DEWALD
The office that day
Everything else NWS Louisville, KY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 20, 10:15 PM CDT | Severe Thunderstorm Warning | LMK | Bullitt | 35 min |
| May 20, 10:50 PM CDT | Severe Thunderstorm Warning | LMK | Bullitt, Nelson, Spencer | 35 min |
| May 20, 11:07 PM CDT | Severe Thunderstorm Warning | LMK | Anderson | 33 min |
| May 21, 12:23 AM CDT | Severe Thunderstorm Warning | LMK | Casey, Taylor | 32 min |
| May 21, 12:38 AM CDT | Flash Flood Warning | LMK | Bullitt | 82 min |
| May 21, 1:40 AM CDT | Severe Thunderstorm Warning | LMK | Adair | 35 min |
| May 21, 5:38 PM CDT | Severe Thunderstorm Warning | LMK | Butler, Ohio | 37 min |
| May 21, 5:38 PM CDT | Severe Thunderstorm Warning | LMK | Logan | 37 min |
| May 21, 6:18 PM CDT | Severe Thunderstorm Warning | LMK | Butler, Logan | 17 min |
| May 21, 6:18 PM CDT | Severe Thunderstorm Warning | LMK | Ohio | 17 min |
| May 21, 6:18 PM CDT | Severe Thunderstorm Warning | LMK | Ohio | 22 min |
| May 21, 6:25 PM CDT | Severe Thunderstorm Warning | LMK | Simpson, Warren | 50 min |
| May 21, 6:25 PM CDT | Severe Thunderstorm Warning | LMK | Edmonson, Grayson | 50 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; the sounding from the Mesonet's radiosonde archive.