Alert archive / Kentucky / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 61, NWS Louisville, KY

May 20, 1998Larue County, Nelson County, Kentucky

NWS Louisville, KY issued this severe thunderstorm warning at May 20, 1998, 4:55 PM EDT for Larue County, Nelson County, Kentucky. It was in force for 30 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 20, 1998, 4:55 PM EDT (20:55 UTC)
Expired: May 20, 1998, 5:25 PM EDT
In force: 30 min
Issued by: NWS Louisville, KY
Area: Whole counties

Counties Larue County, KY, Nelson County, KY

The radar

The Louisville radar (KLVX), 46 km from the middle of the area, began a volume at 20:55 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 20, 5:05 PM EDT	Thunderstorm Wind 60	Buffalo, KY
May 20, 5:10 PM EDT	Thunderstorm Wind 50	Bardstown, 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

Nashville Metro, TN (KBNA), launched 12:00Z, 8.9 hours before the alert went out and 194 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 647 J/kg
Mixed-layer CIN: -298 J/kg
Mixed-layer LCL: 1537 m above ground
0-6 km bulk shear: 30 kt
0-1 km storm-relative helicity: 68 m²/s²
0-3 km storm-relative helicity: 100 m²/s²
Significant tornado parameter: 0.0
Supercell composite: -0.0

Open this sounding in Storm Lab

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.

In the hours before

Local storm report, May 20, 4:00 PM EDT, 55 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LOUISVILLE KENTUCKY
759 PM EDT WED MAY 20 1998

TIME(EDT)  .....CITY LOCATION..... STATE  ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0345 PM    LEWISPORT                 KY   WIND DAMAGE
05/20/98   HANCOCK                        TREES AND POWER LINES
                                          DOWN. REPORT FROM POLICE
                                          DEPARTMENT

0345 PM    LEWISPORT                 KY   1.75 INCH HAIL
05/20/98   HANCOCK

0350 PM    TELL CITY                 IN   WIND DAMAGE
05/20/98   PERRY                          ROOF DAMAGE. REPORZT FROM
                                          DES.

Local storm report, May 20, 4:41 PM EDT, 14 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LOUISVILLE KENTUCKY
839 PM EDT WED MAY 20 1998

TIME(EDT)  .....CITY LOCATION..... STATE  ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0420 PM    PAYNEVILLE                KY   60 MPH TSTM GUST
05/20/98   MEADE                          REPORT FROM DES.

The office that day

Everything else NWS Louisville, KY issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 20, 12:45 AM EDT	Severe Thunderstorm Warning	LMK	Jefferson, Oldham, Shelby, Spencer	35 min
May 20, 1:00 AM EDT	Severe Thunderstorm Warning	LMK	Bullitt	35 min
May 20, 1:18 AM EDT	Severe Thunderstorm Warning	LMK	Anderson, Franklin	32 min
May 20, 1:43 AM EDT	Severe Thunderstorm Warning	LMK	Fayette	32 min
May 20, 2:20 AM EDT	Severe Thunderstorm Warning	LMK	Madison	20 min
May 20, 3:25 PM EDT	Severe Thunderstorm Warning	LMK	Hancock	40 min
May 20, 3:53 PM EDT	Severe Thunderstorm Warning	LMK	Breckinridge, Meade	37 min
May 20, 4:29 PM EDT	Severe Thunderstorm Warning	LMK	Bullitt, Hardin, Jefferson	36 min
May 20, 5:00 PM EDT	Severe Thunderstorm Warning	LMK	Spencer	30 min
May 20, 5:10 PM EDT	Severe Thunderstorm Warning	LMK	Marion, Washington	30 min
May 20, 5:15 PM EDT	Severe Thunderstorm Warning	LMK	Green, Taylor	30 min
May 20, 5:26 PM EDT	Severe Thunderstorm Warning	LMK	Anderson, Mercer	39 min
May 20, 5:26 PM EDT	Severe Thunderstorm Warning	LMK	Boyle, Casey	39 min
May 20, 5:40 PM EDT	Severe Thunderstorm Warning	LMK	Jessamine, Woodford	45 min
May 20, 5:40 PM EDT	Severe Thunderstorm Warning	LMK	Garrard, Lincoln	45 min
May 20, 6:05 PM EDT	Severe Thunderstorm Warning	LMK	Clark, Fayette, Madison	40 min
May 19, 11:46 PM EDT	Severe Thunderstorm Warning	LMK	Orange, Washington	29 min
May 20, 3:10 PM EDT	Severe Thunderstorm Warning	LMK	Dubois	30 min
May 20, 4:05 PM EDT	Severe Thunderstorm Warning	LMK	Crawford, Harrison	40 min

Nearby

Severe Thunderstorm Warnings in Kentucky, 1998 Every 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.