Alert archive / Indiana / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 59, NWS Louisville, KY

May 20, 1998Crawford County, Harrison County, Indiana

NWS Louisville, KY issued this severe thunderstorm warning at May 20, 1998, 3:05 PM EST for Crawford County, Harrison County, Indiana. It was in force for 40 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, 3:05 PM EST (20:05 UTC)
Expired
May 20, 1998, 3:45 PM EST
In force
40 min
Issued by
NWS Louisville, KY
Area
Whole counties

Counties Crawford County, IN, Harrison County, IN

The radar

The Louisville radar (KLVX), 42 km from the middle of the area, began a volume at 20:05 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

TimeReportWhereRemark
May 20, 3:35 PM ESTThunderstorm Wind 50Marengo, IN
May 20, 3:40 PM ESTThunderstorm Wind 50Corydon, IN

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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
May 20, 1:15 PM ESTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 12:00Z, 8.1 hours before the alert went out and 237 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-pSkew-T log-p diagram, Nashville Metro, TN at 12:00Z on 1998-05-20Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 647 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Nashville Metro, TN at 12:00Z on 1998-05-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 68 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
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, 3:00 PM EST, 5 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.

The office that day

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

IssuedProductOfficeCountiesLasted
May 19, 11:45 PM ESTSevere Thunderstorm WarningLMKJefferson, Oldham, Shelby, Spencer35 min
May 20, 12:00 AM ESTSevere Thunderstorm WarningLMKBullitt35 min
May 20, 12:18 AM ESTSevere Thunderstorm WarningLMKAnderson, Franklin32 min
May 20, 12:43 AM ESTSevere Thunderstorm WarningLMKFayette32 min
May 20, 1:20 AM ESTSevere Thunderstorm WarningLMKMadison20 min
May 20, 2:25 PM ESTSevere Thunderstorm WarningLMKHancock40 min
May 20, 2:53 PM ESTSevere Thunderstorm WarningLMKBreckinridge, Meade37 min
May 20, 3:29 PM ESTSevere Thunderstorm WarningLMKBullitt, Hardin, Jefferson36 min
May 20, 3:55 PM ESTSevere Thunderstorm WarningLMKLarue, Nelson30 min
May 20, 4:00 PM ESTSevere Thunderstorm WarningLMKSpencer30 min
May 20, 4:10 PM ESTSevere Thunderstorm WarningLMKMarion, Washington30 min
May 20, 4:15 PM ESTSevere Thunderstorm WarningLMKGreen, Taylor30 min
May 20, 4:26 PM ESTSevere Thunderstorm WarningLMKAnderson, Mercer39 min
May 20, 4:26 PM ESTSevere Thunderstorm WarningLMKBoyle, Casey39 min
May 20, 4:40 PM ESTSevere Thunderstorm WarningLMKJessamine, Woodford45 min
May 20, 4:40 PM ESTSevere Thunderstorm WarningLMKGarrard, Lincoln45 min
May 20, 5:05 PM ESTSevere Thunderstorm WarningLMKClark, Fayette, Madison40 min
May 19, 10:46 PM ESTSevere Thunderstorm WarningLMKOrange, Washington29 min
May 20, 2:10 PM ESTSevere Thunderstorm WarningLMKDubois30 min

Nearby

Severe Thunderstorm Warnings in Indiana, 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.