Alert archive / Kentucky / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 70, NWS Louisville, KY

May 20, 1998Bullitt County, Kentucky

NWS Louisville, KY issued this severe thunderstorm warning at May 20, 1998, 11:15 PM EDT for Bullitt County, Kentucky. It was in force for 35 min. 1 report 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, 11:15 PM EDT (03:15 UTC)
Expired
May 20, 1998, 11:50 PM EDT
In force
35 min
Issued by
NWS Louisville, KY
Area
Whole counties

County Bullitt County, KY

The radar

The Louisville radar (KLVX), 22 km from the middle of the area, began a volume at 03:18 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, 11:30 PM EDTHail 1Mt Washington, KYQuarter size hail reported by National Weather Service employee.

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, 3.3 hours before the alert went out and 220 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 00:00Z on 1998-05-21Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1938 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 00:00Z on 1998-05-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 12 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
1938 J/kg
Mixed-layer CIN
-7 J/kg
Mixed-layer LCL
1430 m above ground
0-6 km bulk shear
31 kt
0-1 km storm-relative helicity
12 m²/s²
0-3 km storm-relative helicity
86 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.6

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, 7:59 PM EDT, 3 hours 16 minutes before
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Local storm report, May 20, 8:39 PM EDT, 2 hours 36 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.
Local storm report, May 20, 10:19 PM EDT, 56 minutes before
PRELIMINARY LOCAL STORM REPORT...DELAYED REPORTS
NATIONAL WEATHER SERVICE LOUISVILLE KENTUCKY
1019 PM EDT WED MAY 20 1998

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

0320 PM    JASPER                    IN   WIND DAMAGE
05/20/98   DUBOIS                         TREES DOWN NORTH OF
                                          JASPER. REPORT FROM
                                          DISPATCH.

0330 PM    BIRDSEYE                  IN   WIND DAMAGE
05/20/98   DUBOIS                         TREES DOWN. REPORT FROM
                                          DISPATCH.

0505 PM    BUFFALO                   KY   WIND DAMAGE
05/20/98   LARUE                          NUMEROUS LIMBS AND TREES
                                          DOWN. ROOF TORN OFF MOBILE
                                          HOME. REPORT FROM NWS
                                          EMPLOYEE.

0525 PM    5 NW GREENSBURG           KY   WIND DAMAGE
05/20/98   GREEN                          TREES DOWN. REPORT FROM
                                          DISPATCH.

0550 PM    BRYANTSVILLE              KY   WIND DAMAGE
05/20/98   GARRARD                        TREES DOWN. REPORT FROM
                                          DISPATCH.

DEWALD
Local storm report, May 20, 10:19 PM EDT, 56 minutes before
PRELIMINARY LOCAL STORM REPORT...DELAYED REPORTS
NATIONAL WEATHER SERVICE LOUISVILLE KENTUCKY
1019 PM EDT WED MAY 20 1998

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

0320 PM    JASPER                    IN   WIND DAMAGE
05/20/98   DUBOIS                         TREES DOWN NORTH OF
                                          JASPER. REPORT FROM
                                          DISPATCH.

0330 PM    BIRDSEYE                  IN   WIND DAMAGE
05/20/98   DUBOIS                         TREES DOWN. REPORT FROM
                                          DISPATCH.

0505 PM    BUFFALO                   KY   WIND DAMAGE
05/20/98   LARUE                          NUMEROUS LIMBS AND TREES
                                          DOWN. ROOF TORN OFF MOBILE
                                          HOME. REPORT FROM NWS
                                          EMPLOYEE.

0525 PM    5 NW GREENSBURG           KY   WIND DAMAGE
05/20/98   GREEN                          TREES DOWN. REPORT FROM
                                          DISPATCH.

0550 PM    BRYANTSVILLE              KY   WIND DAMAGE
05/20/98   GARRARD                        TREES DOWN. REPORT FROM
                                          DISPATCH.

0550 PM    NICHOLASVILLE             KY   WIND DAMAGE
05/20/98   JESSAMINE                      TREES DOWN. NUMEROUS REPORTS
                                          OF BRANCHES ON POWER LINES.
                                          REPORT FROM DISPATCH.

DEWALD
Local storm report, May 20, 10:19 PM EDT, 56 minutes before
PRELIMINARY LOCAL STORM REPORT...DELAYED REPORTS
NATIONAL WEATHER SERVICE LOUISVILLE KENTUCKY
1019 PM EDT WED MAY 20 1998

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

0320 PM    JASPER                    IN   WIND DAMAGE
05/20/98   DUBOIS                         TREES DOWN NORTH OF
                                          JASPER. REPORT FROM
                                          DISPATCH.

0330 PM    BIRDSEYE                  IN   WIND DAMAGE
05/20/98   DUBOIS                         TREES DOWN. REPORT FROM
                                          DISPATCH.

0505 PM    BUFFALO                   KY   WIND DAMAGE
05/20/98   LARUE                          NUMEROUS LIMBS AND TREES
                                          DOWN. ROOF TORN OFF MOBILE
                                          HOME. REPORT FROM NWS
                                          EMPLOYEE.

0525 PM    5 NW GREENSBURG           KY   WIND DAMAGE
05/20/98   GREEN                          TREES DOWN. REPORT FROM
                                          DISPATCH.

0550 PM    BRYANTSVILLE              KY   WIND DAMAGE
05/20/98   GARRARD                        TREES DOWN. REPORT FROM
                                          DISPATCH.

DEWALD
Local storm report, May 20, 10:19 PM EDT, 56 minutes before
PRELIMINARY LOCAL STORM REPORT...DELAYED REPORTS
NATIONAL WEATHER SERVICE LOUISVILLE KENTUCKY
1019 PM EDT WED MAY 20 1998

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

0320 PM    JASPER                    IN   WIND DAMAGE
05/20/98   DUBOIS                         TREES DOWN NORTH OF
                                          JASPER. REPORT FROM
                                          DISPATCH.

0330 PM    BIRDSEYE                  IN   WIND DAMAGE
05/20/98   DUBOIS                         TREES DOWN. REPORT FROM
                                          DISPATCH.

0505 PM    BUFFALO                   KY   WIND DAMAGE
05/20/98   LARUE                          NUMEROUS LIMBS AND TREES
                                          DOWN. ROOF TORN OFF MOBILE
                                          HOME. REPORT FROM NWS
                                          EMPLOYEE.

0525 PM    5 NW GREENSBURG           KY   WIND DAMAGE
05/20/98   GREEN                          TREES DOWN. REPORT FROM
                                          DISPATCH.

0550 PM    BRYANTSVILLE              KY   WIND DAMAGE
05/20/98   GARRARD                        TREES DOWN. REPORT FROM
                                          DISPATCH.

0550 PM    NICHOLASVILLE             KY   WIND DAMAGE
05/20/98   JESSAMINE                      TREES DOWN. NUMEROUS REPORTS
                                          OF BRANCHES ON POWER LINES.
                                          REPORT FROM DISPATCH.

DEWALD

The office that day

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

IssuedProductOfficeCountiesLasted
May 20, 11:50 PM EDTSevere Thunderstorm WarningLMKBullitt, Nelson, Spencer35 min
May 21, 12:07 AM EDTSevere Thunderstorm WarningLMKAnderson33 min
May 21, 1:23 AM EDTSevere Thunderstorm WarningLMKCasey, Taylor32 min
May 21, 1:38 AM EDTFlash Flood WarningLMKBullitt82 min
May 21, 2:40 AM EDTSevere Thunderstorm WarningLMKAdair35 min
May 21, 6:38 PM EDTSevere Thunderstorm WarningLMKButler, Ohio37 min
May 21, 6:38 PM EDTSevere Thunderstorm WarningLMKLogan37 min
May 21, 7:18 PM EDTSevere Thunderstorm WarningLMKButler, Logan17 min
May 21, 7:18 PM EDTSevere Thunderstorm WarningLMKOhio17 min
May 21, 7:18 PM EDTSevere Thunderstorm WarningLMKButler, Logan22 min
May 21, 7:18 PM EDTSevere Thunderstorm WarningLMKOhio22 min
May 21, 7:25 PM EDTSevere Thunderstorm WarningLMKSimpson, Warren50 min
May 21, 7:25 PM EDTSevere Thunderstorm WarningLMKEdmonson, Grayson50 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.