Alert archive / Kentucky / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 7, NWS Louisville, KY

April 8, 1998Logan County, Kentucky

NWS Louisville, KY issued this severe thunderstorm warning at Apr 8, 1998, 1:29 AM CDT for Logan County, Kentucky. It was in force for 46 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: Apr 8, 1998, 1:29 AM CDT (06:29 UTC)
Expired: Apr 8, 1998, 2:15 AM CDT
In force: 46 min
Issued by: NWS Louisville, KY
Area: Whole counties

County Logan County, KY

The radar

The Ft Campbell radar (KHPX), 39 km from the middle of the area, began a volume at 06:33 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.

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 00:00Z, 6.5 hours before the alert went out and 85 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: 441 J/kg
Mixed-layer CIN: -23 J/kg
Mixed-layer LCL: 1130 m above ground
0-6 km bulk shear: 59 kt
0-1 km storm-relative helicity: 246 m²/s²
0-3 km storm-relative helicity: 370 m²/s²
Significant tornado parameter: 0.6
Supercell composite: 12.6

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
TTAA00 KSDF 080628 RRA
SVRSDF
KYC141-080715-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE LOUISVILLE KY
229 AM EDT (129 AM CDT) WED APR 8 1998

* SEVERE THUNDERSTORM WARNING FOR
  LOGAN COUNTY - SOUTH CENTRAL KENTUCKY

* UNTIL 215 AM CDT (315 AM EDT)

* SOME LOCATIONS AFFECTED
  GORDONSVILLE BY 135 AM CDT
  RUSSELLVILE BY 145 AM CDT

* AT 225 AM EDT/125 AM CDT...DOPPLER RADAR INDICATED A SEVERE
THUNDERSTORM JUST APPROACHING GORDONSVILLE IN WESTERN LOGAN
COUNTY...WHICH IS ABOUT 25 MILES SOUTHWEST OF BOWLING GREEN. THE
STORM WAS MOVING NORTHEAST AT 40 MPH.

IF YOU ARE OUTSIDE OR IN THE PATH OF THIS STORM...SEEK SHELTER
INSIDE A STRONG BUILDING. AVOID WINDOWS AND STAY OFF THE TELEPHONE
UNTIL THE STORM HAS PASSED.

STUREY/RNK

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, Apr 7, 10:52 PM CDT, 2 hours 37 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LOUISVILLE KY
1152 PM EDT TUE APR 07 1998

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

1145 PM                              IN   MARBLE SIZE HAIL
04/07/98   WASHINGTON                     AT CAMPBELLSBURG.

WAIDLEY

Local storm report, Apr 7, 10:52 PM CDT, 2 hours 37 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LOUISVILLE KY
1152 PM EDT TUE APR 07 1998

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

1145 PM                              IN   MARBLE SIZE HAIL
04/07/98   WASHINGTON                     AT CAMPBELLSBURG.

WAIDLEY

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 8, 1:33 AM CDT	Tornado Warning	LMK	Logan	47 min
Apr 8, 1:51 AM CDT	Severe Thunderstorm Warning	LMK	Warren	39 min
Apr 8, 2:02 AM CDT	Severe Thunderstorm Warning	LMK	Trimble	33 min
Apr 8, 2:15 AM CDT	Tornado Warning	LMK	Edmonson	30 min
Apr 8, 2:28 AM CDT	Severe Thunderstorm Warning	LMK	Simpson	32 min
Apr 8, 2:33 AM CDT	Severe Thunderstorm Warning	LMK	Barren	32 min
Apr 8, 2:33 AM CDT	Tornado Warning	LMK	Hart	32 min
Apr 8, 2:39 AM CDT	Tornado Warning	LMK	Barren	31 min
Apr 8, 2:49 AM CDT	Severe Thunderstorm Warning	LMK	Allen	31 min
Apr 8, 2:57 AM CDT	Tornado Warning	LMK	Green, Metcalfe	23 min
Apr 8, 3:23 AM CDT	Severe Thunderstorm Warning	LMK	Adair	32 min
Apr 8, 12:04 PM CDT	Severe Thunderstorm Warning	LMK	Butler, Warren	31 min
Apr 8, 12:28 PM CDT	Severe Thunderstorm Warning	LMK	Edmonson	17 min
Apr 8, 12:33 PM CDT	Severe Thunderstorm Warning	LMK	Grayson, Ohio	27 min
Apr 8, 1:05 PM CDT	Severe Thunderstorm Warning	LMK	Breckinridge, Hardin	25 min
Apr 8, 1:35 PM CDT	Severe Thunderstorm Warning	LMK	Hardin, Meade	30 min
Apr 8, 1:35 PM CDT	Severe Thunderstorm Warning	LMK	Bullitt	30 min
Apr 8, 1:53 PM CDT	Tornado Warning	LMK	Boyle, Mercer	22 min
Apr 8, 1:58 PM CDT	Severe Thunderstorm Warning	LMK	Jefferson, Spencer	32 min
Apr 8, 2:16 PM CDT	Severe Thunderstorm Warning	LMK	Shelby	29 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.