Alert archive / Indiana / Severe Thunderstorm Warnings in 1998
Severe Thunderstorm Warning 9, NWS Louisville, KY
NWS Louisville, KY issued this severe thunderstorm warning at Apr 8, 1998, 2:02 AM EST for Jefferson County, Indiana; Trimble County, Kentucky. It was in force for 33 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, 2:02 AM EST (07:02 UTC)
- Expired
- Apr 8, 1998, 2:35 AM EST
- In force
- 33 min
- Issued by
- NWS Louisville, KY
- Area
- Whole counties
Counties Jefferson County, IN, Trimble 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 |
|---|---|---|---|
| Apr 7, 10:00 PM EST | Tornado Watch | SPC | 6 hr |
| Apr 8, 2:00 AM EST | Tornado Watch | SPC | 6 hr |
The nearest sounding before it
Cncnati-Daytn, OH (KILN), launched 00:00Z, 7.0 hours before the alert went out and 159 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1470 m above ground
- 0-6 km bulk shear
- 68 kt
- 0-1 km storm-relative helicity
- 385 m²/s²
- 0-3 km storm-relative helicity
- 517 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KSDF 080701 RRA SVRSDF INC077-KYC223-080735- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE LOUISVILLE KY 302 AM EDT WED APR 8 1998 * SEVERE THUNDERSTORM WARNING FOR TRIMBLE COUNTY - NORTH CENTRAL KENTUCKY JEFFERSON COUNTY - SOUTH CENTRAL INDIANA * UNTIL 335 AM EDT * SOME LOCATIONS AFFECTED SMYRNA -- SHORTLY MADISON -- 310 AM EDT BEDFORD -- 310 AM EDT * AT 300 AM EDT DOPPLER RADAR INDICATED SEVERE THUNDERSTORMS FROM NEAR DEPUTY IN WESTERN JEFFERSON COUNTY INDIANA DOWN TO MT PLEASANT IN TRIMBLE COUNTY...ALL ABOUT 25 TO 35 MILES NORTH OF LOUISVILLE. THE STORMS WERE MOVING EAST-NORTHEAST AT 35 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. A TORNADO WATCH IS ALSO IN EFFECT. SEVERE THUNDERSTORMS CAN PRODUCE TORNADOES WITH LITTLE OR NO ADVANCE NOTICE. 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 EST, 3 hours 10 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.
WAIDLEYLocal storm report, Apr 7, 10:52 PM EST, 3 hours 10 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.
WAIDLEYThe office that day
Everything else NWS Louisville, KY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 7, 9:30 PM EST | Tornado Warning | LMK | Dubois | 30 min |
| Apr 7, 9:58 PM EST | Tornado Warning | LMK | Orange | 32 min |
| Apr 7, 10:01 PM EST | Tornado Warning | LMK | Dubois | 34 min |
| Apr 7, 10:27 PM EST | Tornado Warning | LMK | Washington | 33 min |
| Apr 7, 10:35 PM EST | Tornado Warning | LMK | Orange | 25 min |
| Apr 7, 10:59 PM EST | Tornado Warning | LMK | Washington | 31 min |
| Apr 7, 11:13 PM EST | Tornado Warning | LMK | Scott | 27 min |
| Apr 7, 11:56 PM EST | Severe Thunderstorm Warning | LMK | Jefferson | 34 min |
| Apr 8, 12:01 AM EST | Tornado Warning | LMK | Jefferson | 29 min |
| Apr 8, 12:15 AM EST | Severe Thunderstorm Warning | LMK | Dubois | 30 min |
| Apr 8, 12:47 AM EST | Tornado Warning | LMK | Jefferson | 28 min |
| Apr 8, 6:42 PM EST | Severe Thunderstorm Warning | LMK | Crawford, Dubois, Orange, Perry | 33 min |
| Apr 8, 1:29 AM EST | Severe Thunderstorm Warning | LMK | Logan | 46 min |
| Apr 8, 1:33 AM EST | Tornado Warning | LMK | Logan | 47 min |
| Apr 8, 1:51 AM EST | Severe Thunderstorm Warning | LMK | Warren | 39 min |
| Apr 8, 2:15 AM EST | Tornado Warning | LMK | Edmonson | 30 min |
| Apr 8, 2:28 AM EST | Severe Thunderstorm Warning | LMK | Simpson | 32 min |
| Apr 8, 2:33 AM EST | Severe Thunderstorm Warning | LMK | Barren | 32 min |
| Apr 8, 2:33 AM EST | Tornado Warning | LMK | Hart | 32 min |
| Apr 8, 2:39 AM EST | Tornado Warning | LMK | Barren | 31 min |
| Apr 8, 2:49 AM EST | Severe Thunderstorm Warning | LMK | Allen | 31 min |
| Apr 8, 2:57 AM EST | Tornado Warning | LMK | Green, Metcalfe | 23 min |
| Apr 8, 3:23 AM EST | Severe Thunderstorm Warning | LMK | Adair | 32 min |
| Apr 8, 12:04 PM EST | Severe Thunderstorm Warning | LMK | Butler, Warren | 31 min |
| Apr 8, 12:28 PM EST | Severe Thunderstorm Warning | LMK | Edmonson | 17 min |
| Apr 8, 12:33 PM EST | Severe Thunderstorm Warning | LMK | Grayson, Ohio | 27 min |
| Apr 8, 1:05 PM EST | Severe Thunderstorm Warning | LMK | Breckinridge, Hardin | 25 min |
| Apr 8, 1:35 PM EST | Severe Thunderstorm Warning | LMK | Hardin, Meade | 30 min |
| Apr 8, 1:35 PM EST | Severe Thunderstorm Warning | LMK | Bullitt | 30 min |
| Apr 8, 1:53 PM EST | Tornado Warning | LMK | Boyle, Mercer | 22 min |
| Apr 8, 1:58 PM EST | Severe Thunderstorm Warning | LMK | Jefferson, Spencer | 32 min |
| Apr 8, 2:16 PM EST | Severe Thunderstorm Warning | LMK | Shelby | 29 min |
Nearby
Severe Thunderstorm Warnings in Indiana, 1998Severe 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.