Alert archive / Kentucky / Severe Thunderstorm Warnings in 1987
Severe Thunderstorm Warning 4, NWS Louisville, KY
NWS Louisville, KY issued this severe thunderstorm warning at May 19, 1987, 4:52 PM EDT for Oldham County, Kentucky. It was in force for 38 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 19, 1987, 4:52 PM EDT (20:52 UTC)
- Expired
- May 19, 1987, 5:30 PM EDT
- In force
- 38 min
- Issued by
- NWS Louisville, KY
- Area
- Whole counties
County Oldham County, KY
The radar
The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| May 19, 5:15 PM EDT | Thunderstorm Wind 0 | Oldham, 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. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.
The nearest sounding before it
Dayton/James M C, OH (KDAY), launched 12:00Z, 8.9 hours before the alert went out and 199 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
- 359 J/kg
- Mixed-layer CIN
- -23 J/kg
- Mixed-layer LCL
- 562 m above ground
- 0-6 km bulk shear
- 20 kt
- 0-1 km storm-relative helicity
- 48 m²/s²
- 0-3 km storm-relative helicity
- 75 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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
Special weather statement, May 19, 2:57 PM EDT, 1 hour 55 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE LEXINGTON KY 3 PM EDT TUE MAY 19 1987 ...THUNDERSTORMS FORMING OVER EAST CENTRAL KENTUCKY... AT 3 PM EDT THUNDERSTORMS WERE BECOMING MORE NUMEROUS OVER THE EAST CENTRAL KENTUCKY AREA. STRONG THUNDERSTORMS WERE LOCATED OVER FAYETTE..FRANKLIN..AND BOURBON COUNTIES. THESE STORMS WERE MOVING EAST AROUND 20 MPH AND WILL CONTAIN BRIEF VERY HEAVY RAIN..STRONG GUSTY WINDS..AND POSSIBLY SMALL HAIL. DANGEROUS LIGHTNING GROUND STRIKES CAN ALSO BE EXPECTED WITH THESE THUNDERSTORMS. THE THREAT OF ADDITIONAL THUNDERSTORMS WILL CONTINUE ACROSS EAST CENTRAL KENTUCKY THIS AFTERNOON. HENRICK
Special weather statement, May 19, 3:53 PM EDT, 59 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE LEXINGTON KY 345 PM EDT TUE MAY 19 1987 ...THUNDERSTORMS CONTINUING OVER EAST CENTRAL KENTUCKY... AT 345 PM EDT THUNDERSTORMS CONTINUED OVER THE EAST CENTRAL KENTUSKY AREA. AVERY STRONG THUNDERSTORM WAS LOCATED OVER WESTERN FRANKLIN COUNTY. OTHER STRON THUNDERSTORMS WERE IN FAYETTE..BOURBON..AND NICHOLAS COUNTIES. ALL OF THE THUNDERSTORMS WERE MOVING EAST AROUND 20 MPH AND WILL CONTAIN VERY HEAVY RAIN..STRONG GUSTY WINDS..AND POSSIBLY SOME HAIL. DANGEROUS LIGHTNING GROUND STRIKES CAN ALSO BE EXPECTED WITH THESE THUNDERSTORMS. PONDING OF WATER IN UNDERPASSES AND OTHER LOW AREAS WILL OCCUR IN AREAS OF HEAVY RAINFALL. THE THREAT OF SCATTERED THUNDERSTORMS WILL CONTINUE ACROSS EAST CENTRAL KENTUCKY THIS AFTERNOON. HENRICK
Special weather statement, May 19, 3:56 PM EDT, 56 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE LEXINGTON KY 345 PM EDT TUE MAY 19 1987 ...THUNDERSTORMS CONTINUING OVER EAST CENTRAL KENTUCKY... AT 345 PM EDT THUNDERSTORMS CONTINUED OVER THE EAST CENTRAL KENTUCKY AREA. A VERY STRONG THUNDERSTORM WAS LOCATED OVER WESTERN FRANKLIN COUNTY. OTHER STRON THUNDERSTORMS WERE IN FAYETTE..BOURBON..AND NICHOLAS COUNTIES. ALL OF THE THUNDERSTORMS WERE MOVING EAST AROUND 20 MPH AND WILL CONTAIN VERY HEAVY RAIN..STRONG GUSTY WINDS..AND POSSIBLY SOME HAIL. DANGEROUS LIGHTNING GROUND STRIKES CAN ALSO BE EXPECTED WITH THESE THUNDERSTORMS. PONDING OF WATER IN UNDERPASSES AND OTHER LOW AREAS WILL OCCUR IN AREAS OF HEAVY RAINFALL. THE THREAT OF SCATTERED THUNDERSTORMS WILL CONTINUE ACROSS EAST CENTRAL KENTUCKY THIS AFTERNOON. HENRICK
Special weather statement, May 19, 4:16 PM EDT, 36 minutes before
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</html>The office that day
Everything else NWS Louisville, KY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 19, 5:18 PM EDT | Severe Thunderstorm Warning | LMK | Shelby | 32 min |
| May 19, 4:10 PM EDT | Severe Thunderstorm Warning | LMK | Jefferson | 35 min |
Nearby
Severe Thunderstorm Warnings in Kentucky, 1987Every severe thunderstorm warning in 1987
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.