Alert archive / Kentucky / Tornado Warnings in 1998
Tornado Warning 6, NWS Jackson, KY
NWS Jackson, KY issued this tornado warning at Apr 3, 1998, 7:25 PM EST for Knox County, Kentucky. It was in force for 35 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 3, 1998, 7:25 PM EST (00:25 UTC)
- Expired
- Apr 3, 1998, 8:00 PM EST
- In force
- 35 min
- Issued by
- NWS Jackson, KY
- Area
- Whole counties
County Knox 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 3, 5:00 PM EST | Tornado Watch | SPC | 5 hr |
The nearest sounding before it
Nashville Metro, TN (KBNA), launched 00:00Z, 0.4 hours before the alert went out and 260 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
- 137 J/kg
- Mixed-layer CIN
- -38 J/kg
- Mixed-layer LCL
- 746 m above ground
- 0-6 km bulk shear
- 52 kt
- 0-1 km storm-relative helicity
- -161 m²/s²
- 0-3 km storm-relative helicity
- -101 m²/s²
- Significant tornado parameter
- -0.0
- Supercell composite
- -0.3
The text
As transmitted, in the capitals the NWS used until 2016.
332 WFUS1 KJKL 040026 RRA TORJKL KYC121-040100- BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE JACKSON KY 725 PM EST FRI APR 3 1998 THE NATIONAL WEATHER SERVICE IN JACKSON KY HAS ISSUED A TORNADO WARNING EFFECTIVE UNTIL 800 PM EST FOR PEOPLE IN THE FOLLOWING LOCATION... IN SOUTHEASTERN KENTUCKY ...KNOX SPOTTERS AND LAW ENFORCEMENT REPORTED A TORNADO NEAR CORBIN CITY AT 723 PM. RESIDENTS OF GRAY...KNOX FORK...BARBOURVILLE...WOOLLUM SHOULD BE IN THEIR BASEMENTS NOW. IF YOU ARE CAUGHT OUTSIDE... SEEK SAFETY IN A NEARBY REINFORCED BUILDING. AS A LAST RESORT... SEEK REFUGE IN A CULVERT... DITCH OR LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS. &
What forecasters said that day
The local office's own words before this tornado warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Jackson, KY wrote its last area forecast discussion before this tornado warning went out at Apr 3, 2:00 PM EST, 5 hours 25 minutes earlier.
Area forecast discussion, Apr 3, 2:00 PM EST, 5 hours 25 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE JACKSON KY 200 PM EST FRI APR 3 1998 PRECIP HAVING A HARD TIME OVERCOMING LIGHT DOWNSLOPE COMPONENT THIS AFTERNOON. INDEED...PRECIP TRENDS HAVE BEEN TOWARD LESS AND LESS WITH EACH HOUR THAT HAS PASSED. FINALLY BEGINNING TO SEE SOME DEVELOPMENT THOUGH IN W TN AS OF 18Z. MODELS STILL CONTINUE TO PAINT EXCELLENT DYNAMICS INTO EASTERN KY...BUT NOT UNTIL THIS EVENING. BY THAT TIME...MAX HEATING WILL BE LOST AND IT WILL BE A PURELY DYNAMIC DRIVEN EVENT. IT WILL ALL DEPEND ON HOW FAR NORTH THE WARM FRONT ACTUALLY LIFTS. IF WE NEVER GET INTO THE WARM SECTOR...SVR WILL BE LIMITED AT BEST. A LITTLE SUNSHINE THIS AFTERNOON WILL INCREASE OUR CHANCES OF SVR BUT CLOUDS REMAIN MAINLY BKN TO OVC. AT 18Z WARM FRONT STRETCHED FROM JUST EAST OF BWG TO NORTH OF CSV TO SOUTH OF TYS TO BETWEEN GSP AND ANDERSON SC. SO THE WARM FRONT HAS MOVED NORTH SOME DURING THE LAST HOUR OR SO...AND WESTERN KY...IN PARTICULAR...IS NOW IN THE WARM SECTOR. WHAT THIS EVENT DOES HAVE GOING FOR IT...BOTH HERE AND DOWN IN E TN... IS EXCELLENT SHEAR AS SHOWN ON VWP/S FROM BOTH KJKL AND KMRX. LIGHT SE WINDS IN THE LOWEST GATES VEER AROUND TO 260/50KTS AT 20KFT. BEST INSTABILITIES WILL BE OVER TN THIS EVENING ACCORDING TO GRIDDED DATA...SO BEST CHANCE FOR SVR WILL BE ALONG THE KY/TN BORDER. COLD FRONT (WHICH IS MORE LIKE A DRY LINE WITH DEWPOINTS 15 TO 20 DEGREES COOLER BEHIND IT) SHOULD PASS THROUGH HERE AROUND MIDNIGHT LOCAL TIME. SHOWERS WON/T LINGER LONG ONCE IT GOES BY...BUT STILL MOSTLY CLOUDY TONIGHT WITH SUNSHINE RETURNING LATE SAT AM. DRY AND COOL SATURDAY NIGHT AND SUN. WILL FOLLOW FWC PRETTY CLOSELY IN REGARD TO TEMPS. NO POPS NEEDED FIRST PERIOD. THE FOLLOWING IS FOR COORDINATION PURPOSES ONLY. OFFICIAL FORECASTS ARE CONTAINED IN THE PRODUCT SDFZFPKY. JKL 46/56/37/58 +200 LOZ 44/57/34/60 +200 INGRAM
The office that day
Everything else NWS Jackson, KY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 3, 7:33 PM EST | Tornado Warning | JKL | Whitley | 32 min |
Nearby
Tornado Warnings in Kentucky, 1998Every tornado warning in 1998Tornadoes 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.