Alert archive / Kentucky / Severe Thunderstorm Watches in 1998

Severe Thunderstorm Watch 484

May 31, 19984 states

The Storm Prediction Center issued this severe thunderstorm watch at May 31, 1998, 6:15 PM CDT for 4 states. It was in force for 6 hr.

The area

The outline as issued.

The facts

Issued: May 31, 1998, 6:15 PM CDT (23:15 UTC)
Expired: Jun 1, 1998, 12:00 AM CDT
In force: 6 hr
Issued by: the Storm Prediction Center

All 62 counties

Adair County, KY, Allen County, KY, Barren County, KY, Bell County, KY, Boyle County, KY, Breathitt County, KY, Casey County, KY, Clay County, KY, Clinton County, KY, Cumberland County, KY, Edmonson County, KY, Estill County, KY, Floyd County, KY, Garrard County, KY, Grayson County, KY, Green County, KY, Hardin County, KY, Harlan County, KY, Hart County, KY, Jackson County, KY, Johnson County, KY, Knott County, KY, Knox County, KY, Larue County, KY, Laurel County, KY, Lee County, KY, Leslie County, KY, Letcher County, KY, Lincoln County, KY, Madison County, KY, Magoffin County, KY, Marion County, KY, Martin County, KY, McCreary County, KY, Mercer County, KY, Metcalfe County, KY, Monroe County, KY, Morgan County, KY, Nelson County, KY, Owsley County, KY, Perry County, KY, Pike County, KY, Powell County, KY, Pulaski County, KY, Rockcastle County, KY, Russell County, KY, Taylor County, KY, Warren County, KY, Washington County, KY, Wayne County, KY, Whitley County, KY, Wolfe County, KY, Clay County, TN, Macon County, TN, Pickett County, TN, Sumner County, TN, City of Norton, VA, Dickenson County, VA, Lee County, VA, Scott County, VA, Wise County, VA, Mingo County, WV

Warnings issued inside it

33 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.

Issued	Product	Office	Counties	Lasted
May 31, 6:46 PM CDT	Severe Thunderstorm Warning	LMK	Marion	29 min
May 31, 6:47 PM CDT	Tornado Warning	LMK	Taylor	43 min
May 31, 6:50 PM CDT	Tornado Warning	JKL	Powell	50 min
May 31, 7:03 PM CDT	Severe Thunderstorm Warning	JKL	Estill	47 min
May 31, 7:04 PM CDT	Severe Thunderstorm Warning	LMK	Casey	41 min
May 31, 7:17 PM CDT	Tornado Warning	LMK	Adair	28 min
May 31, 7:23 PM CDT	Severe Thunderstorm Warning	JKL	Pulaski	62 min
May 31, 7:29 PM CDT	Severe Thunderstorm Warning	JKL	Lee, Wolfe	56 min
May 31, 7:29 PM CDT	Severe Thunderstorm Warning	JKL	Lee, Wolfe	51 min
May 31, 7:33 PM CDT	Severe Thunderstorm Warning	LMK	Lincoln	27 min
May 31, 7:42 PM CDT	Severe Thunderstorm Warning	JKL	Breathitt	48 min
May 31, 7:43 PM CDT	Severe Thunderstorm Warning	LMK	Russell	32 min
May 31, 7:47 PM CDT	Tornado Warning	LMK	Casey	18 min
May 31, 8:02 PM CDT	Severe Thunderstorm Warning	LMK	Marion	33 min
May 31, 8:07 PM CDT	Severe Thunderstorm Warning	LMK	Hardin, Larue	38 min
May 31, 8:11 PM CDT	Tornado Warning	JKL	Pulaski	49 min
May 31, 8:23 PM CDT	Tornado Warning	JKL	McCreary	47 min
May 31, 8:24 PM CDT	Severe Thunderstorm Warning	LMK	Hart	36 min
May 31, 8:28 PM CDT	Flash Flood Warning	LMK	Marion	3 hr
May 31, 8:30 PM CDT	Flash Flood Warning	LMK	Taylor	90 min
May 31, 8:32 PM CDT	Severe Thunderstorm Warning	LMK	Green	48 min
May 31, 8:34 PM CDT	Severe Thunderstorm Warning	JKL	Laurel, Whitley	46 min
May 31, 8:48 PM CDT	Tornado Warning	LMK	Green	47 min
May 31, 8:55 PM CDT	Tornado Warning	JKL	Whitley	45 min
May 31, 9:05 PM CDT	Severe Thunderstorm Warning	JKL	Pulaski	45 min
May 31, 9:30 PM CDT	Severe Thunderstorm Warning	JKL	Bell, Knox	30 min
May 31, 9:55 PM CDT	Severe Thunderstorm Warning	JKL	Wayne	45 min
May 31, 10:05 PM CDT	Flash Flood Warning	LMK	Adair	2 hr
May 31, 10:16 PM CDT	Severe Thunderstorm Warning	OHX	Sumner	49 min
May 31, 10:22 PM CDT	Severe Thunderstorm Warning	OHX	Pickett	18 min
May 31, 10:40 PM CDT	Tornado Warning	OHX	Sumner	35 min
May 31, 10:45 PM CDT	Flash Flood Warning	JKL	Wayne	3 hr
May 31, 10:56 PM CDT	Flash Flood Warning	LMK	Russell	119 min

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 12:00Z, 11.3 hours before the alert went out and 213 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: 872 J/kg
Mixed-layer CIN: -199 J/kg
Mixed-layer LCL: 754 m above ground
0-6 km bulk shear: 23 kt
0-1 km storm-relative helicity: 73 m²/s²
0-3 km storm-relative helicity: 223 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.6

Open this sounding in Storm Lab

The text

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

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SPC that day

Everything else SPC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 31, 3:00 PM CDT	Severe Thunderstorm Watch	SPC	Anderson, Ballard, Bath, Boone, Bourbon, Boyle and 60 more	6 hr
May 31, 5:30 PM CDT	Tornado Watch	SPC	Boyd, Greenup, Johnson, Lawrence, Martin	7 hr

Nearby

Severe Thunderstorm Watches in Kentucky, 1998 Severe Thunderstorm Watches in Virginia, 1998 Severe Thunderstorm Watches in Tennessee, 1998 Every severe thunderstorm watch 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.