Alert archive / Kentucky / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 60, NWS Charleston, WV

May 24, 1998Greenup County, Kentucky

NWS Charleston, WV issued this severe thunderstorm warning at May 24, 1998, 4:53 PM EDT for Greenup County, Kentucky. It was in force for 52 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 24, 1998, 4:53 PM EDT (20:53 UTC)
Expired: May 24, 1998, 5:45 PM EDT
In force: 52 min
Issued by: NWS Charleston, WV
Area: Whole counties

County Greenup County, KY

The radar

The Charleston,WV radar (KRLX), 108 km from the middle of the area, began a volume at 20:56 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.

What was reported inside it

Time	Report	Where	Remark
May 24, 5:13 PM EDT	Hail 0.75	Lloyd, 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.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
May 24, 2:30 PM EDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 12:00Z, 8.9 hours before the alert went out and 124 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: 8 J/kg
Mixed-layer CIN: -197 J/kg
Mixed-layer LCL: 638 m above ground
0-6 km bulk shear: 53 kt
0-1 km storm-relative helicity: 87 m²/s²
0-3 km storm-relative helicity: 117 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.2

Open this sounding in Storm Lab

The text

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

250 
WUUS1 KCRW 242054 RRA
SVRCRW
KYC089-242145-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE CHARLESTON WV
453 PM EDT SUN MAY 24 1998
 
THE NATIONAL WEATHER SERVICE IN CHARLESTON HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  545 PM EDT
FOR PEOPLE IN THE FOLLOWING LOCATION......
 
IN EAST KENTUCKY
 
   ...NORTHERN GREENUP COUNTY
 
AT 450 PM...NATIONAL WEATHER SERVICE RADAR SHOWED A SEVERE THUNDERSTORM
ENTERING WESTERN GREENUP COUNTY NEAR SOUTH PORTSMOUTH. THIS STORM WAS
TRACKING EAST AT 30 MILES AN HOUR AND WILL REACH SOUTH SHORE BY 510 PM.
 
 
<< CALL TO ACTION >> THIS IS A DANGEROUS STORM.  IF YOU ARE IN ITS
PATH YOU SHOULD PREPARE FOR DAMAGING WIND IN EXCESS OF 55 MPH...
LARGE HAIL...AND DEADLY LIGHTNING.  PEOPLE OUTSIDE SHOULD MOVE TO A S
PREFERABLY INSIDE A STRONG BUILDING BUT STAY AWAY FROM WINDOWS.

The office that day

Everything else NWS Charleston, WV issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 24, 3:39 PM EDT	Severe Thunderstorm Warning	RLX	Greenup	51 min
May 24, 3:46 PM EDT	Severe Thunderstorm Warning	RLX	Carter	14 min
May 24, 4:15 PM EDT	Tornado Warning	RLX	Greenup	30 min
May 24, 4:25 PM EDT	Severe Thunderstorm Warning	RLX	Boyd	50 min
May 24, 6:27 PM EDT	Severe Thunderstorm Warning	RLX	Greenup	33 min
May 24, 6:34 PM EDT	Severe Thunderstorm Warning	RLX	Boyd	41 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.