Alert archive / Kentucky / Severe Thunderstorm Warnings in 1991

Severe Thunderstorm Warning 21, NWS Jackson, KY

June 2, 1991Knott County, Letcher County, Kentucky

NWS Jackson, KY issued this severe thunderstorm warning at Jun 2, 1991, 9:27 PM EDT for Knott County, Letcher County, Kentucky. It was in force for 63 min. 2 reports 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
Jun 2, 1991, 9:27 PM EDT (01:27 UTC)
Expired
Jun 2, 1991, 10:30 PM EDT
In force
63 min
Issued by
NWS Jackson, KY
Area
Whole counties

Counties Knott County, KY, Letcher County, KY

What was reported inside it

TimeReportWhereRemark
Jun 2, 9:30 PM EDTThunderstorm Wind 0Knott, KY
Jun 2, 10:15 PM EDTThunderstorm Wind 0Letcher, 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

Huntington/Tri S, WV (KHTS), launched 00:00Z, 1.5 hours before the alert went out and 131 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-pSkew-T log-p diagram, Huntington/Tri S, WV at 00:00Z on 1991-06-03Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 312 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Huntington/Tri S, WV at 00:00Z on 1991-06-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 69 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
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
312 J/kg
Mixed-layer CIN
-79 J/kg
Mixed-layer LCL
1047 m above ground
0-6 km bulk shear
25 kt
0-1 km storm-relative helicity
69 m²/s²
0-3 km storm-relative helicity
132 m²/s²
Significant tornado parameter
0.1
Supercell composite
1.3

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KJKL 030127
SVRJKL
KYC119-131-133-030230-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING 
NATIONAL WEATHER SERVICE JACKSON  KY
927 PM EDT SUN JUN 2 1991

THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM 
WARNING EFFECTIVE UNTIL 1030 PM EDT FOR PEOPLE IN THE FOLLOWING 
COUNTIES

   IN THE SOUTHEAST PART OF KENTUCKY
      KNOTT...LESLIE...LETCHER

AT 920 PM RADAR SHOWED A SEVERE THUNDERSTORM MOVING INTO LESLIE
COUNTY...ABOUT 20 MILES WEST OF HAZARD AND ANOTHER IN KNOT COUNTY
...20 MILES EAST OF HAZARD. RESIDENTS OF HYDEN...WHITSBURG AND
HINDMAN SHOULD BE PREPARED FOR THESE SEVERE THUNDERSTORMS AS THEY
MOVE SOUTHEAST AT 20 MILES AN HOUR.

WHEN THUNDERSTORMS ARE OCCURRING..YOU SHOULD MOVE INSIDE A STRONG
BUILDING. DO NOT STAND BY WINDOWS. DO NOT USE TELEPHONES OR
ELECTRICAL APPLICANCES UNLESS IN AN EMERGENCY UNTIL THE STORM HAS
PASSED. MOTORISTS SHOULD NOT DRIVE INTO LOW WATER CROSSINGS.

ASK THE NEAREST LAW ENFORCEMENT AGENCY TO RELAY YOUR REPORTS OF
SEVERE WEATHER TO THE NATIONAL WEATHER SERVICE OFFICE IN JACKSON

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, Jun 2, 7:59 PM EDT, 1 hour 28 minutes before
KYZ008-030100-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSON KY
800 AM EDT SUN JUN 2 1991

...STRONG THUNDERSTORMS MOVING INTO SOUTHEAST KENTUCKY...

AT 8 PM STRONG THUNDERSTORMS WERE MOVING INTO THE NORTHERN AND
WESTERN COUNTIES OF SOUTHEAST KENTUCKY. THE STRONGEST THUNDERSTORMS
WERE JUST WEST OF WEST LIBERTY IN MORGAN COUNTY...OR ABOUT 20 MILES
NORTH OF JACKSON AND ANOTHER WAS JUST WEST OF BEATYVILLE...OR 25 MILES
WEST OF JACKSON. THE STORMS WERE MOVING SOUTHEAST AT 20 MILES AN HOUR.

THESE THUNDERSTORMS WILL PRODUCE VERY HEAVY RAIN...DANGEROUS LIGHTNING
...GUSTY WINDS AND POSSIBLY SMALL HAIL.

WHEN THUNDERSTORMS APPROACH YOU SHOULD MOVE TO A SAFE INDOOR SHELTER
AND REMAIN UNTIL THE STORMS HAVE PASSED.

STAY TUNED TO NOAA WEATHER RADIO FOR THE LATEST WEATHER INFORMATION.
Special weather statement, Jun 2, 8:25 PM EDT, 1 hour 2 minutes before
KYZ008-030130-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSON KY
825 PM EDT SUN JUN 2 1991

...STRONG THUNDERSTORMS MOVING THROUGH SOUTHEAST KENTUCKY...

AT 820 PM STRONG THUNDERSTORMS WERE MOVING THROUGH PARTS OF SOUTHEAST
KENTUCKY. THE STRONGEST THUNDERSTORMS WERE BETWEEN BEATYVILLE AND
BOONEVILLE...OR 20 MILES SOUTHWEST OF JACKSON AND FROM JUST NORTH OF
JACKSON TO NEAR PRESTONSBURG. MOVEMENT WAS SOUTHEAST AT 20 MILES AN
HOUR.

THESE THUNDERSTORMS WILL PRODUCE VERY HEAVY RAIN WHICH COULD QUICKLY
FLOOD SMALL CREEKS AND LOW LYING AREAS. DANGEROUS LIGHTNING...GUSTY
WINDS AND SMALL HAIL ARE ALSO POSSIBLE.

WHEN THUNDERSTORMS APPROACH YOU SHOULD MOVE TO A SAFE INDOOR SHELTER
AND REMAIN UNTIL THE STORMS HAVE PASSED.
STAY TUNED TO NOAA WEATHER RADIO FOR THE LATEST WEATHER INFORMATION.
ADDINGTON

The office that day

Everything else NWS Jackson, KY issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 2, 8:42 PM EDTSevere Thunderstorm WarningJKLFloyd, Pike63 min
Jun 2, 9:27 PM EDTSevere Thunderstorm WarningJKLLeslie63 min
Jun 3, 5:24 PM EDTSevere Thunderstorm WarningJKLBell66 min
Jun 3, 6:02 PM EDTSevere Thunderstorm WarningJKLHarlan58 min

Nearby

Severe Thunderstorm Warnings in Kentucky, 1991Every severe thunderstorm warning in 1991

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.