Alert archive / Kentucky / Severe Thunderstorm Warnings in 1989

Severe Thunderstorm Warning 48, NWS Indianapolis, IN

May 20, 1989Logan County, Simpson County, Todd County, Kentucky

NWS Indianapolis, IN issued this severe thunderstorm warning at May 20, 1989, 1:05 AM CDT for Logan County, Simpson County, Todd County, Kentucky. It was in force for 30 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 20, 1989, 1:05 AM CDT (06:05 UTC)
Expired
May 20, 1989, 1:35 AM CDT
In force
30 min
Issued by
NWS Indianapolis, IN
Area
Whole counties

Counties Logan County, KY, Simpson County, KY, Todd 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

TimeReportWhereRemark
May 20, 1:15 AM CDTThunderstorm Wind 0Logan, 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

Nashville Metro, TN (KBNA), launched 00:00Z, 6.1 hours before the alert went out and 80 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, Nashville Metro, TN at 00:00Z on 1989-05-20Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 999 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, Nashville Metro, TN at 00:00Z on 1989-05-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 210 square meters per square second.193958Sfc1 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
999 J/kg
Mixed-layer CIN
-18 J/kg
Mixed-layer LCL
1198 m above ground
0-6 km bulk shear
53 kt
0-1 km storm-relative helicity
210 m²/s²
0-3 km storm-relative helicity
414 m²/s²
Significant tornado parameter
1.4
Supercell composite
6.5

Open this sounding in Storm Lab

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, 7:54 PM CDT, 5 hours 11 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
752 PM EST FRI MAY 19 1989

AT 745 PM EST...A NARROW LINE OF VERY STRONG THUNDERSTORMS 10 MILES WIDE
EXTENDED FROM 10 MILES SOUTHWEST OF KOKOMO TO 20 MILES NORTHWEST OF
INDIANAPOLIS.

OTHER STRONG THUNDERSTORMS WERE NEAR FRANKLIN OR 20 MILES SOUTH OF
INDIANAPOLIS...AND 20 MILES SOUTHEAST OF BLOOMINGTON.

THE THUNDERSTORMS WERE MOVING NORTHEAST AT 35 MILES AN HOUR.

THE LINE OF THUNDERSTORMS WILL MOVE TO GREENTOWN...TIPTON...SHERIDAN
AND ZIONSVILLE AREAS BY 830 PM EST. OTHER STRONG STORMS WILL REACH THE
VINCINITY OF SHELBYVILLE AND BETWEEN BROWNSTOWN AND SEYMOUR ALSO BY
830 PM.

THE STRONGER THUNDERSTORMS WILL BE CAPABLE OF PRODUCING SMALL HAIL...
DANGEROUS LIGHTNING...VERY HEAVY RAIN...AND WIND GUSTS THAT MAY BE
CAPABLE OF BLOWING DOWN SOME SMALL TREE LIMBS.

PERSONS SHOULD LISTEN TO THIS SAME SOURCE FOR LATER STATEMENTS AND
POSSIBLE WARNINGS.
STEIGERWALDT
Special weather statement, May 19, 8:26 PM CDT, 4 hours 39 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
825 PM EST FRI MAY 19 1989

SHOWERS AND A FEW STRONG THUNDERSTORMS WITH HEAVY RAIN WERE SCATTERED
THROUGHOUT CENTRAL AND SOUTHERN INDIANA.

ONE NARROW BAND OF STORMS WAS FROM 10 MILES NORTHWEST OF KOKOMO TO
20 MILES NORTHWEST OF INDIANAPOLIS TO 25 MILES WEST OF INDIANAPOLIS
NEAR ROACHDALE.

ANOTHER NARROW BAND OF STORMS WAS FROM GREENFIELD TO COLUMBUS.
OTHER STORMS WERE WEST AND SOUTH OF BLOOMINGTON TO SEYMOUR AND SOUTH
TO THE OHIO RIVER.

THE PRECIPITATION WAS MOVING NORTHEAST AT 30 MPH. SEVERAL FUNNEL CLOUDS
AND SMALL TORNADOES HAVE OCCURED IN SOUTHERN INDIANA THIS EVENING BUT
NO SEVERE WEATHER HAS BEEN REPORTED IN CENTRAL INDIANA BETWEEEN 630 AND
820 PM. IF THREATENING WEATHER OR FUNNEL CLOUDS ARE SIGHTED GET TO THE
BASEMENT OR INTERIOR PART OF A HOME OR BUILDING.

SMALL SHORT LIVED TORNADOES AND FUNNEL CLOUDS ARE NEARLY IMPOSSIBLE TO
DETECT ON RADAR. PLEASE REPORT SEVERE WEATHER TO THE NEAREAST LAW
ENFORCEMENT AGENCY FOR REALY TO THE WEATHER SERVICE.

ALLSOPP
Local storm report, May 19, 8:43 PM CDT, 4 hours 22 minutes before
LOCAL STORM REPORT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
840 PM EST FRI MAY 19 1989

604 PM EST   A SMALL TORNADO TOUCHED DOWN 7 MILES WEST OF SPENCER IN
             OWEN COUNTY ON STATE ROAD 46. A HOUSE TRAILER WAS
             OVERTURNED...A FEW TREES WERE UPROOTED AND POWER LINES
             WERE DOWNED. THE DAMAGE WAS ISOLATED ON A HILLTOP.
             REPORTED BY OWEN COUNTY SHERIFFS DEPARTMENT.

ALLSOPP

The office that day

Everything else NWS Indianapolis, IN issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 19, 7:17 PM CDTTornado WarningINDVanderburgh, Warrick28 min
May 19, 7:40 PM CDTTornado WarningINDGibson50 min
May 19, 7:59 PM CDTSevere Thunderstorm WarningINDDubois, Pike46 min
May 19, 7:59 PM CDTSevere Thunderstorm WarningINDPerry, Spencer46 min
May 19, 7:27 PM CDTTornado WarningINDDaviess, Hancock33 min
May 19, 8:30 PM CDTSevere Thunderstorm WarningINDDaviess, Henderson, Union45 min
May 19, 8:30 PM CDTSevere Thunderstorm WarningINDHancock45 min
May 19, 9:23 PM CDTSevere Thunderstorm WarningINDDaviess, Hancock52 min
May 19, 9:37 PM CDTTornado WarningINDDaviess, Hancock38 min

Nearby

Severe Thunderstorm Warnings in Kentucky, 1989Every severe thunderstorm warning in 1989

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.