Alert archive / Indiana / Severe Thunderstorm Warnings in 1999

Severe Thunderstorm Warning 21, NWS Louisville, KY

February 27, 1999Dubois County, Orange County, Indiana

NWS Louisville, KY issued this severe thunderstorm warning at Feb 27, 1999, 4:52 PM EST for Dubois County, Orange County, Indiana. It was in force for 33 min. 3 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
Feb 27, 1999, 4:52 PM EST (21:52 UTC)
Expired
Feb 27, 1999, 5:25 PM EST
In force
33 min
Issued by
NWS Louisville, KY
Area
Whole counties

Counties Dubois County, IN, Orange County, IN

The radar

The Louisville radar (KLVX), 84 km from the middle of the area, began a volume at 21:52 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

TimeReportWhereRemark
Feb 27, 5:10 PM ESTHail 0.75French Lick, INDime size hail fell in French Lick
Feb 27, 5:15 PM ESTHail 1Dubois, INQuarter size hail fell in northeast part of county
Feb 27, 5:20 PM ESTHail 1Paoli, INOne inch hail fell in Paoli

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 nearest sounding before it

Lincoln, IL (KILX), launched 12:00Z, 9.9 hours before the alert went out and 250 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, Lincoln, IL at 12:00Z on 1999-02-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 107 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Lincoln, IL at 12:00Z on 1999-02-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 275 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
107 J/kg
Mixed-layer CIN
-160 J/kg
Mixed-layer LCL
635 m above ground
0-6 km bulk shear
35 kt
0-1 km storm-relative helicity
275 m²/s²
0-3 km storm-relative helicity
325 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

999 
WUUS1 KSDF 272153 RRA
SVRSDF
INC037-117-272225-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE LOUISVILLE KY
452 PM EST SAT FEB 27 1999

THE NATIONAL WEATHER SERVICE IN LOUISVILLE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHEASTERN DUBOIS COUNTY IN SOUTH CENTRAL INDIANA
  ORANGE COUNTY IN SOUTH CENTRAL INDIANA

* UNTIL 525 PM EST

* AT 450 PM EST...AREA LAW ENFORCEMENT INDICATED A SEVERE
  THUNDERSTORM NEAR JASPER...OR 40 MILES NORTHWEST OF LOUISVILLE...
  MOVING NORTHEAST AT 40 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  ELLSWORTH IMMEDIATELY
  FRENCH LICK BY 515 PM EST
  PAOLI BY 520 PM EST

THIS STORM PRODUCED QUARTER SIZE HAIL AS IT PASSED THROUGH JASPER.
GO INSIDE A STURDY BUILDING AND STAY AWAY FROM WINDOWS

CS/RNK


&

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, Feb 27, 4:30 PM EST, 22 minutes before
KYZ023>043-045>049-053>057-061>067-070>078-081-082-INZ076-079-083-
084-089>092-281200-

CENTRAL KENTUCKY AND SOUTH-CENTRAL INDIANA SEVERE WEATHER OUTLOOK
NATIONAL WEATHER SERVICE LOUISVILLE KY
430 PM EST SAT FEB 27 1999

THE STORM PREDICTION CENTER HAS INDICATED THAT A SLIGHT RISK OF
SEVERE THUNDERSTORMS EXISTS ACROSS CENTRAL KENTUCKY AND
SOUTH-CENTRAL INDIANA THIS EVENING AND OVERNIGHT.

SEVERE THUNDERSTORMS DEVELOPED THIS AFTERNOON ACROSS SOUTHERN
MISSOURI...ILLINOIS AND SOUTHWARD INTO ARKANSAS.  THESE
THUNDERSTORMS WERE ALONG AND AHEAD OF A COLD FRONT THAT WILL REACH
CENTRAL KENTUCKY AND SOUTH CENTRAL INDIANA OVERNIGHT.  HOWEVER...THE
FURTHER EAST THE STORMS TRAVEL THE MORE STABLE AIRMASS THEY WILL
ENCOUNTER.  ALTHOUGH PRESENT INDICATIONS ARE THAT THE STORMS WILL
WEAKEN DURING THE EVENING HOURS...SEVERE THUNDERSTORMS REMAIN
POSSIBLE.

THE MAIN THREAT FROM THESE STORMS IS LARGE HAIL AND DAMAGING WINDS.
HEAVY RAIN AND DANGEROUS LIGHTNING ALSO CAN BE EXPECTED.

THIS IS A PRELIMINARY OUTLOOK.  STAY TUNED TO NOAA WEATHER RADIO
FROM THE NATIONAL WEATHER SERVICE OR THE MEDIA FOR THE LATEST
INFORMATION ON THIS WEATHER SITUATION.

SKYWARN SPOTTER ACTIVATION MAY BE REQUESTED LATER TONIGHT.

RNK
Special weather statement, Feb 27, 4:30 PM EST, 22 minutes before
KYZ023>043-045>049-053>057-061>067-070>078-081-082-INZ076-079-083-
084-089>092-281200-

CENTRAL KENTUCKY AND SOUTH-CENTRAL INDIANA SEVERE WEATHER OUTLOOK
NATIONAL WEATHER SERVICE LOUISVILLE KY
430 PM EST SAT FEB 27 1999

THE STORM PREDICTION CENTER HAS INDICATED THAT A SLIGHT RISK OF
SEVERE THUNDERSTORMS EXISTS ACROSS CENTRAL KENTUCKY AND
SOUTH-CENTRAL INDIANA THIS EVENING AND OVERNIGHT.

SEVERE THUNDERSTORMS DEVELOPED THIS AFTERNOON ACROSS SOUTHERN
MISSOURI...ILLINOIS AND SOUTHWARD INTO ARKANSAS.  THESE
THUNDERSTORMS WERE ALONG AND AHEAD OF A COLD FRONT THAT WILL REACH
CENTRAL KENTUCKY AND SOUTH CENTRAL INDIANA OVERNIGHT.  HOWEVER...THE
FURTHER EAST THE STORMS TRAVEL THE MORE STABLE AIRMASS THEY WILL
ENCOUNTER.  ALTHOUGH PRESENT INDICATIONS ARE THAT THE STORMS WILL
WEAKEN DURING THE EVENING HOURS...SEVERE THUNDERSTORMS REMAIN
POSSIBLE.

THE MAIN THREAT FROM THESE STORMS IS LARGE HAIL AND DAMAGING WINDS.
HEAVY RAIN AND DANGEROUS LIGHTNING ALSO CAN BE EXPECTED.

THIS IS A PRELIMINARY OUTLOOK.  STAY TUNED TO NOAA WEATHER RADIO
FROM THE NATIONAL WEATHER SERVICE OR THE MEDIA FOR THE LATEST
INFORMATION ON THIS WEATHER SITUATION.

SKYWARN SPOTTER ACTIVATION MAY BE REQUESTED LATER TONIGHT.

RNK

The office that day

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

IssuedProductOfficeCountiesLasted
Feb 27, 5:22 PM ESTSevere Thunderstorm WarningLMKOrange, Washington28 min
Feb 27, 5:47 PM ESTSevere Thunderstorm WarningLMKOrange33 min
Feb 27, 6:10 PM ESTSevere Thunderstorm WarningLMKCrawford, Harrison, Washington35 min
Feb 27, 6:21 PM ESTTornado WarningLMKHarrison, Washington24 min
Feb 27, 6:44 PM ESTSevere Thunderstorm WarningLMKHarrison31 min

Nearby

Severe Thunderstorm Warnings in Indiana, 1999Every severe thunderstorm warning in 1999

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.