Alert archive / Indiana / Severe Thunderstorm Warnings in 1999
Severe Thunderstorm Warning 13, NWS Louisville, KY
NWS Louisville, KY issued this severe thunderstorm warning at Feb 11, 1999, 9:22 PM EST for Crawford County, Perry County, Indiana. It was in force for 18 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Feb 11, 1999, 9:22 PM EST (02:22 UTC)
- Expired
- Feb 11, 1999, 9:40 PM EST
- In force
- 18 min
- Issued by
- NWS Louisville, KY
- Area
- Whole counties
Counties Crawford County, IN, Perry County, IN
The radar
The Louisville radar (KLVX), 58 km from the middle of the area, began a volume at 02:23 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.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Feb 11, 9:00 PM EST | Severe Thunderstorm Watch | SPC | 5 hr |
The nearest sounding before it
Nashville Metro, TN (KBNA), launched 00:00Z, 2.4 hours before the alert went out and 229 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.
- Mixed-layer CAPE
- 264 J/kg
- Mixed-layer CIN
- -106 J/kg
- Mixed-layer LCL
- 1094 m above ground
- 0-6 km bulk shear
- 49 kt
- 0-1 km storm-relative helicity
- 255 m²/s²
- 0-3 km storm-relative helicity
- 348 m²/s²
- Significant tornado parameter
- 0.2
- Supercell composite
- 0.7
The text
As transmitted, in the capitals the NWS used until 2016.
999 WUUS1 KSDF 120225 RRA SVRSDF INC025-123-120240- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE LOUISVILLE KY 922 PM EST THU FEB 11 1999 THE NATIONAL WEATHER SERVICE IN LOUISVILLE HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... CRAWFORD COUNTY IN SOUTH CENTRAL INDIANA NORTHERN PERRY COUNTY IN SOUTH CENTRAL INDIANA * UNTIL 940 PM EST * AT 922 PM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 5 MILES NORTHWEST OF TELL CITY...45 MILES WEST OF LOUISVILLE... MOVING NORTHEAST AT 40 MPH. * THE SEVERE THUNDERSTORM WILL BE NEAR... BRISTOW IMMEDIATELY ENGLISH BY 930 PM EST DAMAGING WINDS AND HEAVY RAIN ARE LIKELY. GO INSIDE A STURDY BUILDING AND STAY AWAY FROM WINDOWS REC/DK
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 11, 4:00 PM EST, 5 hours 22 minutes before
KYZ023>043-045>049-053>057-061>067-070>078-081-082-INZ076-079-083- 084-089>092-120000- CENTRAL KENTUCKY AND SOUTH-CENTRAL INDIANA SEVERE WEATHER OUTLOOK NATIONAL WEATHER SERVICE LOUISVILLE KY 400 PM EST THU FEB 11 1999 THE STORM PREDICTION CENTER HAS INDICATED THAT A SLIGHT RISK OF SEVERE THUNDERSTORMS EXISTS ACROSS CENTRAL KENTUCKY AND SOUTH-CENTRAL INDIANA OVERNIGHT. A VIGOROUS COLD FRONT NEAR THE MID MISSISSIPPI VALLEY WILL MOVE EAST INTO THE OHIO VALLEY OVERNIGHT BEFORE REACHING EASTERN KENTUCKY BY FRIDAY MORNING. THE INTERACTION OF THE COLD FRONT WITH A WARM...MOIST UNSTABLE AIRMASS AHEAD OF IT...WILL CAUSE THE DEVELOPMENT OF THUNDERSTORMS ACROSS CENTRAL KENTUCKY AND SOUTH-CENTRAL INDIANA...AND AFTER MIDNIGHT ACROSS EAST-CENTRAL KENTUCKY. THUNDERSTORMS SHOULD DEVELOP IN THE LOUISVILLE AND BOWLING GREEN VICINITIES AFTER 9 PM EST AND IN THE LEXINGTON AREA SHORTLY AFTER MIDNIGHT. THE PRIMARY THREAT FROM THESE STORMS WILL BE DAMAGING WINDS...HOW- EVER AN ISOLATED TORNADO CAN NOT BE RULED OUT. ONE OTHER NOTE... SIGNIFICANT WINDS...NOT ASSOCIATED WITH THUNDERSTORMS SHOULD INCREASE WEST OF INTERSTATE 75 THIS EVENING. THESE WINDS...WITH POTENTIAL WIND GUSTS OF 40 MPH OR MORE...MAY BE STRONG ENOUGH TO BLOW AROUND OBJECTS NOT TIED DOWN...AS WELL AS SOME TREE LIMBS. THIS IS A PRELIMINARY OUTLOOK. STAY TUNED TO NOAA WEATHER RADIO FROM THE NATIONAL WEATHER SERVICE OR COMMERCIAL AND LOCAL MEDIA FOR THE LATEST INFORMATION ON THIS WEATHER SITUATION. SKYWARN SPOTTER ACTIVATION MAY BE REQUESTED OVERNIGHT. JA
The office that day
Everything else NWS Louisville, KY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 11, 9:30 PM EST | Severe Thunderstorm Warning | LMK | Orange, Washington | 20 min |
| Feb 11, 9:56 PM EST | Severe Thunderstorm Warning | LMK | Scott, Washington | 34 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.