Alert archive / Indiana / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 16, NWS Louisville, KY
NWS Louisville, KY issued this severe thunderstorm warning at Feb 21, 1997, 9:44 AM EST for Jefferson County, Indiana. It was in force for 31 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 21, 1997, 9:44 AM EST (14:44 UTC)
- Expired
- Feb 21, 1997, 10:15 AM EST
- In force
- 31 min
- Issued by
- NWS Louisville, KY
- Area
- Whole counties
County Jefferson County, IN
The radar
The Louisville radar (KLVX), 100 km from the middle of the area, began a volume at 14:45 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 21, 9:00 AM EST | Severe Thunderstorm Watch | SPC | 4 hr |
The nearest sounding before it
Cncnati-Daytn, OH (KILN), launched 12:00Z, 2.7 hours before the alert went out and 159 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1012 m above ground
- 0-6 km bulk shear
- 48 kt
- 0-1 km storm-relative helicity
- 205 m²/s²
- 0-3 km storm-relative helicity
- 306 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KSDF 211446 RRA SVRSDF INC077-211515- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE LOUISVILLE KY 944 AM EST FRI FEB 21 1997 THE NATIONAL WEATHER SERVICE IN LOUISVILLE HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1015 AM EST FOR PERSONS IN THE FOLLOWING LOCATION... IN SOUTH INDIANA ...JEFFERSON COUNTY AT 945 AM EST...WEATHER SERVICE DOPPLER RADAR INDICATED A LINE OF SEVERE THUNDERSTORMS ALONG THE SCOTT-JEFFERSON COUNTY INDIANA BORDER...OR ABOUT 30 MILES NORTH-NORTHEAST OF LOUISVILLE. THE STORMS ARE MOVING NORTHEAST AT 50 MPH. TOWNS IN THE PATH OF THESE STORMS INCLUDE DUPONT...SMYRNA AND MADISON. IF YOU ARE CAUGHT OUTSIDE...FIND SHELTER FROM THE WEATHER IN A STRONG BUILDING. DAMAGING WIND...LARGE HAIL...VERY HEAVY RAIN... AND DEADLY LIGHTNING ARE ALL POSSIBLE IN SEVERE THUNDERSTORMS. STAY INSIDE AWAY FROM WINDOWS UNTIL THE STORM HAS PASSED. FUNK/COX
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 21, 4:45 AM EST, 4 hours 59 minutes before
KYZ001>100-104-106>120-INZ076>079-083-084-089>092-211800- KENTUCKY AND SOUTH CENTRAL INDIANA SEVERE WEATHER OUTLOOK NATIONAL WEATHER SERVICE LOUISVILLE KY 445 AM EST FRI FEB 21 1997 LOW PRESSURE IN OKLAHOMA WILL MOVE TO NORTHERN OHIO THIS EVENING... WHILE A COLD FRONT TRAILING FROM THE LOW ADVANCES TOWARD THE OHIO VALLEY. AS THE LOW AND COLD FRONT MOVE CLOSER TO THE REGION TWO ROUNDS OF THUNDERSTORMS ARE EXPECTED. THE FIRST ROUND OF STORMS ACROSS WEST KENTUCKY THIS MORNING SHOULD RACE TO THE MOUNTAINS OF EAST KENTUCKY IN THE AFTERNOON. A SECOND ROUND OF STORMS WILL THEN REDEVELOP ACROSS WEST KENTUCKY THIS AFTERNOON AND RACE EASTWARD TONIGHT. BOTH BATCHES OF THUNDERSTORMS COULD CONTAIN DAMAGING WINDS AND LARGE HAIL. THIS IS A PRELIMINARY OUTLOOK. STAY TUNED TO NATIONAL WEATHER SERVICE RADIO FOR THE LATEST INFORMATION ON THIS POTENTIALLY DANGEROUS WEATHER SITUATION. SKYWARN SPOTTER ACTIVATION MAY BE REQUESTED TODAY. STUREY
The office that day
Everything else NWS Louisville, KY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 21, 7:54 AM EST | Severe Thunderstorm Warning | LMK | Orange | 21 min |
| Feb 21, 8:22 AM EST | Severe Thunderstorm Warning | LMK | Perry | 38 min |
Nearby
Severe Thunderstorm Warnings in Indiana, 1997Every severe thunderstorm warning in 1997
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.