Alert archive / Kentucky / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 39, NWS Louisville, KY
NWS Louisville, KY issued this severe thunderstorm warning at Mar 28, 1997, 4:52 PM CST for Grayson County, Kentucky. It was in force for 38 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
- Mar 28, 1997, 4:52 PM CST (22:52 UTC)
- Expired
- Mar 28, 1997, 5:30 PM CST
- In force
- 38 min
- Issued by
- NWS Louisville, KY
- Area
- Whole counties
County Grayson County, KY
The radar
The Louisville radar (KLVX), 67 km from the middle of the area, began a volume at 22:55 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
| Time | Report | Where | Remark |
|---|---|---|---|
| Mar 28, 5:10 PM CST | Hail 1.75 | Leitchfield, 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.
The nearest sounding before it
Nashville Metro, TN (KBNA), launched 12:00Z, 10.9 hours before the alert went out and 150 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
- 554 m above ground
- 0-6 km bulk shear
- 72 kt
- 0-1 km storm-relative helicity
- 287 m²/s²
- 0-3 km storm-relative helicity
- 292 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.4
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KSDF 282253 RRA SVRSDF KYC085-282330- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE LOUISVILLE KY 552 PM EST (452 PM CST) FRI MAR 28 1997 THE NATIONAL WEATHER SERVICE IN LOUISVILLE HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 630 PM EST (530 PM CST) FOR PERSONS IN THE FOLLOWING LOCATION... IN SOUTH CENTRAL KENTUCKY ...GRAYSON COUNTY AT 450 PM CST...NWS DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 35 MILES NORTH OF BOWLING GREEN NEAR THE BUTLER/GRAYSON COUNTY LINE. THIS STORMS IS MOVING NORTHEAST AT 30 MPH AND SHOULD AFFECT LEITCHFIELD BY 515 PM CST. LARGE HAIL IS POSSIBLE WITH THIS THUNDERSTORM. A TORNADO WATCH IS ALSO IN EFFECT FOR THE WARNED AREA. REMEMBER SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES WITH LITTLE OR NO ADVANCE WARNING. REMAIN CALM BUT BE ALERT TO RAPIDLY CHANGING WEATHER CONDITIONS. TF/VLD
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, Mar 28, 11:02 AM CST, 5 hours 50 minutes before
KYZ023>025-027>043-045>049-053>057-061>067-070>078-081-082- INZ076>079-083-084-089>092-290600- CENTRAL KENTUCKY AND SOUTH-CENTRAL INDIANA SEVERE WEATHER OUTLOOK NATIONAL WEATHER SERVICE LOUISVILLE KY 1145 AM EST FRI MAR 28 1997 THE STORM PREDICTION CENTER INDICATES THAT A MODERATE RISK OF SEVERE THUNDERSTORMS EXISTS ACROSS ALL OF CENTRAL KENTUCKY AND SOUTH-CENTRAL INDIANA...MAINLY FOR THIS EVENING. THIS IS A POTENTIALLY DANGEROUS WEATHER SITUATION. A WARM FRONT WILL MOVE ACROSS CENTRAL KENTUCKY AND SOUTH-CENTRAL INDIANA EARLY THIS AFTERNOON. THIS WILL ALLOW LOW CLOUDS TO GIVE WAY TO PARTIAL SUNSHINE BY MID OR LATE THIS AFTERNOON AS A BRISK SOUTHWEST FLOW OF AIR DEVELOPS ACROSS THE REGION. THIS FLOW WILL ALLOW THE ATMOSPHERE TO BECOME UNSTABLE LATE THIS AFTERNOON AND THIS EVENING. THEN AS A COLD FRONT AND POTENT UPPER-LEVEL WEATHER DISTURBANCE APPROACH FROM THE WEST...THUNDERSTORMS SHOULD DEVELOP ACROSS WESTERN KENTUCKY LATE THIS AFTERNOON THEN PROGRESS ACROSS CENTRAL KENTUCKY AND SOUTH-CENTRAL INDIANA DURING THE EVENING HOURS BRINGING THE THREAT FOR SEVERE WEATHER. WITH THE ATMOSPHERE EXPECTED TO BE UNSTABLE ALONG WITH THE PRESENCE OF STRONG UPPER-LEVEL WINDS AND WIND SHEAR...THE POTENTIAL EXISTS FOR DAMAGING WINDS...LARGE HAIL...AND A FEW TORNADOES ACROSS CENTRAL KENTUCKY AND SOUTH-CENTRAL INDIANA THIS EVENING. SPOTTER ACTIVATION MAY BE NEEDED LATE THIS AFTERNOON AND EVENING. THIS IS A PRELIMINARY OUTLOOK...STAY TUNED TO NATIONAL WEATHER SERVICE NOAA WEATHER RADIO AND/OR MEDIA SOURCES FOR THE LATEST INFORMATION ON THIS WEATHER SITUATION. FUNK
The office that day
Everything else NWS Louisville, KY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 28, 4:33 PM CST | Severe Thunderstorm Warning | LMK | Breckinridge | 42 min |
| Mar 28, 5:01 PM CST | Severe Thunderstorm Warning | LMK | Hardin | 44 min |
| Mar 28, 5:15 PM CST | Severe Thunderstorm Warning | LMK | Logan | 30 min |
| Mar 28, 5:15 PM CST | Severe Thunderstorm Warning | LMK | Bullitt | 45 min |
| Mar 28, 5:26 PM CST | Severe Thunderstorm Warning | LMK | Edmonson, Warren | 34 min |
| Mar 28, 5:37 PM CST | Severe Thunderstorm Warning | LMK | Grayson, Hardin | 38 min |
| Mar 28, 5:46 PM CST | Tornado Warning | LMK | Hardin | 29 min |
| Mar 28, 5:49 PM CST | Severe Thunderstorm Warning | LMK | Hart | 41 min |
| Mar 28, 5:59 PM CST | Severe Thunderstorm Warning | LMK | Larue, Nelson, Spencer | 46 min |
Nearby
Severe Thunderstorm Warnings in Kentucky, 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.