Alert archive / Kentucky / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 64, NWS Paducah, KY
NWS Paducah, KY issued this severe thunderstorm warning at Apr 30, 1997, 6:21 PM CDT for Graves County, McCracken County, Kentucky. It was in force for 39 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
- Apr 30, 1997, 6:21 PM CDT (23:21 UTC)
- Expired
- Apr 30, 1997, 7:00 PM CDT
- In force
- 39 min
- Issued by
- NWS Paducah, KY
- Area
- Whole counties
Counties Graves County, KY, McCracken County, KY
The radar
The Paducah radar (KPAH), 22 km from the middle of the area, began a volume at 23:22 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 |
|---|---|---|---|
| Apr 30, 6:45 PM CDT | Thunderstorm Wind | Melber, KY | |
| Apr 30, 6:47 PM CDT | Hail 1.75 | Paducah, KY | |
| Apr 30, 6:50 PM CDT | Thunderstorm Wind 50 | Lowes, 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
Lincoln, IL (KILX), launched 12:00Z, 11.4 hours before the alert went out and 363 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
- 1130 m above ground
- 0-6 km bulk shear
- 45 kt
- 0-1 km storm-relative helicity
- 115 m²/s²
- 0-3 km storm-relative helicity
- 166 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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.
NWS Paducah, KY wrote its last area forecast discussion before this severe thunderstorm warning went out at Apr 30, 1:17 PM CDT, 5 hours 4 minutes earlier.
Area forecast discussion, Apr 30, 1:17 PM CDT, 5 hours 4 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE PADUCAH KY 115 PM CDT WED APR 30 1997 INITIAL FORECAST PROBLEM IS COLD FRONT MOVING ACROSS MISSOURI AT 17Z. MORNING RAOBS AND RUC DATA INDICATE STRONG CAPPING OVER THE REGION SHOULD WEAKEN AS DAYTIME HEATING AND WARM MOIST ADVECTION CONTINUE. 700 MB COOLING IS PROGGED TO BEGIN LATE THIS AFTERNOON...WHICH WOULD ERASE THE CAP AROUND THE TIME OF FRONTAL PASSAGE. KLSX RADAR AT 18Z SHOWS INTENSE CONVECTION OVER NE MISSOURI. WILL HAVE TO MONITOR FOR MORE CONVECTION DEVELOPING SOUTHWARD THIS AFTERNOON AND EVENING. HIGHER CHANCE OF STORM DEVELOPMENT SHOULD BE TO THE NORTH...WHERE CAP IS WEAKER AND DYNAMIC FORCING WILL BE STRONGER. FRONTAL PASSAGE SHOULD BE AROUND 02Z AT KPAH AND 03-04Z AT KEVV. THIS SHOULD END THUNDERSTORM THREAT. COLD AIR ADVECTION BEHIND FRONT IS FAIRLY IMPRESSIVE. NGM BRINGS 850 ZERO DEGREE ISOTHERM DOWN TO KEVV BY 12Z THURSDAY. HOWEVER...THE ATMOSPHERE SHOULD REMAIN WELL MIXED AS BOUNDARY LAYER WINDS STAY AROUND 20 KNOTS OVERNIGHT. FWC AND FAN INDICATE UPPER 40S FOR LOWS TONIGHT...WHICH LOOKS REASONABLE. SURFACE HIGH PRESSURE WILL CROSS THE FA THURSDAY...ENDING THE COLD ADVECTION. NGM EVEN HINTS AT RETURN FLOW BY 00Z FRIDAY. TEMPS SHOULD RECOVER NICELY WITH STRONG SOLAR HEATING AND NEUTRAL TEMP ADVECTION. FAN/FWC HIGHS APPEAR IN THE BALLPARK. MY
In the hours before
Local storm report, Apr 30, 4:29 PM CDT, 1 hour 52 minutes before
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</html>Special weather statement, Apr 30, 5:45 PM CDT, 36 minutes before
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</html>Local storm report, Apr 30, 6:12 PM CDT, 9 minutes before
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</html>The office that day
Everything else NWS Paducah, KY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 30, 6:03 PM CDT | Severe Thunderstorm Warning | PAH | Carlisle | 42 min |
| Apr 30, 6:51 PM CDT | Severe Thunderstorm Warning | PAH | Livingston, Marshall | 39 min |
| Apr 30, 5:51 PM CDT | Severe Thunderstorm Warning | PAH | Mississippi | 39 min |
| Apr 30, 4:19 PM CDT | Severe Thunderstorm Warning | PAH | Jefferson, Wayne | 41 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.