Alert archive / Kentucky / Flash Flood Warnings in 1991

Flash Flood Warning 20, NWS Louisville, KY

December 2, 19914 counties in Kentucky

NWS Louisville, KY issued this flash flood warning at Dec 2, 1991, 8:40 PM EST for 4 counties in Kentucky. It was in force for 4 hr.

The area

The counties it named.

The facts

Issued
Dec 2, 1991, 8:40 PM EST (01:40 UTC)
Expired
Dec 3, 1991, 12:45 AM EST
In force
4 hr
Issued by
NWS Louisville, KY
Area
Whole counties

Counties Anderson County, KY, Franklin County, KY, Mercer County, KY, Woodford County, KY

The nearest sounding before it

Huntington/Tri S, WV (KHTS), launched 00:00Z, 1.7 hours before the alert went out and 211 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, Huntington/Tri S, WV at 00:00Z on 1991-12-03Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Huntington/Tri S, WV at 00:00Z on 1991-12-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 483 square meters per square second.1939587897Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
525 m above ground
0-6 km bulk shear
75 kt
0-1 km storm-relative helicity
483 m²/s²
0-3 km storm-relative helicity
804 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

The office that day

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

IssuedProductOfficeCountiesLasted
Dec 2, 7:44 PM ESTFlash Flood WarningLMKAdair, Casey, Cumberland3 hr
Dec 2, 8:19 PM ESTFlash Flood WarningLMKClinton, Russell3 hr
Dec 2, 8:39 PM ESTFlash Flood WarningLMKHardin, Larue, Nelson3 hr
Dec 2, 8:40 PM ESTFlash Flood WarningLMKScott4 hr
Dec 2, 9:10 PM ESTFlash Flood WarningLMKLincoln3 hr
Dec 2, 9:31 PM ESTFlash Flood WarningLMKPulaski, Rockcastle, Wayne3 hr
Dec 2, 9:42 PM ESTFlash Flood WarningLMKSpencer3 hr
Dec 2, 9:58 PM ESTFlash Flood WarningLMKMarion, Washington2 hr
Dec 2, 10:06 PM ESTFlash Flood WarningLMKLaurel, McCreary, Whitley3 hr
Dec 2, 10:28 PM ESTFlash Flood WarningLMKMenifee4 hr
Dec 2, 11:17 PM ESTFlash Flood WarningLMKClinton, Russell73 min
Dec 2, 11:17 PM ESTFlash Flood WarningLMKCasey73 min

Nearby

Flash Flood Warnings in Kentucky, 1991Every flash flood warning in 1991

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.