Alert archive / Kentucky / Flash Flood Warnings in 1990

Flash Flood Warning 42, NWS Jackson, KY

December 23, 1990Lee County, Kentucky

NWS Jackson, KY issued this flash flood warning at Dec 23, 1990, 1:10 AM EST for Lee County, Kentucky. It was in force for 5 hr.

The area

The counties it named.

The facts

Issued
Dec 23, 1990, 1:10 AM EST (06:10 UTC)
Expired
Dec 23, 1990, 6:00 AM EST
In force
5 hr
Issued by
NWS Jackson, KY
Area
Whole counties

County Lee County, KY

The radar

The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.

The nearest sounding before it

Huntington/Tri S, WV (KHTS), launched 00:00Z, 6.2 hours before the alert went out and 137 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 1990-12-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 7 joules per kilogram.LCLLFCEL10008507005003002001001 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 1990-12-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 153 square meters per square second.1939587897117Sfc1 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
7 J/kg
Mixed-layer CIN
-44 J/kg
Mixed-layer LCL
676 m above ground
0-6 km bulk shear
57 kt
0-1 km storm-relative helicity
153 m²/s²
0-3 km storm-relative helicity
122 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 Jackson, KY issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Dec 22, 8:10 PM ESTFlash Flood WarningJKLBell7 hr
Dec 22, 10:09 PM ESTFlash Flood WarningJKLKnox111 min
Dec 22, 11:40 PM ESTFlash Flood WarningJKLJackson4 hr
Dec 23, 12:00 AM ESTFlash Flood WarningJKLBell, Knox6 hr
Dec 23, 3:55 AM ESTFlash Flood WarningJKLJackson2 hr
Dec 23, 5:35 AM ESTFlash Flood WarningJKLJackson, Lee4 hr
Dec 23, 5:35 AM ESTFlash Flood WarningJKLBell, Knox4 hr

Nearby

Flash Flood Warnings in Kentucky, 1990Every flash flood warning in 1990

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.