Alert archive / Kentucky / Flash Flood Warnings in 1998

Flash Flood Warning 18, NWS Jackson, KY

April 15, 1998Pulaski County, Wayne County, Kentucky

NWS Jackson, KY issued this flash flood warning at Apr 15, 1998, 9:34 PM EDT for Pulaski County, Wayne County, Kentucky. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Apr 15, 1998, 9:34 PM EDT (01:34 UTC)
Expired
Apr 16, 1998, 12:35 AM EDT
In force
3 hr
Issued by
NWS Jackson, KY
Area
Whole counties

Counties Pulaski County, KY, Wayne County, KY

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 00:00Z, 1.6 hours before the alert went out and 193 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, Nashville Metro, TN at 00:00Z on 1998-04-16Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 449 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, Nashville Metro, TN at 00:00Z on 1998-04-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 78 square meters per square second.1939587897117136156Sfc1 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
449 J/kg
Mixed-layer CIN
-23 J/kg
Mixed-layer LCL
1158 m above ground
0-6 km bulk shear
42 kt
0-1 km storm-relative helicity
78 m²/s²
0-3 km storm-relative helicity
155 m²/s²
Significant tornado parameter
0.2
Supercell composite
1.6

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.

What forecasters said that day

The local office's own words before this flash flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Jackson, KY wrote its last area forecast discussion before this flash flood warning went out at Apr 15, 2:40 PM EDT, 6 hours 54 minutes earlier.

Area forecast discussion, Apr 15, 2:40 PM EDT, 6 hours 54 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE JACKSON KY
240 PM EDT WED APR 15 1998

MAIN QUESTION TO RESOLVE CONCERNS THUNDERSTORM CHANCES NEXT 48 HOURS.
WHILE MODELS IN GENERAL AGREEMENT WITH OVERALL PATTERN THE ETA SEEMS
TO BE HANDLING THE SITUATION BEST.

STRONG TO SEVERE CONVECTION CURRENTLY MOVING ACROSS JACKSON CWA. ONCE
THIS MOVES EAST OF AREA EARLY THIS EVENING THINGS WILL QUIET DOWN FOR
A TIME. WITH STRONG DIFFLUENCE ALOFT...LOW LEVEL CONVERGENCE...AND
INCREASING LOW LEVEL MOISTURE LOOK FOR CONVECTION TO INCREASE OVER MO
SRN IL THIS EVENING. LIKE ETA IDEA OF KEEPING THIS CONVECTION MAINLY
NW OF OUR CWA OVERNIGHT. AT THIS TIME WOULD PREFER MENTION OF EARLY
EVENING THUNDERSTORMS TO HANDLE ONGOING CONVECTION...BUT THEN JUST
KEEP CHANCE POPS FOR OVERNIGHT PERIOD.

BEST VERTICAL VELOCITY AND MOISTURE OVER ERN KY TO OCCUR WITH COLD
FRONT THURSDAY NIGHT. CHANCE POPS SHOULD STILL IN ORDER FOR THURSDAY
WITH LIKELY POPS THURSDAY NIGHT.

THE FOLLOWING GUIDANCE IS FOR COORDINATION PURPOSES ONLY. OFFICIAL
FORECASTS ARE CONTAINED IN THE PRODUCT SDFZFPKY.

JKL 59/76/60/67 5374
LOZ 59/77/59/65 4373

SBH

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 15, 8:32 PM EDTFlash Flood WarningJKLLee, Owsley5 hr
Apr 15, 9:34 PM EDTFlash Flood WarningJKLLaurel, McCreary, Whitley3 hr
Apr 15, 9:34 PM EDTFlash Flood WarningJKLRockcastle3 hr
Apr 16, 6:30 AM EDTSevere Thunderstorm WarningJKLBath, Fleming60 min
Apr 16, 6:30 AM EDTSevere Thunderstorm WarningJKLBath, Fleming65 min
Apr 16, 2:46 PM EDTFlash Flood WarningJKLPulaski3 hr
Apr 16, 6:16 PM EDTFlash Flood WarningJKLMcCreary, Pulaski, Wayne3 hr
Apr 16, 6:16 PM EDTFlash Flood WarningJKLLaurel, Rockcastle3 hr
Apr 16, 6:16 PM EDTFlash Flood WarningJKLWhitley3 hr
Apr 16, 6:37 PM EDTTornado WarningJKLWayne43 min
Apr 16, 6:37 PM EDTTornado WarningJKLWayne68 min
Apr 16, 7:00 PM EDTTornado WarningJKLPulaski60 min
Apr 16, 7:06 PM EDTSevere Thunderstorm WarningJKLMcCreary49 min
Apr 16, 7:14 PM EDTSevere Thunderstorm WarningJKLRockcastle61 min
Apr 16, 7:20 PM EDTTornado WarningJKLHarlan60 min
Apr 16, 7:26 PM EDTFlash Flood WarningJKLJackson3 hr
Apr 16, 7:29 PM EDTSevere Thunderstorm WarningJKLWhitley61 min
Apr 16, 7:34 PM EDTFlash Flood WarningJKLFleming3 hr
Apr 16, 7:36 PM EDTTornado WarningJKLRockcastle49 min
Apr 16, 7:38 PM EDTTornado WarningJKLMcCreary37 min
Apr 16, 7:41 PM EDTTornado WarningJKLJackson64 min
Apr 16, 7:46 PM EDTSevere Thunderstorm WarningJKLWayne64 min
Apr 16, 7:48 PM EDTTornado WarningJKLWhitley47 min
Apr 16, 7:58 PM EDTSevere Thunderstorm WarningJKLClay62 min

Nearby

Flash Flood Warnings in Kentucky, 1998Every flash flood warning in 1998

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.