Alert archive / Kentucky / Flash Flood Warnings in 1998

Flash Flood Warning 1, NWS Louisville, KY

January 7, 1998Clinton County, Kentucky

NWS Louisville, KY issued this flash flood warning at Jan 7, 1998, 3:21 PM CST for Clinton 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
Jan 7, 1998, 3:21 PM CST (21:21 UTC)
Expired
Jan 7, 1998, 6:15 PM CST
In force
3 hr
Issued by
NWS Louisville, KY
Area
Whole counties

County Clinton County, KY

The radar

The Nashville radar (KOHX), 138 km from the middle of the area, began a volume at 21:23 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.

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 12:00Z, 9.4 hours before the alert went out and 147 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 12:00Z on 1998-01-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 10 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 12:00Z on 1998-01-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 61 square meters per square second.19395878Sfc1 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
10 J/kg
Mixed-layer CIN
-31 J/kg
Mixed-layer LCL
552 m above ground
0-6 km bulk shear
53 kt
0-1 km storm-relative helicity
61 m²/s²
0-3 km storm-relative helicity
108 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
TTAA00 KSDF 072125
FFWSDF
KYC053-080015-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE LOUISVILLE KY
421 PM EST (321 PM CST) WED JAN 7 1998

* FLASH FLOOD WARNING FOR
  CLINTON COUNTY - SOUTH CENTRAL KENTUCKY

* UNTIL 615 PM CST (715 PM EST)

* SOME LOCATIONS AFFECTED
  ALL TOWNS AND CITIES IN CLINTON COUNTY

* CAUSE AND EFFECT
  AT 4:15 PM EST(3:15 PM CST) RADAR INDICATED HEAVY RAIN IN CLINTON
  COUNTY. THE GROUND IS SATURATED AND ALBANY POLICE HAS REPORTED
  WATER OVER FAIRGROUNDS ROAD IN ALBANY AT 4:18 PM EST (3:18 CST).

* FORECAST CONDITIONS
  HEAVY RAIN WILL CONTINUE TO MOVE INTO CLINTON COUNTY THROUGH
  7:15 PM EST (6:15 PM CST). THE RAIN WILL BE MOVING NORTHEAST
  nAT 25 MPH.

NEVER ATTEMPT TO CROSS A FLOODED ROADWAY. THE WATER LEVEL MAY BE
TOO GREAT TO ALLOW SAFE PASSAGE FOR YOUR VEHICLE.

ACS/WHW/VB


&

The office that day

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

IssuedProductOfficeCountiesLasted
Jan 7, 3:33 PM CSTFlash Flood WarningLMKMadison3 hr
Jan 7, 4:08 PM CSTFlash Flood WarningLMKClark2 hr
Jan 7, 4:31 PM CSTFlash Flood WarningLMKBourbon, Nicholas3 hr

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; radar from the NEXRAD Level II archive.