Alert archive / Kentucky / Flash Flood Warnings in 2002

Flash Flood Warning 11, NWS Louisville, KY

March 20, 2002Harrison County, Nicholas County, Scott County, Kentucky

NWS Louisville, KY issued this flash flood warning at Mar 20, 2002, 7:39 AM EST for Harrison County, Nicholas County, Scott 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 outline as issued.

The facts

Issued
Mar 20, 2002, 7:39 AM EST (12:39 UTC)
Expired
Mar 20, 2002, 10:45 AM EST
In force
3 hr
Issued by
NWS Louisville, KY
Area
Counties, with a storm outline in the text

Counties Harrison County, KY, Nicholas County, KY, Scott County, KY

The radar

The Jackson,KY radar (KJKL), 126 km from the middle of the area, began a volume at 12:41 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

Cncnati-Daytn, OH (KILN), launched 12:00Z, 0.7 hours before the alert went out and 134 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, Cncnati-Daytn, OH at 12:00Z on 2002-03-20Temperature 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°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Cncnati-Daytn, OH at 12:00Z on 2002-03-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 5 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
448 m above ground
0-6 km bulk shear
79 kt
0-1 km storm-relative helicity
5 m²/s²
0-3 km storm-relative helicity
35 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 
WGUS53 KLMK 201239
FFWSDF
KYC097-181-209-201545-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE LOUISVILLE KY
738 AM EST WED MAR 20 2002

THE NATIONAL WEATHER SERVICE IN LOUISVILLE HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  HARRISON COUNTY IN EAST CENTRAL KENTUCKY
  NICHOLAS COUNTY IN EAST CENTRAL KENTUCKY 
  SCOTT COUNTY IN EAST CENTRAL KENTUCKY

* UNTIL 1045 AM EST

* AT 735 AM EST...HEAVY RAIN CONTINUED OVER MUCH OF HARRISON...
  NICHOLAS AND SCOTT COUNTY. ANOTHER INCH OF RAIN THIS MORNING
  WILL LIKELY LEAD TO FLASH FLOODING...AS THE GROUND REMAINS
  TOTALLY SATURATED.

* SOME LOCATIONS IN THE WARNING INCLUDE CYNTHIANA

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE WATER COVERS THE ROADWAY.
THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS SAFELY.
VEHICLES CAUGHT IN RISING WATER SHOULD BE ABANDONED QUICKLY. MOVE TO
HIGHER GROUND.

REPORT FLOODING TO YOUR NEAREST LAW ENFORCEMENT AGENCY. THEY WILL
RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST OFFICE IN
LOUISVILLE.

LAT...LON 3817 8481 3834 8424 3834 8386 3859 8432

$$
STUREY

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 20, 3:18 AM ESTFlash Flood WarningLMKButler, Grayson3 hr
Mar 20, 6:04 AM ESTFlash Flood WarningLMKBoyle, Larue, Marion, Mercer, Washington116 min
Mar 20, 6:26 AM ESTFlash Flood WarningLMKGrayson3 hr
Mar 20, 7:08 AM ESTFlash Flood WarningLMKGreen, Taylor3 hr
Mar 20, 7:24 AM ESTFlash Flood WarningLMKBourbon, Fayette, Jessamine3 hr
Mar 20, 7:27 AM ESTFlash Flood WarningLMKBourbon, Fayette, Jessamine3 hr
Mar 20, 7:41 AM ESTFlash Flood WarningLMKClark, Madison3 hr
Mar 20, 8:00 AM ESTFlash Flood WarningLMKBoyle, Garrard, Larue, Marion, Mercer, Washington3 hr
Mar 20, 9:01 AM ESTFlash Flood WarningLMKEdmonson, Hart104 min
Mar 20, 10:07 AM ESTFlash Flood WarningLMKGreen, Taylor3 hr
Mar 20, 10:19 AM ESTFlash Flood WarningLMKBourbon, Fayette, Jessamine116 min
Mar 20, 10:55 AM ESTFlash Flood WarningLMKGarrard, Larue, Madison, Mercer, Nicholas80 min

Nearby

Flash Flood Warnings in Kentucky, 2002Every flash flood warning in 2002

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.