Alert archive / Kentucky / Flash Flood Warnings in 2012

Flash Flood Warning 7, NWS Paducah, KY

May 21, 2012Christian County, Kentucky

NWS Paducah, KY issued this flash flood warning at May 21, 2012, 5:06 PM CDT for Christian County, Kentucky. It was in force for 53 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
May 21, 2012, 5:06 PM CDT (22:06 UTC)
Expired
May 21, 2012, 5:59 PM CDT
In force
53 min
Issued by
NWS Paducah, KY
Area
Storm-based polygon
Flood severity
None

County Christian County, KY

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 12:00Z, 10.1 hours before the alert went out and 100 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 2012-05-21Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 65 joules per kilogram.LCLLFCEL10008507005003002001001 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, Nashville Metro, TN at 12:00Z on 2012-05-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -37 square meters per square second.1939Sfc1 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
65 J/kg
Mixed-layer CIN
-102 J/kg
Mixed-layer LCL
1067 m above ground
0-6 km bulk shear
11 kt
0-1 km storm-relative helicity
-37 m²/s²
0-3 km storm-relative helicity
4 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.

169 
WGUS53 KPAH 212206
FFWPAH
KYC047-220000-
/O.NEW.KPAH.FF.W.0007.120521T2206Z-120522T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE PADUCAH KY
506 PM CDT MON MAY 21 2012

THE NATIONAL WEATHER SERVICE IN PADUCAH HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  SOUTHEAST CHRISTIAN COUNTY IN SOUTH CENTRAL KENTUCKY...

* UNTIL 700 PM CDT.

* AT 457 PM CDT...FLASH FLOODING WAS REPORTED FROM A THUNDERSTORM   
OVER THE WARNED AREA. NATIONAL WEATHER SERVICE DOPPLER RADAR RADAR 
ESTIMATES NEARLY 3 INCHES OF RAIN HAS FALLEN IN PAST HOUR BETWEEN 
FORT CAMPBELL AND INTERSTATE 24.  

* LOCATIONS IN THE WARNED AREA INCLUDE...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...HIGHWAYS AND UNDERPASSES. ADDITIONALLY...COUNTRY
ROADS AND FARMLANDS ALONG THE BANKS OF CREEKS...STREAMS AND OTHER LOW
LYING AREAS ARE SUBJECT TO FLOODING.

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY. MOVE TO HIGHER GROUND.

&&

LAT...LON 3673 8756 3676 8732 3664 8734 3663 8756

$$
1 follow-up statement
536 
WGUS73 KPAH 212259
FFSPAH

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE PADUCAH KY
559 PM CDT MON MAY 21 2012

KYC047-212309-
/O.CAN.KPAH.FF.W.0007.000000T0000Z-120522T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CHRISTIAN KY-
559 PM CDT MON MAY 21 2012

...THE FLASH FLOOD WARNING HAS BEEN CANCELLED FOR SOUTH CENTRAL
CHRISTIAN COUNTY IN SOUTH CENTRAL KENTUCKY...

THERE STILL COULD BE ISOLATED THUNDERSTORMS WITH LOCALLY HEAVY RAIN 
AROUND THE WARNED AREA. HOWEVER...MOST OF THIS ACTIVITY WILL OCCUR 
EAST OF WHERE THE HEAVIEST RAIN HAS FALLEN. THEREFORE...THE WARNING 
IS CANCELLED.


LAT...LON 3673 8756 3676 8732 3664 8734 3663 8756

$$

The office that day

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

IssuedProductOfficeCountiesLasted
May 21, 4:31 PM CDTFlash Flood WarningPAHMcLean, Muhlenberg71 min

Nearby

Flash Flood Warnings in Kentucky, 2012Every flash flood warning in 2012

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.