Alert archive / Kentucky / Flash Flood Warnings in 2011

Flash Flood Warning 9, NWS Paducah, KY

April 12, 2011Christian County, Todd County, Kentucky

NWS Paducah, KY issued this flash flood warning at Apr 12, 2011, 12:32 AM CDT for Christian County, Todd 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
Apr 12, 2011, 12:32 AM CDT (05:32 UTC)
Expired
Apr 12, 2011, 3:30 AM CDT
In force
3 hr
Issued by
NWS Paducah, KY
Area
Storm-based polygon
Flood severity
None

Counties Christian County, KY, Todd County, KY

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 00:00Z, 5.5 hours before the alert went out and 121 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 2011-04-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3 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 00:00Z on 2011-04-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 236 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
3 J/kg
Mixed-layer CIN
-68 J/kg
Mixed-layer LCL
531 m above ground
0-6 km bulk shear
84 kt
0-1 km storm-relative helicity
236 m²/s²
0-3 km storm-relative helicity
536 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.4

Open this sounding in Storm Lab

The text

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

776 
WGUS53 KPAH 120532
FFWPAH
KYC047-219-120830-
/O.NEW.KPAH.FF.W.0009.110412T0532Z-110412T0830Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE PADUCAH KY
1232 AM CDT TUE APR 12 2011

THE NATIONAL WEATHER SERVICE IN PADUCAH HAS ISSUED A

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

* UNTIL 330 AM CDT.

* AT 1226 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED 
FLASH FLOODING FROM HEAVY RAINFALL OVER THE WARNED AREA. AN 
EXPANDING AREA OF HEAVY RAINFALL WAS LIKELY CAUSING HOURLY RAINFALL 
RATES AROUND AN INCH A HOUR IN SOME LOCATIONS.

AREAS ALONG THE WESTERN KENTUCKY PARKWAY BETWEEN CROFTON AND 
INTERSTATE 24 WILL RECEIVE SOME OF THE HEAVIEST RAIN. MANY LOCATIONS 
HAVE ALREADY RECEIVED FROM TWO AND A HALF TO THREE AND A HALF INCHES 
OF RAINFALL. THIS NEXT ROUND OF RAINFALL MAY PRODUCE ANOTHER QUICK 
INCH OR TWO OF RAINFALL. THIS WILL CAUSE FLOODING OF MANY ROADWAYS. 
MOTORISTS SHOULD BE ESPECIALLY CAUTIOUS THIS MORNING. 

* LOCATIONS IN THE WARNING INCLUDE...
  HOPKINSVILLE...
  CROFTON...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...URBAN AREAS...HIGHWAYS...STREETS AND UNDERPASSES
AS WELL AS OTHER DRAINAGE AREAS AND LOW LYING SPOTS.

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. IF FLASH FLOODING IS OBSERVED ACT QUICKLY. MOVE
UP TO HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS
SUBJECT TO FLOODING WHEN WATER BEGINS RISING.

&&

LAT...LON 3664 8769 3697 8766 3701 8773 3715 8768
      3711 8753 3713 8750 3715 8734 3713 8733
      3712 8730 3707 8726 3705 8726 3705 8712
      3707 8707 3666 8707

$$
1 follow-up statement
056 
WGUS73 KPAH 120758
FFSPAH

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE PADUCAH KY
258 AM CDT TUE APR 12 2011

KYC047-219-120830-
/O.CON.KPAH.FF.W.0009.000000T0000Z-110412T0830Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CHRISTIAN KY-TODD KY-
258 AM CDT TUE APR 12 2011

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 330 AM CDT FOR TODD
AND CHRISTIAN COUNTIES IN SOUTH CENTRAL KENTUCKY...

AT 247 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO 
INDICATE MOSTLY LIGHT TO MODERATE RAINFALL OVER MOST OF THE WARNED 
AREA. ANOTHER HALF INCH OF RAIN IS POSSIBLE BEFORE IT ENDS. NO 
REPORTS OF FLOODING HAVE BEEN RECEIVED SO FAR.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. IF FLASH FLOODING IS OBSERVED ACT QUICKLY. MOVE
UP TO HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS
SUBJECT TO FLOODING WHEN WATER BEGINS RISING.

IN HILLY TERRAIN THERE ARE HUNDREDS OF LOW WATER CROSSINGS WHICH ARE
POTENTIALLY DANGEROUS IN HEAVY RAIN. DO NOT ATTEMPT TO TRAVEL ACROSS
FLOODED ROADS. FIND ALTERNATE ROUTES. IT TAKES ONLY A FEW INCHES OF
SWIFTLY FLOWING WATER TO CARRY VEHICLES AWAY.

&&

LAT...LON 3664 8769 3697 8766 3701 8773 3715 8768
      3711 8753 3713 8750 3715 8734 3713 8733
      3712 8730 3707 8726 3705 8726 3705 8712
      3707 8707 3666 8707

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 11, 9:23 PM CDTAreal Flood AdvisoryPAHDaviess, Henderson, Hopkins, McLean, Webster3 hr
Apr 11, 11:54 PM CDTFlash Flood WarningPAHCaldwell, Crittenden, Hopkins, Webster3 hr
Apr 12, 2:36 AM CDTAreal Flood WarningPAHDaviess6 min
Apr 12, 2:44 AM CDTAreal Flood AdvisoryPAHDaviess3 hr
Apr 12, 8:57 AM CDTRiver Flood WarningPAHMcLean, Webster41 days
Apr 12, 10:17 AM CDTRiver Flood WarningPAHDaviess27 days
Apr 12, 10:17 AM CDTRiver Flood WarningPAHDaviess, Henderson29 days
Apr 12, 10:17 AM CDTRiver Flood WarningPAHCrittenden, Livingston39 days
Apr 12, 11:13 AM CDTRiver Flood WarningPAHLivingston, McCracken39 days
Apr 12, 11:15 AM CDTRiver Flood WarningPAHFulton52 days

Nearby

Flash Flood Warnings in Kentucky, 2011Every flash flood warning in 2011

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.