Alert archive / Kentucky / Flash Flood Warnings in 2009

Flash Flood Warning 21, NWS Paducah, KY

May 9, 20097 counties in Kentucky

NWS Paducah, KY issued this flash flood warning at May 9, 2009, 2:28 AM CDT for 7 counties in Kentucky. It was in force for 6 hr. 5 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
May 9, 2009, 2:28 AM CDT (07:28 UTC)
Expired
May 9, 2009, 8:15 AM CDT
In force
6 hr
Issued by
NWS Paducah, KY
Area
Storm-based polygon
Flood severity
None

Counties Calloway County, KY, Carlisle County, KY, Christian County, KY, Graves County, KY, Lyon County, KY, Marshall County, KY, Trigg County, KY

The radar

The Paducah radar (KPAH), 37 km from the middle of the area, began a volume at 07:31 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.

What was reported inside it

TimeReportWhereRemark
May 9, 7:00 AM CDTHEAVY RAIN 2.654 Sw Cadiz, KY24 HOUR RAINFALL TOTAL FROM 7 AM CDT MAY 8TH THROUGH 7 AM CDT MAY 9TH.
May 9, 7:00 AM CDTHEAVY RAIN 3.2Mayfield, KY24 HOUR RAINFALL TOTAL FROM 7 AM CDT MAY 8TH THROUGH 7 AM CDT MAY 9TH.
May 9, 7:00 AM CDTHEAVY RAIN 3.77Cadiz, KY24 HOUR RAINFALL TOTAL FROM 7 AM CDT MAY 8TH THROUGH 7 AM CDT MAY 9TH.
May 9, 7:00 AM CDTHEAVY RAIN 4.34Aurora, KY24 HOUR RAINFALL TOTAL FROM 7 AM CDT MAY 8TH THROUGH 7 AM CDT MAY 9TH.
May 9, 8:00 AM CDTHEAVY RAIN 2.623 Ne Hopkinsville, KYRAINFALL TOTAL FROM 10 PM CDT ON MAY 8TH THROUGH 800 AM CDT ON MAY 9TH. 24 HOUR TOTAL 3.40 INCHES SINCE 8 AM CDT MAY 8TH.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 00:00Z, 7.5 hours before the alert went out and 185 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 2009-05-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 755 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 2009-05-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 286 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
755 J/kg
Mixed-layer CIN
-212 J/kg
Mixed-layer LCL
1403 m above ground
0-6 km bulk shear
53 kt
0-1 km storm-relative helicity
286 m²/s²
0-3 km storm-relative helicity
487 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.9

Open this sounding in Storm Lab

The text

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

000 
WGUS53 KPAH 090728
FFWPAH
KYC035-039-047-083-143-157-221-091315-
/O.NEW.KPAH.FF.W.0021.090509T0728Z-090509T1315Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE PADUCAH KY
228 AM CDT SAT MAY 9 2009

THE NATIONAL WEATHER SERVICE IN PADUCAH HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  CENTRAL CHRISTIAN COUNTY IN SOUTH CENTRAL KENTUCKY...
  NORTHERN CALLOWAY COUNTY IN WESTERN KENTUCKY...
  CARLISLE COUNTY IN WESTERN KENTUCKY...
  GRAVES COUNTY IN WESTERN KENTUCKY...
  SOUTHERN LYON COUNTY IN WESTERN KENTUCKY...
  MARSHALL COUNTY IN WESTERN KENTUCKY...
  NORTHERN TRIGG COUNTY IN WESTERN KENTUCKY...

* UNTIL 815 AM CDT.

* AT 225 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUES 
TO INDICATE MODERATE TO HEAVY RAINFALL OCCURRING OVER THE WARNED 
AREA. OVER THE LAST SEVERAL HOURS...2 TO 4 INCHES OF RAIN HAS FALLEN 
ACROSS THE AREA. NUMEROUS REPORTS OF FLOODED ROADWAYS HAVE BEEN 
REPORTED...ALONG WITH SOME ROADS BEING WASHED OUT COMPLETELY. A FEW 
EVACUATIONS HAVE ALSO TAKEN PLACE. WHILE MOST OF THE HEAVIEST RAIN 
HAS MOVED EAST OF THE AREA...ADDITIONAL MODERATE SHOWERS WITH 
POCKETS OF HEAVIER THUNDERSTORMS WILL CONTINUE TO MOVE ACROSS THE 
WARNED AREA. THIS WILL ONLY WORSEN ONGOING PROBLEMS. 

* LOCATIONS IN THE WARNED AREA INCLUDE...
BARDWELL...MAYFIELD...BENTON...CADIZ...HOPKINSVILLE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE 
DANGERS OF FLOODING. DO NOT STAY IN AREAS SUBJECT TO FLOODING WHEN 
WATER BEGINS RISING.

MOST FLOOD DEATHS OCCUR IN AUTOMOBILES. NEVER DRIVE YOUR VEHICLE INTO
AREAS WHERE THE WATER COVERS THE ROADWAY. FLOOD WATERS ARE USUALLY
DEEPER THAN THEY APPEAR. JUST ONE FOOT OF FLOWING WATER IS POWERFUL
ENOUGH TO SWEEP VEHICLES OFF THE ROAD. WHEN ENCOUNTERING FLOODED
ROADS MAKE THE SMART CHOICE...TURN AROUND...DONT DROWN.

&&

LAT...LON 3678 8883 3678 8907 3679 8907 3680 8911
      3695 8910 3692 8899 3695 8890 3696 8785
      3697 8783 3698 8729 3677 8733 3677 8813
      3665 8806 3665 8882

$$
1 follow-up statement
000 
WGUS73 KPAH 091137
FFSPAH

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE PADUCAH KY
637 AM CDT SAT MAY 9 2009

KYC035-039-047-083-143-157-221-091315-
/O.CON.KPAH.FF.W.0021.000000T0000Z-090509T1315Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
LYON KY-CHRISTIAN KY-MARSHALL KY-TRIGG KY-CARLISLE KY-GRAVES KY-
CALLOWAY KY-
637 AM CDT SAT MAY 9 2009

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 815 AM CDT FOR
CENTRAL CHRISTIAN COUNTY IN SOUTH CENTRAL KENTUCKY...AND NORTHERN
CALLOWAY...NORTHERN GRAVES...CARLISLE...NORTHERN TRIGG...MARSHALL AND
SOUTHERN LYON COUNTIES IN WESTERN KENTUCKY...

AT 633 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED 
THAT THE HEAVY PRECIPITATION THAT AFFECTED THE AREA OVERNIGHT HAS 
NOW MOVED OUT OF THE WARNED AREA. COUNTY OFFICIALS ARE REPORTING 
THAT THE WATER HAS RECEDED IN MANY AREAS...AND THEY WERE ABLE TO 
REMOVE BARRICADES FROM MANY ROADS. HOWEVER...DUE TO ALL THE HEAVY 
RAIN THAT THE AREA RECEIVED...THERE MAY STILL BE SOME LOCATIONS 
WHERE WATER MAY BE OVER THE ROADWAYS. 

LOCATIONS IN THE WARNED AREA INCLUDE HOPKINSVILLE...CADIZ...BENTON
AND BARDWELL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

MOST FLOOD DEATHS OCCUR IN AUTOMOBILES. NEVER DRIVE YOUR VEHICLE INTO
AREAS WHERE THE WATER COVERS THE ROADWAY. FLOOD WATERS ARE USUALLY
DEEPER THAN THEY APPEAR. JUST ONE FOOT OF FLOWING WATER IS POWERFUL
ENOUGH TO SWEEP VEHICLES OFF THE ROAD. WHEN ENCOUNTERING FLOODED
ROADS MAKE THE SMART CHOICE...TURN AROUND...DONT DROWN.

&&

LAT...LON 3678 8883 3678 8907 3679 8907 3680 8911
      3695 8910 3692 8899 3695 8890 3696 8785
      3697 8783 3698 8729 3677 8733 3677 8813
      3665 8806 3665 8882

$$

The office that day

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

IssuedProductOfficeCountiesLasted
May 8, 9:35 PM CDTRiver Flood WarningPAHLivingston9 days
May 8, 11:30 PM CDTFlash Flood WarningPAHCarlisle, Christian, Graves, Lyon, Marshall, Trigg3 hr
May 9, 12:41 AM CDTFlash Flood WarningPAHChristian, Todd, Trigg3 hr
May 9, 3:44 AM CDTFlash Flood WarningPAHChristian, Todd, Trigg6 hr
May 9, 9:29 AM CDTRiver Flood WarningPAHMcLean, Webster6 days
May 9, 9:33 AM CDTRiver Flood WarningPAHCrittenden, Livingston9 days

Nearby

Flash Flood Warnings in Kentucky, 2009Every flash flood warning in 2009

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.