Alert archive / Indiana / Flash Flood Warnings in 2012

Flash Flood Warning 12, NWS Louisville, KY

May 4, 20124 counties in Indiana; Trimble County, Kentucky

NWS Louisville, KY issued this flash flood warning at May 4, 2012, 10:41 PM EDT for 4 counties in Indiana; Trimble County, Kentucky. It was in force for 3 hr. 1 report 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 4, 2012, 10:41 PM EDT (02:41 UTC)
Expired: May 5, 2012, 1:45 AM EDT
In force: 3 hr
Issued by: NWS Louisville, KY
Area: Storm-based polygon
Flood severity: None

Counties Clark County, IN, Jefferson County, IN, Scott County, IN, Washington County, IN, Trimble County, KY

The radar

The Louisville radar (KLVX), 89 km from the middle of the area, began a volume at 02:42 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

Time	Report	Where	Remark
May 4, 11:30 PM EDT	FLASH FLOOD	Hanover, IN	REPORT OF ROAD SHUT DOWN DUE TO FLOODING

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

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 00:00Z, 2.7 hours before the alert went out and 179 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 1668 J/kg
Mixed-layer CIN: -14 J/kg
Mixed-layer LCL: 916 m above ground
0-6 km bulk shear: 23 kt
0-1 km storm-relative helicity: 142 m²/s²
0-3 km storm-relative helicity: 193 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 4.6

Open this sounding in Storm Lab

The text

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

929 
WGUS53 KLMK 050241
FFWLMK
INC019-077-143-175-KYC223-050545-
/O.NEW.KLMK.FF.W.0012.120505T0241Z-120505T0545Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE LOUISVILLE KY
1041 PM EDT FRI MAY 4 2012

THE NATIONAL WEATHER SERVICE IN LOUISVILLE HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  TRIMBLE COUNTY IN NORTH CENTRAL KENTUCKY...
  NORTHERN CLARK COUNTY IN SOUTH CENTRAL INDIANA...
  JEFFERSON COUNTY IN SOUTH CENTRAL INDIANA...
  SCOTT COUNTY IN SOUTH CENTRAL INDIANA...
  NORTHERN WASHINGTON COUNTY IN SOUTH CENTRAL INDIANA...

* UNTIL 145 AM EDT

* AT 1037 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED  
  A CLUSTER OF STRONG THUNDERSTORMS WITH VERY HEAVY RAINFALL MOVING  
  ACROSS PORTIONS OF SOUTHERN INDIANA.  ADDITIONAL THUNDERSTORMS ARE 
  DEVELOPING UPSTREAM OF THE WARNING AREA AND WILL TRAIN ACROSS THE  
  WARNED AREA OVER THE NEXT FEW HOURS.

* LOCATIONS IMPACTED INCLUDE...MADISON...SALEM...SCOTTSBURG...       
  BEDFORD...

  FLASH FLOOD PRONE AREAS IN THIS WARNING...
  RAZOR FORK OVERFLOWS SIMMONS ROAD.
  DRY FORK OVERFLOWS WHIPOORWILL ROAD.

ADDITIONAL RAINFALL AMOUNTS OF 2 TO AS MUCH AS 3 INCHES ARE POSSIBLE 
IN THE WARNED AREA.

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 TO HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS
SUBJECT TO FLOODING WHEN WATER BEGINS RISING.

&&

LAT...LON 3891 8520 3869 8519 3874 8526 3873 8532
      3859 8521 3858 8518 3850 8528 3857 8629
      3874 8631 3877 8628 3878 8619 3877 8613
      3879 8608 3876 8590 3873 8588 3881 8579
      3883 8573 3883 8562 3891 8554

$$

MJ

3 follow-up statements

915 
WGUS73 KLMK 050357
FFSLMK

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE LOUISVILLE KY
1157 PM EDT FRI MAY 4 2012

INC019-077-143-175-KYC223-050545-
/O.CON.KLMK.FF.W.0012.000000T0000Z-120505T0545Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
SCOTT IN-WASHINGTON IN-JEFFERSON IN-CLARK IN-TRIMBLE KY-
1157 PM EDT FRI MAY 4 2012

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 145 AM EDT FOR
TRIMBLE...NORTHERN CLARK...JEFFERSON...NORTHERN WASHINGTON AND SCOTT
COUNTIES...

AT 1152 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO 
INDICATE THUNDERSTORMS PRODUCING VERY HEAVY RAIN OVER THE WARNED 
AREA.

* LOCATIONS IMPACTED INCLUDE...
  MADISON...
  SALEM...
  SCOTTSBURG...
  BEDFORD...

  FLASH FLOOD PRONE AREAS IN THIS WARNING...
  RAZOR FORK OVERFLOWS SIMMONS ROAD.
  DRY FORK OVERFLOWS WHIPOORWILL ROAD.

WHILE THE MAIN LINE OF HEAVY THUNDERSTORMS IS PUSHING SOUTH OF THE 
WARNED AREA...ADDITIONAL THUNDERSTORMS ARE DEVELOPING UPSTREAM AND 
WILL MOVE BACK INTO THE WARNED AREA OVER THE NEXT FEW HOURS.  
ADDITIONAL RAINFALL AMOUNTS OF 1 TO 2 INCHES CAN BE EXPECTED OVER 
THE NEXT FEW HOURS.

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
TO HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS SUBJECT
TO FLOODING WHEN WATER BEGINS RISING.

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

&&

LAT...LON 3891 8520 3869 8519 3874 8526 3873 8532
      3859 8521 3858 8518 3850 8528 3857 8629
      3874 8631 3877 8628 3878 8619 3877 8613
      3879 8608 3876 8590 3873 8588 3881 8579
      3883 8573 3883 8562 3891 8554

$$

MJ

328 
WGUS73 KLMK 050517
FFSLMK

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE LOUISVILLE KY
117 AM EDT SAT MAY 5 2012

INC019-077-143-175-KYC223-050545-
/O.CON.KLMK.FF.W.0012.000000T0000Z-120505T0545Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
SCOTT IN-WASHINGTON IN-JEFFERSON IN-CLARK IN-TRIMBLE KY-
117 AM EDT SAT MAY 5 2012

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 145 AM EDT FOR
TRIMBLE...NORTHERN CLARK...JEFFERSON...NORTHERN WASHINGTON AND SCOTT
COUNTIES...

AT 111 AM EDT...THUNDERSTORMS WITH HEAVY RAINFALL CONTINUED TO MOVE 
ACROSS THE WARNING AREA.  RAINFALL AMOUNTS OF UP TO ONE INCH PER 
HOUR CAN BE EXPECTED.

* LOCATIONS IMPACTED INCLUDE...
  MADISON...
  SALEM...
  SCOTTSBURG...
  BEDFORD...


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
TO HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS SUBJECT
TO FLOODING WHEN WATER BEGINS RISING.

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

&&

LAT...LON 3891 8520 3869 8519 3874 8526 3873 8532
      3859 8521 3858 8518 3850 8528 3857 8629
      3874 8631 3877 8628 3878 8619 3877 8613
      3879 8608 3876 8590 3873 8588 3881 8579
      3883 8573 3883 8562 3891 8554

$$

MJ

025 
WGUS73 KLMK 050543
FFSLMK

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE LOUISVILLE KY
143 AM EDT SAT MAY 5 2012

INC019-077-143-175-KYC223-050552-
/O.EXP.KLMK.FF.W.0012.000000T0000Z-120505T0545Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
SCOTT IN-WASHINGTON IN-JEFFERSON IN-CLARK IN-TRIMBLE KY-
143 AM EDT SAT MAY 5 2012

...THE FLASH FLOOD WARNING WILL BE ALLOWED TO EXPIRE AT 145 AM EDT 
FOR TRIMBLE...NORTHERN CLARK...JEFFERSON...NORTHERN WASHINGTON AND 
SCOTT COUNTIES...

THE STORMS THAT PROMPTED THE WARNING HAVE MOVED OUT OF THE WARNED 
AREA.  SOME ADDITIONAL THUNDERSTORMS WILL BE POSSIBLE OVERNIGHT.

STAY TUNED TO NOAA ALL HAZARDS WEATHER RADIO AND YOUR LOCAL MEDIA 
FOR THE LATEST UPDATES.  IF YOU SEE OR NEED TO REPORT 
FLOODING...CONTACT YOUR LOCAL LAW ENFORCEMENT AGENCY AND HAVE THEM 
RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE IN LOUISVILLE.

LAT...LON 3891 8520 3869 8519 3874 8526 3873 8532
      3859 8521 3858 8518 3850 8528 3857 8629
      3874 8631 3877 8628 3878 8619 3877 8613
      3879 8608 3876 8590 3873 8588 3881 8579
      3883 8573 3883 8562 3891 8554

$$

MJ

The office that day

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

Issued	Product	Office	Counties	Lasted
May 4, 9:33 PM EDT	Special Weather Statement	LMK	Scott	27 min
May 4, 9:40 PM EDT	Severe Thunderstorm Warning	LMK	Scott, Washington	35 min
May 4, 10:17 PM EDT	Special Weather Statement	LMK	Washington	28 min
May 4, 10:21 PM EDT	Areal Flood Advisory	LMK	Clark, Jefferson, Scott, Washington	3 hr
May 4, 10:27 PM EDT	Special Weather Statement	LMK	Dubois	33 min
May 4, 10:29 PM EDT	Special Weather Statement	LMK	Jefferson, Scott	46 min
May 4, 10:58 PM EDT	Special Weather Statement	LMK	Orange	47 min
May 4, 11:17 PM EDT	Special Weather Statement	LMK	Dubois	28 min
May 4, 11:50 PM EDT	Special Weather Statement	LMK	Floyd	40 min
May 4, 11:52 PM EDT	Special Weather Statement	LMK	Perry	38 min
May 5, 12:23 AM EDT	Areal Flood Advisory	LMK	Floyd	3 hr
May 5, 3:02 AM EDT	Areal Flood Advisory	LMK	Crawford, Dubois, Orange, Perry	2 hr
May 5, 3:22 AM EDT	Flash Flood Warning	LMK	Crawford, Harrison, Perry	3 hr
May 5, 12:20 AM EDT	Special Weather Statement	LMK	Bourbon, Harrison, Nicholas	40 min
May 5, 12:22 AM EDT	Special Weather Statement	LMK	Meade	23 min
May 5, 12:40 AM EDT	Special Weather Statement	LMK	Bullitt, Meade	35 min
May 5, 12:45 AM EDT	Special Weather Statement	LMK	Anderson, Fayette, Franklin, Scott, Spencer, Woodford	45 min
May 5, 1:01 AM EDT	Special Weather Statement	LMK	Bourbon, Nicholas	29 min
May 5, 1:14 AM EDT	Severe Thunderstorm Warning	LMK	Bullitt, Hardin, Larue, Marion, Nelson, Washington	31 min
May 5, 1:24 AM EDT	Special Weather Statement	LMK	Boyle, Clark, Garrard, Jessamine, Lincoln, Madison and 2 more	66 min
May 5, 1:46 AM EDT	Special Weather Statement	LMK	Larue, Marion, Nelson	44 min
May 5, 2:44 AM EDT	Areal Flood Advisory	LMK	Meade	3 hr
May 5, 3:22 AM EDT	Severe Thunderstorm Warning	LMK	Breckinridge, Grayson, Hancock, Ohio	23 min
May 5, 3:56 AM EDT	Tornado Warning	LMK	Grayson	19 min
May 5, 4:14 AM EDT	Severe Thunderstorm Warning	LMK	Barren, Edmonson, Grayson, Hart	31 min
May 5, 4:44 AM EDT	Severe Thunderstorm Warning	LMK	Adair, Barren, Green, Hart, Metcalfe	31 min
May 5, 4:53 AM EDT	Tornado Warning	LMK	Barren, Metcalfe	22 min
May 5, 5:13 AM EDT	Special Weather Statement	LMK	Clinton, Cumberland, Metcalfe, Monroe	47 min
May 5, 6:34 AM EDT	Special Weather Statement	LMK	Simpson	41 min

Nearby

Flash Flood Warnings in Indiana, 2012 Flash Flood Warnings in Kentucky, 2012 Every 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.