Alert archive / Kentucky / Flash Flood Warnings in 2011

Flash Flood Warning 4, NWS Louisville, KY

April 12, 2011Nicholas County, Kentucky

NWS Louisville, KY issued this flash flood warning at Apr 12, 2011, 7:46 AM EDT for Nicholas 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, 7:46 AM EDT (11:46 UTC)
Expired
Apr 12, 2011, 10:45 AM EDT
In force
3 hr
Issued by
NWS Louisville, KY
Area
Storm-based polygon
Flood severity
None

County Nicholas County, KY

The radar

The Jackson,KY radar (KJKL), 101 km from the middle of the area, began a volume at 11:46 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 00:00Z, 11.8 hours before the alert went out and 125 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 00:00Z on 2011-04-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 15 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, Cncnati-Daytn, OH at 00:00Z on 2011-04-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 24 square meters per square second.1939587897Sfc1 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
15 J/kg
Mixed-layer CIN
-3 J/kg
Mixed-layer LCL
527 m above ground
0-6 km bulk shear
50 kt
0-1 km storm-relative helicity
24 m²/s²
0-3 km storm-relative helicity
-5 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.

734 
WGUS53 KLMK 121146
FFWLMK
KYC181-121445-
/O.NEW.KLMK.FF.W.0004.110412T1146Z-110412T1445Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE LOUISVILLE KY
746 AM EDT TUE APR 12 2011

THE NATIONAL WEATHER SERVICE IN LOUISVILLE HAS ISSUED A

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

* UNTIL 1045 AM EDT

* AT 744 AM EDT...LOCAL EMERGENCY MANAGEMENT REPORTED FROM NUMEROUS 
CREEKS AND STREAMS OUT OF THEIR BANKS AS WELL AS SEVERAL ROADS 
CLOSED DUE TO FLOODING OVER THE COUNTY.

* LOCATIONS IMPACTED INCLUDE...CARLISLE...

  IN ADDITION...PLEASANT VALLEY...HOOKTOWN AND ELLISVILLE ARE
  INCLUDED IN THIS FLASH FLOOD WARNING.

ADDITIONAL RAINFALL AMOUNTS OF 0.5 TO 1 ARE POSSIBLE IN THE WARNED 
AREA THROUGH THE MORNING HOURS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

TO REPORT FLOODING TO THE NATIONAL WEATHER SERVICE...CALL TOLL FREE
AT...1...8 7 7...6 3 3...6 7 7 2...WHEN YOU CAN DO SO SAFELY.

&&

LAT...LON 3830 8385 3820 8398 3821 8399 3820 8400
      3822 8405 3825 8407 3826 8411 3837 8420
      3846 8409 3846 8408 3843 8399 3843 8395
      3837 8391 3833 8384

$$

AML
1 follow-up statement
978 
WGUS73 KLMK 121342
FFSLMK

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE LOUISVILLE KY
942 AM EDT TUE APR 12 2011

KYC181-121445-
/O.CON.KLMK.FF.W.0004.000000T0000Z-110412T1445Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
NICHOLAS KY-
942 AM EDT TUE APR 12 2011

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1045 AM EDT FOR
NICHOLAS COUNTY...

AT 935 AM EDT...EMERGENCY MANAGEMENT CONTINUED TO INDICATE ROAD 
CLOSURES FROM FLOODING IN NICHOLAS COUNTY. 

* LOCATIONS IMPACTED INCLUDE...
  CARLISLE...

  IN ADDITION...PLEASANT VALLEY...HOOKTOWN AND ELLISVILLE ARE
  INCLUDED IN THIS FLASH FLOOD WARNING.

ADDITIONAL RAINFALL AMOUNTS OF LESS THAN A HALF INCH ARE POSSIBLE IN 
THE WARNED AREA.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

TO REPORT FLOODING TO THE NATIONAL WEATHER SERVICE...CALL TOLL FREE
AT...1...8 7 7...6 3 3...6 7 7 2...WHEN YOU CAN DO SO SAFELY.

&&

LAT...LON 3830 8385 3820 8398 3821 8399 3820 8400
      3822 8405 3825 8407 3826 8411 3837 8420
      3846 8409 3846 8408 3843 8399 3843 8395
      3837 8391 3833 8384

$$

AML

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 11, 8:14 PM EDTSpecial Weather StatementLMKBarren, Metcalfe31 min
Apr 11, 8:46 PM EDTSpecial Weather StatementLMKAdair, Cumberland, Metcalfe, Monroe29 min
Apr 11, 9:36 PM EDTSpecial Weather StatementLMKRussell24 min
Apr 12, 4:27 AM EDTFlash Flood WarningLMKAllen, Breckinridge, Butler, Edmonson, Grayson, Logan and 3 more4 hr
Apr 12, 5:22 AM EDTRiver Flood WarningLMKNicholas, Robertson3 days
Apr 12, 5:56 AM EDTRiver Flood WarningLMKOhio66 hr
Apr 12, 7:23 AM EDTRiver Flood WarningLMKBourbon48 hr
Apr 12, 7:37 AM EDTAreal Flood AdvisoryLMKAdair, Allen, Barren, Casey, Clinton, Cumberland and 9 more3 hr
Apr 12, 7:41 AM EDTAreal Flood AdvisoryLMKAnderson, Boyle, Clark, Fayette, Franklin, Garrard and 9 more3 hr
Apr 12, 7:52 AM EDTAreal Flood AdvisoryLMKBreckinridge, Bullitt, Grayson, Hardin, Henry, Jefferson and 7 more3 hr
Apr 12, 8:00 AM EDTAreal Flood AdvisoryLMKHancock3 hr
Apr 12, 8:09 AM EDTAreal Flood WarningLMKHardin, Larue3 hr
Apr 12, 8:15 AM EDTFlash Flood WarningLMKAnderson, Bourbon, Fayette, Franklin, Harrison, Jessamine and 2 more3 hr
Apr 12, 8:22 AM EDTAreal Flood WarningLMKHancock3 hr
Apr 12, 8:25 AM EDTAreal Flood WarningLMKSpencer3 hr
Apr 12, 8:34 AM EDTAreal Flood WarningLMKButler, Warren3 hr
Apr 12, 8:50 AM EDTFlash Flood WarningLMKMercer3 hr
Apr 12, 9:46 AM EDTFlash Flood WarningLMKWashington3 hr
Apr 12, 10:19 AM EDTRiver Flood WarningLMKHarrison45 hr
Apr 12, 10:30 AM EDTAreal Flood AdvisoryLMKAdair, Casey, Clinton, Cumberland, Lincoln, Russell and 1 more6 hr
Apr 12, 10:34 AM EDTRiver Flood WarningLMKWarren21 hr
Apr 12, 10:34 AM EDTRiver Flood WarningLMKHart61 hr
Apr 12, 10:34 AM EDTRiver Flood WarningLMKEdmonson4 days
Apr 12, 10:34 AM EDTRiver Flood WarningLMKButler, Warren6 days
Apr 12, 10:34 AM EDTRiver Flood WarningLMKButler, Muhlenberg, Ohio8 days
Apr 12, 10:48 AM EDTAreal Flood WarningLMKAnderson, Bourbon, Boyle, Clark, Fayette, Franklin and 10 more6 hr
Apr 12, 10:56 AM EDTRiver Flood WarningLMKHardin, Nelson6 days
Apr 12, 11:37 AM EDTRiver Flood WarningLMKJefferson, Oldham4 days
Apr 12, 11:37 AM EDTRiver Flood WarningLMKJefferson, Meade72 hr
Apr 12, 11:37 AM EDTRiver Flood WarningLMKBreckinridge, Hancock7 days
Apr 12, 11:37 AM EDTRiver Flood WarningLMKBreckinridge, Hancock27 days
Apr 12, 11:48 AM EDTAreal Flood AdvisoryLMKAllen, Butler, Edmonson, Logan, Simpson, Warren6 hr

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; radar from the NEXRAD Level II archive.