Alert archive / Kentucky / Flash Flood Warnings in 2011

Flash Flood Warning 63, NWS Louisville, KY

July 30, 2011Fayette County, Scott County, Kentucky

NWS Louisville, KY issued this flash flood warning at Jul 30, 2011, 4:12 PM EDT for Fayette County, Scott County, Kentucky. It was in force for 87 min. 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
Jul 30, 2011, 4:12 PM EDT (20:12 UTC)
Expired
Jul 30, 2011, 5:39 PM EDT
In force
87 min
Issued by
NWS Louisville, KY
Area
Storm-based polygon
Flood severity
None

Counties Fayette County, KY, Scott County, KY

The radar

The Jackson,KY radar (KJKL), 114 km from the middle of the area, began a volume at 20:12 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
Jul 30, 4:20 PM EDTFLASH FLOODGeorgetown, KYA TRAINED SPOTTER REPORTED 2 AND ONE HALF INCHES OF RAIN IN ONE HOURS TIME ON SOUTH BROADWAY STREET IN GEORGETOWN . ELKHORN CREEK HAS FLOODED ONE LANE OF STATE HIGHWAY 460 NEAR GEORGETOWN.

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 12:00Z, 8.2 hours before the alert went out and 161 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 12:00Z on 2011-07-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 741 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 12:00Z on 2011-07-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -21 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
741 J/kg
Mixed-layer CIN
-67 J/kg
Mixed-layer LCL
818 m above ground
0-6 km bulk shear
17 kt
0-1 km storm-relative helicity
-21 m²/s²
0-3 km storm-relative helicity
45 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.

253 
WGUS53 KLMK 302012
FFWLMK
KYC067-209-302315-
/O.NEW.KLMK.FF.W.0063.110730T2012Z-110730T2315Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE LOUISVILLE KY
412 PM EDT SAT JUL 30 2011

THE NATIONAL WEATHER SERVICE IN LOUISVILLE HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  FAYETTE COUNTY IN EAST CENTRAL KENTUCKY...
  THIS INCLUDES THE CITY OF LEXINGTON...
  SCOTT COUNTY IN EAST CENTRAL KENTUCKY...
  
* UNTIL 715 PM EDT

* AT 404 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED   
VERY HEAVY RAINFALL FROM TRAINING THUNDERSTORMS OVER THE WARNED 
AREA.  SOME LOCATIONS OVER SOUTHERN SCOTT COUNTY HAVE RECEIVED AS 
MUCH AS 2 OR 3 INCHES OF RAIN AND MORE IS EXPECTED.  FLOODING 
PROBLEMS LOOK LIKELY BECAUSE OF THIS AMOUNT OF RAIN AND VERY HEAVY 
RAINFALL RATES.  HEAVY RAINS ARE ANTICIPATED TO MOVE INTO FAYETTE 
COUNTY AFFECTING LEXINGTON.

* LOCATIONS IMPACTED INCLUDE...CADENTOWN...CARDINAL HILL...CHEVY
  CHASE...GEORGETOWN...HIGHLANDS...

  IN ADDITION...GEORGETOWN SCOTT COUNTY AIRPORT...MOON LAKE ESTATES
  AND MALLARD POINT ARE INCLUDED IN THIS FLASH FLOOD WARNING.

ADDITIONAL RAINFALL AMOUNTS OF 1 TO 3 INCHES 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 3800 8432 3795 8431 3789 8435 3790 8438
      3784 8439 3787 8441 3786 8444 3794 8448
      3801 8466 3810 8463 3818 8465 3819 8473
      3836 8474 3850 8456 3838 8446 3822 8442
      3819 8436 3811 8438 3807 8429 3802 8429

$$

AMS
2 follow-up statements
101 
WGUS73 KLMK 302119
FFSLMK

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE LOUISVILLE KY
519 PM EDT SAT JUL 30 2011

KYC067-302126-
/O.CAN.KLMK.FF.W.0063.000000T0000Z-110730T2315Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
FAYETTE KY-
519 PM EDT SAT JUL 30 2011

...THE FLASH FLOOD WARNING HAS BEEN CANCELLED FOR FAYETTE COUNTY...

THE STORMS WITH VERY HEAVY RAIN THAT PROMPTED THE WARNING HAVE MOVED 
OUT OF THE COUNTY AND THE FLASH FLOOD THREAT HAS ENDED.

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 3846 8453 3844 8453 3842 8449 3838 8446
      3828 8444 3822 8442 3821 8440 3813 8461
      3811 8463 3818 8465 3820 8473 3836 8474
      3850 8456

$$

KYC209-302315-
/O.CON.KLMK.FF.W.0063.000000T0000Z-110730T2315Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
SCOTT KY-
519 PM EDT SAT JUL 30 2011

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 715 PM EDT FOR SCOTT
COUNTY...

AT 512 PM EDT...TRAINED WEATHER SPOTTERS REPORTED 2.5 INCHES OF RAIN 
IN ONE HOUR NEAR GEORGETOWN.  ELKHORN CREEK FLOODED ONE LANE OF 
STATE HIGHWAY 460 NEAR GEORGETOWN.  THEREFORE THE FLASH FLOOD 
WARNING CONTINUES.  CONDITIONS SHOULD START TO IMPROVE THOUGH 
WITHIN THE HOUR.

* LOCATIONS IMPACTED INCLUDE...
  GEORGETOWN...

  IN ADDITION...GEORGETOWN SCOTT COUNTY AIRPORT...MOON LAKE ESTATES
  AND MALLARD POINT ARE INCLUDED IN THIS FLASH FLOOD WARNING.

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 3846 8453 3844 8453 3842 8449 3838 8446
      3828 8444 3822 8442 3821 8440 3813 8461
      3811 8463 3818 8465 3820 8473 3836 8474
      3850 8456

$$

AMS
338 
WGUS73 KLMK 302139
FFSLMK

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE LOUISVILLE KY
539 PM EDT SAT JUL 30 2011

KYC209-302146-
/O.CAN.KLMK.FF.W.0063.000000T0000Z-110730T2315Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
SCOTT KY-
539 PM EDT SAT JUL 30 2011

...THE FLASH FLOOD WARNING HAS BEEN CANCELLED FOR SCOTT COUNTY...

THE STORMS THAT PROMPTED THE WARNING HAVE MOVED OUT OF THE WARNED 
AREA.  ANY LOCATIONS THAT FLOODED FROM EARLIER HEAVY RAINS SHOULD 
NOW BE IMPROVING.  ONLY LIGHT ADDITIONAL RAINS ARE EXPECTED THIS 
EVENING.

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 3846 8453 3844 8453 3842 8449 3838 8446
      3828 8444 3822 8442 3821 8440 3813 8461
      3811 8463 3818 8465 3820 8473 3836 8474
      3850 8456

$$

AMS

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 30, 2:18 PM EDTAreal Flood AdvisoryLMKGarrard117 min
Jul 30, 3:05 PM EDTAreal Flood AdvisoryLMKClark, Madison3 hr
Jul 30, 3:15 PM EDTSevere Thunderstorm WarningLMKMadison45 min
Jul 30, 3:53 PM EDTAreal Flood AdvisoryLMKScott92 min
Jul 30, 3:55 PM EDTAreal Flood AdvisoryLMKFayette3 hr
Jul 30, 3:59 PM EDTAreal Flood AdvisoryLMKAdair2 hr
Jul 30, 3:59 PM EDTSevere Thunderstorm WarningLMKLincoln31 min
Jul 30, 4:01 PM EDTFlash Flood WarningLMKMadison69 min
Jul 30, 4:18 PM EDTSevere Thunderstorm WarningLMKCumberland, Metcalfe42 min
Jul 30, 4:34 PM EDTAreal Flood AdvisoryLMKGarrard, Jessamine3 hr
Jul 30, 4:44 PM EDTAreal Flood AdvisoryLMKCumberland, Metcalfe3 hr
Jul 30, 4:48 PM EDTFlash Flood WarningLMKCumberland, Metcalfe3 hr
Jul 30, 4:54 PM EDTAreal Flood AdvisoryLMKAllen, Simpson, Warren3 hr
Jul 30, 5:24 PM EDTSpecial Weather StatementLMKHart51 min

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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.