Alert archive / Kentucky / Flash Flood Warnings in 2011

Flash Flood Warning 41, NWS Louisville, KY

May 10, 2011Nicholas County, Kentucky

NWS Louisville, KY issued this flash flood warning at May 10, 2011, 4:45 PM EDT for Nicholas County, Kentucky. It was in force for 84 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
May 10, 2011, 4:45 PM EDT (20:45 UTC)
Expired
May 10, 2011, 6:09 PM EDT
In force
84 min
Issued by
NWS Louisville, KY
Area
Storm-based polygon
Flood severity
None

County Nicholas County, KY

The radar

The Jackson,KY radar (KJKL), 99 km from the middle of the area, began a volume at 20:49 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 12:00Z, 8.8 hours before the alert went out and 127 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 2011-05-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 9 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Cncnati-Daytn, OH at 12:00Z on 2011-05-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 194 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
9 J/kg
Mixed-layer CIN
-487 J/kg
Mixed-layer LCL
1473 m above ground
0-6 km bulk shear
46 kt
0-1 km storm-relative helicity
194 m²/s²
0-3 km storm-relative helicity
252 m²/s²
Significant tornado parameter
0.0
Supercell composite
4.2

Open this sounding in Storm Lab

The text

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

858 
WGUS53 KLMK 102045
FFWLMK
KYC181-102300-
/O.NEW.KLMK.FF.W.0041.110510T2045Z-110510T2300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE LOUISVILLE KY
445 PM EDT TUE MAY 10 2011

THE NATIONAL WEATHER SERVICE IN LOUISVILLE HAS ISSUED A

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

* UNTIL 700 PM EDT

* AT 436 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED   
  FLASH FLOODING FROM A THUNDERSTORM OVER THE WARNED AREA.

* LOCATIONS IMPACTED INCLUDE...CARLISLE...

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

BRUSHY FORK WILL LIKELY OVERFLOW EAST UNION ROAD AT THE EAST END 
BALL PARK AND ALSO MOREEFIELD ROAD.  

ADDITIONAL RAINFALL AMOUNTS OF 1 TO 2 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...HAVE THE NEAREST LAW ENFORCEMENT AGENCY RELAY
YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST OFFICE IN
LOUISVILLE.

&&

LAT...LON 3830 8385 3820 8398 3822 8399 3821 8399
      3820 8400 3822 8405 3825 8407 3826 8411
      3834 8416 3837 8421 3846 8409 3843 8395
      3837 8391 3834 8385

$$

DK
1 follow-up statement
738 
WGUS73 KLMK 102209
FFSLMK

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE LOUISVILLE KY
609 PM EDT TUE MAY 10 2011

KYC181-102216-
/O.CAN.KLMK.FF.W.0041.000000T0000Z-110510T2300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
NICHOLAS KY-
609 PM EDT TUE MAY 10 2011

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

THE STORMS THAT PROMPTED THE WARNING HAVE MOVED OUT OF THE WARNED 
AREA...HOWEVER ADDITIONAL THUNDERSTORMS IN HARRISON COUNTY WILL MOVE 
ACROSS PARTS OF NICHOLAS COUNTY THROUGH 630 PM EDT. 

WATER THAT WAS OVER ROADWAYS EARLIER HAS RECEDED. 

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.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 800 PM EDT FOR 
SOUTH CENTRAL INDIANA AND EASTERN KENTUCKY.

LAT...LON 3830 8385 3820 8398 3822 8399 3821 8399
      3820 8400 3822 8405 3825 8407 3826 8411
      3834 8416 3837 8421 3846 8409 3843 8395
      3837 8391 3834 8385

$$

DK

The office that day

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

IssuedProductOfficeCountiesLasted
May 10, 2:45 PM EDTSpecial Weather StatementLMKBourbon, Nicholas30 min
May 10, 2:49 PM EDTSevere Thunderstorm WarningLMKBourbon, Harrison, Nicholas26 min
May 10, 3:15 PM EDTSevere Thunderstorm WarningLMKBourbon, Nicholas30 min
May 10, 3:35 PM EDTSevere Thunderstorm WarningLMKHarrison, Nicholas25 min
May 10, 3:45 PM EDTSevere Thunderstorm WarningLMKNicholas15 min
May 10, 3:55 PM EDTSevere Thunderstorm WarningLMKHarrison, Nicholas35 min
May 10, 4:22 PM EDTSevere Thunderstorm WarningLMKNicholas23 min
May 10, 4:45 PM EDTSevere Thunderstorm WarningLMKNicholas30 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.