Alert archive / Kentucky / Flash Flood Warnings in 2012

Flash Flood Warning 31, NWS Louisville, KY

August 9, 2012Madison County, Kentucky

NWS Louisville, KY issued this flash flood warning at Aug 9, 2012, 3:38 PM EDT for Madison County, Kentucky. It was in force for 85 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: Aug 9, 2012, 3:38 PM EDT (19:38 UTC)
Expired: Aug 9, 2012, 5:03 PM EDT
In force: 85 min
Issued by: NWS Louisville, KY
Area: Storm-based polygon
Flood severity: None

County Madison County, KY

The radar

The Jackson,KY radar (KJKL), 76 km from the middle of the area, began a volume at 19:40 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, 7.6 hours before the alert went out and 194 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: 946 J/kg
Mixed-layer CIN: -111 J/kg
Mixed-layer LCL: 1085 m above ground
0-6 km bulk shear: 29 kt
0-1 km storm-relative helicity: 81 m²/s²
0-3 km storm-relative helicity: 99 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.5

Open this sounding in Storm Lab

The text

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

668 
WGUS53 KLMK 091938
FFWLMK
KYC151-092235-
/O.NEW.KLMK.FF.W.0031.120809T1938Z-120809T2235Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE LOUISVILLE KY
338 PM EDT THU AUG 9 2012

THE NATIONAL WEATHER SERVICE IN LOUISVILLE HAS ISSUED A

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

* UNTIL 635 PM EDT

* AT 334 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED   
VERY HEAVY RAINFALL FROM A THUNDERSTORM MOVING INTO THE WARNED 
AREA.  EXPECT TORRENTIAL DOWNPOURS WHICH WILL LIKELY CAUSE FLOODING 
ESPECIALLY IN FLOOD PRONE LOCATIONS.

* LOCATIONS IMPACTED INCLUDE...RICHMOND...

  IN ADDITION...UNION CITY...HILLCREST AND RUTHTON ARE INCLUDED IN
  THIS FLASH FLOOD WARNING.

  FLASH FLOOD PRONE AREAS IN THIS WARNING...
  OTTER CREEK BACKS UP ONTO RED HOUSE ROAD.
  A BRANCH OF KNOB LICK CREEK OVERFLOWS ONTO KNOB LICK ROAD.

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.

REPORT FLOODING TO LOCAL LAW ENFORCEMENT OR POST YOUR REPORT TO THE
NATIONAL WEATHER SERVICE LOUISVILLE FACEBOOK PAGE.

&&

LAT...LON 3773 8409 3767 8409 3763 8412 3756 8409
      3755 8417 3752 8420 3753 8434 3759 8437
      3762 8441 3776 8446 3787 8414 3785 8411
      3786 8409 3784 8408 3783 8410 3780 8407
      3778 8410 3777 8408 3774 8407

$$

AMS

1 follow-up statement

581 
WGUS73 KLMK 092103
FFSLMK

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE LOUISVILLE KY
503 PM EDT THU AUG 9 2012

KYC151-092113-
/O.CAN.KLMK.FF.W.0031.000000T0000Z-120809T2235Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
MADISON KY-
503 PM EDT THU AUG 9 2012

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

THE STORMS THAT PROMPTED THE WARNING HAVE WEAKENED AND ARE NO LONGER
PRODUCING HEAVY RAIN.

REPORT SEVERE WEATHER TO LOCAL LAW ENFORCEMENT OR POST YOUR REPORT TO
THE NATIONAL WEATHER SERVICE LOUISVILLE FACEBOOK PAGE.

LAT...LON 3773 8409 3767 8409 3763 8412 3756 8409
      3755 8417 3752 8420 3753 8434 3759 8437
      3762 8441 3776 8446 3787 8414 3785 8411
      3786 8409 3784 8408 3783 8410 3780 8407
      3778 8410 3777 8408 3774 8407

$$

RS

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 9, 11:13 AM EDT	Special Weather Statement	LMK	Allen	42 min
Aug 9, 1:05 PM EDT	Special Weather Statement	LMK	Hardin	30 min
Aug 9, 3:32 PM EDT	Severe Thunderstorm Warning	LMK	Madison	33 min
Aug 9, 3:35 PM EDT	Areal Flood Advisory	LMK	Lincoln	2 hr
Aug 9, 3:35 PM EDT	Severe Thunderstorm Warning	LMK	Fayette, Jessamine	28 min
Aug 9, 3:55 PM EDT	Areal Flood Advisory	LMK	Fayette, Jessamine	3 hr
Aug 9, 4:06 PM EDT	Special Weather Statement	LMK	Fayette, Jessamine, Woodford	44 min
Aug 9, 4:15 PM EDT	Severe Thunderstorm Warning	LMK	Fayette, Woodford	30 min
Aug 9, 4:34 PM EDT	Special Weather Statement	LMK	Bourbon, Harrison, Nicholas, Scott	46 min
Aug 9, 4:50 PM EDT	Severe Thunderstorm Warning	LMK	Harrison	45 min
Aug 9, 5:04 PM EDT	Special Weather Statement	LMK	Henry	46 min
Aug 9, 5:23 PM EDT	Severe Thunderstorm Warning	LMK	Harrison	22 min
Aug 9, 5:25 PM EDT	Severe Thunderstorm Warning	LMK	Franklin, Henry, Shelby	40 min
Aug 9, 5:30 PM EDT	Special Weather Statement	LMK	Harrison	45 min
Aug 9, 5:46 PM EDT	Special Weather Statement	LMK	Harrison	44 min
Aug 9, 6:07 PM EDT	Special Weather Statement	LMK	Franklin	43 min
Aug 9, 6:11 PM EDT	Special Weather Statement	LMK	Bourbon, Scott	44 min
Aug 9, 6:17 PM EDT	Special Weather Statement	LMK	Harrison	43 min

Nearby

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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.