Alert archive / Kentucky / Flash Flood Warnings in 2016

Flash Flood Warning 4, NWS Louisville, KY

April 27, 2016Grayson County, Hardin County, Kentucky

NWS Louisville, KY issued this flash flood warning at Apr 27, 2016, 1:47 PM CDT for Grayson County, Hardin 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 27, 2016, 1:47 PM CDT (18:47 UTC)
Expired: Apr 27, 2016, 4:45 PM CDT
In force: 3 hr
Issued by: NWS Louisville, KY
Area: Storm-based polygon
Flood severity: None

Counties Grayson County, KY, Hardin County, KY

The radar

The Louisville radar (KLVX), 58 km from the middle of the area, began a volume at 18:47 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

Nashville Metro, TN (KBNA), launched 12:00Z, 6.8 hours before the alert went out and 156 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: 669 J/kg
Mixed-layer CIN: -79 J/kg
Mixed-layer LCL: 828 m above ground
0-6 km bulk shear: 18 kt
0-1 km storm-relative helicity: 122 m²/s²
0-3 km storm-relative helicity: 166 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.5

Open this sounding in Storm Lab

The text

As transmitted.

059 
WGUS53 KLMK 271847
FFWLMK
KYC085-093-272145-
/O.NEW.KLMK.FF.W.0004.160427T1847Z-160427T2145Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE LOUISVILLE KY
247 PM EDT WED APR 27 2016

THE NATIONAL WEATHER SERVICE IN LOUISVILLE HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  SOUTHEASTERN HARDIN COUNTY IN CENTRAL KENTUCKY...
  SOUTHEASTERN GRAYSON COUNTY IN CENTRAL KENTUCKY...

* UNTIL 545 PM EDT/445 PM CDT/

* AT 245 PM EDT/145 PM CDT/...DOPPLER RADAR INDICATED THUNDERSTORMS
  PRODUCING HEAVY RAIN ACROSS THE WARNED AREA. 2 TO 3 INCHES OF RAIN
  HAVE ALREADY FALLEN. FLASH FLOODING IS EXPECTED TO BEGIN SHORTLY.

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  SONORA...SNAP...NOLIN...SKAGGSTOWN...ROCK CREEK...ROYAL...WHITE MILLS
  JUNCTION...PEONIA...STAR MILLS AND LACON.

ADDITIONAL RAINFALL AMOUNTS OF 1 TO 2 INCHES ARE POSSIBLE IN THE
WARNED AREA AS MORE THUNDERSTORMS MOVE OVER THE REGION.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TURN AROUND...DON'T DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD
DEATHS OCCUR IN VEHICLES.

&&

LAT...LON 3746 8618 3760 8611 3763 8597 3760 8580
      3757 8582 3755 8587 3753 8588 3745 8599
      3744 8605 3743 8603 3740 8604 3734 8613
      3735 8616 3734 8615 3733 8617 3734 8633

$$

SCHOETTMER

1 follow-up statement

896 
WGUS73 KLMK 272135
FFSLMK

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE LOUISVILLE KY
535 PM EDT WED APR 27 2016

KYC085-093-272145-
/O.EXP.KLMK.FF.W.0004.000000T0000Z-160427T2145Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
HARDIN KY-GRAYSON KY-
535 PM EDT WED APR 27 2016

...THE FLASH FLOOD WARNING FOR SOUTHEASTERN HARDIN AND SOUTHEASTERN
GRAYSON COUNTIES WILL EXPIRE AT 545 PM EDT...

THE HEAVY RAIN HAS ENDED...AND FLOODING IS NO LONGER EXPECTED TO POSE
A THREAT.

LAT...LON 3746 8618 3760 8611 3763 8597 3760 8580
      3757 8582 3755 8587 3753 8588 3745 8599
      3744 8605 3743 8603 3740 8604 3734 8613
      3735 8616 3734 8615 3733 8617 3734 8633

$$

SCHOETTMER

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 26, 7:05 PM CDT	Severe Thunderstorm Warning	LMK	Breckinridge, Meade	40 min
Apr 26, 7:30 PM CDT	Special Weather Statement	LMK	Butler, Logan	60 min
Apr 26, 7:43 PM CDT	Special Weather Statement	LMK	Bullitt, Jefferson	62 min
Apr 26, 7:47 PM CDT	Severe Thunderstorm Warning	LMK	Jefferson	28 min
Apr 26, 7:49 PM CDT	Severe Thunderstorm Warning	LMK	Trimble	26 min
Apr 26, 8:10 PM CDT	Special Weather Statement	LMK	Trimble	35 min
Apr 26, 8:17 PM CDT	Special Weather Statement	LMK	Edmonson, Grayson, Hart, Logan, Simpson, Warren	58 min
Apr 26, 8:22 PM CDT	Special Weather Statement	LMK	Henry, Oldham, Shelby, Spencer	38 min
Apr 26, 8:28 PM CDT	Severe Thunderstorm Warning	LMK	Franklin, Henry, Oldham, Shelby, Spencer	32 min
Apr 26, 8:46 PM CDT	Special Weather Statement	LMK	Allen, Barren, Green, Hart, Metcalfe	44 min
Apr 26, 8:53 PM CDT	Severe Thunderstorm Warning	LMK	Franklin, Henry, Scott, Shelby	37 min
Apr 26, 9:27 PM CDT	Special Weather Statement	LMK	Bourbon, Boyle, Fayette, Garrard, Harrison, Jessamine and 3 more	48 min
Apr 26, 9:49 PM CDT	Special Weather Statement	LMK	Bourbon, Clark, Fayette, Madison, Nicholas	56 min
Apr 26, 9:59 PM CDT	Special Weather Statement	LMK	Lincoln	46 min
Apr 27, 4:22 AM CDT	Severe Thunderstorm Warning	LMK	Butler, Edmonson, Grayson	23 min
Apr 27, 12:30 PM CDT	Special Weather Statement	LMK	Hardin, Larue	60 min
Apr 27, 1:18 PM CDT	Special Weather Statement	LMK	Spencer	27 min
Apr 27, 1:32 PM CDT	Areal Flood Advisory	LMK	Grayson, Hardin	3 hr
Apr 27, 2:09 PM CDT	Special Weather Statement	LMK	Edmonson	36 min
Apr 27, 2:16 PM CDT	Severe Thunderstorm Warning	LMK	Butler, Edmonson, Warren	29 min
Apr 27, 2:45 PM CDT	Special Weather Statement	LMK	Edmonson	30 min
Apr 27, 3:15 PM CDT	Special Weather Statement	LMK	Casey	30 min
Apr 27, 3:43 PM CDT	Special Weather Statement	LMK	Casey	32 min
Apr 27, 3:44 PM CDT	Severe Thunderstorm Warning	LMK	Casey, Lincoln	31 min
Apr 27, 3:48 PM CDT	Severe Thunderstorm Warning	LMK	Green, Taylor	27 min
Apr 27, 4:11 PM CDT	Special Weather Statement	LMK	Taylor	34 min
Apr 27, 4:12 PM CDT	Severe Thunderstorm Warning	LMK	Lincoln	18 min
Apr 27, 4:26 PM CDT	Special Weather Statement	LMK	Adair, Casey	34 min
Apr 27, 4:51 PM CDT	Severe Thunderstorm Warning	LMK	Casey, Russell	24 min
Apr 27, 5:01 PM CDT	Tornado Warning	LMK	Ohio	29 min
Apr 27, 5:29 PM CDT	Severe Thunderstorm Warning	LMK	Ohio	31 min
Apr 27, 5:57 PM CDT	Special Weather Statement	LMK	Ohio	33 min
Apr 27, 6:16 PM CDT	Severe Thunderstorm Warning	LMK	Breckinridge, Hancock, Ohio	44 min
Apr 27, 6:24 PM CDT	Special Weather Statement	LMK	Butler, Logan, Ohio, Simpson, Warren	51 min
Apr 27, 6:38 PM CDT	Flash Flood Warning	LMK	Ohio	3 hr
Apr 27, 6:48 PM CDT	Severe Thunderstorm Warning	LMK	Breckinridge, Butler, Grayson, Ohio	42 min
Apr 27, 6:51 PM CDT	Severe Thunderstorm Warning	LMK	Allen, Butler, Edmonson, Grayson, Simpson, Warren	39 min
Apr 27, 6:52 PM CDT	Severe Thunderstorm Warning	LMK	Breckinridge, Hancock, Meade, Ohio	38 min

Nearby

Flash Flood Warnings in Kentucky, 2016 Every flash flood warning in 2016

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.