Alert archive / Kentucky / Flash Flood Warnings in 2017

Flash Flood Warning 28, NWS Louisville, KY

September 1, 2017Logan County, Simpson County, Kentucky

NWS Louisville, KY issued this flash flood warning at Sep 1, 2017, 5:19 AM CDT for Logan County, Simpson County, Kentucky. It was in force for 6 hr. 7 reports 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
Sep 1, 2017, 5:19 AM CDT (10:19 UTC)
Expired
Sep 1, 2017, 11:15 AM CDT
In force
6 hr
Issued by
NWS Louisville, KY
Area
Storm-based polygon
Flood severity
None

Counties Logan County, KY, Simpson County, KY

The radar

The Nashville radar (KOHX), 55 km from the middle of the area, began a volume at 10:20 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
Sep 1, 6:18 AM CDTFLASH FLOODFranklin, KYNUMEROUS ROADS CLOSED WITH OTHER ROADS IMPASSABLE IN PLACES. SIMPSON COUNTY SCHOOLS ARE CLOSED DUE TO FLOODING.
Sep 1, 8:15 AM CDTFLASH FLOOD1 Wsw Russellville, KYWATER RESCUE WITH RESIDENTS EVACUATED FROM A DUPLEX ON EMERSON BYPASS.
Sep 1, 8:40 AM CDTFLASH FLOOD4 Ene Russellville, KYWATER RESCUE OF A PERSON TRAPPED IN A VEHICLE ON STEVENSON MILL ROAD.
Sep 1, 9:30 AM CDTHEAVY RAIN 8.22 W Russellville, KYKENTUCKY MESONET STATION RSVL STORM TOTAL RAINFALL THROUGH 9:30 AM CDT.
Sep 1, 9:35 AM CDTHEAVY RAIN 6.833 Ene Providence, KYKENTUCKY MESONET STATION SWZR STORM TOTAL RAINFALL AS OF 9:35 AM CDT.
Sep 1, 10:20 AM CDTHEAVY RAIN 7.482 W Russellville, KYKENTUCKY MESONET STATION RSVL. CORRECTED STORM TOTAL RAINFALL THROUGH 1020 AM CDT.
Sep 1, 10:25 AM CDTHEAVY RAIN 6.283 Ene Providence, KYKENTUCKY MESONET STATION SWZR. CORRECTED STORM TOTAL RAINFALL AS OF 1025 AM CDT.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 00:00Z, 10.3 hours before the alert went out and 67 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, Nashville Metro, TN at 00:00Z on 2017-09-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 292 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, Nashville Metro, TN at 00:00Z on 2017-09-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 119 square meters per square second.193958Sfc1 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
292 J/kg
Mixed-layer CIN
-37 J/kg
Mixed-layer LCL
859 m above ground
0-6 km bulk shear
39 kt
0-1 km storm-relative helicity
119 m²/s²
0-3 km storm-relative helicity
192 m²/s²
Significant tornado parameter
0.2
Supercell composite
1.9

Open this sounding in Storm Lab

The text

As transmitted.

043 
WGUS53 KLMK 011019
FFWLMK
KYC141-213-011615-
/O.NEW.KLMK.FF.W.0028.170901T1019Z-170901T1615Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Louisville KY
519 AM CDT FRI SEP 1 2017

The National Weather Service in Louisville has issued a

* Flash Flood Warning for...
  Logan County in central Kentucky...
  Simpson County in south central Kentucky...

* Until 1115 AM CDT

* At 517 AM CDT, automated observing stations over the warned area 
  indicated between 4 and 6 inches of rain already has fallen. 
  Several roads are closed or impassable due to high water.

* Some locations that will experience flooding include...
  Russellville, Auburn, Adairville, Justice, Gordonsville, Black
  Jack, Dennis, Geddes, Crossroad and Mcelroy Ford.

Additional rainfall amounts of 2 to 3 inches are possible in the 
warned area over the next few hours.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.

&&

LAT...LON 3665 8659 3664 8706 3692 8706 3693 8664
      3683 8658 3681 8640 3665 8642 3665 8651
      3663 8656

$$

RJS
2 follow-up statements
561 
WGUS73 KLMK 011354
FFSLMK

Flash Flood Statement
National Weather Service Louisville KY
854 AM CDT FRI SEP 1 2017

KYC141-213-011615-
/O.CON.KLMK.FF.W.0028.000000T0000Z-170901T1615Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Logan KY-Simpson KY-
854 AM CDT FRI SEP 1 2017

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1115 AM CDT FOR
LOGAN AND SIMPSON COUNTIES...

At 853 AM CDT, emergency management reported flash flooding in 
Russellville. Up to 6 inches of rain have fallen. Flash flooding is 
already occurring with some evacuations and water rescues already 
taking place. 

Some locations that will experience flooding include...
Russellville, Auburn, Adairville, Justice, Gordonsville, Black Jack,
Dennis, Geddes, Crossroad and Mcelroy Ford.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.

&&

LAT...LON 3665 8659 3664 8706 3692 8706 3693 8664
      3683 8658 3681 8640 3665 8642 3665 8651
      3663 8656

$$

SCHOETTMER
684 
WGUS73 KLMK 011610
FFSLMK

Flash Flood Statement
National Weather Service Louisville KY
1110 AM CDT FRI SEP 1 2017

KYC141-213-011619-
/O.EXP.KLMK.FF.W.0028.000000T0000Z-170901T1615Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Logan KY-Simpson KY-
1110 AM CDT FRI SEP 1 2017

...THE FLASH FLOOD WARNING FOR LOGAN AND SIMPSON COUNTIES WILL EXPIRE
AT 1115 AM CDT...

The heavy rain has ended, and calls to county officials have 
revealed that most of the flood waters are now standing rather than 
flowing. So, the Flash Flood Warning is allowed to expire and has 
been replaced by an Areal Flood Warning.

LAT...LON 3665 8659 3664 8706 3692 8706 3693 8664
      3683 8658 3681 8640 3665 8642 3665 8651
      3663 8656

$$

SCHOETTMER

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 31, 11:32 PM CDTFlash Flood WarningLMKAllen, Logan, Simpson6 hr
Aug 31, 11:42 PM CDTSpecial Weather StatementLMKAdair, Barren, Clinton, Cumberland, Metcalfe, Monroe and 1 more63 min
Sep 1, 12:20 AM CDTSpecial Weather StatementLMKButler, Edmonson, Warren55 min
Sep 1, 1:30 AM CDTFlash Flood WarningLMKButler, Logan, Warren6 hr
Sep 1, 1:56 AM CDTAreal Flood AdvisoryLMKAdair, Barren, Edmonson, Green, Hart, Metcalfe3 hr
Sep 1, 2:52 AM CDTAreal Flood AdvisoryLMKButler, Edmonson, Grayson, Hardin, Ohio3 hr
Sep 1, 3:31 AM CDTFlash Flood WarningLMKButler, Edmonson, Grayson, Ohio6 hr
Sep 1, 3:52 AM CDTFlash Flood WarningLMKBarren, Hart6 hr
Sep 1, 4:12 AM CDTAreal Flood AdvisoryLMKHardin, Hart, Larue4 hr
Sep 1, 4:42 AM CDTAreal Flood AdvisoryLMKBreckinridge, Hancock4 hr
Sep 1, 6:19 AM CDTAreal Flood AdvisoryLMKAllen, Barren6 hr
Sep 1, 6:37 AM CDTSpecial Weather StatementLMKBarren, Warren38 min
Sep 1, 7:05 AM CDTAreal Flood AdvisoryLMKHart, Metcalfe, Monroe6 hr
Sep 1, 7:25 AM CDTAreal Flood WarningLMKButler, Edmonson, Grayson, Logan, Ohio, Warren6 hr
Sep 1, 7:47 AM CDTSpecial Weather StatementLMKHart, Metcalfe43 min
Sep 1, 8:35 AM CDTFlash Flood WarningLMKAdair, Green, Hart, Metcalfe3 hr
Sep 1, 8:50 AM CDTSpecial Weather StatementLMKTaylor25 min
Sep 1, 8:52 AM CDTSpecial Weather StatementLMKGreen23 min
Sep 1, 9:24 AM CDTWind AdvisoryLMKAdair, Allen, Anderson, Barren, Bourbon, Boyle and 39 more7 hr
Sep 1, 9:40 AM CDTAreal Flood WarningLMKBarren, Hart6 hr
Sep 1, 10:04 AM CDTRiver Flood WarningLMKButler, Warren3 days
Sep 1, 10:04 AM CDTRiver Flood WarningLMKButler, Muhlenberg, Ohio4 days
Sep 1, 11:09 AM CDTAreal Flood WarningLMKLogan, Simpson, Warren6 hr
Sep 1, 11:29 AM CDTAreal Flood WarningLMKAdair, Green, Hart, Metcalfe3 hr
Sep 1, 1:24 PM CDTAreal Flood WarningLMKButler, Edmonson, Grayson, Logan, Warren3 hr
Sep 1, 1:56 PM CDTAreal Flood AdvisoryLMKBreckinridge, Bullitt, Hardin, Henry, Jefferson, Meade and 4 more6 hr
Sep 1, 2:11 PM CDTAreal Flood AdvisoryLMKAnderson, Bullitt, Green, Hardin, Hart, Larue and 6 more6 hr
Sep 1, 3:42 PM CDTRiver Flood WarningLMKWarren22 hr

Nearby

Flash Flood Warnings in Kentucky, 2017Every flash flood warning in 2017

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.