Alert archive / Kentucky / Flash Flood Warnings in 2017

Flash Flood Warning 13, NWS Louisville, KY

May 27, 2017Scott County, Kentucky

NWS Louisville, KY issued this flash flood warning at May 27, 2017, 10:00 PM EDT for Scott 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
May 27, 2017, 10:00 PM EDT (02:00 UTC)
Expired
May 28, 2017, 1:00 AM EDT
In force
3 hr
Issued by
NWS Louisville, KY
Area
Storm-based polygon
Flood severity
None

County Scott County, KY

The radar

The Cincinnati radar (KILN), 129 km from the middle of the area, began a volume at 02:01 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 00:00Z, 2.0 hours before the alert went out and 130 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 00:00Z on 2017-05-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 877 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 00:00Z on 2017-05-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 4 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
877 J/kg
Mixed-layer CIN
-11 J/kg
Mixed-layer LCL
1461 m above ground
0-6 km bulk shear
10 kt
0-1 km storm-relative helicity
4 m²/s²
0-3 km storm-relative helicity
95 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

800 
WGUS53 KLMK 280200
FFWLMK
KYC209-280500-
/O.NEW.KLMK.FF.W.0013.170528T0200Z-170528T0500Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Louisville KY
1000 PM EDT SAT MAY 27 2017

The National Weather Service in Louisville has issued a

* Flash Flood Warning for...
  Northern Scott County in central Kentucky...

* Until 100 AM EDT

* At 1000 PM EDT, Doppler radar indicated thunderstorms producing
  heavy rain across the warned area. Up to two inches of rain have
  already fallen. Flash flooding is expected to begin shortly.

* Some locations that will experience flooding include...
  Sadieville, Alberta, Double Culvert, Biddle, Stonewall, Josephine,
  Muddy Ford, Porter and Davis.

Additional rainfall amounts of one to two inches are possible in the 
warned area.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Be especially cautious at night when it is harder to recognize the
dangers of flooding.

Please report flooding to your local law enforcement agency when you
can do so safely.

&&

LAT...LON 3847 8455 3845 8453 3843 8453 3842 8450
      3840 8447 3838 8446 3834 8446 3832 8444
      3828 8447 3838 8470 3842 8465 3843 8462
      3849 8455

$$

RJS
1 follow-up statement
916 
WGUS73 KLMK 280407
FFSLMK

Flash Flood Statement
National Weather Service Louisville KY
1207 AM EDT SUN MAY 28 2017

KYC209-280417-
/O.CAN.KLMK.FF.W.0013.000000T0000Z-170528T0500Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Scott KY-
1207 AM EDT SUN MAY 28 2017

...THE FLASH FLOOD WARNING FOR NORTHERN SCOTT COUNTY IS CANCELLED...

The heavy rain has ended. Flooding is no longer expected to pose a
threat. Please continue to heed any remaining road closures.

LAT...LON 3847 8455 3845 8453 3843 8453 3842 8450
      3840 8447 3838 8446 3834 8446 3832 8444
      3828 8447 3838 8470 3842 8465 3843 8462
      3849 8455

$$

RJS

The office that day

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

IssuedProductOfficeCountiesLasted
May 27, 8:00 PM EDTSpecial Weather StatementLMKHarrison30 min
May 27, 8:01 PM EDTSpecial Weather StatementLMKBreckinridge, Meade29 min
May 27, 8:02 PM EDTSpecial Weather StatementLMKAdair, Metcalfe28 min
May 27, 8:04 PM EDTSpecial Weather StatementLMKTrimble26 min
May 27, 8:09 PM EDTSevere Thunderstorm WarningLMKAdair, Barren, Cumberland, Green, Metcalfe, Monroe and 1 more36 min
May 27, 8:12 PM EDTSevere Thunderstorm WarningLMKRussell18 min
May 27, 8:15 PM EDTSevere Thunderstorm WarningLMKHenry, Oldham, Trimble30 min
May 27, 8:34 PM EDTAreal Flood AdvisoryLMKAdair, Casey, Clinton, Cumberland, Green, Metcalfe and 3 more3 hr
May 27, 8:34 PM EDTSpecial Weather StatementLMKClinton, Cumberland, Russell26 min
May 27, 8:45 PM EDTFlash Flood WarningLMKClinton, Cumberland4 hr
May 27, 8:52 PM EDTSpecial Weather StatementLMKTrimble23 min
May 27, 9:02 PM EDTSpecial Weather StatementLMKLogan, Simpson28 min
May 27, 9:05 PM EDTSpecial Weather StatementLMKHenry25 min
May 27, 9:16 PM EDTAreal Flood AdvisoryLMKScott119 min
May 27, 9:25 PM EDTSpecial Weather StatementLMKScott35 min
May 27, 11:27 PM EDTAreal Flood WarningLMKAdair, Casey, Taylor3 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.