Alert archive / Kentucky / Flash Flood Watches in 2017

Flash Flood Watch 6, NWS Louisville, KY

May 27, 201740 counties in Kentucky

NWS Louisville, KY issued this flash flood watch at May 27, 2017, 3:02 AM CDT for 40 counties in Kentucky. It took effect at May 27, 2017, 1:00 PM CDT. It was in force for 13 hr.

The area

The counties it named.

The facts

Issued: May 27, 2017, 3:02 AM CDT (08:02 UTC)
In effect from: May 27, 2017, 1:00 PM CDT
Expired: May 28, 2017, 2:19 AM CDT
In force: 13 hr
Issued by: NWS Louisville, KY
Flood severity: None

All 40 counties

Adair County, KY, Allen County, KY, Anderson County, KY, Barren County, KY, Bourbon County, KY, Boyle County, KY, Bullitt County, KY, Butler County, KY, Casey County, KY, Clark County, KY, Clinton County, KY, Cumberland County, KY, Edmonson County, KY, Fayette County, KY, Franklin County, KY, Garrard County, KY, Grayson County, KY, Green County, KY, Hardin County, KY, Hart County, KY, Jefferson County, KY, Jessamine County, KY, Larue County, KY, Lincoln County, KY, Logan County, KY, Madison County, KY, Marion County, KY, Mercer County, KY, Metcalfe County, KY, Monroe County, KY, Nelson County, KY, Russell County, KY, Scott County, KY, Shelby County, KY, Simpson County, KY, Spencer County, KY, Taylor County, KY, Warren County, KY, Washington County, KY, Woodford County, KY

The radar

The Louisville radar (KLVX), 73 km from the middle of the area, began a volume at 08:03 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, 8.0 hours before the alert went out and 253 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1715 m above ground
0-6 km bulk shear: 48 kt
0-1 km storm-relative helicity: 59 m²/s²
0-3 km storm-relative helicity: 125 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this flash flood watch went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Louisville, KY wrote its last area forecast discussion before this flash flood watch went out at May 27, 2:37 AM CDT, 25 minutes earlier.

Area forecast discussion, May 27, 2:37 AM CDT, 25 minutes before

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Hazardous weather outlook, May 26, 2:24 PM CDT, 12 hours 38 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
May 27, 9:56 AM CDT	Special Weather Statement	LMK	Edmonson	34 min
May 27, 1:00 PM CDT	Special Weather Statement	LMK	Edmonson, Grayson	30 min
May 27, 1:16 PM CDT	Special Weather Statement	LMK	Hart	44 min
May 27, 1:25 PM CDT	Severe Thunderstorm Warning	LMK	Green, Hart, Metcalfe	35 min
May 27, 1:33 PM CDT	Special Weather Statement	LMK	Edmonson	12 min
May 27, 1:37 PM CDT	Special Weather Statement	LMK	Taylor	38 min
May 27, 1:46 PM CDT	Special Weather Statement	LMK	Jefferson	44 min
May 27, 1:47 PM CDT	Severe Thunderstorm Warning	LMK	Green, Taylor	28 min
May 27, 2:02 PM CDT	Special Weather Statement	LMK	Marion	43 min
May 27, 2:03 PM CDT	Special Weather Statement	LMK	Russell	27 min
May 27, 2:15 PM CDT	Special Weather Statement	LMK	Taylor	30 min
May 27, 2:27 PM CDT	Special Weather Statement	LMK	Shelby	33 min
May 27, 2:32 PM CDT	Special Weather Statement	LMK	Boyle	43 min
May 27, 2:37 PM CDT	Special Weather Statement	LMK	Casey, Lincoln	38 min
May 27, 2:46 PM CDT	Special Weather Statement	LMK	Casey	29 min
May 27, 3:00 PM CDT	Special Weather Statement	LMK	Jessamine, Mercer	30 min
May 27, 3:04 PM CDT	Severe Thunderstorm Warning	LMK	Boyle, Garrard, Lincoln	26 min
May 27, 3:07 PM CDT	Special Weather Statement	LMK	Madison	23 min
May 27, 3:12 PM CDT	Special Weather Statement	LMK	Casey, Lincoln	33 min
May 27, 3:14 PM CDT	Severe Thunderstorm Warning	LMK	Madison	16 min
May 27, 3:33 PM CDT	Special Weather Statement	LMK	Nelson, Washington	27 min
May 27, 3:37 PM CDT	Special Weather Statement	LMK	Clark, Madison	23 min
May 27, 4:16 PM CDT	Special Weather Statement	LMK	Woodford	29 min
May 27, 4:16 PM CDT	Severe Thunderstorm Warning	LMK	Meade	29 min
May 27, 4:27 PM CDT	Special Weather Statement	LMK	Hardin, Larue	33 min
May 27, 4:36 PM CDT	Special Weather Statement	LMK	Fayette	24 min
May 27, 4:41 PM CDT	Areal Flood Advisory	LMK	Breckinridge, Meade	3 hr
May 27, 4:43 PM CDT	Severe Thunderstorm Warning	LMK	Breckinridge, Bullitt, Hardin, Jefferson, Meade	32 min
May 27, 4:49 PM CDT	Severe Thunderstorm Warning	LMK	Green, Taylor	26 min
May 27, 5:20 PM CDT	Special Weather Statement	LMK	Hardin	25 min
May 27, 5:36 PM CDT	Severe Thunderstorm Warning	LMK	Adair, Casey, Green, Marion, Taylor	24 min
May 27, 5:36 PM CDT	Severe Thunderstorm Warning	LMK	Breckinridge, Grayson, Hardin, Larue	24 min
May 27, 5:39 PM CDT	Special Weather Statement	LMK	Metcalfe	36 min
May 27, 5:59 PM CDT	Severe Thunderstorm Warning	LMK	Breckinridge, Grayson, Hardin, Larue	31 min
May 27, 6:05 PM CDT	Severe Thunderstorm Warning	LMK	Cumberland, Monroe	25 min
May 27, 6:07 PM CDT	Severe Thunderstorm Warning	LMK	Breckinridge, Butler, Grayson, Hancock, Ohio	38 min
May 27, 6:10 PM CDT	Severe Thunderstorm Warning	LMK	Adair, Casey, Taylor	35 min
May 27, 6:16 PM CDT	Severe Thunderstorm Warning	LMK	Adair, Green, Hart, Taylor	29 min
May 27, 6:18 PM CDT	Severe Thunderstorm Warning	LMK	Edmonson, Grayson, Hardin, Hart, Larue	27 min
May 27, 6:26 PM CDT	Flash Flood Warning Emergency	LMK	Casey, Taylor	4 hr
May 27, 6:29 PM CDT	Severe Thunderstorm Warning	LMK	Logan	16 min
May 27, 6:32 PM CDT	Special Weather Statement	LMK	Clinton, Cumberland, Monroe	28 min
May 27, 6:35 PM CDT	Severe Thunderstorm Warning	LMK	Breckinridge, Hancock, Meade, Ohio	25 min
May 27, 6:40 PM CDT	Severe Thunderstorm Warning	LMK	Clinton, Cumberland, Russell	35 min
May 27, 6:44 PM CDT	Severe Thunderstorm Warning	LMK	Adair, Casey, Lincoln	31 min
May 27, 6:44 PM CDT	Severe Thunderstorm Warning	LMK	Logan, Simpson	31 min
May 27, 1:01 PM CDT	Special Weather Statement	LMK	Floyd	44 min
May 27, 1:06 PM CDT	Special Weather Statement	LMK	Dubois	39 min
May 27, 1:54 PM CDT	Special Weather Statement	LMK	Orange	51 min
May 27, 2:33 PM CDT	Special Weather Statement	LMK	Crawford	27 min
May 27, 2:39 PM CDT	Severe Thunderstorm Warning	LMK	Crawford, Orange	36 min
May 27, 3:11 PM CDT	Special Weather Statement	LMK	Crawford	34 min
May 27, 3:31 PM CDT	Severe Thunderstorm Warning	LMK	Crawford, Perry	29 min
May 27, 3:49 PM CDT	Areal Flood Advisory	LMK	Crawford, Perry	3 hr
May 27, 4:00 PM CDT	Special Weather Statement	LMK	Crawford	45 min
May 27, 5:10 PM CDT	Special Weather Statement	LMK	Perry	35 min
May 27, 5:13 PM CDT	Special Weather Statement	LMK	Dubois	32 min
May 27, 5:14 PM CDT	Flash Flood Warning	LMK	Crawford, Perry	3 hr
May 27, 5:23 PM CDT	Severe Thunderstorm Warning	LMK	Dubois, Perry	37 min
May 27, 6:29 PM CDT	Areal Flood Advisory	LMK	Crawford, Dubois	3 hr

Nearby

Flash Flood Watches in Kentucky, 2017 Every flash flood watch 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.