Alert archive / Kentucky / Flash Flood Watches in 2015

Flash Flood Watch 9, NWS Louisville, KY

July 13, 201549 counties in Kentucky; 10 counties in Indiana

NWS Louisville, KY issued this flash flood watch at Jul 13, 2015, 2:46 AM CDT for 49 counties in Kentucky; 10 counties in Indiana. It took effect at Jul 13, 2015, 10:00 AM CDT. It was in force for 38 hr.

The area

The counties it named.

The facts

Issued: Jul 13, 2015, 2:46 AM CDT (07:46 UTC)
In effect from: Jul 13, 2015, 10:00 AM CDT
Expired: Jul 15, 2015, 12:25 AM CDT
In force: 38 hr
Issued by: NWS Louisville, KY
Flood severity: None

All 59 counties

Clark County, IN, Crawford County, IN, Dubois County, IN, Floyd County, IN, Harrison County, IN, Jefferson County, IN, Orange County, IN, Perry County, IN, Scott County, IN, Washington County, IN, Adair County, KY, Allen County, KY, Anderson County, KY, Barren County, KY, Bourbon County, KY, Boyle County, KY, Breckinridge 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, Hancock County, KY, Hardin County, KY, Harrison County, KY, Hart County, KY, Henry County, KY, Jefferson County, KY, Jessamine County, KY, Larue County, KY, Lincoln County, KY, Logan County, KY, Madison County, KY, Marion County, KY, Meade County, KY, Mercer County, KY, Metcalfe County, KY, Monroe County, KY, Nelson County, KY, Nicholas County, KY, Ohio County, KY, Oldham County, KY, Russell County, KY, Scott County, KY, Shelby County, KY, Simpson County, KY, Spencer County, KY, Taylor County, KY, Trimble County, KY, Warren County, KY, Washington County, KY, Woodford County, KY

The radar

The Louisville radar (KLVX), 43 km from the middle of the area, began a volume at 07:50 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, 7.8 hours before the alert went out and 239 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: 1743 J/kg
Mixed-layer CIN: -1 J/kg
Mixed-layer LCL: 710 m above ground
0-6 km bulk shear: 40 kt
0-1 km storm-relative helicity: 71 m²/s²
0-3 km storm-relative helicity: 154 m²/s²
Significant tornado parameter: 0.9
Supercell composite: 6.9

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 Jul 13, 2:24 AM CDT, 22 minutes earlier.

Area forecast discussion, Jul 13, 2:24 AM CDT, 22 minutes before

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Hazardous weather outlook, Jul 12, 7:48 PM CDT, 6 hours 58 minutes before

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In the hours before

Local storm report, Jul 12, 10:42 PM CDT, 4 hours 4 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
Jul 12, 7:39 PM CDT	Areal Flood Advisory	LMK	Anderson, Boyle, Fayette, Franklin, Garrard, Jessamine and 4 more	3 hr
Jul 12, 8:15 PM CDT	Severe Thunderstorm Warning	LMK	Anderson, Mercer	30 min
Jul 13, 12:18 PM CDT	Severe Thunderstorm Warning	LMK	Trimble	42 min
Jul 13, 12:39 PM CDT	Severe Thunderstorm Warning	LMK	Henry, Oldham, Trimble	41 min
Jul 13, 12:58 PM CDT	Flash Flood Warning	LMK	Jefferson, Oldham, Shelby	3 hr
Jul 13, 12:58 PM CDT	Severe Thunderstorm Warning	LMK	Trimble	22 min
Jul 13, 1:08 PM CDT	Areal Flood Advisory	LMK	Trimble	3 hr
Jul 13, 1:13 PM CDT	Severe Thunderstorm Warning	LMK	Henry, Jefferson, Oldham, Shelby, Trimble	47 min
Jul 13, 1:21 PM CDT	Severe Thunderstorm Warning	LMK	Bourbon, Harrison, Nicholas, Scott	34 min
Jul 13, 1:30 PM CDT	Flash Flood Warning	LMK	Harrison, Scott	3 hr
Jul 13, 1:35 PM CDT	Severe Thunderstorm Warning	LMK	Franklin, Scott, Shelby	30 min
Jul 13, 1:42 PM CDT	Severe Thunderstorm Warning	LMK	Bourbon, Fayette, Harrison, Nicholas, Scott	43 min
Jul 13, 1:51 PM CDT	Severe Thunderstorm Warning	LMK	Anderson, Bullitt, Franklin, Jefferson, Nelson, Shelby and 2 more	39 min
Jul 13, 1:56 PM CDT	Flash Flood Warning	LMK	Jefferson	3 hr
Jul 13, 2:02 PM CDT	Severe Thunderstorm Warning	LMK	Bourbon, Clark, Fayette, Jessamine, Madison, Nicholas and 2 more	38 min
Jul 13, 2:19 PM CDT	Areal Flood Advisory	LMK	Bourbon, Clark, Fayette, Nicholas	3 hr
Jul 13, 2:26 PM CDT	Severe Thunderstorm Warning	LMK	Anderson, Boyle, Bullitt, Clark, Fayette, Garrard and 8 more	59 min
Jul 13, 2:40 PM CDT	Special Weather Statement	LMK	Anderson, Bullitt, Jefferson, Spencer	30 min
Jul 13, 2:54 PM CDT	Flash Flood Warning	LMK	Bourbon, Clark, Fayette, Jessamine, Madison	3 hr
Jul 13, 3:24 PM CDT	Areal Flood Advisory	LMK	Bullitt, Hardin, Jefferson, Nelson, Washington	3 hr
Jul 13, 3:27 PM CDT	Special Weather Statement	LMK	Boyle, Bullitt, Marion, Mercer, Nelson, Spencer and 1 more	43 min
Jul 13, 3:30 PM CDT	Special Weather Statement	LMK	Boyle, Bullitt, Marion, Mercer, Nelson, Spencer and 1 more	40 min
Jul 13, 4:11 PM CDT	Severe Thunderstorm Warning	LMK	Marion, Nelson, Taylor	29 min
Jul 13, 4:28 PM CDT	Areal Flood Advisory	LMK	Adair, Boyle, Casey, Hardin, Larue, Lincoln and 5 more	3 hr
Jul 13, 4:31 PM CDT	Severe Thunderstorm Warning	LMK	Larue, Taylor	29 min
Jul 13, 4:55 PM CDT	Tornado Warning	LMK	Green, Taylor	30 min
Jul 13, 5:24 PM CDT	Severe Thunderstorm Warning	LMK	Adair, Green	31 min
Jul 13, 5:25 PM CDT	Areal Flood Advisory	LMK	Adair, Green, Taylor	3 hr
Jul 13, 5:36 PM CDT	Flash Flood Warning	LMK	Adair, Clinton, Cumberland, Green, Larue, Metcalfe and 2 more	3 hr
Jul 13, 5:53 PM CDT	Severe Thunderstorm Warning	LMK	Adair, Cumberland, Metcalfe	32 min
Jul 13, 6:25 PM CDT	Severe Thunderstorm Warning	LMK	Clinton, Cumberland	40 min
Jul 13, 6:31 PM CDT	Tornado Warning	LMK	Clinton, Cumberland	29 min
Jul 13, 6:59 PM CDT	Tornado Warning	LMK	Cumberland, Monroe	31 min
Jul 13, 1:25 PM CDT	Severe Thunderstorm Warning	LMK	Clark, Washington	30 min
Jul 13, 2:01 PM CDT	Severe Thunderstorm Warning	LMK	Clark, Floyd, Harrison, Washington	34 min
Jul 13, 2:58 PM CDT	Severe Thunderstorm Warning	LMK	Harrison	32 min
Jul 13, 3:20 PM CDT	Special Weather Statement	LMK	Harrison	30 min

Nearby

Flash Flood Watches in Kentucky, 2015 Flash Flood Watches in Indiana, 2015 Every flash flood watch in 2015

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.