Alert archive / Kentucky / Flash Flood Watches in 2016

Flash Flood Watch 6, NWS Jackson, KY

July 4, 201633 counties in Kentucky

NWS Jackson, KY issued this flash flood watch at Jul 4, 2016, 3:30 AM EDT for 33 counties in Kentucky. It was in force for 29 hr.

The area

The counties it named.

The facts

Issued: Jul 4, 2016, 3:30 AM EDT (07:30 UTC)
Expired: Jul 5, 2016, 8:00 AM EDT
In force: 29 hr
Issued by: NWS Jackson, KY
Flood severity: None

All 33 counties

Bath County, KY, Bell County, KY, Breathitt County, KY, Clay County, KY, Elliott County, KY, Estill County, KY, Fleming County, KY, Floyd County, KY, Harlan County, KY, Jackson County, KY, Johnson County, KY, Knott County, KY, Knox County, KY, Laurel County, KY, Lee County, KY, Leslie County, KY, Letcher County, KY, Magoffin County, KY, Martin County, KY, McCreary County, KY, Menifee County, KY, Montgomery County, KY, Morgan County, KY, Owsley County, KY, Perry County, KY, Pike County, KY, Powell County, KY, Pulaski County, KY, Rockcastle County, KY, Rowan County, KY, Wayne County, KY, Whitley County, KY, Wolfe County, KY

The radar

The Jackson,KY radar (KJKL), 26 km from the middle of the area, began a volume at 07:30 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 00:00Z, 7.5 hours before the alert went out and 309 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: 1123 J/kg
Mixed-layer CIN: -17 J/kg
Mixed-layer LCL: 1351 m above ground
0-6 km bulk shear: 41 kt
0-1 km storm-relative helicity: 73 m²/s²
0-3 km storm-relative helicity: 165 m²/s²
Significant tornado parameter: 0.3
Supercell composite: 6.5

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 Jackson, KY wrote its last area forecast discussion before this flash flood watch went out at Jul 4, 3:16 AM EDT, 14 minutes earlier.

Area forecast discussion, Jul 4, 3:16 AM EDT, 14 minutes before

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Hazardous weather outlook, Jul 3, 11:04 PM EDT, 4 hours 26 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 4, 1:21 PM EDT	Special Weather Statement	JKL	Bath, Montgomery	39 min
Jul 4, 1:57 PM EDT	Severe Thunderstorm Warning	JKL	Breathitt, Floyd, Johnson, Magoffin	33 min
Jul 4, 2:02 PM EDT	Special Weather Statement	JKL	Bath, Menifee, Rowan	43 min
Jul 4, 2:44 PM EDT	Special Weather Statement	JKL	Elliott, Morgan	46 min
Jul 4, 3:11 PM EDT	Areal Flood Advisory	JKL	Elliott, Menifee, Morgan	2 hr
Jul 4, 4:06 PM EDT	Special Weather Statement	JKL	Pulaski, Rockcastle, Wayne	54 min
Jul 4, 4:16 PM EDT	Severe Thunderstorm Warning	JKL	Pulaski, Rockcastle	29 min
Jul 4, 4:46 PM EDT	Severe Thunderstorm Warning	JKL	Clay, Estill, Jackson, Laurel, Lee, Owsley and 1 more	29 min
Jul 4, 4:47 PM EDT	Special Weather Statement	JKL	Pulaski, Wayne	43 min
Jul 4, 4:56 PM EDT	Severe Thunderstorm Warning	JKL	Laurel, McCreary, Pulaski, Wayne	34 min
Jul 4, 5:16 PM EDT	Severe Thunderstorm Warning	JKL	Breathitt, Clay, Jackson, Owsley, Perry	29 min
Jul 4, 5:26 PM EDT	Special Weather Statement	JKL	Clay, Knox, McCreary, Whitley	34 min
Jul 4, 5:48 PM EDT	Special Weather Statement	JKL	Breathitt, Magoffin, Perry	27 min
Jul 4, 6:11 PM EDT	Severe Thunderstorm Warning	JKL	Breathitt, Floyd, Knott, Magoffin, Perry	34 min
Jul 4, 6:21 PM EDT	Special Weather Statement	JKL	Bell, Harlan, Knox, Leslie, Letcher, Perry	54 min
Jul 4, 6:34 PM EDT	Tornado Warning	JKL	Floyd	26 min
Jul 4, 6:40 PM EDT	Severe Thunderstorm Warning	JKL	Floyd, Pike	50 min

Nearby

Flash Flood Watches in Kentucky, 2016 Every flash flood watch 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.