Alert archive / Kentucky / Flash Flood Watches in 2015

Flash Flood Watch 1, NWS Jackson, KY

April 2, 201530 counties in Kentucky

NWS Jackson, KY issued this flash flood watch at Apr 2, 2015, 1:04 PM EDT for 30 counties in Kentucky. It took effect at Apr 2, 2015, 8:00 PM EDT. It was in force for 26 hr.

The area

The counties it named.

The facts

Issued: Apr 2, 2015, 1:04 PM EDT (17:04 UTC)
In effect from: Apr 2, 2015, 8:00 PM EDT
Expired: Apr 3, 2015, 10:09 PM EDT
In force: 26 hr
Issued by: NWS Jackson, KY
Flood severity: None

All 30 counties

Bath County, KY, Breathitt County, KY, Clay County, KY, Elliott County, KY, Estill County, KY, Fleming County, KY, Floyd County, KY, Jackson County, KY, Johnson County, KY, Knott County, KY, Knox County, KY, Laurel County, KY, Lee County, KY, Leslie 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 17:06 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 12:00Z, 5.1 hours before the alert went out and 212 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: 2780 m above ground
0-6 km bulk shear: 33 kt
0-1 km storm-relative helicity: 224 m²/s²
0-3 km storm-relative helicity: 238 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 Jackson, KY wrote its last area forecast discussion before this flash flood watch went out at Apr 2, 10:13 AM EDT, 2 hours 51 minutes earlier.

Area forecast discussion, Apr 2, 10:13 AM EDT, 2 hours 51 minutes before

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Hazardous weather outlook, Apr 2, 4:37 AM EDT, 8 hours 27 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
Apr 2, 6:05 PM EDT	Special Weather Statement	JKL	Bath, Montgomery	40 min
Apr 2, 6:18 PM EDT	Severe Thunderstorm Warning	JKL	Bath, Fleming, Menifee, Montgomery	27 min
Apr 2, 6:26 PM EDT	Severe Thunderstorm Warning	JKL	Bath, Fleming, Rowan	49 min
Apr 2, 6:32 PM EDT	Special Weather Statement	JKL	Menifee	43 min
Apr 2, 6:43 PM EDT	Severe Thunderstorm Warning	JKL	Bath, Elliott, Fleming, Menifee, Morgan, Rowan	47 min
Apr 2, 7:23 PM EDT	Special Weather Statement	JKL	Pulaski, Wayne	52 min
Apr 2, 7:32 PM EDT	Severe Thunderstorm Warning	JKL	McCreary, Wayne	43 min
Apr 2, 7:51 PM EDT	Severe Thunderstorm Warning	JKL	Jackson, Knox, Laurel, McCreary, Pulaski, Rockcastle and 2 more	39 min

Nearby

Flash Flood Watches in Kentucky, 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.