Alert archive / Kentucky / Flash Flood Warnings in 2022

Flash Flood Warning 55, NWS Jackson, KY

July 31, 2022Bell County, Whitley County, Kentucky

NWS Jackson, KY issued this flash flood warning at Jul 31, 2022, 9:20 PM EDT for Bell County, Whitley County, Kentucky. It was in force for 2 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Jul 31, 2022, 9:20 PM EDT (01:20 UTC)
Expired: Jul 31, 2022, 11:38 PM EDT
In force: 2 hr
Issued by: NWS Jackson, KY
Area: Storm-based polygon
Flood severity: None

Counties Bell County, KY, Whitley County, KY

The radar

The Knoxville radar (KMRX), 79 km from the middle of the area, began a volume at 01:20 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, 1.3 hours before the alert went out and 250 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: 946 J/kg
Mixed-layer CIN: -5 J/kg
Mixed-layer LCL: 960 m above ground
0-6 km bulk shear: 18 kt
0-1 km storm-relative helicity: 35 m²/s²
0-3 km storm-relative helicity: 78 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 warning 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 warning went out at Jul 31, 8:08 PM EDT, 1 hour 12 minutes earlier.

Area forecast discussion, Jul 31, 8:08 PM EDT, 1 hour 12 minutes before

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Hazardous weather outlook, Jul 31, 4:55 PM EDT, 4 hours 25 minutes before

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In the hours before

Local storm report, Jul 31, 8:02 PM EDT, 1 hour 18 minutes before

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Local storm report, Jul 31, 8:03 PM EDT, 1 hour 17 minutes before

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Local storm report, Jul 31, 8:05 PM EDT, 1 hour 15 minutes before

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Local storm report, Jul 31, 8:06 PM EDT, 1 hour 14 minutes before

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Local storm report, Jul 31, 8:19 PM EDT, 1 hour 1 minute before

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Local storm report, Jul 31, 8:30 PM EDT, 50 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 31, 8:02 PM EDT	Flash Flood Warning	JKL	Bell, Knox	118 min
Jul 31, 8:41 PM EDT	Flash Flood Warning	JKL	Whitley	3 hr
Jul 31, 9:40 PM EDT	Areal Flood Advisory	JKL	Clay, Knox, Leslie	2 hr
Jul 31, 10:30 PM EDT	Areal Flood Advisory	JKL	Leslie, Perry	4 hr
Aug 1, 1:04 AM EDT	Areal Flood Advisory	JKL	Breathitt, Magoffin	3 hr
Aug 1, 1:29 AM EDT	River Flood Advisory	JKL	Estill	8 hr
Aug 1, 1:57 AM EDT	Areal Flood Advisory	JKL	Floyd, Magoffin, Martin, Pike	3 hr
Aug 1, 1:58 AM EDT	Areal Flood Advisory	JKL	Knott, Letcher, Perry, Pike	5 hr
Aug 1, 4:10 AM EDT	Areal Flood Advisory	JKL	Clay, Knox, Leslie, Perry	3 hr
Aug 1, 4:14 AM EDT	Areal Flood Advisory	JKL	Jackson, Laurel, Pulaski, Rockcastle	3 hr
Aug 1, 5:38 AM EDT	Areal Flood Advisory	JKL	Breathitt, Clay, Jackson, Owsley, Perry	3 hr
Aug 1, 6:04 AM EDT	Areal Flood Advisory	JKL	Breathitt, Floyd, Knott, Letcher, Perry	3 hr
Aug 1, 6:48 AM EDT	Areal Flood Advisory	JKL	Floyd, Pike	3 hr
Aug 1, 7:20 AM EDT	Areal Flood Advisory	JKL	Floyd, Magoffin, Pike	3 hr
Aug 1, 7:27 AM EDT	Areal Flood Advisory	JKL	Estill, Powell	3 hr
Aug 1, 7:48 AM EDT	Flash Flood Warning	JKL	Floyd, Knott	108 min
Aug 1, 8:07 AM EDT	Flood Watch	JKL	Bath, Breathitt, Clay, Elliott, Estill, Fleming and 18 more	4 hr
Aug 1, 8:26 AM EDT	Flash Flood Warning	JKL	Breathitt, Floyd, Johnson, Magoffin, Martin, Pike	117 min
Aug 1, 8:32 AM EDT	Areal Flood Advisory	JKL	Bath, Fleming, Menifee, Montgomery, Morgan, Rowan	114 min
Aug 1, 9:36 AM EDT	Areal Flood Warning	JKL	Floyd, Knott	114 min
Aug 1, 9:49 AM EDT	River Flood Advisory	JKL	Letcher	6 hr
Aug 1, 10:23 AM EDT	Areal Flood Warning	JKL	Floyd, Johnson, Magoffin, Martin, Pike	3 hr
Aug 1, 11:13 AM EDT	River Flood Advisory	JKL	Floyd	28 hr
Aug 1, 11:46 AM EDT	Flood Watch	JKL	Bath, Bell, Breathitt, Clay, Elliott, Estill and 27 more	20 hr

Nearby

Flash Flood Warnings in Kentucky, 2022 Every flash flood warning in 2022

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.