Alert archive / Kentucky / Severe Thunderstorm Warnings in 2022

Severe Thunderstorm Warning 170, NWS Jackson, KY

August 5, 2022Harlan County, Letcher County, Kentucky

NWS Jackson, KY issued this severe thunderstorm warning at Aug 5, 2022, 5:40 PM EDT for Harlan County, Letcher County, Kentucky. It was in force for 35 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Aug 5, 2022, 5:40 PM EDT (21:40 UTC)
Expired: Aug 5, 2022, 6:15 PM EDT
In force: 35 min
Issued by: NWS Jackson, KY
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Harlan County, KY, Letcher County, KY

The radar

The Jackson,KY radar (KJKL), 71 km from the middle of the area, began a volume at 21:41 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, 9.7 hours before the alert went out and 280 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: 841 J/kg
Mixed-layer CIN: -51 J/kg
Mixed-layer LCL: 1054 m above ground
0-6 km bulk shear: 4 kt
0-1 km storm-relative helicity: -22 m²/s²
0-3 km storm-relative helicity: -33 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 severe thunderstorm 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 severe thunderstorm warning went out at Aug 5, 4:12 PM EDT, 1 hour 28 minutes earlier.

Area forecast discussion, Aug 5, 4:12 PM EDT, 1 hour 28 minutes before

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Hazardous weather outlook, Aug 5, 3:37 AM EDT, 14 hours 3 minutes before

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In the hours before

Special weather statement, Aug 5, 3:55 PM EDT, 1 hour 45 minutes before

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Special weather statement, Aug 5, 4:04 PM EDT, 1 hour 36 minutes before

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Special weather statement, Aug 5, 4:13 PM EDT, 1 hour 27 minutes before

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Special weather statement, Aug 5, 4:35 PM EDT, 1 hour 5 minutes before

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Special weather statement, Aug 5, 5:11 PM EDT, 29 minutes before

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Special weather statement, Aug 5, 5:37 PM EDT, 3 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
Aug 4, 8:16 PM EDT	Special Weather Statement	JKL	Breathitt	44 min
Aug 4, 9:00 PM EDT	Special Weather Statement	JKL	Magoffin	45 min
Aug 4, 9:18 PM EDT	Flood Watch	JKL	Bath, Bell, Breathitt, Clay, Elliott, Estill and 27 more	3 days
Aug 5, 5:09 AM EDT	Areal Flood Advisory	JKL	Pulaski, Wayne	2 hr
Aug 5, 6:16 AM EDT	Areal Flood Advisory	JKL	Pulaski, Rockcastle	119 min
Aug 5, 7:10 AM EDT	Areal Flood Advisory	JKL	Laurel, Pulaski, Rockcastle, Wayne	2 hr
Aug 5, 9:17 AM EDT	Areal Flood Advisory	JKL	Clay, Estill, Jackson, Laurel, Lee, Owsley and 2 more	3 hr
Aug 5, 11:53 AM EDT	Areal Flood Advisory	JKL	Estill, Jackson, Lee, Rockcastle	3 hr
Aug 5, 12:32 PM EDT	Areal Flood Advisory	JKL	Menifee, Montgomery, Powell	3 hr
Aug 5, 1:22 PM EDT	Areal Flood Advisory	JKL	Bath, Menifee	2 hr
Aug 5, 1:34 PM EDT	Special Weather Statement	JKL	Laurel	26 min
Aug 5, 2:13 PM EDT	Special Weather Statement	JKL	Owsley	17 min
Aug 5, 2:30 PM EDT	Special Weather Statement	JKL	Rockcastle	45 min
Aug 5, 2:32 PM EDT	Areal Flood Advisory	JKL	Jackson, Laurel, Owsley, Rockcastle	3 hr
Aug 5, 2:32 PM EDT	Severe Thunderstorm Warning	JKL	Jackson, Pulaski, Rockcastle	43 min
Aug 5, 2:36 PM EDT	Areal Flood Advisory	JKL	Pulaski, Wayne	3 hr
Aug 5, 2:53 PM EDT	Special Weather Statement	JKL	Knox, Whitley	37 min
Aug 5, 2:55 PM EDT	Areal Flood Advisory	JKL	Pulaski, Rockcastle	3 hr
Aug 5, 3:13 PM EDT	Areal Flood Advisory	JKL	Knox, Whitley	3 hr
Aug 5, 3:36 PM EDT	Special Weather Statement	JKL	Floyd	39 min
Aug 5, 3:55 PM EDT	Special Weather Statement	JKL	Floyd	50 min
Aug 5, 4:04 PM EDT	Special Weather Statement	JKL	Bell	41 min
Aug 5, 4:13 PM EDT	Special Weather Statement	JKL	Pike	47 min
Aug 5, 4:35 PM EDT	Special Weather Statement	JKL	Harlan	40 min
Aug 5, 4:43 PM EDT	Areal Flood Advisory	JKL	Floyd, Knott, Pike	3 hr
Aug 5, 5:11 PM EDT	Special Weather Statement	JKL	Harlan	49 min
Aug 5, 5:37 PM EDT	Special Weather Statement	JKL	Letcher	23 min
Aug 5, 5:54 PM EDT	Areal Flood Advisory	JKL	Harlan, Letcher	3 hr

Nearby

Severe Thunderstorm Warnings in Kentucky, 2022 Every severe thunderstorm 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.