Alert archive / Kentucky / Severe Thunderstorm Warnings in 2026

Severe Thunderstorm Warning 152, NWS Jackson, KY

August 17, 2026Harlan County, Leslie County, Letcher County, Kentucky

NWS Jackson, KY issued this severe thunderstorm warning at Aug 17, 2026, 4:26 PM EDT for Harlan County, Leslie County, Letcher County, Kentucky. It was in force for 34 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 17, 2026, 4:26 PM EDT (20:26 UTC)
Expired: Aug 17, 2026, 5:00 PM EDT
In force: 34 min
Issued by: NWS Jackson, KY
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Harlan County, KY, Leslie County, KY, Letcher County, KY

The radar

The Jackson,KY radar (KJKL), 65 km from the middle of the area, began a volume at 20:29 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Aug 17, 2:35 PM EDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 12:00Z, 8.4 hours before the alert went out and 273 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: 690 J/kg
Mixed-layer CIN: -23 J/kg
Mixed-layer LCL: 576 m above ground
0-6 km bulk shear: 29 kt
0-1 km storm-relative helicity: 54 m²/s²
0-3 km storm-relative helicity: 60 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.6

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 17, 1:27 PM EDT, 2 hours 59 minutes earlier.

Area forecast discussion, Aug 17, 1:27 PM EDT, 2 hours 59 minutes before

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Hazardous weather outlook, Aug 17, 2:50 AM EDT, 13 hours 36 minutes before

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In the hours before

Local storm report, Aug 17, 2:35 PM EDT, 1 hour 51 minutes before

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Local storm report, Aug 17, 2:38 PM EDT, 1 hour 48 minutes before

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Local storm report, Aug 17, 2:39 PM EDT, 1 hour 47 minutes before

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Local storm report, Aug 17, 2:47 PM EDT, 1 hour 39 minutes before

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Local storm report, Aug 17, 3:44 PM EDT, 42 minutes before

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Special weather statement, Aug 17, 3:52 PM EDT, 34 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 16, 8:11 PM EDT	Severe Thunderstorm Warning	JKL	Floyd, Johnson, Martin, Pike	49 min
Aug 16, 8:16 PM EDT	Severe Thunderstorm Warning	JKL	Breathitt, Magoffin, Morgan, Wolfe	29 min
Aug 16, 8:24 PM EDT	Severe Thunderstorm Warning	JKL	Floyd, Johnson, Magoffin, Martin, Pike	36 min
Aug 16, 8:34 PM EDT	Areal Flood Advisory	JKL	Menifee, Morgan, Wolfe	29 min
Aug 16, 8:36 PM EDT	Severe Thunderstorm Warning Considerable damage threat	JKL	Breathitt, Lee, Magoffin, Morgan, Wolfe	24 min
Aug 16, 8:41 PM EDT	Areal Flood Advisory	JKL	Johnson, Martin	3 hr
Aug 16, 8:44 PM EDT	Special Weather Statement	JKL	Lee	31 min
Aug 16, 8:50 PM EDT	Areal Flood Advisory	JKL	Magoffin, Morgan, Wolfe	13 min
Aug 16, 8:50 PM EDT	Severe Thunderstorm Warning	JKL	Breathitt, Estill, Jackson, Lee, Owsley, Powell and 1 more	40 min
Aug 16, 8:57 PM EDT	Special Weather Statement	JKL	Breathitt, Floyd, Knott, Magoffin, Pike	33 min
Aug 16, 9:00 PM EDT	Severe Thunderstorm Warning	JKL	Estill, Jackson, Lee, Owsley, Rockcastle	30 min
Aug 16, 9:02 PM EDT	Flash Flood Warning	JKL	Magoffin, Menifee, Morgan, Powell, Wolfe	3 hr
Aug 16, 9:06 PM EDT	Flood Watch	JKL	Bath, Bell, Breathitt, Clay, Elliott, Estill and 23 more	26 hr
Aug 16, 9:11 PM EDT	Severe Thunderstorm Warning	JKL	Breathitt, Lee, Wolfe	34 min
Aug 16, 9:16 PM EDT	Special Weather Statement	JKL	Pulaski, Rockcastle	44 min
Aug 16, 9:18 PM EDT	Areal Flood Advisory	JKL	Powell, Wolfe	10 min
Aug 16, 9:20 PM EDT	Severe Thunderstorm Warning	JKL	Breathitt, Clay, Estill, Jackson, Laurel, Lee and 2 more	40 min
Aug 16, 9:26 PM EDT	Areal Flood Advisory	JKL	Breathitt, Floyd, Johnson, Knott, Magoffin, Morgan and 1 more	18 min
Aug 16, 9:28 PM EDT	Flash Flood Warning	JKL	Powell, Wolfe	3 hr
Aug 16, 9:31 PM EDT	Areal Flood Advisory	JKL	Powell	2 hr
Aug 16, 9:31 PM EDT	Special Weather Statement	JKL	Lee	14 min
Aug 16, 9:35 PM EDT	Areal Flood Advisory	JKL	Elliott, Magoffin, Morgan, Rowan	3 hr
Aug 16, 9:35 PM EDT	Severe Thunderstorm Warning	JKL	Breathitt, Lee, Magoffin, Perry, Wolfe	25 min
Aug 16, 9:43 PM EDT	Severe Thunderstorm Warning	JKL	Breathitt, Clay, Jackson, Knox, Laurel, Lee and 4 more	47 min
Aug 16, 9:44 PM EDT	Flash Flood Warning	JKL	Breathitt, Floyd, Johnson, Knott, Magoffin, Morgan and 1 more	3 hr
Aug 16, 9:50 PM EDT	Flash Flood Warning Considerable damage threat	JKL	Breathitt, Magoffin, Morgan, Wolfe	115 min
Aug 16, 9:55 PM EDT	Severe Thunderstorm Warning	JKL	Breathitt, Knott, Leslie, Perry	35 min
Aug 16, 9:56 PM EDT	Flash Flood Warning	JKL	Breathitt, Lee	3 hr
Aug 16, 10:02 PM EDT	Severe Thunderstorm Warning	JKL	Breathitt, Clay, Harlan, Knott, Leslie, Letcher and 2 more	43 min
Aug 16, 10:08 PM EDT	Areal Flood Advisory	JKL	Breathitt, Floyd, Knott	3 hr
Aug 16, 10:14 PM EDT	Areal Flood Advisory	JKL	Breathitt, Clay, Estill, Jackson, Lee, Owsley and 1 more	3 hr
Aug 16, 10:20 PM EDT	Areal Flood Advisory	JKL	Breathitt, Leslie, Perry	3 hr
Aug 16, 10:24 PM EDT	Severe Thunderstorm Warning	JKL	Floyd, Harlan, Knott, Leslie, Letcher, Perry and 1 more	51 min
Aug 16, 10:26 PM EDT	Flash Flood Warning	JKL	Breathitt, Knott, Perry	3 hr
Aug 16, 10:26 PM EDT	Special Weather Statement	JKL	Harlan, Knox, Laurel, Leslie	49 min
Aug 16, 10:39 PM EDT	Areal Flood Advisory	JKL	Floyd, Knott, Perry	2 hr
Aug 16, 10:53 PM EDT	Flash Flood Warning	JKL	Floyd, Knott	3 hr
Aug 16, 11:14 PM EDT	Special Weather Statement	JKL	Bell, Knox	31 min
Aug 16, 11:40 PM EDT	Special Weather Statement	JKL	Bell	20 min
Aug 16, 11:43 PM EDT	Areal Flood Warning	JKL	Wolfe	3 hr
Aug 16, 11:57 PM EDT	Areal Flood Advisory	JKL	Magoffin, Menifee, Morgan, Powell, Wolfe	63 min
Aug 17, 12:09 AM EDT	Areal Flood Advisory	JKL	Powell	2 hr
Aug 17, 12:36 AM EDT	Special Weather Statement	JKL	Jackson	24 min
Aug 17, 12:39 AM EDT	Areal Flood Advisory	JKL	Breathitt, Knott, Magoffin	66 min
Aug 17, 12:48 AM EDT	Areal Flood Advisory	JKL	Breathitt, Lee	27 min
Aug 17, 12:58 AM EDT	Special Weather Statement	JKL	Jackson, Owsley	32 min
Aug 17, 1:09 PM EDT	Special Weather Statement	JKL	Pike	36 min
Aug 17, 3:52 PM EDT	Special Weather Statement	JKL	Clay, Leslie	38 min
Aug 17, 4:55 PM EDT	Severe Thunderstorm Warning	JKL	Harlan, Letcher	23 min
Aug 17, 7:42 PM EDT	Special Weather Statement	JKL	Letcher	33 min

Nearby

Severe Thunderstorm Warnings in Kentucky, 2026 Every severe thunderstorm warning in 2026

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.