Alert archive / Kentucky / Severe Thunderstorm Warnings in 2019

Severe Thunderstorm Warning 79, NWS Jackson, KY

July 30, 2019Floyd County, Kentucky

NWS Jackson, KY issued this severe thunderstorm warning at Jul 30, 2019, 6:47 PM EDT for Floyd County, Kentucky. It was in force for 28 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: Jul 30, 2019, 6:47 PM EDT (22:47 UTC)
Expired: Jul 30, 2019, 7:15 PM EDT
In force: 28 min
Issued by: NWS Jackson, KY
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

County Floyd County, KY

The radar

The Jackson,KY radar (KJKL), 50 km from the middle of the area, began a volume at 22:47 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, 10.8 hours before the alert went out and 228 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: 275 J/kg
Mixed-layer CIN: -77 J/kg
Mixed-layer LCL: 738 m above ground
0-6 km bulk shear: 21 kt
0-1 km storm-relative helicity: 61 m²/s²
0-3 km storm-relative helicity: 75 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 Jul 30, 4:20 PM EDT, 2 hours 27 minutes earlier.

Area forecast discussion, Jul 30, 4:20 PM EDT, 2 hours 27 minutes before

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Hazardous weather outlook, Jul 30, 3:48 PM EDT, 2 hours 59 minutes before

Hazardous Weather Outlook
National Weather Service Jackson KY
348 PM EDT Tue Jul 30 2019

KYZ044-050>052-058>060-068-069-079-080-083>088-104-106>120-312300-
Fleming-Montgomery-Bath-Rowan-Estill-Powell-Menifee-Rockcastle-
Jackson-Pulaski-Laurel-Wayne-McCreary-Whitley-Knox-Bell-Harlan-
Elliott-Morgan-Johnson-Wolfe-Magoffin-Floyd-Lee-Breathitt-Knott-
Owsley-Perry-Clay-Leslie-Letcher-Martin-Pike-
Including the cities of Flemingsburg, Camargo, Jeffersonville,
Mount Sterling, Owingsville, Morehead, Irvine, Ravenna,
Clay City, Stanton, Frenchburg, Brodhead, Mount Vernon, McKee,
Annville, Burnside, Somerset, London, Monticello, Stearns,
Whitley City, Corbin, Williamsburg, Barbourville, Middlesboro,
Pineville, Cumberland, Harlan, Sandy Hook, West Liberty,
Paintsville, Campton, Salyersville, Prestonsburg, Wheelwright,
Beattyville, Jackson, Hindman, Pippa Passes, Booneville, Hazard,
Manchester, Hyden, Jenkins, Whitesburg, Inez, Coal Run,
Elkhorn City, Pikeville, and South Williamson
348 PM EDT Tue Jul 30 2019

This hazardous weather outlook is for portions of eastern Kentucky.

.DAY ONE...Tonight.

Thunderstorms will be possible through this evening. The
strongest storms will contain brief heavy rain and high winds.

Areas of dense fog will develop late tonight. There is a chance
the fog could become more widespread.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday.

Thunderstorms will be possible across eastern Kentucky on Wednesday,
mainly during the afternoon and early evening hours. Thunderstorms
will be possible again across portions of eastern Kentucky Thursday
through Monday, mainly during the afternoon and early evening
hours each day.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not anticipated.

KAS/DJ

In the hours before

Special weather statement, Jul 30, 4:23 PM EDT, 2 hours 24 minutes before

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Special weather statement, Jul 30, 5:37 PM EDT, 1 hour 10 minutes before

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Special weather statement, Jul 30, 6:04 PM EDT, 43 minutes before

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Special weather statement, Jul 30, 6:20 PM EDT, 27 minutes before

Special Weather Statement
National Weather Service JACKSON KY
620 PM EDT Tue Jul 30 2019

KYZ079-302245-
Pulaski-
620 PM EDT Tue Jul 30 2019

...A STRONG THUNDERSTORM WILL AFFECT SOUTH CENTRAL PULASKI COUNTY...

At 619 PM EDT, a strong thunderstorm was located over Tateville, or
just south of Somerset, moving northeast at 10 mph.

Winds in excess of 40 mph and half inch diameter hail are possible
with this storm.

Locations impacted include...
Burnside, Ruth, General Burnside S.P. and Tateville.

LAT...LON 3694 8459 3701 8463 3710 8451 3695 8442
TIME...MOT...LOC 2219Z 245DEG 7KT 3699 8457

HAL

Special weather statement, Jul 30, 6:40 PM EDT, 7 minutes before

Special Weather Statement
National Weather Service JACKSON KY
640 PM EDT Tue Jul 30 2019

KYZ079-302315-
Pulaski-
640 PM EDT Tue Jul 30 2019

...A STRONG THUNDERSTORM WILL AFFECT SOUTH CENTRAL PULASKI COUNTY...

At 639 PM EDT, a strong thunderstorm was located over Quinton, or 7
miles south of Somerset, moving east at 25 mph.

Winds in excess of 40 mph and penny size hail are possible with this
storm.

Locations impacted include...
Burnside, Quinton, Sloans Valley, Tateville, Alpine, General Burnside
S.P. and Bronston.

LAT...LON 3700 8470 3706 8449 3692 8447 3690 8450
      3692 8464 3698 8467 3698 8470
TIME...MOT...LOC 2239Z 261DEG 22KT 3697 8463

HAL

Special weather statement, Jul 30, 6:43 PM EDT, 4 minutes before

Special Weather Statement
National Weather Service JACKSON KY
643 PM EDT Tue Jul 30 2019

KYZ110-302315-
Floyd-
643 PM EDT Tue Jul 30 2019

...A STRONG THUNDERSTORM WILL AFFECT NORTHEASTERN FLOYD COUNTY...

At 643 PM EDT, a strong thunderstorm was located over Arkansas, or 8
miles south of Prestonsburg, moving east at 15 mph.

Wind gusts up to 50 mph and nickel size hail are possible with this
storm.

Locations impacted include...
Martin, Allen, Bammer, Justell, Harold, Beaver Junction, Arkansas,
Aluba, Dana, Betsy Layne, Allen City, Dwale, Ivel and Honaker.

LAT...LON 3751 8262 3754 8276 3761 8277 3766 8261
TIME...MOT...LOC 2243Z 260DEG 15KT 3758 8271

HAL

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 30, 2:38 PM EDT	Special Weather Statement	JKL	Menifee	37 min
Jul 30, 2:58 PM EDT	Severe Thunderstorm Warning	JKL	Elliott, Magoffin, Morgan	32 min
Jul 30, 3:51 PM EDT	Special Weather Statement	JKL	Estill	24 min
Jul 30, 4:23 PM EDT	Special Weather Statement	JKL	Wolfe	37 min
Jul 30, 4:36 PM EDT	Areal Flood Advisory	JKL	Montgomery, Powell	114 min
Jul 30, 5:37 PM EDT	Special Weather Statement	JKL	Perry	23 min
Jul 30, 6:04 PM EDT	Special Weather Statement	JKL	Knott	26 min
Jul 30, 6:20 PM EDT	Special Weather Statement	JKL	Pulaski	25 min
Jul 30, 6:40 PM EDT	Special Weather Statement	JKL	Pulaski	35 min
Jul 30, 6:43 PM EDT	Special Weather Statement	JKL	Floyd	32 min
Jul 30, 6:59 PM EDT	Areal Flood Advisory	JKL	Laurel, Pulaski, Wayne	2 hr
Jul 30, 7:10 PM EDT	Special Weather Statement	JKL	Martin	35 min
Jul 30, 7:22 PM EDT	Special Weather Statement	JKL	Wayne	23 min
Jul 30, 7:27 PM EDT	Special Weather Statement	JKL	Breathitt	33 min
Jul 30, 7:35 PM EDT	Flash Flood Warning	JKL	Jackson, Owsley	3 hr

Nearby

Severe Thunderstorm Warnings in Kentucky, 2019 Every severe thunderstorm warning in 2019

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.