Alert archive / Kentucky / Flash Flood Warnings in 2022

Flash Flood Warning 80, NWS Jackson, KY

August 20, 2022Whitley County, Kentucky

NWS Jackson, KY issued this flash flood warning at Aug 20, 2022, 12:10 AM EDT for Whitley County, Kentucky. It was in force for 3 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: Aug 20, 2022, 12:10 AM EDT (04:10 UTC)
Expired: Aug 20, 2022, 2:55 AM EDT
In force: 3 hr
Issued by: NWS Jackson, KY
Area: Storm-based polygon
Flood severity: None

County Whitley County, KY

The radar

The Knoxville radar (KMRX), 93 km from the middle of the area, began a volume at 04:12 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, 4.2 hours before the alert went out and 230 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: 822 J/kg
Mixed-layer CIN: -38 J/kg
Mixed-layer LCL: 1424 m above ground
0-6 km bulk shear: 21 kt
0-1 km storm-relative helicity: -13 m²/s²
0-3 km storm-relative helicity: 35 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 Aug 19, 11:35 PM EDT, 35 minutes earlier.

Area forecast discussion, Aug 19, 11:35 PM EDT, 35 minutes before

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Hazardous weather outlook, Aug 19, 11:10 PM EDT, 1 hour before

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In the hours before

Special weather statement, Aug 19, 6:56 PM EDT, 5 hours 14 minutes before

Special Weather Statement
National Weather Service JACKSON KY
656 PM EDT Fri Aug 19 2022

KYZ088-192345-
Harlan KY-
656 PM EDT Fri Aug 19 2022

...A strong thunderstorm will impact portions of northeastern Harlan
County through 745 PM EDT...

At 656 PM EDT, Doppler radar was tracking a strong thunderstorm over
Black Mountain, or 10 miles east of Harlan, moving northeast at 15
mph.

HAZARD...Winds in excess of 40 mph and pea size hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor damage to outdoor objects is
         possible.

This strong thunderstorm will be near...
  Highsplint, Shields, Nolansburg and Pine Mountain around 705 PM
  EDT.
  Clover-Darby around 710 PM EDT.
  Black Bottom, Lejunior, Louellen, Closplint, Totz and Holmes Mill
  around 715 PM EDT.

Other locations in the path of this storm include Diane, Hiram,
Clover Fork, Clover, Rock House, Lynch, Benham, Kingdom Come S.P.,
Clutts, Big Black Mountain, Cumberland and Blair.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

Torrential rainfall is also occurring with this storm and may lead to
localized flooding. Do not drive your vehicle through flooded
roadways.

Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

&&

LAT...LON 3686 8328 3701 8315 3699 8312 3698 8315
      3695 8315 3698 8307 3698 8302 3702 8294
      3698 8288 3695 8286 3690 8287 3687 8291
      3685 8301 3685 8307 3678 8313 3676 8313
TIME...MOT...LOC 2256Z 222DEG 15KT 3686 8314

MAX HAIL SIZE...0.25 IN
MAX WIND GUST...40 MPH

GREIF

Special weather statement, Aug 19, 7:33 PM EDT, 4 hours 37 minutes before

Special Weather Statement
National Weather Service JACKSON KY
733 PM EDT Fri Aug 19 2022

KYZ088-115-118-200015-
Perry KY-Harlan KY-Letcher KY-
733 PM EDT Fri Aug 19 2022

...A strong thunderstorm will impact portions of northeastern Harlan,
Letcher and southeastern Perry Counties through 815 PM EDT...

At 733 PM EDT, Doppler radar was tracking a strong thunderstorm over
Eolia, or 7 miles south of Whitesburg, moving north at 15 mph.

HAZARD...Winds in excess of 40 mph and pea size hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor damage to outdoor objects is
         possible.

This strong thunderstorm will be near...
  Eolia, Oven Fork and Day around 740 PM EDT.
  Dongola and Oscaloosa around 745 PM EDT.
  Ice and Trailer around 750 PM EDT.

Other locations in the path of this storm include Whitesburg, Ermine,
Marlowe, Whitco, Colly, Bellcraft, Crown, Van, Mayking, Winters,
Sergent, Southdown, Wright, Thornton, Millstone, Farraday, Jenkins,
Fleming-Neon, Whitaker, Tolliver Town, Neon Junction, Chip, Cromona,
Seco, Haymond and Fishpond Lake.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

Torrential rainfall is also occurring with this storm and may lead to
localized flooding. Do not drive your vehicle through flooded
roadways.

Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

&&

LAT...LON 3697 8318 3726 8282 3718 8259 3715 8263
      3712 8272 3708 8272 3707 8273 3705 8272
      3701 8278 3701 8283 3699 8284 3698 8287
      3693 8286 3692 8286
TIME...MOT...LOC 2333Z 201DEG 14KT 3701 8279

MAX HAIL SIZE...0.25 IN
MAX WIND GUST...40 MPH

GREIF

Special weather statement, Aug 19, 8:50 PM EDT, 3 hours 20 minutes before

Special Weather Statement
National Weather Service JACKSON KY
850 PM EDT Fri Aug 19 2022

KYZ086>088-116-117-200130-
Clay KY-Knox KY-Bell KY-Harlan KY-Leslie KY-
850 PM EDT Fri Aug 19 2022

...A strong thunderstorm will impact portions of west central Harlan,
northeastern Bell, eastern Knox, southwestern Leslie and southeastern
Clay Counties through 930 PM EDT...

At 849 PM EDT, Doppler radar was tracking a strong thunderstorm over
Stony Fork Junction, or 8 miles northeast of Pineville, moving north
at 10 mph.

HAZARD...Winds in excess of 40 mph and pea size hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor damage to outdoor objects is
         possible.

This strong thunderstorm will be near...
  Coldiron around 855 PM EDT.
  Tacky Town around 905 PM EDT.

Other locations in the path of this storm include Field, Erose,
Saylor, Beverly, Gardner, Sandy Fork, Skidmore, Queendale, Ashers
Fork, Spruce Pine and Warbranch.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

Torrential rainfall is also occurring with this storm and may lead to
localized flooding. Do not drive your vehicle through flooded
roadways.

Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

&&

LAT...LON 3672 8350 3677 8367 3703 8362 3698 8329
TIME...MOT...LOC 0049Z 192DEG 11KT 3683 8357

MAX HAIL SIZE...0.25 IN
MAX WIND GUST...40 MPH

GREIF

Special weather statement, Aug 19, 9:27 PM EDT, 2 hours 43 minutes before

Special Weather Statement
National Weather Service JACKSON KY
927 PM EDT Fri Aug 19 2022

KYZ086>088-200215-
Knox KY-Bell KY-Harlan KY-
927 PM EDT Fri Aug 19 2022

...A strong thunderstorm will impact portions of west central Harlan,
northeastern Bell and east central Knox Counties through 1015 PM
EDT...

At 927 PM EDT, Doppler radar was tracking a strong thunderstorm over
Callaway, or 8 miles east of Pineville. This storm was nearly
stationary.

HAZARD...Winds in excess of 40 mph and pea size hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor damage to outdoor objects is
         possible.

This strong thunderstorm will be near...
  Molus and Rella around 945 PM EDT.

Other locations in the path of this storm include Stony Fork
Junction, Coldiron, Wallins Creek, Tacky Town, Field and Mills.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

Torrential rainfall is also occurring with this storm and may lead to
localized flooding. Do not drive your vehicle through flooded
roadways.

Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

&&

LAT...LON 3674 8368 3693 8367 3691 8350 3690 8351
      3690 8348 3688 8346 3689 8345 3689 8340
      3671 8346
TIME...MOT...LOC 0127Z 191DEG 4KT 3680 8355

MAX HAIL SIZE...0.25 IN
MAX WIND GUST...40 MPH

GREIF

Local storm report, Aug 19, 10:43 PM EDT, 1 hour 27 minutes before

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Special weather statement, Aug 19, 11:53 PM EDT, 17 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 19, 8:50 PM EDT	Special Weather Statement	JKL	Harlan	40 min
Aug 19, 8:59 PM EDT	Areal Flood Advisory	JKL	Bell, Harlan, Leslie	5 hr
Aug 19, 9:14 PM EDT	Flash Flood Warning	JKL	Bell	4 hr
Aug 19, 9:27 PM EDT	Special Weather Statement	JKL	Bell	48 min
Aug 19, 11:49 PM EDT	Areal Flood Advisory	JKL	Whitley	3 hr
Aug 19, 11:53 PM EDT	Special Weather Statement	JKL	Whitley	52 min

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.