Alert archive / Kentucky / Areal Flood Warnings in 2021

Areal Flood Warning 45, NWS Jackson, KY

July 30, 20216 counties in Kentucky

NWS Jackson, KY issued this areal flood warning at Jul 30, 2021, 4:21 AM EDT for 6 counties in 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: Jul 30, 2021, 4:21 AM EDT (08:21 UTC)
Expired: Jul 30, 2021, 7:15 AM EDT
In force: 3 hr
Issued by: NWS Jackson, KY
Area: Storm-based polygon
Flood severity: None

Counties Bath County, KY, Magoffin County, KY, Menifee County, KY, Montgomery County, KY, Morgan County, KY, Wolfe County, KY

The radar

The Jackson,KY radar (KJKL), 40 km from the middle of the area, began a volume at 08:24 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 00:00Z, 8.4 hours before the alert went out and 170 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: 2113 J/kg
Mixed-layer CIN: -24 J/kg
Mixed-layer LCL: 691 m above ground
0-6 km bulk shear: 38 kt
0-1 km storm-relative helicity: 137 m²/s²
0-3 km storm-relative helicity: 139 m²/s²
Significant tornado parameter: 1.7
Supercell composite: 9.2

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this areal 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 areal flood warning went out at Jul 30, 2:14 AM EDT, 2 hours 7 minutes earlier.

Area forecast discussion, Jul 30, 2:14 AM EDT, 2 hours 7 minutes before

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Hazardous weather outlook, Jul 30, 2:40 AM EDT, 1 hour 41 minutes before

Hazardous Weather Outlook
National Weather Service Jackson KY
240 AM EDT Fri Jul 30 2021

KYZ044-050>052-058>060-068-069-079-080-083>088-104-106>120-311100-
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
240 AM EDT Fri Jul 30 2021

This hazardous weather outlook is for portions of eastern Kentucky.

.DAY ONE...Overnight and today.

A complex of thunderstorms will continue to push south towards the
Highway 80 corridor and Hal Rogers Parkway. Gusty winds and
localized flash flooding will continue to be a threat through
dawn this morning.

Additionally, a few thunderstorms will be possible towards the
Tennessee border later today.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday.

Thunderstorms are possible at times from Saturday through
Wednesday, mainly during the afternoon and evening hours.

.SPOTTER INFORMATION STATEMENT...

Spotters are encouraged to report flooding through early this
morning.

GEOGERIAN

In the hours before

Local storm report, Jul 30, 2:57 AM EDT, 1 hour 24 minutes before

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Special weather statement, Jul 30, 3:04 AM EDT, 1 hour 17 minutes before

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Local storm report, Jul 30, 3:06 AM EDT, 1 hour 15 minutes before

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Special weather statement, Jul 30, 3:12 AM EDT, 1 hour 9 minutes before

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Special weather statement, Jul 30, 3:32 AM EDT, 49 minutes before

Special Weather Statement
National Weather Service JACKSON KY
332 AM EDT Fri Jul 30 2021

KYZ068-069-080-085>087-116-300815-
Jackson-Whitley-Clay-Knox-Bell-Rockcastle-Laurel-
332 AM EDT Fri Jul 30 2021

...AN AREA OF STRONG THUNDERSTORMS WILL AFFECT LAUREL...SOUTHWESTERN
BELL...KNOX...SOUTHWESTERN JACKSON...SOUTHEASTERN ROCKCASTLE...
EASTERN WHITLEY AND SOUTHWESTERN CLAY COUNTIES...

At 332 AM EDT, strong thunderstorms were clustered over East
Bernstadt, or near London, moving south at 55 mph.

Winds in excess of 40 mph are possible with this storm.

Locations impacted include...
London, Barbourville, Pineville, Middlesboro, Julip, Fariston, Swan
Lake, Fogertown, Horse Lick, Gausdale, Bush, Cranes Nest, Mershons,
Hazel Patch, Pine Hill, Dixie, Camp Wildcat, Byron, Avis and Siler.

Torrential rainfall is also occurring with this storm, and may cause
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 3659 8401 3710 8429 3711 8429 3712 8428
      3712 8430 3716 8429 3721 8435 3731 8441
      3739 8395 3661 8365 3659 8369
TIME...MOT...LOC 0732Z 338DEG 49KT 3720 8412

GREIF

Special weather statement, Jul 30, 3:56 AM EDT, 25 minutes before

Special Weather Statement
National Weather Service JACKSON KY
356 AM EDT Fri Jul 30 2021

KYZ068-079-080-084>086-300900-
McCreary-Whitley-Knox-Rockcastle-Laurel-Pulaski-
356 AM EDT Fri Jul 30 2021

...AN AREA OF STRONG THUNDERSTORMS WILL AFFECT SOUTHWESTERN LAUREL...
WESTERN KNOX...PULASKI...CENTRAL MCCREARY...SOUTHWESTERN ROCKCASTLE
AND WHITLEY COUNTIES...

At 355 AM EDT, strong thunderstorms were clustered over Grade, or 8
miles east of Somerset, moving southeast at 40 mph.

Wind gusts up to 50 mph are possible with this storm.

Locations impacted include...
Somerset, Williamsburg, Barbourville, Whitley City, Science Hill,
Burnside, Julip, Gum Sulphur, Swan Lake, Cumberland Falls S.P.,
Bandy, Spiro, Mount Victory, Gausdale, Krupp, Bark Camp, Avis,
Honeybee, Wilton and Alpine.

Torrential rainfall is also occurring with this storm, and may cause
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 3684 8459 3685 8457 3685 8459 3687 8458
      3689 8459 3688 8460 3698 8469 3717 8481
      3736 8456 3733 8451 3743 8446 3680 8378
      3677 8380 3666 8448
TIME...MOT...LOC 0755Z 336DEG 34KT 3708 8446

GREIF

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 29, 9:55 PM EDT	Special Weather Statement	JKL	Rowan	35 min
Jul 29, 10:03 PM EDT	Severe Thunderstorm Warning	JKL	Rowan	27 min
Jul 29, 10:25 PM EDT	Severe Thunderstorm Warning	JKL	Elliott, Rowan	35 min
Jul 29, 10:44 PM EDT	Severe Thunderstorm Warning	JKL	Elliott, Morgan, Rowan	31 min
Jul 29, 10:53 PM EDT	Areal Flood Advisory	JKL	Elliott, Fleming, Rowan	3 hr
Jul 29, 11:15 PM EDT	Special Weather Statement	JKL	Elliott, Johnson, Magoffin, Morgan, Wolfe	30 min
Jul 29, 11:23 PM EDT	Special Weather Statement	JKL	Bath, Fleming, Rowan	37 min
Jul 29, 11:32 PM EDT	Areal Flood Advisory	JKL	Bath, Elliott, Fleming, Morgan, Rowan	3 hr
Jul 29, 11:43 PM EDT	Flash Flood Warning	JKL	Bath, Fleming, Menifee, Morgan, Rowan	4 hr
Jul 30, 12:23 AM EDT	Special Weather Statement	JKL	Breathitt, Wolfe	52 min
Jul 30, 12:24 AM EDT	Flash Flood Warning	JKL	Bath, Magoffin, Menifee, Montgomery, Morgan, Wolfe	4 hr
Jul 30, 12:25 AM EDT	Special Weather Statement	JKL	Menifee, Montgomery, Wolfe	50 min
Jul 30, 12:36 AM EDT	Severe Thunderstorm Warning	JKL	Breathitt, Knott, Magoffin, Perry	39 min
Jul 30, 12:45 AM EDT	Special Weather Statement	JKL	Perry	45 min
Jul 30, 12:59 AM EDT	Flash Flood Warning	JKL	Breathitt, Magoffin	4 hr
Jul 30, 1:05 AM EDT	Special Weather Statement	JKL	Breathitt, Knott	40 min
Jul 30, 1:26 AM EDT	Special Weather Statement	JKL	Leslie, Perry	49 min
Jul 30, 1:30 AM EDT	Severe Thunderstorm Warning	JKL	Leslie, Perry	45 min
Jul 30, 1:33 AM EDT	Flash Flood Warning	JKL	Breathitt, Estill, Lee, Montgomery, Owsley, Perry and 2 more	4 hr
Jul 30, 1:37 AM EDT	Special Weather Statement	JKL	Montgomery, Powell	53 min
Jul 30, 1:55 AM EDT	Flash Flood Warning	JKL	Leslie, Perry	4 hr
Jul 30, 2:06 AM EDT	Special Weather Statement	JKL	Harlan	39 min
Jul 30, 2:08 AM EDT	Special Weather Statement	JKL	Estill, Jackson	52 min
Jul 30, 2:23 AM EDT	Special Weather Statement	JKL	Bell, Clay	52 min
Jul 30, 2:35 AM EDT	Flash Flood Warning	JKL	Clay, Estill, Jackson, Lee, Leslie, Owsley	4 hr
Jul 30, 2:41 AM EDT	Special Weather Statement	JKL	Jackson, Laurel, Rockcastle	49 min
Jul 30, 3:04 AM EDT	Special Weather Statement	JKL	Bell, Clay, Knox	41 min
Jul 30, 3:12 AM EDT	Special Weather Statement	JKL	Pulaski, Rockcastle	48 min
Jul 30, 3:23 AM EDT	Areal Flood Advisory	JKL	Clay, Jackson, Laurel, Rockcastle	4 hr
Jul 30, 3:30 AM EDT	Areal Flood Warning	JKL	Bath, Fleming, Menifee, Morgan, Rowan	6 hr
Jul 30, 3:32 AM EDT	Special Weather Statement	JKL	Knox, Laurel	43 min
Jul 30, 3:56 AM EDT	Special Weather Statement	JKL	Laurel, McCreary, Pulaski, Whitley	64 min
Jul 30, 4:03 AM EDT	Areal Flood Advisory	JKL	Laurel, Pulaski	4 hr
Jul 30, 4:11 AM EDT	Severe Thunderstorm Warning	JKL	Laurel, McCreary, Pulaski, Rockcastle, Whitley	49 min
Jul 30, 4:16 AM EDT	Tornado Warning	JKL	McCreary, Whitley	29 min
Jul 30, 4:18 AM EDT	Flash Flood Warning	JKL	Knox, Laurel, Pulaski, Rockcastle, Whitley	4 hr
Jul 30, 4:44 AM EDT	Special Weather Statement	JKL	McCreary, Pulaski, Wayne, Whitley	61 min
Jul 30, 4:54 AM EDT	Areal Flood Advisory	JKL	McCreary, Wayne, Whitley	3 hr
Jul 30, 4:54 AM EDT	Severe Thunderstorm Warning	JKL	Bell, McCreary, Whitley	51 min
Jul 30, 5:16 AM EDT	Areal Flood Warning	JKL	Breathitt, Estill, Lee, Montgomery, Owsley, Powell and 1 more	4 hr
Jul 30, 5:22 AM EDT	Special Weather Statement	JKL	McCreary, Wayne	38 min
Jul 30, 6:35 AM EDT	River Flood Advisory	JKL	Estill, Powell	24 hr
Jul 30, 7:14 AM EDT	Areal Flood Warning	JKL	Bath, Menifee, Montgomery, Morgan, Wolfe	4 hr
Jul 30, 7:58 AM EDT	Areal Flood Warning	JKL	Knox, Laurel, Pulaski, Rockcastle, Whitley	86 min

Nearby

Areal Flood Warnings in Kentucky, 2021 Every areal flood warning in 2021

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.