Alert archive / Kentucky / Special Weather Statements in 2021

Special Weather Statement, NWS Louisville, KY

July 30, 2021Clark County, Kentucky

NWS Louisville, KY issued this special weather statement at Jul 30, 2021, 1:29 AM EDT for Clark County, Kentucky. It was in force for 31 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Jul 30, 2021, 1:29 AM EDT (05:29 UTC)
Expired: Jul 30, 2021, 2:00 AM EDT
In force: 31 min
Issued by: NWS Louisville, KY

County Clark County, KY

The radar

The Jackson,KY radar (KJKL), 75 km from the middle of the area, began a volume at 05:32 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, 5.5 hours before the alert went out and 173 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

The text

As transmitted.

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What forecasters said that day

The local office's own words before this special weather statement went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Louisville, KY wrote its last area forecast discussion before this special weather statement went out at Jul 30, 12:56 AM EDT, 33 minutes earlier.

Area forecast discussion, Jul 30, 12:56 AM EDT, 33 minutes before

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Hazardous weather outlook, Jul 29, 11:41 PM EDT, 1 hour 48 minutes before

Hazardous Weather Outlook
National Weather Service Louisville KY
1141 PM EDT Thu Jul 29 2021

INZ076>079-083-084-089>092-KYZ023>043-045>049-053>057-061>067-
070>078-081-082-310345-
Orange-Washington-Scott-Jefferson-Dubois-Crawford-Perry-Harrison-
Floyd-Clark-Hancock-Breckinridge-Meade-Ohio-Grayson-Hardin-Bullitt-
Oldham-Trimble-Henry-Shelby-Franklin-Spencer-Anderson-Woodford-
Fayette-Bourbon-Nicholas-Nelson-Mercer-Jessamine-Larue-Marion-Boyle-
Garrard-Madison-Butler-Edmonson-Hart-Green-Taylor-Casey-Lincoln-
Logan-Warren-Simpson-Allen-Barren-Monroe-Metcalfe-Adair-Russell-
Cumberland-Clinton-
Including the cities of Paoli, Salem, Scottsburg, Madison, Jasper,
English, Tell City, Corydon, New Albany, Jeffersonville, Lewisport,
Hawesville, Hardinsburg, Brandenburg, Hartford, Leitchfield,
Elizabethtown, Shepherdsville, Louisville, La Grange, Bedford,
Milton, New Castle, Shelbyville, Frankfort, Georgetown, Cynthiana,
Taylorsville, Lawrenceburg, Versailles, Lexington, Paris, Carlisle,
Bardstown, Springfield, Harrodsburg, Nicholasville, Winchester,
Hodgenville, Lebanon, Danville, Lancaster, Richmond, Morgantown,
Brownsville, Horse Cave, Greensburg, Campbellsville, Liberty,
Stanford, Russellville, Bowling Green, Franklin, Providence,
Scottsville, Glasgow, Tompkinsville, Edmonton, Columbia, Jamestown,
Burkesville, and Albany
1141 PM EDT Thu Jul 29 2021 /1041 PM CDT Thu Jul 29 2021/

This hazardous weather outlook is for portions of south central
Indiana and Central Kentucky.

.DAY ONE...Tonight.

Scattered thunderstorms will move through the area tonight with a
few strong to severe storms capable of producing locally damaging
winds and brief torrential rainfall.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be needed tonight.

&&

More information, along with other weather, hydrological and
climate information can be found at weather.gov/louisville.

13

In the hours before

Special weather statement, Jul 29, 11:17 PM EDT, 2 hours 12 minutes before

Special Weather Statement
National Weather Service Louisville KY
1117 PM EDT Thu Jul 29 2021

INZ084-089-KYZ025-300345-
Crawford-Perry-Meade-
1117 PM EDT Thu Jul 29 2021

...A STRONG THUNDERSTORM WILL AFFECT CENTRAL CRAWFORD...NORTHEASTERN
PERRY AND NORTHWESTERN MEADE COUNTIES...

At 1117 PM EDT/1017 PM CDT/, a strong thunderstorm was located 7
miles southwest of English, moving southeast at 25 mph.

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

Locations impacted include...
Carefree Town, Mount Pleasant, Leavenworth, Alton, Roberta, Oriole,
Celina, Fredonia, Beechwood and Magnet.

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.

To report severe weather, contact your nearest law enforcement
agency. They can relay your report to the National Weather Service
office in Louisville.

LAT...LON 3824 8668 3835 8659 3825 8631 3806 8647
TIME...MOT...LOC 0317Z 308DEG 24KT 3828 8658

EBW

Special weather statement, Jul 29, 11:46 PM EDT, 1 hour 43 minutes before

Special Weather Statement
National Weather Service Louisville KY
1146 PM EDT Thu Jul 29 2021

INZ084-089-090-KYZ024-025-300415-
Crawford-Perry-Harrison-Meade-Breckinridge-
1146 PM EDT Thu Jul 29 2021

...A STRONG THUNDERSTORM WILL AFFECT SOUTHWESTERN HARRISON...
SOUTHEASTERN CRAWFORD...NORTHEASTERN PERRY...NORTHWESTERN MEADE AND
NORTH CENTRAL BRECKINRIDGE COUNTIES...

At 1145 PM EDT/1045 PM CDT/, a strong thunderstorm was located near
Carefree Town, moving southeast at 20 mph.

Winds in excess of 30 mph are possible with this storm.

Locations impacted include...
Mount Pleasant, Leopold, Leavenworth, Alton, New Amsterdam, Roberta,
Beechwood, Gerald, Central and Andyville.

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 3820 8656 3823 8630 3808 8601 3796 8665
TIME...MOT...LOC 0345Z 326DEG 16KT 3816 8636

KDW

Special weather statement, Jul 29, 11:55 PM EDT, 1 hour 34 minutes before

Special Weather Statement
National Weather Service Louisville KY
1155 PM EDT Thu Jul 29 2021

KYZ037-042-043-300430-
Bourbon-Nicholas-Harrison-
1155 PM EDT Thu Jul 29 2021

...A STRONG THUNDERSTORM WILL AFFECT NORTHEASTERN BOURBON...NICHOLAS
AND EAST CENTRAL HARRISON COUNTIES...

At 1155 PM EDT, a strong thunderstorm was located near Carlisle,
moving southeast at 30 mph.

Winds in excess of 30 mph are possible with this storm.

Locations impacted include...
Carlisle, Millersburg, Jackstown, Ellisville, Pleasant Valley,
Headquarters, Moorefield, Myers, Barefoot and Plum.

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 3830 8385 3816 8402 3840 8423 3849 8417
      3849 8416 3850 8416 3848 8415 3848 8413
      3846 8410 3843 8400 3842 8400 3844 8397
      3842 8395 3836 8392 3836 8389 3835 8390
      3836 8387 3833 8386 3834 8384
TIME...MOT...LOC 0355Z 322DEG 28KT 3830 8396

KDW

Special weather statement, Jul 30, 12:37 AM EDT, 52 minutes before

Special Weather Statement
National Weather Service Louisville KY
1237 AM EDT Fri Jul 30 2021

INZ076-084-300500-
Crawford-Orange-
1237 AM EDT Fri Jul 30 2021

...A STRONG THUNDERSTORM WILL AFFECT NORTHEASTERN CRAWFORD AND SOUTH
CENTRAL ORANGE COUNTIES...

At 1237 AM EDT, a strong thunderstorm was located near English,
moving southeast at 20 mph.

Winds in excess of 30 mph and pea size hail are possible with this
storm.

Locations impacted include...
English, Marengo, Ethel, Grantsburg, Temple and Fargo.

LAT...LON 3843 8661 3846 8656 3835 8631 3825 8649
TIME...MOT...LOC 0437Z 327DEG 19KT 3840 8651

KDW

Local storm report, Jul 30, 12:51 AM EDT, 38 minutes before

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Special weather statement, Jul 30, 1:29 AM EDT, 0 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 29, 11:46 PM EDT	Special Weather Statement	LMK	Meade	29 min
Jul 29, 11:55 PM EDT	Special Weather Statement	LMK	Nicholas	35 min
Jul 29, 11:57 PM EDT	Areal Flood Advisory	LMK	Harrison, Nicholas	18 min
Jul 30, 12:15 AM EDT	Flash Flood Warning	LMK	Harrison, Nicholas	3 hr
Jul 30, 1:33 AM EDT	Areal Flood Advisory	LMK	Bourbon, Clark	12 min
Jul 30, 1:35 AM EDT	Special Weather Statement	LMK	Meade	25 min
Jul 30, 1:45 AM EDT	Flash Flood Warning	LMK	Bourbon, Clark	2 hr
Jul 30, 2:57 AM EDT	Areal Flood Advisory	LMK	Garrard, Madison	2 hr
Jul 30, 3:53 AM EDT	Areal Flood Advisory	LMK	Boyle, Lincoln	112 min
Jul 30, 3:57 AM EDT	Special Weather Statement	LMK	Lincoln	18 min
Jul 30, 4:02 AM EDT	Special Weather Statement	LMK	Taylor	28 min
Jul 30, 4:24 AM EDT	Special Weather Statement	LMK	Adair	21 min
Jul 30, 4:43 AM EDT	Special Weather Statement	LMK	Russell	17 min
Jul 30, 4:46 AM EDT	Special Weather Statement	LMK	Green	29 min
Jul 30, 5:17 AM EDT	Special Weather Statement	LMK	Adair, Clinton	28 min
Jul 30, 5:54 AM EDT	Areal Flood Advisory	LMK	Lincoln	2 hr
Jul 30, 5:57 AM EDT	Areal Flood Advisory	LMK	Clinton	2 hr
Jul 30, 6:53 AM EDT	Areal Flood Warning	LMK	Bourbon, Nicholas	3 hr
Jul 29, 10:17 PM EDT	Special Weather Statement	LMK	Crawford	28 min
Jul 29, 10:47 PM EDT	Special Weather Statement	LMK	Crawford	28 min
Jul 29, 11:14 PM EDT	Special Weather Statement	LMK	Harrison	31 min
Jul 29, 11:17 PM EDT	Special Weather Statement	LMK	Crawford	28 min
Jul 30, 12:37 AM EDT	Special Weather Statement	LMK	Crawford	23 min

Nearby

Special Weather Statements in Kentucky, 2021 Every special weather statement 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.