Alert archive / Kentucky / Special Weather Statements in 2021
Special Weather Statement, NWS Louisville, KY
NWS Louisville, KY issued this special weather statement at May 4, 2021, 5:20 AM CDT for 5 counties in Kentucky. It was in force for 40 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
- May 4, 2021, 5:20 AM CDT (10:20 UTC)
- Expired
- May 4, 2021, 6:00 AM CDT
- In force
- 40 min
- Issued by
- NWS Louisville, KY
Counties Allen County, KY, Barren County, KY, Logan County, KY, Simpson County, KY, Warren County, KY
The radar
The Nashville radar (KOHX), 79 km from the middle of the area, began a volume at 10:21 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, 10.3 hours before the alert went out and 92 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.
- Mixed-layer CAPE
- 2263 J/kg
- Mixed-layer CIN
- -5 J/kg
- Mixed-layer LCL
- 1050 m above ground
- 0-6 km bulk shear
- 30 kt
- 0-1 km storm-relative helicity
- 119 m²/s²
- 0-3 km storm-relative helicity
- 193 m²/s²
- Significant tornado parameter
- 1.3
- Supercell composite
- 7.6
The text
As transmitted.
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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 May 4, 4:27 AM CDT, 53 minutes earlier.
Area forecast discussion, May 4, 4:27 AM CDT, 53 minutes before
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Hazardous Weather Outlook...UPDATED National Weather Service Louisville KY 511 AM EDT Tue May 4 2021 INZ076>079-083-084-089>092-KYZ023>025-028>043-045>049-053>057-067- 050915- Orange-Washington-Scott-Jefferson-Dubois-Crawford-Perry-Harrison- Floyd-Clark-Hancock-Breckinridge-Meade-Hardin-Bullitt-Oldham-Trimble- Henry-Shelby-Franklin-Spencer-Anderson-Woodford-Fayette-Bourbon- Nicholas-Nelson-Mercer-Jessamine-Larue-Marion-Boyle-Garrard-Madison- Lincoln- Including the cities of Paoli, Salem, Scottsburg, Madison, Jasper, English, Tell City, Corydon, New Albany, Jeffersonville, Lewisport, Hawesville, Hardinsburg, Brandenburg, 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, and Stanford 511 AM EDT Tue May 4 2021 /411 AM CDT Tue May 4 2021/ This hazardous weather outlook is for portions of south central Indiana and Central Kentucky. .DAY ONE...Today and Tonight. Strong to severe thunderstorms will continue to be possible this morning through later tonight. The main threats with storms will be damaging winds and hail, but an isolated tornado and flash flood threat will be possible as well. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. No hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... Spotters are requested to report instances of severe weather to the National Weather Service this morning, and again possibly this evening. KYZ026-027-061>066-070>078-081-082-050915- Ohio-Grayson-Butler-Edmonson-Hart-Green-Taylor-Casey-Logan-Warren- Simpson-Allen-Barren-Monroe-Metcalfe-Adair-Russell-Cumberland- Clinton- Including the cities of Hartford, Leitchfield, Morgantown, Brownsville, Horse Cave, Greensburg, Campbellsville, Liberty, Russellville, Bowling Green, Franklin, Providence, Scottsville, Glasgow, Tompkinsville, Edmonton, Columbia, Jamestown, Burkesville, and Albany 511 AM EDT Tue May 4 2021 /411 AM CDT Tue May 4 2021/ ...FLASH FLOOD WATCH IN EFFECT THROUGH LATE TONIGHT... This hazardous weather outlook is for portions of south central Indiana and Central Kentucky. .DAY ONE...Today and Tonight. Strong to severe thunderstorms will continue to be possible this morning through later tonight. The main threats with storms will be damaging winds, flash flooding, and hail, but an isolated tornado will be possible as well. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. No hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... Spotters are requested to report instances of severe weather and flooding to the National Weather Service this morning, and again possibly this evening. BJS
In the hours before
Local storm report, May 4, 4:03 AM CDT, 1 hour 17 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LOUISVILLE KY
503 AM EDT TUE MAY 4 2021
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0335 AM HAIL 2 NW TOMPKINSVILLE 36.73N 85.72W
05/04/2021 E0.88 INCH MONROE KY PUBLIC
&&Special weather statement, May 4, 4:11 AM CDT, 1 hour 9 minutes before
Special Weather Statement
National Weather Service Louisville KY
411 AM CDT Tue May 4 2021
KYZ061-070-071-040945-
Warren-Logan-Butler-
411 AM CDT Tue May 4 2021
...A LINE OF STRONG THUNDERSTORMS WILL AFFECT NORTH CENTRAL LOGAN...
BUTLER AND NORTHWESTERN WARREN COUNTIES...
At 410 AM CDT, radar indicated strong thunderstorms from 9 miles
east of Dunmor to 9 miles northeast of Russellville. Movement was
northeast at 60 mph.
Winds in excess of 40 mph and nickel size hail are possible with
these storms.
Locations impacted include...
Morgantown, Anderson, Casey, Lee, Woodbury, Monford, Mining City,
Dimple, Aberdeen, and Leetown.
Torrential rainfall is also occurring with these storms, and may
cause localized flooding. Do not drive your vehicle through flooded
roadways.
LAT...LON 3732 8674 3740 8661 3736 8649 3726 8644
3690 8682 3715 8689
TIME...MOT...LOC 0910Z 214DEG 52KT 3713 8684 3695 8679
13Special weather statement, May 4, 4:24 AM CDT, 56 minutes before
Special Weather Statement
National Weather Service Louisville KY
424 AM CDT Tue May 4 2021
KYZ027-061>063-071-041000-
Hart-Grayson-Warren-Edmonson-Butler-
424 AM CDT Tue May 4 2021
...LINE OF STRONG THUNDERSTORMS NEAR MAMMOTH CAVE...
At 423 AM CDT, radar indicated strong thunderstorms from 10 miles
northeast of Brownsville to near Bowling Green. Movement was
northeast at 45 mph.
Winds in excess of 40 mph and penny size hail are possible with these
storms.
Locations impacted include...
Bowling Green, Brownsville, Plum Springs, Crestmoor, Mount Victor,
Smiths Grove, Park City, Bonnieville, Oakland, and Chalybeate.
Torrential rainfall is also occurring with these storms, and may
cause localized flooding. Do not drive your vehicle through flooded
roadways.
Frequent lightning is occurring. Seek a safe shelter inside a
building or vehicle.
LAT...LON 3694 8661 3723 8642 3745 8597 3744 8586
3716 8598 3717 8606 3706 8607 3706 8611
3702 8613
TIME...MOT...LOC 0923Z 234DEG 38KT 3732 8616 3703 8645
13Local storm report, May 4, 4:33 AM CDT, 47 minutes before
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</html>Special weather statement, May 4, 5:03 AM CDT, 17 minutes before
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</html>Special weather statement, May 4, 5:20 AM CDT, 0 minutes before
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</html>The office that day
Everything else NWS Louisville, KY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 4, 12:08 AM CDT | Special Weather Statement | LMK | Warren | 22 min |
| May 4, 12:12 AM CDT | Severe Thunderstorm Warning | LMK | Edmonson, Warren | 33 min |
| May 4, 12:26 AM CDT | Severe Thunderstorm Warning | LMK | Allen, Monroe | 34 min |
| May 4, 12:45 AM CDT | Special Weather Statement | LMK | Edmonson | 15 min |
| May 4, 1:32 AM CDT | Special Weather Statement | LMK | Barren, Warren | 43 min |
| May 4, 1:57 AM CDT | Special Weather Statement | LMK | Metcalfe | 33 min |
| May 4, 2:15 AM CDT | Special Weather Statement | LMK | Monroe | 30 min |
| May 4, 2:18 AM CDT | Special Weather Statement | LMK | Warren | 27 min |
| May 4, 2:43 AM CDT | Special Weather Statement | LMK | Barren | 32 min |
| May 4, 2:54 AM CDT | Special Weather Statement | LMK | Butler | 36 min |
| May 4, 3:13 AM CDT | Severe Thunderstorm Warning | LMK | Barren, Edmonson, Hart | 32 min |
| May 4, 3:22 AM CDT | Severe Thunderstorm Warning | LMK | Clinton, Cumberland | 23 min |
| May 4, 3:27 AM CDT | Flash Flood Warning | LMK | Barren | 3 hr |
| May 4, 3:42 AM CDT | Severe Thunderstorm Warning | LMK | Cumberland, Monroe | 33 min |
| May 4, 3:47 AM CDT | Special Weather Statement | LMK | Adair, Butler, Clinton, Cumberland, Edmonson, Green and 2 more | 28 min |
| May 4, 3:55 AM CDT | Flash Flood Watch | LMK | Adair, Allen, Barren, Butler, Casey, Clinton and 13 more | 22 hr |
| May 4, 4:06 AM CDT | Flash Flood Warning | LMK | Cumberland, Monroe | 3 hr |
| May 4, 4:11 AM CDT | Special Weather Statement | LMK | Butler | 34 min |
| May 4, 4:21 AM CDT | Flash Flood Warning | LMK | Butler | 5 hr |
| May 4, 4:24 AM CDT | Special Weather Statement | LMK | Edmonson, Warren | 36 min |
| May 4, 4:51 AM CDT | Flash Flood Warning | LMK | Edmonson, Hart | 3 hr |
| May 4, 5:03 AM CDT | Special Weather Statement | LMK | Green | 27 min |
| May 4, 5:21 AM CDT | Flash Flood Warning | LMK | Adair, Cumberland, Metcalfe | 3 hr |
| May 4, 5:49 AM CDT | Flash Flood Warning | LMK | Barren, Edmonson, Metcalfe, Warren | 3 hr |
| May 4, 5:54 AM CDT | Flash Flood Warning | LMK | Logan, Simpson, Warren | 3 hr |
| May 4, 5:58 AM CDT | Special Weather Statement | LMK | Allen, Simpson | 47 min |
| May 4, 6:10 AM CDT | Severe Thunderstorm Warning | LMK | Allen, Simpson | 20 min |
| May 4, 6:26 AM CDT | Special Weather Statement | LMK | Barren, Monroe | 19 min |
| May 4, 6:28 AM CDT | Areal Flood Advisory | LMK | Allen, Barren, Metcalfe, Monroe | 3 hr |
| May 4, 6:43 AM CDT | Special Weather Statement | LMK | Allen, Cumberland, Monroe | 47 min |
| May 4, 6:51 AM CDT | Flash Flood Warning | LMK | Adair, Barren, Clinton, Cumberland, Metcalfe, Monroe and 1 more | 6 hr |
| May 4, 8:46 AM CDT | Areal Flood Warning | LMK | Logan, Simpson, Warren | 3 hr |
| May 4, 8:50 AM CDT | Areal Flood Warning | LMK | Barren, Edmonson, Metcalfe, Warren | 4 hr |
| May 4, 10:12 AM CDT | River Flood Warning | LMK | Cumberland, Monroe | 11 hr |
| May 4, 1:19 PM CDT | River Flood Warning | LMK | Butler, Warren | 4 days |
| May 4, 1:19 PM CDT | River Flood Warning | LMK | Butler, Muhlenberg, Ohio | 5 days |
| May 4, 5:40 PM CDT | Special Weather Statement | LMK | Warren | 50 min |
| May 4, 5:48 PM CDT | Special Weather Statement | LMK | Spencer | 27 min |
| May 4, 6:13 PM CDT | Special Weather Statement | LMK | Simpson | 47 min |
| May 4, 6:26 PM CDT | Special Weather Statement | LMK | Edmonson | 49 min |
| May 4, 6:41 PM CDT | Special Weather Statement | LMK | Butler | 34 min |
| May 4, 6:56 PM CDT | Special Weather Statement | LMK | Butler | 34 min |
| May 4, 5:54 AM CDT | Special Weather Statement | LMK | Orange | 36 min |
Nearby
Special Weather Statements in Kentucky, 2021Every 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.