Alert archive / Kentucky / Severe Thunderstorm Warnings in 2020
Severe Thunderstorm Warning 122, NWS Louisville, KY
NWS Louisville, KY issued this severe thunderstorm warning at Jul 5, 2020, 4:05 PM CDT for 5 counties in Kentucky. It was in force for 25 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 5, 2020, 4:05 PM CDT (21:05 UTC)
- Expired
- Jul 5, 2020, 4:30 PM CDT
- In force
- 25 min
- Issued by
- NWS Louisville, KY
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 70.0 mph
Counties Green County, KY, Larue County, KY, Marion County, KY, Nelson County, KY, Taylor County, KY
The radar
The Louisville radar (KLVX), 67 km from the middle of the area, began a volume at 21:08 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 12:00Z, 9.1 hours before the alert went out and 184 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
- 797 J/kg
- Mixed-layer CIN
- -107 J/kg
- Mixed-layer LCL
- 1278 m above ground
- 0-6 km bulk shear
- 6 kt
- 0-1 km storm-relative helicity
- 31 m²/s²
- 0-3 km storm-relative helicity
- 37 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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 Louisville, KY wrote its last area forecast discussion before this severe thunderstorm warning went out at Jul 5, 2:07 PM CDT, 1 hour 58 minutes earlier.
Area forecast discussion, Jul 5, 2:07 PM CDT, 1 hour 58 minutes before
Area Forecast Discussion National Weather Service Louisville KY 307 PM EDT Sun Jul 5 2020 .Short Term...(This evening through Monday) Issued at 255 PM EDT Sun Jul 5 2020 Another hot and humid day across the region as temperatures have warmed into the lower 90s with dewpoints in the upper 60s to lower 70s. Scattered showers and storms have been popping up over southern KY, where deeper moisture and PWATs in the 1.7-2.0 inch range are located. Within these storms, frequent lightning and heavy rainfall are being observed. Scattered convection will continue through the early evening before diminishing towards sunset. Expect another mild night tonight, with overnight temperatures remaining in the lower 70s. Tomorrow will then feature much of the same, with high temperatures warming into the upper 80s to lower 90s. Afternoon convection will be possible across a greater area as compared to today as deeper moisture spreads northward and the higher PWATs push north of the Ohio River. The environment will once again be characterized by moderate instability (SBCAPE of 2000-3000 J/kg) and weak shear. Main threats with storms will continue to be the potential for torrential rainfall, frequent lightning, and gusty winds. && .Long Term...(Monday night through Sunday) Issued at 245 PM EDT Sun Jul 5 2020 A stagnant summer weather pattern will prevail most of the week. With a tropical air mass and the westerlies remaining well to our north, there will be plenty of moisture and instability, but weak capping and next to no shear. We'll see hot and increasingly humid days, very warm and muggy nights, and scattered thunderstorms developing each afternoon. Weak flow will provide no organization for the storms, but they will be slow movers capable of producing very heavy rainfall and localized flooding. The pattern does become a little more amplified on Friday, with a trof digging into the eastern CONUS and ridging over the Rockies, so that will be our best chance for widespread precip. Will carry a likely POP on Friday and continue at least a chance through the nighttime hours. Ridging will start to win out over the weekend, allowing for a downward trend in POPs Sat into Sun, but can't take them out completely given NW flow aloft. && .Aviation...(18Z TAF Issuance) Issued at 130 PM EDT Sun Jul 5 2020 Mostly sunny skies being observed across much of the region this afternoon, with some storms beginning to pop-up along the KY/TN border. Generally expect storms to stay across south-central KY, so have only included mention of TS at BWG through the afternoon and evening hours, with coverage expected to decrease towards sunset. Winds will remain light throughout the period, with potential for fog again overnight. Scattered showers and storms will return Monday afternoon. && .LMK WATCHES/WARNINGS/ADVISORIES... IN...None. KY...None. && Short Term...JML Long Term...RAS Aviation...JML
Hazardous weather outlook, Jul 5, 2:26 PM CDT, 1 hour 39 minutes before
Hazardous Weather Outlook National Weather Service Louisville KY 326 PM EDT Sun Jul 5 2020 INZ076>079-083-084-089>092-KYZ023>043-045>049-053>057-061>067- 070>078-081-082-061930- 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 326 PM EDT Sun Jul 5 2020 /226 PM CDT Sun Jul 5 2020/ This hazardous weather outlook is for portions of south central Indiana and Central Kentucky. .DAY ONE...Tonight. Scattered thunderstorms are possible through this evening, mainly south of the parkways. Main threats are heavy rainfall and frequent lightning, with potential for gusty winds in the strongest storms. .DAYS TWO THROUGH SEVEN...Monday through Saturday. Scattered afternoon thunderstorms will be possible each day. Main hazards will be isolated heavy rainfall, locally gusty winds, and frequent lightning. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. JML/RAS
In the hours before
Special weather statement, Jul 5, 3:36 PM CDT, 29 minutes before
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</html>Local storm report, Jul 5, 3:53 PM CDT, 12 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 |
|---|---|---|---|---|
| Jul 5, 1:04 PM CDT | Special Weather Statement | LMK | Cumberland | 26 min |
| Jul 5, 1:44 PM CDT | Special Weather Statement | LMK | Adair | 31 min |
| Jul 5, 1:51 PM CDT | Special Weather Statement | LMK | Clinton | 24 min |
| Jul 5, 2:38 PM CDT | Special Weather Statement | LMK | Warren | 37 min |
| Jul 5, 2:42 PM CDT | Special Weather Statement | LMK | Simpson | 18 min |
| Jul 5, 2:45 PM CDT | Special Weather Statement | LMK | Russell | 30 min |
| Jul 5, 2:51 PM CDT | Special Weather Statement | LMK | Logan | 24 min |
| Jul 5, 2:52 PM CDT | Special Weather Statement | LMK | Metcalfe | 38 min |
| Jul 5, 2:58 PM CDT | Special Weather Statement | LMK | Allen | 17 min |
| Jul 5, 3:01 PM CDT | Special Weather Statement | LMK | Taylor | 29 min |
| Jul 5, 3:04 PM CDT | Areal Flood Advisory | LMK | Simpson, Warren | 116 min |
| Jul 5, 3:08 PM CDT | Severe Thunderstorm Warning | LMK | Marion, Taylor | 37 min |
| Jul 5, 3:14 PM CDT | Special Weather Statement | LMK | Simpson | 31 min |
| Jul 5, 3:18 PM CDT | Severe Thunderstorm Warning | LMK | Casey | 27 min |
| Jul 5, 3:19 PM CDT | Special Weather Statement | LMK | Casey | 26 min |
| Jul 5, 3:29 PM CDT | Special Weather Statement | LMK | Taylor | 31 min |
| Jul 5, 3:33 PM CDT | Severe Thunderstorm Warning | LMK | Marion, Taylor | 27 min |
| Jul 5, 3:36 PM CDT | Special Weather Statement | LMK | Edmonson | 24 min |
| Jul 5, 3:38 PM CDT | Areal Flood Advisory | LMK | Allen, Warren | 3 hr |
| Jul 5, 3:42 PM CDT | Areal Flood Advisory | LMK | Adair, Casey | 3 hr |
| Jul 5, 3:45 PM CDT | Special Weather Statement | LMK | Larue | 30 min |
| Jul 5, 3:48 PM CDT | Special Weather Statement | LMK | Larue | 27 min |
| Jul 5, 3:49 PM CDT | Special Weather Statement | LMK | Logan, Simpson | 41 min |
| Jul 5, 4:01 PM CDT | Special Weather Statement | LMK | Green | 14 min |
| Jul 5, 4:08 PM CDT | Areal Flood Advisory | LMK | Simpson | 3 hr |
| Jul 5, 4:12 PM CDT | Special Weather Statement | LMK | Hardin | 18 min |
| Jul 5, 4:15 PM CDT | Severe Thunderstorm Warning | LMK | Larue, Nelson | 30 min |
| Jul 5, 4:31 PM CDT | Special Weather Statement | LMK | Larue | 29 min |
| Jul 5, 4:44 PM CDT | Special Weather Statement | LMK | Larue | 31 min |
| Jul 5, 4:53 PM CDT | Special Weather Statement | LMK | Bullitt, Hardin, Nelson | 37 min |
| Jul 5, 5:07 PM CDT | Areal Flood Advisory | LMK | Grayson, Green, Hardin, Larue, Nelson, Taylor | 113 min |
| Jul 5, 5:09 PM CDT | Special Weather Statement | LMK | Grayson | 36 min |
| Jul 5, 5:28 PM CDT | Special Weather Statement | LMK | Hardin | 32 min |
| Jul 5, 5:39 PM CDT | Areal Flood Warning | LMK | Hardin, Larue | 2 hr |
| Jul 5, 5:43 PM CDT | Flash Flood Warning | LMK | Grayson | 3 hr |
| Jul 5, 5:45 PM CDT | Special Weather Statement | LMK | Grayson | 30 min |
| Jul 5, 5:49 PM CDT | Special Weather Statement | LMK | Ohio | 26 min |
| Jul 5, 5:50 PM CDT | Special Weather Statement | LMK | Breckinridge | 25 min |
| Jul 5, 5:51 PM CDT | Areal Flood Advisory | LMK | Jefferson | 3 hr |
| Jul 5, 6:02 PM CDT | Areal Flood Advisory | LMK | Butler, Ohio | 118 min |
| Jul 5, 6:03 PM CDT | Special Weather Statement | LMK | Jefferson | 27 min |
| Jul 5, 6:10 PM CDT | Areal Flood Advisory | LMK | Breckinridge, Hardin | 2 hr |
| Jul 5, 6:22 PM CDT | Special Weather Statement | LMK | Ohio | 38 min |
| Jul 5, 6:43 PM CDT | Areal Flood Advisory | LMK | Breckinridge, Grayson, Hancock, Ohio | 3 hr |
| Jul 5, 5:54 PM CDT | Special Weather Statement | LMK | Harrison | 36 min |
| Jul 5, 6:41 PM CDT | Special Weather Statement | LMK | Harrison | 34 min |
Nearby
Severe Thunderstorm Warnings in Kentucky, 2020Every severe thunderstorm warning in 2020
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.