Alert archive / Kentucky / Dense Fog Advisories in 2021
Dense Fog Advisory 2, NWS Louisville, KY
NWS Louisville, KY issued this dense fog advisory at Jan 26, 2021, 3:41 AM EST for 26 counties in Kentucky; 10 counties in Indiana. It was in force for 3 hr.
The area
The counties it named.
The facts
- Issued
- Jan 26, 2021, 3:41 AM EST (08:41 UTC)
- Expired
- Jan 26, 2021, 6:11 AM EST
- In force
- 3 hr
- Issued by
- NWS Louisville, KY
All 36 counties
Clark County, IN, Crawford County, IN, Dubois County, IN, Floyd County, IN, Harrison County, IN, Jefferson County, IN, Orange County, IN, Perry County, IN, Scott County, IN, Washington County, IN, Anderson County, KY, Bourbon County, KY, Breckinridge County, KY, Bullitt County, KY, Fayette County, KY, Franklin County, KY, Grayson County, KY, Hancock County, KY, Hardin County, KY, Harrison County, KY, Henry County, KY, Jefferson County, KY, Jessamine County, KY, Larue County, KY, Meade County, KY, Mercer County, KY, Nelson County, KY, Nicholas County, KY, Ohio County, KY, Oldham County, KY, Scott County, KY, Shelby County, KY, Spencer County, KY, Trimble County, KY, Washington County, KY, Woodford County, KY
The radar
The Louisville radar (KLVX), 39 km from the middle of the area, began a volume at 08:45 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, 8.7 hours before the alert went out and 241 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 548 m above ground
- 0-6 km bulk shear
- 66 kt
- 0-1 km storm-relative helicity
- 654 m²/s²
- 0-3 km storm-relative helicity
- 735 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 2.2
What forecasters said that day
The local office's own words before this dense fog advisory 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 dense fog advisory went out at Jan 26, 3:30 AM EST, 11 minutes earlier.
Area forecast discussion, Jan 26, 3:30 AM EST, 11 minutes before
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</html>Hazardous weather outlook, Jan 25, 4:04 PM EST, 11 hours 37 minutes before
Hazardous Weather Outlook National Weather Service Louisville KY 404 PM EST Mon Jan 25 2021 INZ076>079-083-084-089>092-KYZ023>043-045>049-053>057-061>067- 070>078-081-082-262115- 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 404 PM EST Mon Jan 25 2021 /304 PM CST Mon Jan 25 2021/ This hazardous weather outlook is for portions of south central Indiana and Central Kentucky. .DAY ONE...Tonight. Widespread soaking rainfall will continue until early evening, with localized heavy rainfall possible later in the evening. Minor flooding of low-lying areas will be possible where heavy rain falls repeatedly. The best chance of flooding or ponding will be south of the Western Kentucky and Bluegrass Parkways. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. Minor snow accumulations are possible Wednesday afternoon into Wednesday night, mainly across southern Indiana and north central Kentucky. .SPOTTER INFORMATION STATEMENT... Spotters are encouraged to report any observed flooding through tonight. && More information, along with other weather, hydrological and climate information can be found, at weather.gov/louisville. RAS
In the hours before
Special weather statement, Jan 25, 9:41 PM EST, 6 hours before
Special Weather Statement
National Weather Service Louisville KY
941 PM EST Mon Jan 25 2021
KYZ046-047-260315-
Mercer-Washington-
941 PM EST Mon Jan 25 2021
...A STRONG THUNDERSTORM WILL AFFECT MERCER AND WASHINGTON
COUNTIES...
At 940 PM EST, a strong thunderstorm was located near Springfield,
moving northeast at 65 mph.
Half inch hail is possible with this storm.
Locations impacted include...
Harrodsburg, Burgin, Mackville, Oregon, Shakertown, Vanarsdell,
Ebenezer, Rineltown, Talmage, and Cornishville.
If outdoors, seek shelter inside a building.
LAT...LON 3777 8471 3768 8497 3768 8502 3766 8503
3763 8512 3763 8516 3771 8521 3794 8480
3789 8480 3790 8478 3791 8478 3790 8477
3789 8478 3787 8476 3785 8477 3786 8472
3785 8470 3783 8473
TIME...MOT...LOC 0240Z 239DEG 56KT 3768 8512
13Special weather statement, Jan 25, 11:43 PM EST, 3 hours 58 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 |
|---|---|---|---|---|
| Jan 25, 7:10 PM EST | Areal Flood Advisory | LMK | Edmonson, Hart | 5 hr |
| Jan 25, 7:46 PM EST | River Flood Advisory | LMK | Bourbon | 112 min |
| Jan 25, 8:09 PM EST | Areal Flood Advisory | LMK | Casey, Green, Taylor | 4 hr |
| Jan 25, 8:11 PM EST | Special Weather Statement | LMK | Allen | 19 min |
| Jan 25, 8:17 PM EST | Severe Thunderstorm Warning | LMK | Allen, Barren, Monroe | 30 min |
| Jan 25, 8:39 PM EST | Areal Flood Advisory | LMK | Adair, Barren, Casey, Cumberland, Green, Metcalfe and 1 more | 4 hr |
| Jan 25, 8:39 PM EST | River Flood Warning | LMK | Butler, Warren | 4 days |
| Jan 25, 8:47 PM EST | Special Weather Statement | LMK | Metcalfe | 28 min |
| Jan 25, 8:50 PM EST | Areal Flood Advisory | LMK | Garrard, Lincoln, Madison | 4 hr |
| Jan 25, 9:17 PM EST | Special Weather Statement | LMK | Marion | 28 min |
| Jan 25, 9:35 PM EST | Special Weather Statement | LMK | Clinton | 40 min |
| Jan 25, 9:38 PM EST | River Flood Warning | LMK | Bourbon | 25 hr |
| Jan 25, 9:41 PM EST | Special Weather Statement | LMK | Mercer | 34 min |
| Jan 25, 9:56 PM EST | River Flood Warning | LMK | Ohio | 44 hr |
| Jan 25, 10:03 PM EST | River Flood Advisory | LMK | Hart | 15 hr |
| Jan 25, 10:12 PM EST | River Flood Advisory | LMK | Warren | 18 hr |
| Jan 25, 10:21 PM EST | River Flood Advisory | LMK | Franklin | 25 hr |
| Jan 25, 10:38 PM EST | River Flood Warning | LMK | Butler, Muhlenberg, Ohio | 4 days |
| Jan 26, 11:55 AM EST | River Flood Advisory | LMK | Hardin, Nelson | 9 hr |
| Jan 26, 1:05 PM EST | River Flood Warning | LMK | Hart | 31 hr |
| Jan 26, 2:59 PM EST | Winter Weather Advisory | LMK | Adair, Allen, Anderson, Barren, Bourbon, Boyle and 43 more | 33 hr |
Nearby
Dense Fog Advisories in Kentucky, 2021Dense Fog Advisories in Indiana, 2021Every dense fog advisory 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.