Alert archive / Kentucky / Flash Flood Warnings in 2021
Flash Flood Warning 9, NWS Jackson, KY
NWS Jackson, KY issued this flash flood warning at Feb 28, 2021, 11:15 PM EST for 10 counties in Kentucky. It was in force for 4 hr. 1 report came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Feb 28, 2021, 11:15 PM EST (04:15 UTC)
- Expired
- Mar 1, 2021, 3:00 AM EST
- In force
- 4 hr
- Issued by
- NWS Jackson, KY
- Area
- Storm-based polygon
- Flood severity
- None
Counties Clay County, KY, Jackson County, KY, Knox County, KY, Laurel County, KY, McCreary County, KY, Owsley County, KY, Pulaski County, KY, Rockcastle County, KY, Wayne County, KY, Whitley County, KY
The radar
The Knoxville radar (KMRX), 149 km from the middle of the area, began a volume at 04:15 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Mar 1, 12:25 AM EST | FLASH FLOOD | 1 Nne Somerset, KY | PICTURE FROM SOCIAL MEDIA SHOWING WATER SURROUNDING AND INUNDATING BUILDINGS IN DOWNTOWN SOMERSET. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Nashville Metro, TN (KBNA), launched 00:00Z, 4.3 hours before the alert went out and 179 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
- 419 J/kg
- Mixed-layer CIN
- -8 J/kg
- Mixed-layer LCL
- 979 m above ground
- 0-6 km bulk shear
- 66 kt
- 0-1 km storm-relative helicity
- 220 m²/s²
- 0-3 km storm-relative helicity
- 278 m²/s²
- Significant tornado parameter
- 0.7
- Supercell composite
- 4.5
The text
As transmitted.
606
WGUS53 KJKL 010415
FFWJKL
KYC051-109-121-125-147-189-199-203-231-235-010800-
/O.NEW.KJKL.FF.W.0009.210301T0415Z-210301T0800Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Jackson KY
1115 PM EST Sun Feb 28 2021
The National Weather Service in Jackson has issued a
* Flash Flood Warning for...
Laurel County in south central Kentucky...
McCreary County in south central Kentucky...
Pulaski County in south central Kentucky...
Southern Rockcastle County in south central Kentucky...
Wayne County in south central Kentucky...
Northern Whitley County in south central Kentucky...
Western Clay County in southeastern Kentucky...
Southern Jackson County in southeastern Kentucky...
Knox County in southeastern Kentucky...
West Central Owsley County in southeastern Kentucky...
* Until 300 AM EST.
* At 1115 PM EST, Doppler radar indicated thunderstorms producing
heavy rain across the warned area. Flash flooding is ongoing or
expected to begin shortly.
HAZARD...Flash flooding caused by thunderstorms.
SOURCE...Doppler radar.
IMPACT...Flooding of small creeks and streams, urban areas,
highways, streets and underpasses as well as other
drainage and low lying areas.
* Some locations that will experience flash flooding include...
Somerset, London, Monticello, Williamsburg, Barbourville,
Manchester, Whitley City, Science Hill, Burnside, Huxley,
Rockcastle Springs, Baldrock, Mount Victory, Holly Bay Rec. Area,
Bark Camp, Dykes, Grove, Vox, Grade and Cumberland Falls S.P.
Additional rainfall amounts of 1 to 2 inches are possible in the
warned area.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Be especially cautious at night when it is harder to recognize the
dangers of flooding.
&&
LAT...LON 3704 8491 3711 8490 3721 8476 3740 8375
3689 8366 3660 8467 3661 8494 3663 8500
3665 8500 3667 8501 3668 8500 3670 8502
3675 8500 3681 8503 3683 8506 3686 8506
3692 8496 3696 8495 3695 8491 3700 8484
FLASH FLOOD...RADAR INDICATED
$$
GREIF2 follow-up statements
476
WGUS73 KJKL 010612
FFSJKL
Flash Flood Statement
National Weather Service Jackson KY
112 AM EST Mon Mar 1 2021
KYC051-109-121-125-147-189-199-203-231-235-010800-
/O.CON.KJKL.FF.W.0009.000000T0000Z-210301T0800Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Clay KY-Jackson KY-Knox KY-Laurel KY-McCreary KY-Owsley KY-Pulaski
KY-Rockcastle KY-Wayne KY-Whitley KY-
112 AM EST Mon Mar 1 2021
...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 3 AM EST EARLY THIS
MORNING FOR LAUREL, MCCREARY, PULASKI, SOUTHERN ROCKCASTLE, WAYNE,
NORTHERN WHITLEY, WESTERN CLAY, SOUTHERN JACKSON, KNOX AND WEST
CENTRAL OWSLEY COUNTIES...
At 112 AM EST, Doppler radar indicated that the showers were
weakening over the area, but another quarter to half an inch of rain
will be possible through 3 am.
HAZARD...Flash flooding caused by thunderstorms.
SOURCE...Doppler radar.
IMPACT...Flooding of small creeks and streams, urban areas,
highways, streets and underpasses as well as other
drainage and low lying areas.
Some locations that will experience flash flooding include...
Somerset, London, Monticello, Williamsburg, Barbourville,
Manchester, Whitley City, Science Hill, Burnside, Huxley,
Rockcastle Springs, Baldrock, Mount Victory, Holly Bay Rec. Area,
Bark Camp, Dykes, Grove, Vox, Grade and Cumberland Falls S.P.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Be especially cautious at night when it is harder to recognize the
dangers of flooding.
&&
LAT...LON 3704 8491 3711 8490 3721 8476 3740 8375
3689 8366 3660 8467 3661 8494 3663 8500
3665 8500 3667 8501 3668 8500 3670 8502
3675 8500 3681 8503 3683 8506 3686 8506
3692 8496 3696 8495 3695 8491 3700 8484
FLASH FLOOD...RADAR INDICATED
$$
GREIF286
WGUS73 KJKL 010759 RRA
FFSJKL
Flash Flood Statement
National Weather Service Jackson KY
259 AM EST Mon Mar 1 2021
KYC051-109-121-125-147-189-199-203-231-235-010809-
/O.EXP.KJKL.FF.W.0009.000000T0000Z-210301T0800Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Clay KY-Jackson KY-Knox KY-Laurel KY-McCreary KY-Owsley KY-Pulaski
KY-Rockcastle KY-Wayne KY-Whitley KY-
259 AM EST Mon Mar 1 2021
...FLASH FLOOD WARNING WILL EXPIRE AT 3 AM EST EARLY THIS MORNING
FOR LAUREL, MCCREARY, PULASKI, SOUTHERN ROCKCASTLE, WAYNE, NORTHERN
WHITLEY, WESTERN CLAY, SOUTHERN JACKSON, KNOX AND WEST CENTRAL
OWSLEY COUNTIES...
The Flash Flood threat is lessening as the rains start to taper.
Therefore, the Flash Flood Warning has been replaced by an Areal
Flood Warning.
LAT...LON 3704 8491 3711 8490 3721 8476 3740 8375
3689 8366 3660 8467 3661 8494 3663 8500
3665 8500 3667 8501 3668 8500 3670 8502
3675 8500 3681 8503 3683 8506 3686 8506
3692 8496 3696 8495 3695 8491 3700 8484
$$
GREIFThe office that day
Everything else NWS Jackson, KY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 28, 7:13 PM EST | River Flood Warning | JKL | Magoffin | 11 hr |
| Feb 28, 7:18 PM EST | Special Weather Statement | JKL | Clay, Leslie, Owsley, Perry | 57 min |
| Feb 28, 7:49 PM EST | Areal Flood Advisory | JKL | Clay, Floyd, Harlan, Knott, Knox, Laurel and 6 more | 34 min |
| Feb 28, 8:14 PM EST | Areal Flood Warning | JKL | Clay, Jackson, Knox, Laurel, McCreary, Owsley and 4 more | 3 hr |
| Feb 28, 8:16 PM EST | Special Weather Statement | JKL | Knott, Pike | 59 min |
| Feb 28, 8:17 PM EST | River Flood Warning | JKL | Breathitt | 56 hr |
| Feb 28, 8:22 PM EST | Areal Flood Warning | JKL | Bell, Clay, Floyd, Harlan, Knott, Knox and 8 more | 3 hr |
| Feb 28, 8:22 PM EST | River Flood Warning | JKL | Clay | 29 hr |
| Feb 28, 9:06 PM EST | River Flood Warning | JKL | Johnson | 61 hr |
| Feb 28, 9:11 PM EST | Special Weather Statement | JKL | McCreary, Pulaski, Wayne | 49 min |
| Feb 28, 9:20 PM EST | Severe Thunderstorm Warning | JKL | McCreary, Pulaski, Wayne | 25 min |
| Feb 28, 9:30 PM EST | Special Weather Statement | JKL | Leslie | 45 min |
| Feb 28, 9:55 PM EST | Special Weather Statement | JKL | Knox, Laurel, McCreary, Whitley | 35 min |
| Feb 28, 10:02 PM EST | Areal Flood Warning | JKL | Estill, Jackson, Johnson, Lee, Magoffin, Menifee and 4 more | 9 hr |
| Feb 28, 10:18 PM EST | Flash Flood Warning | JKL | Breathitt, Estill, Floyd, Jackson, Johnson, Lee and 7 more | 4 hr |
| Feb 28, 10:38 PM EST | Special Weather Statement | JKL | Bell, Clay, Knox, Leslie | 52 min |
| Feb 28, 10:56 PM EST | Areal Flood Advisory | JKL | Bell, Clay, Harlan, Knox, Leslie, Letcher and 2 more | 4 hr |
| Feb 28, 11:18 PM EST | Flash Flood Warning | JKL | Bell, Clay, Floyd, Harlan, Knott, Knox and 8 more | 4 hr |
| Feb 28, 11:28 PM EST | Special Weather Statement | JKL | Harlan | 32 min |
| Mar 1, 2:33 AM EST | Areal Flood Warning | JKL | Breathitt, Estill, Floyd, Jackson, Johnson, Lee and 7 more | 15 hr |
| Mar 1, 2:38 AM EST | Areal Flood Warning | JKL | Breathitt, Estill, Jackson, Laurel, Lee, Magoffin and 5 more | 13 hr |
| Mar 1, 2:43 AM EST | Areal Flood Warning | JKL | Floyd, Johnson, Magoffin, Martin, Morgan, Pike | 13 hr |
| Mar 1, 2:48 AM EST | Areal Flood Warning | JKL | Breathitt, Floyd, Jackson, Knott, Magoffin, Owsley and 1 more | 13 hr |
| Mar 1, 2:52 AM EST | Areal Flood Warning | JKL | Breathitt, Clay, Floyd, Jackson, Knott, Leslie and 4 more | 13 hr |
| Mar 1, 2:58 AM EST | Areal Flood Warning | JKL | Bell, Clay, Floyd, Harlan, Jackson, Knott and 12 more | 13 hr |
| Mar 1, 3:02 AM EST | Areal Flood Advisory | JKL | Bell, Clay, Harlan, Knox, Leslie, Letcher and 4 more | 7 hr |
| Mar 1, 4:14 AM EST | River Flood Warning | JKL | Perry | 18 hr |
| Mar 1, 4:14 AM EST | River Flood Advisory | JKL | Letcher | 3 hr |
| Mar 1, 5:55 AM EST | River Flood Advisory | JKL | Pike | 31 hr |
| Mar 1, 6:10 AM EST | River Flood Warning | JKL | Pike | 17 hr |
| Mar 1, 6:50 AM EST | River Flood Warning | JKL | Letcher | 74 min |
| Mar 1, 8:08 AM EST | River Flood Advisory | JKL | Letcher | 6 hr |
| Mar 1, 8:18 AM EST | River Flood Advisory | JKL | Harlan | 12 hr |
| Mar 1, 8:38 AM EST | River Flood Warning | JKL | Magoffin | 17 hr |
| Mar 1, 10:05 AM EST | River Flood Warning | JKL | Bell | 12 hr |
| Mar 1, 2:00 PM EST | Areal Flood Warning | JKL | Morgan | 3 hr |
| Mar 1, 3:38 PM EST | Areal Flood Warning | JKL | Magoffin, Morgan, Rowan | 44 hr |
| Mar 1, 3:59 PM EST | Areal Flood Warning | JKL | Martin, Pike | 25 hr |
| Mar 1, 4:03 PM EST | Areal Flood Warning | JKL | Leslie, Perry | 14 days |
| Mar 1, 5:42 PM EST | Areal Flood Warning | JKL | Breathitt | 9 hr |
Nearby
Flash Flood Warnings in Kentucky, 2021Every flash 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.