Alert archive / Kentucky / Flash Flood Warnings in 2021

Flash Flood Warning 10, NWS Jackson, KY

February 28, 202114 counties in Kentucky

NWS Jackson, KY issued this flash flood warning at Feb 28, 2021, 11:18 PM EST for 14 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, 11:18 PM EST (04:18 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 Bell County, KY, Clay County, KY, Floyd County, KY, Harlan County, KY, Knott County, KY, Knox County, KY, Laurel County, KY, Leslie County, KY, Letcher County, KY, McCreary County, KY, Perry County, KY, Pike County, KY, Pulaski County, KY, Whitley County, KY

The radar

The Jackson,KY radar (KJKL), 54 km from the middle of the area, began a volume at 04:20 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

TimeReportWhereRemark
Mar 1, 12:44 AM ESTFLASH FLOOD2 Ese Avawam, KYAVAWAM FIRE DEPARTMENT DISPATCHED IN REFERENCE TO A FAMILTY TRAPPED IN THEIR HOME BY FLOOD WATERS.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 00:00Z, 4.3 hours before the alert went out and 263 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-pSkew-T log-p diagram, Cncnati-Daytn, OH at 00:00Z on 2021-03-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Cncnati-Daytn, OH at 00:00Z on 2021-03-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 94 square meters per square second.1939587897117136Sfc1 km3 km6 km9 kmRMLM
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
1 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
702 m above ground
0-6 km bulk shear
88 kt
0-1 km storm-relative helicity
94 m²/s²
0-3 km storm-relative helicity
42 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

643 
WGUS53 KJKL 010418
FFWJKL
KYC013-051-071-095-119-121-125-131-133-147-193-195-199-235-010800-
/O.NEW.KJKL.FF.W.0010.210301T0418Z-210301T0800Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Jackson KY
1118 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...
  Northeastern McCreary County in south central Kentucky...
  Southern Pulaski County in south central Kentucky...
  North Central Whitley County in south central Kentucky...
  Northeastern Bell County in southeastern Kentucky...
  Clay County in southeastern Kentucky...
  Southwestern Floyd County in southeastern Kentucky...
  Northeastern Harlan County in southeastern Kentucky...
  Southern Knott County in southeastern Kentucky...
  Northern Knox County in southeastern Kentucky...
  Leslie County in southeastern Kentucky...
  Letcher County in southeastern Kentucky...
  Southern Perry County in southeastern Kentucky...
  Southern Pike County in southeastern Kentucky...

* Until 300 AM EST.

* At 1118 PM EST, Doppler radar indicated thunderstorms producing 
  heavy rain across the warned area. Between 1 and 2 inches of rain 
  have fallen. 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, Hazard, Whitesburg, Manchester, Hyden, Letcher, 
  Bath, Cumberland, Jenkins, Elkhorn City, Wheelwright, 
  Fleming-Neon, Lynch, Burnside, Pippa Passes, Benham, Vicco, 
  Blackey and Wendover.

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 3696 8453 3701 8486 3724 8358 3722 8358
      3744 8211 3727 8235 3722 8250 3711 8272
      3704 8272 3700 8283 3696 8287 3695 8286

FLASH FLOOD...RADAR INDICATED

$$

GREIF
2 follow-up statements
887 
WGUS73 KJKL 010610
FFSJKL

Flash Flood Statement
National Weather Service Jackson KY
110 AM EST Mon Mar 1 2021

KYC125-147-199-235-010620-
/O.CAN.KJKL.FF.W.0010.000000T0000Z-210301T0800Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Laurel KY-McCreary KY-Pulaski KY-Whitley KY-
110 AM EST Mon Mar 1 2021

...FLASH FLOOD WARNING IS CANCELLED FOR LAUREL, NORTHEASTERN 
MCCREARY, SOUTHERN PULASKI AND NORTH CENTRAL WHITLEY COUNTIES...

This area is in a different Flash Flood Warning. 

LAT...LON 3704 8374 3721 8372 3744 8211 3727 8235
      3711 8272 3704 8272 3696 8287 3695 8286
      3696 8372

$$

KYC013-051-071-095-119-121-131-133-193-195-010800-
/O.CON.KJKL.FF.W.0010.000000T0000Z-210301T0800Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Bell KY-Clay KY-Floyd KY-Harlan KY-Knott KY-Knox KY-Leslie KY-
Letcher KY-Perry KY-Pike KY-
110 AM EST Mon Mar 1 2021

...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 3 AM EST EARLY THIS 
MORNING FOR BELL, SOUTHEASTERN CLAY, SOUTHWESTERN FLOYD, 
NORTHEASTERN HARLAN, SOUTHERN KNOTT, NORTHEASTERN KNOX, LESLIE, 
LETCHER, SOUTHERN PERRY AND SOUTHERN PIKE COUNTIES...

At 110 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...
  Hazard, Whitesburg, Hyden, Letcher, Bath, Cumberland, Jenkins, 
  Elkhorn City, Wheelwright, Fleming-Neon, Lynch, Pippa Passes, 
  Benham, Vicco, Blackey, Arminta, Bluefield, Ulvah, Red Star and 
  Cornettsville.

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 8374 3721 8372 3744 8211 3727 8235
      3711 8272 3704 8272 3696 8287 3695 8286
      3696 8372

FLASH FLOOD...RADAR INDICATED

$$

GREIF
029 
WGUS73 KJKL 010759
FFSJKL

Flash Flood Statement
National Weather Service Jackson KY
259 AM EST Mon Mar 1 2021

KYC013-051-071-095-119-121-131-133-193-195-010809-
/O.EXP.KJKL.FF.W.0010.000000T0000Z-210301T0800Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Bell KY-Clay KY-Floyd KY-Harlan KY-Knott KY-Knox KY-Leslie KY-
Letcher KY-Perry KY-Pike KY-
259 AM EST Mon Mar 1 2021

...FLASH FLOOD WARNING AT 3 AM EST EARLY THIS MORNING FOR 
SOUTHEASTERN CLAY, SOUTHWESTERN FLOYD, NORTHEASTERN HARLAN, SOUTHERN 
KNOTT, NORTHEASTERN KNOX, LESLIE, LETCHER, SOUTHERN PERRY AND 
SOUTHERN PIKE COUNTIES HAS BEEN REPLACED WITH A FLOOD WARNING...

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 8374 3721 8372 3744 8211 3727 8235
      3711 8272 3704 8272 3696 8287 3695 8286
      3696 8372

$$

GREIF

The office that day

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

IssuedProductOfficeCountiesLasted
Feb 28, 7:13 PM ESTRiver Flood WarningJKLMagoffin11 hr
Feb 28, 7:18 PM ESTSpecial Weather StatementJKLClay, Leslie, Owsley, Perry57 min
Feb 28, 7:49 PM ESTAreal Flood AdvisoryJKLClay, Floyd, Harlan, Knott, Knox, Laurel and 6 more34 min
Feb 28, 8:14 PM ESTAreal Flood WarningJKLClay, Jackson, Knox, Laurel, McCreary, Owsley and 4 more3 hr
Feb 28, 8:16 PM ESTSpecial Weather StatementJKLKnott, Pike59 min
Feb 28, 8:17 PM ESTRiver Flood WarningJKLBreathitt56 hr
Feb 28, 8:22 PM ESTAreal Flood WarningJKLBell, Clay, Floyd, Harlan, Knott, Knox and 8 more3 hr
Feb 28, 8:22 PM ESTRiver Flood WarningJKLClay29 hr
Feb 28, 9:06 PM ESTRiver Flood WarningJKLJohnson61 hr
Feb 28, 9:11 PM ESTSpecial Weather StatementJKLMcCreary, Pulaski, Wayne49 min
Feb 28, 9:20 PM ESTSevere Thunderstorm WarningJKLMcCreary, Pulaski, Wayne25 min
Feb 28, 9:30 PM ESTSpecial Weather StatementJKLLeslie45 min
Feb 28, 9:55 PM ESTSpecial Weather StatementJKLKnox, Laurel, McCreary, Whitley35 min
Feb 28, 10:02 PM ESTAreal Flood WarningJKLEstill, Jackson, Johnson, Lee, Magoffin, Menifee and 4 more9 hr
Feb 28, 10:18 PM ESTFlash Flood WarningJKLBreathitt, Estill, Floyd, Jackson, Johnson, Lee and 7 more4 hr
Feb 28, 10:38 PM ESTSpecial Weather StatementJKLBell, Clay, Knox, Leslie52 min
Feb 28, 10:56 PM ESTAreal Flood AdvisoryJKLBell, Clay, Harlan, Knox, Leslie, Letcher and 2 more4 hr
Feb 28, 11:15 PM ESTFlash Flood WarningJKLClay, Jackson, Knox, Laurel, McCreary, Owsley and 4 more4 hr
Feb 28, 11:28 PM ESTSpecial Weather StatementJKLHarlan32 min
Mar 1, 2:33 AM ESTAreal Flood WarningJKLBreathitt, Estill, Floyd, Jackson, Johnson, Lee and 7 more15 hr
Mar 1, 2:38 AM ESTAreal Flood WarningJKLBreathitt, Estill, Jackson, Laurel, Lee, Magoffin and 5 more13 hr
Mar 1, 2:43 AM ESTAreal Flood WarningJKLFloyd, Johnson, Magoffin, Martin, Morgan, Pike13 hr
Mar 1, 2:48 AM ESTAreal Flood WarningJKLBreathitt, Floyd, Jackson, Knott, Magoffin, Owsley and 1 more13 hr
Mar 1, 2:52 AM ESTAreal Flood WarningJKLBreathitt, Clay, Floyd, Jackson, Knott, Leslie and 4 more13 hr
Mar 1, 2:58 AM ESTAreal Flood WarningJKLBell, Clay, Floyd, Harlan, Jackson, Knott and 12 more13 hr
Mar 1, 3:02 AM ESTAreal Flood AdvisoryJKLBell, Clay, Harlan, Knox, Leslie, Letcher and 4 more7 hr
Mar 1, 4:14 AM ESTRiver Flood WarningJKLPerry18 hr
Mar 1, 4:14 AM ESTRiver Flood AdvisoryJKLLetcher3 hr
Mar 1, 5:55 AM ESTRiver Flood AdvisoryJKLPike31 hr
Mar 1, 6:10 AM ESTRiver Flood WarningJKLPike17 hr
Mar 1, 6:50 AM ESTRiver Flood WarningJKLLetcher74 min
Mar 1, 8:08 AM ESTRiver Flood AdvisoryJKLLetcher6 hr
Mar 1, 8:18 AM ESTRiver Flood AdvisoryJKLHarlan12 hr
Mar 1, 8:38 AM ESTRiver Flood WarningJKLMagoffin17 hr
Mar 1, 10:05 AM ESTRiver Flood WarningJKLBell12 hr
Mar 1, 2:00 PM ESTAreal Flood WarningJKLMorgan3 hr
Mar 1, 3:38 PM ESTAreal Flood WarningJKLMagoffin, Morgan, Rowan44 hr
Mar 1, 3:59 PM ESTAreal Flood WarningJKLMartin, Pike25 hr
Mar 1, 4:03 PM ESTAreal Flood WarningJKLLeslie, Perry14 days
Mar 1, 5:42 PM ESTAreal Flood WarningJKLBreathitt9 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.