Alert archive / Kentucky / Flash Flood Warnings in 2021

Flash Flood Warning 66, NWS Jackson, KY

August 30, 2021Floyd County, Pike County, Kentucky

NWS Jackson, KY issued this flash flood warning at Aug 30, 2021, 10:56 AM EDT for Floyd County, Pike County, Kentucky. It was in force for 4 hr. 3 reports 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
Aug 30, 2021, 10:56 AM EDT (14:56 UTC)
Expired
Aug 30, 2021, 2:32 PM EDT
In force
4 hr
Issued by
NWS Jackson, KY
Area
Storm-based polygon
Flood severity
None

Counties Floyd County, KY, Pike County, KY

The radar

The Jackson,KY radar (KJKL), 65 km from the middle of the area, began a volume at 14:59 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
Aug 30, 11:43 AM EDTFLASH FLOOD3 Nnw Zebulon, KYJOES CREEK ROAD IS BLOCKED DUE TO WATER OVER THE ROAD.
Aug 30, 11:55 AM EDTFLASH FLOOD1 E Coal Run, KYSTONE COAL ROAD IS BLOCKED BY WATER. ONE CAR IS REPORTED TO HAVE VANISHED BENEATH DEEP WATER AND OTHERS ARE STRANDED.
Aug 30, 11:57 AM EDTFLASH FLOOD1 Ne Boldman, KYFLASH FLOODING REPORTED AT VENTERS LANE TRAILER PARK.

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 12:00Z, 2.9 hours before the alert went out and 237 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 12:00Z on 2021-08-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 185 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 12:00Z on 2021-08-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -24 square meters per square second.1939Sfc1 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
185 J/kg
Mixed-layer CIN
-112 J/kg
Mixed-layer LCL
1095 m above ground
0-6 km bulk shear
23 kt
0-1 km storm-relative helicity
-24 m²/s²
0-3 km storm-relative helicity
25 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

Open this sounding in Storm Lab

The text

As transmitted.

148 
WGUS53 KJKL 301456
FFWJKL
KYC071-195-301800-
/O.NEW.KJKL.FF.W.0066.210830T1456Z-210830T1800Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Jackson KY
1056 AM EDT Mon Aug 30 2021

The National Weather Service in Jackson has issued a

* Flash Flood Warning for...
  Northeastern Floyd County in southeastern Kentucky...
  Northwestern Pike County in southeastern Kentucky...

* Until 200 PM EDT.

* At 1056 AM EDT, Doppler radar indicated thunderstorms producing 
  heavy rain across the warned area. Between 2 and 3 inches of rain 
  have fallen. Additional rainfall amounts of 1 to 2 inches are 
  possible in the warned area. Flash flooding is ongoing or expected 
  to begin shortly.

  HAZARD...Flash flooding caused by thunderstorms.

  SOURCE...Radar.

  IMPACT...Flash flooding of small creeks and streams, urban
           areas, highways, streets and underpasses as well as
           other poor drainage and low-lying areas.

* Some locations that will experience flash flooding include...
  Pikeville, Prestonsburg, Coal Run Village, Allen, Coal Run, 
  Boldman, Harold, Betsy Layne, Justell, Aluba, Osborn, Grethel, 
  Zebulon, Ivel, Honaker, Dana, Banner, Raccoon, Alvin and Emma.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood 
deaths occur in vehicles.

Be aware of your surroundings and do not drive on flooded roads.

&&

LAT...LON 3745 8262 3765 8279 3762 8248 3746 8237

FLASH FLOOD...RADAR INDICATED

$$

CMF
3 follow-up statements
370 
WGUS73 KJKL 301553
FFSJKL

Flash Flood Statement
National Weather Service Jackson KY
1153 AM EDT Mon Aug 30 2021

KYC071-195-301800-
/O.CON.KJKL.FF.W.0066.000000T0000Z-210830T1800Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Floyd KY-Pike KY-
1153 AM EDT Mon Aug 30 2021

...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 2 PM EDT THIS 
AFTERNOON FOR NORTHEASTERN FLOYD AND NORTHWESTERN PIKE COUNTIES...

At 1153 AM EDT, emergency management reported flash flooding north 
of Pikeville due to heavy rain. Between 2 and 4 inches of rain have 
fallen. Flash flooding is ongoing or expected to begin shortly.

HAZARD...Life threatening flash flooding. Thunderstorms producing
         flash flooding.

SOURCE...Emergency management reported.

IMPACT...Life threatening flash flooding of creeks and streams,
         urban areas, highways, streets and underpasses.

Some locations that will experience flash flooding include...
  Pikeville, Prestonsburg, Coal Run Village, Allen, Coal Run, 
  Boldman, Harold, Betsy Layne, Justell, Aluba, Osborn, Grethel, 
  Zebulon, Ivel, Honaker, Dana, Banner, Raccoon, Alvin and Emma.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood 
deaths occur in vehicles.

Be aware of your surroundings and do not drive on flooded roads.

Please report observed flooding to local emergency services or law 
enforcement and request they pass this information to the National 
Weather Service when you can do so safely.

&&

LAT...LON 3745 8262 3765 8279 3762 8248 3746 8237

FLASH FLOOD...OBSERVED
FLASH FLOOD DAMAGE THREAT...CONSIDERABLE

$$

CMF
894 
WGUS53 KJKL 301634
FFWJKL
KYC071-195-302000-
/O.EXT.KJKL.FF.W.0066.000000T0000Z-210830T2000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Jackson KY
1234 PM EDT Mon Aug 30 2021

The National Weather Service in Jackson has extended the

* Flash Flood Warning for...
  Northeastern Floyd County in southeastern Kentucky...
  Northwestern Pike County in southeastern Kentucky...

* Until 400 PM EDT.

* At 1234 PM EDT, emergency management reported thunderstorms 
  producing heavy rain across the warned area. Between 2 and 4 
  inches of rain have fallen. Flash flooding is ongoing or expected 
  to begin shortly.

  HAZARD...Life threatening flash flooding. Thunderstorms
           producing flash flooding.

  SOURCE...Emergency management reported.

  IMPACT...Life threatening flash flooding of creeks and streams,
           urban areas, highways, streets and underpasses.

* Some locations that will experience flash flooding include...
  Pikeville, Prestonsburg, Coal Run Village, Allen, Coal Run, 
  Boldman, Harold, Betsy Layne, Justell, Aluba, Osborn, Grethel, 
  Zebulon, Ivel, Honaker, Dana, Banner, Raccoon, Alvin and Emma.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood 
deaths occur in vehicles.

Be aware of your surroundings and do not drive on flooded roads.

Please report observed flooding to local emergency services or law 
enforcement and request they pass this information to the National 
Weather Service when you can do so safely.

&&

LAT...LON 3745 8262 3765 8279 3762 8248 3746 8237

FLASH FLOOD...OBSERVED
FLASH FLOOD DAMAGE THREAT...CONSIDERABLE

$$

CMF
213 
WGUS73 KJKL 301832 RRA
FFSJKL

Flash Flood Statement
National Weather Service Jackson KY
232 PM EDT Mon Aug 30 2021

KYC071-195-301842-
/O.CAN.KJKL.FF.W.0066.000000T0000Z-210830T2000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Floyd KY-Pike KY-
232 PM EDT Mon Aug 30 2021

...FLASH FLOOD WARNING IS CANCELLED FOR NORTHEASTERN FLOYD AND 
NORTHWESTERN PIKE COUNTIES...

Flood waters have receded. The heavy rain has ended. Flooding is no 
longer expected to pose a threat. Please continue to heed remaining 
road closures.

LAT...LON 3745 8262 3765 8279 3762 8248 3746 8237

$$

CMF

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 30, 3:43 AM EDTFlash Flood WatchJKLBath, Bell, Breathitt, Clay, Elliott, Estill and 27 more48 hr
Aug 30, 9:26 AM EDTAreal Flood AdvisoryJKLPike45 min
Aug 30, 9:52 AM EDTAreal Flood AdvisoryJKLBreathitt, Owsley3 hr
Aug 30, 10:11 AM EDTFlash Flood WarningJKLPike4 hr
Aug 30, 10:13 AM EDTAreal Flood AdvisoryJKLPike36 min
Aug 30, 10:30 AM EDTAreal Flood AdvisoryJKLFloyd, Pike3 hr
Aug 30, 10:49 AM EDTFlash Flood WarningJKLPike4 hr
Aug 30, 12:05 PM EDTAreal Flood AdvisoryJKLLee, Owsley3 hr
Aug 30, 12:57 PM EDTAreal Flood AdvisoryJKLOwsley3 hr
Aug 30, 2:03 PM EDTAreal Flood AdvisoryJKLWhitley3 hr
Aug 30, 3:12 PM EDTSpecial Weather StatementJKLHarlan63 min
Aug 30, 3:45 PM EDTSpecial Weather StatementJKLLee, Owsley45 min
Aug 30, 3:49 PM EDTSpecial Weather StatementJKLLeslie41 min
Aug 30, 3:53 PM EDTSpecial Weather StatementJKLMcCreary52 min
Aug 30, 4:03 PM EDTAreal Flood AdvisoryJKLMcCreary, Wayne3 hr
Aug 30, 4:18 PM EDTSpecial Weather StatementJKLClay42 min
Aug 30, 4:42 PM EDTAreal Flood AdvisoryJKLClay, Jackson, Laurel, Owsley3 hr
Aug 30, 4:48 PM EDTSpecial Weather StatementJKLBreathitt, Owsley42 min
Aug 30, 5:17 PM EDTFlash Flood WarningJKLClay, Laurel118 min
Aug 30, 6:09 PM EDTSpecial Weather StatementJKLFloyd51 min
Aug 30, 6:14 PM EDTAreal Flood AdvisoryJKLFloyd, Martin, Pike2 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.