Alert archive / Kentucky / Flash Flood Warnings in 2021

Flash Flood Warning 25, NWS Jackson, KY

June 10, 2021Elliott County, Johnson County, Morgan County, Kentucky

NWS Jackson, KY issued this flash flood warning at Jun 10, 2021, 5:03 PM EDT for Elliott County, Johnson County, Morgan County, Kentucky. It was in force for 117 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Jun 10, 2021, 5:03 PM EDT (21:03 UTC)
Expired
Jun 10, 2021, 7:00 PM EDT
In force
117 min
Issued by
NWS Jackson, KY
Area
Storm-based polygon
Flood severity
None

Counties Elliott County, KY, Johnson County, KY, Morgan County, KY

The radar

The Jackson,KY radar (KJKL), 53 km from the middle of the area, began a volume at 21:04 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

Cncnati-Daytn, OH (KILN), launched 12:00Z, 9.1 hours before the alert went out and 174 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 2021-06-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 7 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 2021-06-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -10 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
7 J/kg
Mixed-layer CIN
-43 J/kg
Mixed-layer LCL
712 m above ground
0-6 km bulk shear
5 kt
0-1 km storm-relative helicity
-10 m²/s²
0-3 km storm-relative helicity
8 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

463 
WGUS53 KJKL 102103
FFWJKL
KYC063-115-175-110000-
/O.NEW.KJKL.FF.W.0025.210610T2103Z-210611T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Jackson KY
503 PM EDT Thu Jun 10 2021

The National Weather Service in Jackson has issued a

* Flash Flood Warning for...
  Southeastern Elliott County in east central Kentucky...
  Northwestern Johnson County in northeastern Kentucky...
  East Central Morgan County in southeastern Kentucky...

* Until 800 PM EDT.

* At 503 PM EDT, Doppler radar indicated a thunderstorm producing 
  heavy rain across the warned area. Between 1 and 2 inches of rain 
  have already fallen in the last hour. 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...
  Relief, Gillem Branch, Moon, Keaton, Redbush, Crockett, Barnrock, 
  Jeptha, Elkfork, Flatgap and Winifred.

Additional rainfall amounts up to 1 inch are possible in the warned 
area.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Excessive runoff from heavy rainfall will cause flooding of small 
creeks and streams, country roads, farmland, and other low lying 
spots.

&&

LAT...LON 3802 8316 3806 8297 3804 8296 3804 8298
      3801 8302 3800 8302 3797 8302 3796 8299
      3799 8297 3800 8295 3797 8283 3794 8278
      3793 8297 3794 8314

FLASH FLOOD...RADAR INDICATED

$$

GEERTSON
1 follow-up statement
828 
WGUS73 KJKL 102300
FFSJKL

Flash Flood Statement
National Weather Service Jackson KY
700 PM EDT Thu Jun 10 2021

KYC063-115-175-102310-
/O.CAN.KJKL.FF.W.0025.000000T0000Z-210611T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Elliott KY-Johnson KY-Morgan KY-
700 PM EDT Thu Jun 10 2021

...FLASH FLOOD WARNING IS CANCELLED FOR SOUTHEASTERN ELLIOTT, 
NORTHWESTERN JOHNSON AND EAST CENTRAL MORGAN COUNTIES...

The heavy rain has ended and flash flooding is no longer expected to 
pose a threat. Please continue to heed remaining road closures.

LAT...LON 3802 8316 3806 8297 3804 8296 3804 8298
      3801 8302 3800 8302 3797 8302 3796 8299
      3799 8297 3800 8295 3797 8283 3794 8278
      3793 8297 3794 8314

$$

GEERTSON

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 9, 10:34 PM EDTAreal Flood AdvisoryJKLEstill, Powell2 hr
Jun 10, 12:39 AM EDTAreal Flood AdvisoryJKLBell, Harlan5 hr
Jun 10, 2:47 PM EDTSpecial Weather StatementJKLMenifee, Powell43 min
Jun 10, 2:50 PM EDTAreal Flood AdvisoryJKLEstill, Powell3 hr
Jun 10, 3:09 PM EDTAreal Flood AdvisoryJKLMenifee3 hr
Jun 10, 3:16 PM EDTSpecial Weather StatementJKLMenifee, Morgan44 min
Jun 10, 4:07 PM EDTAreal Flood AdvisoryJKLMenifee, Morgan2 hr
Jun 10, 4:18 PM EDTAreal Flood AdvisoryJKLBath, Menifee, Montgomery2 hr
Jun 10, 7:23 PM EDTAreal Flood AdvisoryJKLJackson, Rockcastle93 min

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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.