Alert archive / Kentucky / Flash Flood Warnings in 2021

Flash Flood Warning 45, NWS Jackson, KY

July 10, 2021McCreary County, Kentucky

NWS Jackson, KY issued this flash flood warning at Jul 10, 2021, 6:40 PM EDT for McCreary County, Kentucky. It was in force for 103 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: Jul 10, 2021, 6:40 PM EDT (22:40 UTC)
Expired: Jul 10, 2021, 8:23 PM EDT
In force: 103 min
Issued by: NWS Jackson, KY
Area: Storm-based polygon
Flood severity: None

County McCreary County, KY

The radar

The Knoxville radar (KMRX), 124 km from the middle of the area, began a volume at 22:44 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 12:00Z, 10.7 hours before the alert went out and 207 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 1536 J/kg
Mixed-layer CIN: -28 J/kg
Mixed-layer LCL: 721 m above ground
0-6 km bulk shear: 10 kt
0-1 km storm-relative helicity: 93 m²/s²
0-3 km storm-relative helicity: 55 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

858 
WGUS53 KJKL 102240
FFWJKL
KYC147-110115-
/O.NEW.KJKL.FF.W.0045.210710T2240Z-210711T0115Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Jackson KY
640 PM EDT Sat Jul 10 2021

The National Weather Service in Jackson has issued a

* Flash Flood Warning for...
  North Central McCreary County in south central Kentucky...

* Until 915 PM EDT.

* At 640 PM EDT, Doppler radar indicated thunderstorms producing 
  heavy rain across the warned area. Between 1.5 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...
  Parkers Lake, Greenwood and Wiborg.

Additional rainfall amounts of 0.5 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.

A Flash Flood Warning means that flooding is imminent or occurring. 
If you are in the warned area move to higher ground immediately. 
Residents living along streams and creeks should take immediate 
precautions to protect life and property.

&&

LAT...LON 3694 8443 3692 8433 3679 8450 3678 8455
      3681 8457 3683 8457 3690 8449 3694 8444

FLASH FLOOD...RADAR INDICATED

$$

GREIF

1 follow-up statement

989 
WGUS73 KJKL 110023
FFSJKL

Flash Flood Statement
National Weather Service Jackson KY
823 PM EDT Sat Jul 10 2021

KYC147-110033-
/O.CAN.KJKL.FF.W.0045.000000T0000Z-210711T0115Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
McCreary KY-
823 PM EDT Sat Jul 10 2021

...FLASH FLOOD WARNING IS CANCELLED FOR NORTH CENTRAL MCCREARY 
COUNTY...

The Flash Flood Warning is cancelled. The heavy rain has ended, and 
flooding is no longer expected to pose a threat.

LAT...LON 3694 8443 3692 8433 3679 8450 3678 8455
      3681 8457 3683 8457 3690 8449 3694 8444

$$

HAL

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 10, 12:11 PM EDT	Special Weather Statement	JKL	Elliott	34 min
Jul 10, 1:13 PM EDT	Special Weather Statement	JKL	Whitley	47 min
Jul 10, 1:45 PM EDT	Special Weather Statement	JKL	Bell, Knox, Whitley	45 min
Jul 10, 2:34 PM EDT	Special Weather Statement	JKL	Bell, Clay, Harlan, Leslie	41 min
Jul 10, 2:36 PM EDT	Special Weather Statement	JKL	Johnson	39 min
Jul 10, 3:07 PM EDT	Special Weather Statement	JKL	Floyd, Pike	38 min
Jul 10, 3:08 PM EDT	Severe Thunderstorm Warning	JKL	Floyd, Martin, Pike	52 min
Jul 10, 3:13 PM EDT	Areal Flood Advisory	JKL	Floyd, Magoffin, Martin, Pike	3 hr
Jul 10, 3:19 PM EDT	Flash Flood Warning	JKL	Floyd, Johnson, Martin	2 hr
Jul 10, 3:30 PM EDT	Special Weather Statement	JKL	Laurel	60 min
Jul 10, 3:32 PM EDT	Special Weather Statement	JKL	Pike	28 min
Jul 10, 3:33 PM EDT	Special Weather Statement	JKL	Estill, Lee, Powell	42 min
Jul 10, 3:45 PM EDT	Areal Flood Advisory	JKL	Estill	3 hr
Jul 10, 3:49 PM EDT	Flash Flood Warning	JKL	Estill	2 hr
Jul 10, 3:56 PM EDT	Special Weather Statement	JKL	Morgan	49 min
Jul 10, 3:58 PM EDT	Special Weather Statement	JKL	Magoffin, Wolfe	47 min
Jul 10, 3:59 PM EDT	Special Weather Statement	JKL	Pike	31 min
Jul 10, 4:03 PM EDT	Severe Thunderstorm Warning	JKL	Magoffin, Morgan	42 min
Jul 10, 4:11 PM EDT	Areal Flood Advisory	JKL	Pike	3 hr
Jul 10, 4:13 PM EDT	Areal Flood Advisory	JKL	Estill, Lee, Powell, Wolfe	3 hr
Jul 10, 4:18 PM EDT	Special Weather Statement	JKL	Lee	27 min
Jul 10, 4:42 PM EDT	Areal Flood Advisory	JKL	Pike	3 hr
Jul 10, 4:44 PM EDT	Areal Flood Advisory	JKL	Breathitt, Lee, Wolfe	2 hr
Jul 10, 5:09 PM EDT	Special Weather Statement	JKL	Pulaski	36 min
Jul 10, 5:41 PM EDT	Special Weather Statement	JKL	Laurel	49 min
Jul 10, 6:02 PM EDT	Special Weather Statement	JKL	Laurel	43 min
Jul 10, 6:16 PM EDT	Areal Flood Advisory	JKL	McCreary, Pulaski	105 min
Jul 10, 6:16 PM EDT	Areal Flood Advisory	JKL	Pike	52 min
Jul 10, 6:24 PM EDT	Flash Flood Warning	JKL	Pulaski	95 min
Jul 10, 6:31 PM EDT	Areal Flood Advisory	JKL	McCreary	115 min
Jul 10, 6:49 PM EDT	Areal Flood Advisory	JKL	Laurel, McCreary, Whitley	102 min
Jul 10, 7:14 PM EDT	Areal Flood Advisory	JKL	Clay	3 hr
Jul 10, 7:40 PM EDT	Areal Flood Advisory	JKL	Knox	2 hr

Nearby

Flash Flood Warnings in Kentucky, 2021 Every 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.