Alert archive / Kentucky / Flash Flood Warnings in 2021

Flash Flood Warning 47, NWS Jackson, KY

July 17, 2021Pulaski County, Kentucky

NWS Jackson, KY issued this flash flood warning at Jul 17, 2021, 8:01 PM EDT for Pulaski County, Kentucky. It was in force for 2 hr. 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 17, 2021, 8:01 PM EDT (00:01 UTC)
Expired: Jul 17, 2021, 10:30 PM EDT
In force: 2 hr
Issued by: NWS Jackson, KY
Area: Storm-based polygon
Flood severity: None

County Pulaski County, KY

The radar

The Jackson,KY radar (KJKL), 114 km from the middle of the area, began a volume at 00:03 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 00:00Z, 0.0 hours before the alert went out and 222 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: 1153 J/kg
Mixed-layer CIN: -12 J/kg
Mixed-layer LCL: 894 m above ground
0-6 km bulk shear: 11 kt
0-1 km storm-relative helicity: 57 m²/s²
0-3 km storm-relative helicity: 81 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

390 
WGUS53 KJKL 180001
FFWJKL
KYC199-180230-
/O.NEW.KJKL.FF.W.0047.210718T0001Z-210718T0230Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Jackson KY
801 PM EDT Sat Jul 17 2021

The National Weather Service in Jackson has issued a

* Flash Flood Warning for...
  Northeastern Pulaski County in south central Kentucky...

* Until 1030 PM EDT.

* At 801 PM EDT, Doppler radar indicated thunderstorms producing 
  heavy rain across the warned area. Between 1.5 and 2 inches of 
  rain have fallen. Additional rainfall amounts of 0.5 to 1 inch 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...
  Bobtown, Woodstock, Dabney and Valley Oak.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

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 3725 8465 3728 8449 3727 8443 3721 8437
      3719 8446 3717 8462

FLASH FLOOD...RADAR INDICATED

$$

GREIF

2 follow-up statements

646 
WGUS73 KJKL 180107
FFSJKL

Flash Flood Statement
National Weather Service Jackson KY
907 PM EDT Sat Jul 17 2021

KYC199-180230-
/O.CON.KJKL.FF.W.0047.000000T0000Z-210718T0230Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Pulaski KY-
907 PM EDT Sat Jul 17 2021

...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1030 PM EDT THIS 
EVENING FOR NORTHEASTERN PULASKI COUNTY...

At 907 PM EDT, 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...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...
  Bobtown, Woodstock, Dabney and Valley Oak.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

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 3725 8465 3728 8449 3727 8443 3721 8437
      3719 8446 3717 8462

FLASH FLOOD...RADAR INDICATED

$$

GREIF

490 
WGUS73 KJKL 180226
FFSJKL

Flash Flood Statement
National Weather Service Jackson KY
1026 PM EDT Sat Jul 17 2021

KYC199-180236-
/O.EXP.KJKL.FF.W.0047.000000T0000Z-210718T0230Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Pulaski KY-
1026 PM EDT Sat Jul 17 2021

...FLASH FLOOD WARNING WILL EXPIRE AT 1030 PM EDT THIS EVENING FOR 
NORTHEASTERN PULASKI COUNTY...

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

LAT...LON 3725 8465 3728 8449 3727 8443 3721 8437
      3719 8446 3717 8462

$$

GREIF

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 17, 8:35 PM EDT	Areal Flood Advisory	JKL	Laurel, Rockcastle	3 hr
Jul 17, 9:56 PM EDT	Areal Flood Advisory	JKL	Clay, Knox, Laurel	5 hr
Jul 17, 10:30 PM EDT	Areal Flood Advisory	JKL	Knox, Laurel, Whitley	3 hr
Jul 17, 10:58 PM EDT	Areal Flood Advisory	JKL	Clay, Laurel	3 hr
Jul 17, 11:18 PM EDT	Flash Flood Warning	JKL	Laurel	2 hr
Jul 17, 11:25 PM EDT	Areal Flood Advisory	JKL	Clay, Leslie	2 hr
Jul 18, 1:59 AM EDT	Special Weather Statement	JKL	Pulaski	46 min
Jul 18, 2:03 AM EDT	Areal Flood Advisory	JKL	Pulaski	82 min
Jul 18, 2:05 AM EDT	Special Weather Statement	JKL	Laurel	40 min
Jul 18, 2:20 AM EDT	Areal Flood Advisory	JKL	Knox, Laurel, Whitley	3 hr
Jul 18, 2:57 AM EDT	Flash Flood Warning	JKL	Laurel, Whitley	3 hr
Jul 18, 3:06 PM EDT	Areal Flood Advisory	JKL	Harlan, Letcher	3 hr
Jul 18, 4:02 PM EDT	Areal Flood Advisory	JKL	Bell, Harlan, Knox, Whitley	2 hr
Jul 18, 4:51 PM EDT	Areal Flood Advisory	JKL	McCreary, Whitley	101 min

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.