Alert archive / Kentucky / Flash Flood Warnings in 2018

Flash Flood Warning 21, NWS Jackson, KY

July 2, 2018Knott County, Perry County, Kentucky

NWS Jackson, KY issued this flash flood warning at Jul 2, 2018, 8:06 PM EDT for Knott County, Perry County, Kentucky. It was in force for 84 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 2, 2018, 8:06 PM EDT (00:06 UTC)
Expired
Jul 2, 2018, 9:30 PM EDT
In force
84 min
Issued by
NWS Jackson, KY
Area
Storm-based polygon
Flood severity
None

Counties Knott County, KY, Perry County, KY

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 00:00Z, 0.1 hours before the alert went out and 251 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 2018-07-03Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 525 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 2018-07-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 39 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
525 J/kg
Mixed-layer CIN
-95 J/kg
Mixed-layer LCL
1198 m above ground
0-6 km bulk shear
18 kt
0-1 km storm-relative helicity
39 m²/s²
0-3 km storm-relative helicity
40 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

902 
WGUS53 KJKL 030006
FFWJKL
KYC119-193-030130-
/O.NEW.KJKL.FF.W.0021.180703T0006Z-180703T0130Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service JACKSON KY
806 PM EDT MON JUL 2 2018

The National Weather Service in JACKSON KY has issued a

* Flash Flood Warning for...
  East central Perry County in southeastern Kentucky...
  Southwestern Knott County in southeastern Kentucky...

* Until 930 PM EDT.

* At 806 PM EDT, Doppler radar indicated thunderstorms producing
  heavy rain across the warned area. Up to two inches of rain have
  already fallen. Flash flooding is expected to begin shortly.

* Some locations that will experience flooding include...
  Hazard, Hindman, Vicco, Elic, Smithsboro, Cody, Sassafras, Anco,
  Viper, Carr Creek, Diablock and Wiscoal.

Additional rainfall amounts of an inch or so are possible in the 
warned area.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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 3733 8298 3722 8295 3713 8317 3724 8320

$$

GREIF
2 follow-up statements
236 
WGUS73 KJKL 030042
FFSJKL

Flash Flood Statement
National Weather Service JACKSON KY
842 PM EDT MON JUL 2 2018

KYC119-193-030130-
/O.CON.KJKL.FF.W.0021.000000T0000Z-180703T0130Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Perry KY-Knott KY-
842 PM EDT MON JUL 2 2018

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 930 PM EDT FOR
EAST CENTRAL PERRY AND SOUTHWESTERN KNOTT COUNTIES...

At 841 PM EDT, Doppler radar indicated thunderstorms producing heavy
rain across the warned area. Up to two inches of rain have already
fallen. Flash flooding is expected to begin shortly.

Some locations that will experience flooding include...
Hazard, Hindman, Vicco, Elic, Smithsboro, Cody, Sassafras, Anco,
Viper, Carr Creek, Diablock and Wiscoal.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Please report flooding to your local law enforcement agency when you
can do so safely.

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 3733 8298 3722 8295 3713 8317 3724 8320

$$

GREIF
110 
WGUS73 KJKL 030131
FFSJKL

Flash Flood Statement
National Weather Service JACKSON KY
931 PM EDT MON JUL 2 2018

KYC119-193-030141-
/O.EXP.KJKL.FF.W.0021.000000T0000Z-180703T0130Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Perry KY-Knott KY-
931 PM EDT MON JUL 2 2018

...THE FLASH FLOOD WARNING FOR EAST CENTRAL PERRY AND SOUTHWESTERN
KNOTT COUNTIES HAS EXPIRED...

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

LAT...LON 3733 8298 3722 8295 3713 8317 3724 8320

$$

GREIF

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 2, 8:22 PM EDTSpecial Weather StatementJKLKnott, Perry38 min
Jul 2, 8:25 PM EDTSpecial Weather StatementJKLPike50 min
Jul 2, 8:47 PM EDTAreal Flood AdvisoryJKLBreathitt, Knott, Perry118 min
Jul 2, 9:05 PM EDTSpecial Weather StatementJKLBreathitt, Magoffin40 min
Jul 2, 9:19 PM EDTFlash Flood WarningJKLBreathitt, Knott, Perry86 min
Jul 2, 9:35 PM EDTSpecial Weather StatementJKLMcCreary, Whitley55 min
Jul 2, 9:37 PM EDTSpecial Weather StatementJKLMartin53 min
Jul 2, 9:43 PM EDTSpecial Weather StatementJKLMagoffin, Morgan47 min
Jul 2, 10:24 PM EDTSpecial Weather StatementJKLKnox, Whitley51 min
Jul 2, 10:36 PM EDTSpecial Weather StatementJKLMorgan39 min
Jul 2, 10:56 PM EDTSpecial Weather StatementJKLJohnson49 min
Jul 3, 3:20 AM EDTHeat AdvisoryJKLBath, Bell, Breathitt, Clay, Elliott, Estill and 27 more41 hr

Nearby

Flash Flood Warnings in Kentucky, 2018Every flash flood warning in 2018

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.