Alert archive / Kentucky / Flash Flood Warnings in 2018

Flash Flood Warning 49, NWS Jackson, KY

October 11, 2018Pulaski County, Rockcastle County, Kentucky

NWS Jackson, KY issued this flash flood warning at Oct 11, 2018, 3:33 AM EDT for Pulaski County, Rockcastle County, Kentucky. It was in force for 3 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
Oct 11, 2018, 3:33 AM EDT (07:33 UTC)
Expired
Oct 11, 2018, 6:30 AM EDT
In force
3 hr
Issued by
NWS Jackson, KY
Area
Storm-based polygon
Flood severity
None

Counties Pulaski County, KY, Rockcastle County, KY

The radar

The Jackson,KY radar (KJKL), 107 km from the middle of the area, began a volume at 07:37 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, 7.6 hours before the alert went out and 228 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, Nashville Metro, TN at 00:00Z on 2018-10-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 477 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, Nashville Metro, TN at 00:00Z on 2018-10-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 14 square meters per square second.19395878Sfc1 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
477 J/kg
Mixed-layer CIN
-22 J/kg
Mixed-layer LCL
720 m above ground
0-6 km bulk shear
22 kt
0-1 km storm-relative helicity
14 m²/s²
0-3 km storm-relative helicity
34 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

175 
WGUS53 KJKL 110733
FFWJKL
KYC199-203-111030-
/O.NEW.KJKL.FF.W.0049.181011T0733Z-181011T1030Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service JACKSON KY
333 AM EDT THU OCT 11 2018

The National Weather Service in JACKSON KY has issued a

* Flash Flood Warning for...
  Southeastern Pulaski County in south central Kentucky...
  South central Rockcastle County in south central Kentucky...

* Until 630 AM EDT.

* At 331 AM EDT, Doppler radar indicated heavy rain across the 
  warned area. Up to three inches of rain have already fallen. Flash 
  flooding is expected to begin shortly.

* Some locations that will experience flooding include...
  Billows, Bloss, Grade, Dykes, Sloans Valley and Bent. 

Additional rainfall amounts of up to an 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.

&&

LAT...LON 3695 8459 3722 8436 3721 8427 3720 8426
      3720 8428 3719 8427 3717 8429 3717 8430
      3716 8429 3693 8451

$$

GREIF
2 follow-up statements
115 
WGUS73 KJKL 110901
FFSJKL

Flash Flood Statement
National Weather Service JACKSON KY
501 AM EDT THU OCT 11 2018

KYC199-203-111030-
/O.CON.KJKL.FF.W.0049.000000T0000Z-181011T1030Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Pulaski KY-Rockcastle KY-
501 AM EDT THU OCT 11 2018

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 630 AM EDT FOR
SOUTHEASTERN PULASKI AND SOUTH CENTRAL ROCKCASTLE COUNTIES...

At 500 AM EDT, Doppler radar indicated heavy rain across the warned
area. Up to three inches of rain have already fallen. Flash flooding
is expected to begin shortly.

Some locations that will experience flooding include...
Billows, Bloss, Grade, Sloans Valley, and Bent. 

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 3695 8459 3722 8436 3721 8427 3720 8426
      3720 8428 3719 8427 3717 8429 3717 8430
      3716 8429 3693 8451

$$

GREIF
700 
WGUS73 KJKL 111024
FFSJKL

Flash Flood Statement
National Weather Service JACKSON KY
624 AM EDT THU OCT 11 2018

KYC199-203-111033-
/O.EXP.KJKL.FF.W.0049.000000T0000Z-181011T1030Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Pulaski KY-Rockcastle KY-
624 AM EDT THU OCT 11 2018

...THE FLASH FLOOD WARNING FOR SOUTHEASTERN PULASKI AND SOUTH CENTRAL
ROCKCASTLE COUNTIES WILL EXPIRE AT 630 AM EDT...

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

LAT...LON 3695 8459 3722 8436 3721 8427 3720 8426
      3720 8428 3719 8427 3717 8429 3717 8430
      3716 8429 3693 8451

$$

GREIF

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 11, 1:32 AM EDTAreal Flood AdvisoryJKLBath, Fleming, Montgomery3 hr
Oct 11, 2:00 AM EDTAreal Flood AdvisoryJKLLaurel, Pulaski, Rockcastle3 hr
Oct 11, 2:15 AM EDTAreal Flood AdvisoryJKLEstill, Montgomery, Powell3 hr
Oct 11, 3:43 AM EDTAreal Flood AdvisoryJKLJackson, Laurel, Rockcastle3 hr
Oct 11, 3:47 AM EDTAreal Flood AdvisoryJKLMenifee, Morgan, Wolfe3 hr
Oct 11, 4:22 AM EDTAreal Flood AdvisoryJKLElliott, Morgan3 hr
Oct 11, 4:58 AM EDTAreal Flood AdvisoryJKLMagoffin, Morgan3 hr
Oct 11, 9:14 AM EDTAreal Flood AdvisoryJKLPike3 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; radar from the NEXRAD Level II archive.