Alert archive / Kentucky / Flash Flood Warnings in 2011

Flash Flood Warning 9, NWS Jackson, KY

April 16, 20114 counties in Kentucky

NWS Jackson, KY issued this flash flood warning at Apr 16, 2011, 7:51 AM EDT for 4 counties in Kentucky. It was in force for 5 hr. 1 report came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
Apr 16, 2011, 7:51 AM EDT (11:51 UTC)
Expired
Apr 16, 2011, 1:00 PM EDT
In force
5 hr
Issued by
NWS Jackson, KY
Area
Storm-based polygon
Flood severity
None

Counties Floyd County, KY, Knott County, KY, Martin County, KY, Pike County, KY

The radar

The Jackson,KY radar (KJKL), 64 km from the middle of the area, began a volume at 11:52 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.

What was reported inside it

TimeReportWhereRemark
Apr 16, 9:00 AM EDTFLASH FLOODBeauty, KYROAD IMPASSABLE NEAR THE INTERSECTION OF HIGHWAY 2031 AND KY HIGHWAY 40

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 00:00Z, 11.9 hours before the alert went out and 221 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 2011-04-16Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 2011-04-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 182 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1142 m above ground
0-6 km bulk shear
49 kt
0-1 km storm-relative helicity
182 m²/s²
0-3 km storm-relative helicity
385 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

160 
WGUS53 KJKL 161151
FFWJKL
KYC071-119-159-195-161700-
/O.NEW.KJKL.FF.W.0009.110416T1151Z-110416T1700Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE JACKSON KY
751 AM EDT SAT APR 16 2011

THE NATIONAL WEATHER SERVICE IN JACKSON KY HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  EAST CENTRAL KNOTT COUNTY IN SOUTHEAST KENTUCKY...
  EASTERN FLOYD COUNTY IN SOUTHEAST KENTUCKY...
  MARTIN COUNTY IN NORTHEAST KENTUCKY...
  NORTHWESTERN PIKE COUNTY IN SOUTHEAST KENTUCKY...

* UNTIL 100 PM EDT

* AT 749 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED AN
  AREA OF HEAVY RAINFALL ACROSS THE WARNED AREA. AN ADDITIONAL INCH 
  OF RAIN IS LIKELY ACROSS THE WARNED AREA THIS MORNING.

* RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
  OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...     
  INEZ.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FLOODING IS OCCURRING OR IS IMMINENT. MOST FLOOD RELATED DEATHS OCCUR
IN VEHICLES. DO NOT ATTEMPT TO CROSS WATER COVERED BRIDGES...DIPS...
OR LOW WATER CROSSINGS. NEVER TRY TO CROSS A FLOWING STREAM... EVEN A
SMALL ONE...ON FOOT OR IN A VEHICLE.

&&

LAT...LON 3728 8273 3727 8283 3725 8290 3773 8266
      3772 8264 3774 8265 3796 8254 3796 8251
      3795 8249 3793 8249 3788 8242 3782 8240
      3778 8233

$$

ABE
2 follow-up statements
406 
WGUS73 KJKL 161307
FFSJKL

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE JACKSON KY
907 AM EDT SAT APR 16 2011

KYC071-119-159-195-161700-
/O.CON.KJKL.FF.W.0009.000000T0000Z-110416T1700Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
MARTIN KY-FLOYD KY-PIKE KY-KNOTT KY-
907 AM EDT SAT APR 16 2011

...FLASH FLOOD WARNING REMAINS IN EFFECT FOR EAST CENTRAL KNOTT...
NORTHWESTERN PIKE...EASTERN FLOYD AND MARTIN COUNTIES UNTIL 100 PM
EDT...

AT 905 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THAT
THE HEAVIEST RAINFALL HAD EXITED THE AREA...HOWEVER ADDITIONAL 
MODERATE SHOWERS WILL CONTINUE TO MOVE THROUGH PORTIONS OF THE 
WARNED AREA BETWEEN 9 AND 10 AM. 

RUNOFF FROM THE EXCESSIVE RAINFALL THAT FEEL EARLIER WILL CONTINUE 
TO CAUSE FLASH FLOODING TO OCCUR. SOME LOCATIONS THAT WILL 
EXPERIENCE FLASH FLOODING INCLUDE...INEZ...ALUBA...ANDY... BAMMER... 
BEAUTY...BEAVER...BETSY LAYNE...BLUE MOON...BOLDMAN...BRADBURY... 
BUCKHORN HOLLOW...BUCKINGHAM...BURTON...CALF CREEK...COAL 
RUN...COALPOINT...CRAYNOR...DANA...DAVELLA...DAVISPORT...DEBORD...DEL
ONG...DEMO...DREW...DRIFT...DRY CREEK...EAST MCDOWELL...ENDICOTT... 
GALVESTON AND GREENLEAF.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

MOST FLOOD RELATED DEATHS OCCUR IN VEHICLES. DO NOT ATTEMPT TO CROSS
BRIDGES...DIPS...OR OTHER LOW SPOTS IF WATER COVERS THE ROADWAY.
NEVER TRY TO CROSS A FLOWING STREAM...EVEN A SMALL ONE...ON FOOT OR
IN A VEHICLE.

&&

LAT...LON 3728 8273 3727 8283 3725 8290 3773 8266
      3772 8264 3774 8265 3796 8254 3796 8251
      3795 8249 3793 8249 3788 8242 3782 8240
      3778 8233

$$

GEOGERIAN
965 
WGUS73 KJKL 161652
FFSJKL

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE JACKSON KY
1252 PM EDT SAT APR 16 2011

KYC071-119-159-195-161705-
/O.EXP.KJKL.FF.W.0009.000000T0000Z-110416T1700Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
MARTIN KY-FLOYD KY-PIKE KY-KNOTT KY-
1252 PM EDT SAT APR 16 2011

...THE FLASH FLOOD WARNING THAT WAS IN EFFECT FOR EAST CENTRAL
KNOTT...NORTHWESTERN PIKE...EASTERN FLOYD AND MARTIN COUNTIES WILL
BE ALLOWED TO EXPIRE AT 1 PM...

EXCESS RUNOFF FROM HEAVY RAIN HAS ENDED OVER THE WARNED AREA. STREAMS
AND CREEKS IN THE WARNED AREA HAVE RECEDED OR WERE BEGINNING TO
RECEDE...ENDING THE FLASH FLOODING THREAT. IF FLOODING HAS BEEN OBSERVED...
PLEASE REPORT IT TO YOUR LOCAL LAW ENFORCEMENT AGENCY.

LAT...LON 3728 8273 3727 8283 3725 8290 3773 8266
      3772 8264 3774 8265 3796 8254 3796 8251
      3795 8249 3793 8249 3788 8242 3782 8240
      3778 8233

$$

GEOGERIAN

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 16, 12:23 AM EDTAreal Flood AdvisoryJKLBell, Knox, Laurel, McCreary, Pulaski, Rockcastle and 2 more6 hr
Apr 16, 2:47 AM EDTAreal Flood AdvisoryJKLBath, Elliott, Menifee, Morgan, Powell, Rowan and 1 more4 hr
Apr 16, 3:13 AM EDTAreal Flood AdvisoryJKLElliott, Floyd, Johnson, Knott, Magoffin, Martin and 1 more4 hr
Apr 16, 3:56 AM EDTRiver Flood AdvisoryJKLEstill7 hr
Apr 16, 4:29 AM EDTRiver Flood AdvisoryJKLLee60 hr
Apr 16, 5:19 AM EDTAreal Flood AdvisoryJKLFloyd, Harlan, Knott, Leslie, Letcher, Perry and 1 more7 hr
Apr 16, 6:02 AM EDTFlash Flood WarningJKLBell, Harlan4 hr
Apr 16, 6:55 AM EDTAreal Flood AdvisoryJKLBreathitt, Elliott, Floyd, Johnson, Knott, Leslie and 7 more4 hr
Apr 16, 7:03 AM EDTRiver Flood AdvisoryJKLBell4 hr
Apr 16, 7:23 AM EDTRiver Flood AdvisoryJKLHarlan5 hr
Apr 16, 7:39 AM EDTRiver Flood AdvisoryJKLWhitley3 hr
Apr 16, 8:12 AM EDTAreal Flood AdvisoryJKLEstill, Lee, Menifee, Powell, Wolfe4 hr
Apr 16, 10:05 AM EDTRiver Flood WarningJKLBell19 hr
Apr 16, 10:16 AM EDTRiver Flood WarningJKLWhitley56 hr
Apr 16, 10:26 AM EDTRiver Flood WarningJKLEstill46 hr
Apr 16, 11:51 AM EDTRiver Flood AdvisoryJKLEstill, Powell21 hr
Apr 16, 11:52 AM EDTRiver Flood WarningJKLKnox35 hr
Apr 16, 12:49 PM EDTAreal Flood WarningJKLMartin9 hr
Apr 16, 2:17 PM EDTRiver Flood AdvisoryJKLOwsley23 hr
Apr 16, 4:02 PM EDTRiver Flood AdvisoryJKLClay7 hr
Apr 16, 5:01 PM EDTRiver Flood AdvisoryJKLMagoffin22 hr

Nearby

Flash Flood Warnings in Kentucky, 2011Every flash flood warning in 2011

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.