Alert archive / Kentucky / Flash Flood Warnings in 2011

Flash Flood Warning 13, NWS Jackson, KY

April 27, 20114 counties in Kentucky

NWS Jackson, KY issued this flash flood warning at Apr 27, 2011, 10:28 PM EDT for 4 counties in Kentucky. It was in force for 4 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 27, 2011, 10:28 PM EDT (02:28 UTC)
Expired: Apr 28, 2011, 2:30 AM EDT
In force: 4 hr
Issued by: NWS Jackson, KY
Area: Storm-based polygon
Flood severity: None

Counties Bath County, KY, Fleming County, KY, Montgomery County, KY, Rowan County, KY

The radar

The Jackson,KY radar (KJKL), 70 km from the middle of the area, began a volume at 02:28 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

Time	Report	Where	Remark
Apr 27, 11:45 PM EDT	FLASH FLOOD	1 Nnw Hilda, KY	BIG WOODS ROAD OFF OF ROUTE 32 CLOSED DUE TO 18 INCHES OF WATER SWIFTLY FLOWING OVER THE ROAD.

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, 2.5 hours before the alert went out and 143 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 775 m above ground
0-6 km bulk shear: 70 kt
0-1 km storm-relative helicity: 96 m²/s²
0-3 km storm-relative helicity: 521 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.5

Open this sounding in Storm Lab

The text

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

386 
WGUS53 KJKL 280228
FFWJKL
KYC011-069-173-205-280630-
/O.NEW.KJKL.FF.W.0013.110428T0228Z-110428T0630Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE JACKSON KY
1028 PM EDT WED APR 27 2011

THE NATIONAL WEATHER SERVICE IN JACKSON KY HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  BATH COUNTY IN EAST CENTRAL KENTUCKY...
  MONTGOMERY COUNTY IN EAST CENTRAL KENTUCKY...
  NORTHWESTERN ROWAN COUNTY IN EAST CENTRAL KENTUCKY...
  SOUTHEASTERN FLEMING COUNTY IN EAST CENTRAL KENTUCKY...

* UNTIL 230 AM EDT

* AT 1021 PM EDT...WEATHER RADAR SHOWED ESTIMATED RAINFALL OF MORE 
  THAN AN INCH IN SOME LOCATIONS IN THE WARNING AREA BETWEEN 920 AND 
  1020 PM. THUNDERSTORMS WITH HEAVY RAINFALL CONTINUED TO MOVE  
  OVER THE AREA. 

* RUNOFF FROM THIS EXCESSIVE RAINFALL WILL LIKELY CAUSE FLASH 
  FLOODING TO OCCUR. SOME LOCATIONS THAT MAY EXPERIENCE FLOODING 
  INCLUDE...MOUNT   STERLING...OWINGSVILLE...BEAN...
  BOURBON FURNACE...CAMARGO...COONS STATION...CRAIGS...CRANSTON...
  CROOKS...EWINGTON...FARMERS...FLAT CREEK...GATEWOODS STATION...
  GODDARD...GRANGE CITY...GRASSY LICK...HAYS CROSSING...HILDA...
  HILLSBORO...HOPE...HOWARDS MILL...JEFFERSONVILLE...JUDY...
  KENDALL SPRINGS...KLONDIKE...LEVEE...LOWER SPENCER...
  LUCKY STOP...MARSHALL...AND MIDLAND.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. IF FLASH FLOODING IS OBSERVED ACT QUICKLY. DO
NOT ENTER THE WATER. TURN AROUND AND MOVE UP TO HIGHER GROUND TO
ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS SUBJECT TO FLOODING WHEN
WATER BEGINS RISING.

&&

LAT...LON 3840 8346 3840 8342 3840 8340 3831 8333
      3802 8366 3801 8375 3799 8378 3792 8378
      3791 8380 3791 8389 3794 8399 3807 8407
      3845 8358

$$

HAL

1 follow-up statement

134 
WGUS73 KJKL 280630
FFSJKL

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE JACKSON KY
230 AM EDT THU APR 28 2011

KYC011-069-173-205-280645-
/O.EXP.KJKL.FF.W.0013.000000T0000Z-110428T0630Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
FLEMING KY-ROWAN KY-BATH KY-MONTGOMERY KY-
230 AM EDT THU APR 28 2011

...THE FLASH FLOOD WARNING THAT WAS IN EFFECT FOR MONTGOMERY...
BATH...NORTHWESTERN ROWAN AND SOUTHEASTERN FLEMING COUNTIES HAS BEEN
ALLOWED TO EXPIRE...

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

LAT...LON 3840 8346 3840 8342 3840 8340 3831 8333
      3802 8366 3801 8375 3799 8378 3792 8378
      3791 8380 3791 8389 3794 8399 3807 8407
      3845 8358

$$

GEOGERIAN

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 27, 8:16 PM EDT	Severe Thunderstorm Warning	JKL	Floyd, Knott, Letcher, Pike	44 min
Apr 27, 8:46 PM EDT	Severe Thunderstorm Warning	JKL	Pike	44 min
Apr 27, 8:53 PM EDT	Areal Flood Advisory	JKL	Bell, Breathitt, Floyd, Harlan, Johnson, Knott and 7 more	6 hr
Apr 27, 9:17 PM EDT	Severe Thunderstorm Warning	JKL	Bell, Knox, McCreary, Whitley	43 min
Apr 27, 10:31 PM EDT	Areal Flood Warning	JKL	Bell, Clay, Harlan, Knox, Leslie, Letcher and 2 more	9 hr
Apr 27, 11:08 PM EDT	Areal Flood Advisory	JKL	Bath, Breathitt, Clay, Elliott, Fleming, Floyd and 12 more	6 hr
Apr 28, 12:03 AM EDT	River Flood Advisory	JKL	Estill, Powell	54 hr
Apr 28, 1:58 AM EDT	Areal Flood Warning	JKL	Clay, Knox, Laurel, McCreary, Wayne, Whitley	8 hr
Apr 28, 5:57 AM EDT	River Flood Advisory	JKL	Clay	16 hr
Apr 28, 7:00 AM EDT	River Flood Advisory	JKL	Lee	47 hr
Apr 28, 7:00 AM EDT	River Flood Advisory	JKL	Estill	54 hr
Apr 28, 8:21 AM EDT	Areal Flood Warning	JKL	Knox	30 hr
Apr 28, 8:57 AM EDT	River Flood Advisory	JKL	Owsley	26 hr
Apr 28, 10:05 AM EDT	Areal Flood Warning	JKL	McCreary	12 hr
Apr 28, 4:06 PM EDT	River Flood Warning	JKL	Estill	22 hr

Nearby

Flash Flood Warnings in Kentucky, 2011 Every 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.