Alert archive / Kentucky / Flash Flood Warnings in 2011

Flash Flood Warning 28, NWS Jackson, KY

July 12, 20114 counties in Kentucky

NWS Jackson, KY issued this flash flood warning at Jul 12, 2011, 12:52 AM EDT for 4 counties in Kentucky. It was in force for 84 min. 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: Jul 12, 2011, 12:52 AM EDT (04:52 UTC)
Expired: Jul 12, 2011, 2:16 AM EDT
In force: 84 min
Issued by: NWS Jackson, KY
Area: Storm-based polygon
Flood severity: None

Counties Elliott County, KY, Fleming County, KY, Morgan County, KY, Rowan County, KY

The radar

The Jackson,KY radar (KJKL), 79 km from the middle of the area, began a volume at 04:53 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
Jul 12, 1:00 AM EDT	HEAVY RAIN 2	Morehead, KY	HEAVY RAIN CAUSED PONDING OF WATER ON MAIN STREET AND OTHER STREETS WITHIN THE CITY OF MOREHEAD. 1.49 TO 2.15 INCHES OF RAIN WAS REPORTED IN AN HOUR BETWEEN 1215 AM AND 115 AM IN THE MOREHEAD VICINITY.

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, 4.9 hours before the alert went out and 131 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: 4907 J/kg
Mixed-layer CIN: -61 J/kg
Mixed-layer LCL: 987 m above ground
0-6 km bulk shear: 34 kt
0-1 km storm-relative helicity: 202 m²/s²
0-3 km storm-relative helicity: 267 m²/s²
Significant tornado parameter: 5.9
Supercell composite: 33.6

Open this sounding in Storm Lab

The text

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

804 
WGUS53 KJKL 120452
FFWJKL
KYC063-069-175-205-120800-
/O.NEW.KJKL.FF.W.0028.110712T0452Z-110712T0800Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE JACKSON KY
1252 AM EDT TUE JUL 12 2011

THE NATIONAL WEATHER SERVICE IN JACKSON KY HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  ELLIOTT COUNTY IN EAST CENTRAL KENTUCKY...
  FLEMING COUNTY IN EAST CENTRAL KENTUCKY...
  NORTHEASTERN MORGAN COUNTY IN SOUTHEAST KENTUCKY...
  ROWAN COUNTY IN EAST CENTRAL KENTUCKY...

* UNTIL 400 AM EDT

* AT 1252 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  SLOW MOVING THUNDERSTORMS WITH VERY HEAVY RAINFALL ACROSS THE      
  WARNED AREA. SOME LOCATIONS HAVE ALREADY RECEIVED NEARLY 2 INCHES  
  OF RAINFALL BETWEEN 12 AND 12:45 AM.

* RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
  OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  FLEMINGSBURG...MOREHEAD...SANDY HOOK...BLAIRS MILLS...BLUESTONE...
  BRANDY...BRUIN...CHRISTY...CLEARFIELD...COWAN...CRAINTOWN...
  CRANEY...CRANSTON...CRIX...CULVER...DALESBURG...ELIZAVILLE...
  ELLIOTTVILLE...FANNIN VALLEY...FARLEY...FOXPORT...FREESTONE...
  GATES...GODDARD...GRANGE CITY...HALDEMAN...HAMM...HAYS CROSSING...
  HILDA AND HILLSBORO.

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.

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY.

&&

LAT...LON 3849 8358 3844 8357 3839 8340 3833 8333
      3820 8327 3828 8316 3820 8305 3821 8300
      3819 8298 3819 8292 3812 8289 3803 8301
      3798 8302 3806 8346 3826 8369 3840 8394
      3846 8399 3850 8394 3847 8386 3853 8364

$$

GEOGERIAN

2 follow-up statements

572 
WGUS73 KJKL 120527
FFSJKL

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE JACKSON KY
127 AM EDT TUE JUL 12 2011

KYC063-069-175-205-120800-
/O.CON.KJKL.FF.W.0028.000000T0000Z-110712T0800Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
FLEMING KY-ROWAN KY-ELLIOTT KY-MORGAN KY-
127 AM EDT TUE JUL 12 2011

...FLASH FLOOD WARNING REMAINS IN EFFECT FOR NORTHEASTERN MORGAN...
ELLIOTT...ROWAN AND FLEMING COUNTIES UNTIL 400 AM EDT...

AT 126 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED 
THUNDERSTORMS WITH VERY HEAVY RAINFALL HAD EXITED THE WARNED AREA. 
SOME LOCATIONS...INCLUDING MOREHEAD...HAVE SEEN OVER 2 INCHES IN 30 
MINUTES OR LESS.

RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLASH FLOODING INCLUDE...
FLEMINGSBURG...MOREHEAD...SANDY HOOK...BLAIRS MILLS...BLUESTONE...
BRANDY...BRUIN...CHRISTY...CLEARFIELD...COGSWELL...COWAN...
CRAINTOWN...CRANEY...CRANSTON...CRIX...CULVER...DALESBURG...
ELIZAVILLE...ELLIOTTVILLE...FANNIN VALLEY...FARLEY...FARMERS...
FOXPORT...FREESTONE...GATES...GODDARD...HALDEMAN...HAMM...HAYS
CROSSING AND HILDA.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY.

&&

LAT...LON 3849 8358 3844 8357 3839 8340 3833 8333
      3820 8327 3828 8316 3820 8305 3821 8300
      3819 8298 3819 8292 3812 8289 3803 8301
      3798 8302 3806 8346 3826 8369 3840 8394
      3846 8399 3850 8394 3847 8386 3853 8364

$$

GEOGERIAN

610 
WGUS73 KJKL 120616
FFSJKL

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE JACKSON KY
216 AM EDT TUE JUL 12 2011

KYC063-069-175-205-120631-
/O.CAN.KJKL.FF.W.0028.000000T0000Z-110712T0800Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
FLEMING KY-ROWAN KY-ELLIOTT KY-MORGAN KY-
216 AM EDT TUE JUL 12 2011

...THE FLASH FLOOD WARNING THAT WAS IN EFFECT FOR NORTHEASTERN
MORGAN...ELLIOTT...ROWAN AND FLEMING COUNTIES IS CANCELLED...

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 FLOOD THREAT. IF FLOODING HAS BEEN OBSERVED...
PLEASE REPORT IT TO YOUR LOCAL LAW ENFORCEMENT AGENCY.

LAT...LON 3849 8358 3844 8357 3839 8340 3833 8333
      3820 8327 3828 8316 3820 8305 3821 8300
      3819 8298 3819 8292 3812 8289 3803 8301
      3798 8302 3806 8346 3826 8369 3840 8394
      3846 8399 3850 8394 3847 8386 3853 8364

$$

GEOGERIAN

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 11, 8:05 PM EDT	Severe Thunderstorm Warning	JKL	Floyd, Johnson, Knott, Letcher, Magoffin, Martin and 1 more	40 min
Jul 12, 12:04 AM EDT	Areal Flood Advisory	JKL	Elliott, Fleming, Rowan	2 hr
Jul 12, 1:00 AM EDT	Areal Flood Advisory	JKL	Bath, Floyd, Johnson, Magoffin, Martin, Menifee and 3 more	74 min
Jul 12, 2:56 AM EDT	Areal Flood Advisory	JKL	Breathitt, Harlan, Knott, Lee, Leslie, Letcher and 3 more	96 min
Jul 12, 3:01 AM EDT	Areal Flood Advisory	JKL	Elliott, Fleming, Rowan	3 hr
Jul 12, 4:39 AM EDT	Areal Flood Advisory	JKL	Floyd, Johnson, Magoffin, Pike	107 min
Jul 12, 5:35 AM EDT	Areal Flood Advisory	JKL	Floyd, Johnson, Magoffin, Menifee, Morgan	110 min
Jul 12, 11:13 AM EDT	Excessive Heat Warning	JKL	Bath, Estill, Fleming, Jackson, Laurel, McCreary and 7 more	4 hr
Jul 12, 11:13 AM EDT	Heat Advisory	JKL	Bath, Estill, Fleming, Jackson, Laurel, McCreary and 7 more	7 hr
Jul 12, 6:41 PM EDT	Severe Thunderstorm Warning	JKL	Floyd, Johnson, Martin, Pike	49 min

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.