Alert archive / Kentucky / Flash Flood Warnings in 2009
Flash Flood Warning 21, NWS Wilmington, OH
NWS Wilmington, OH issued this flash flood warning at Aug 4, 2009, 2:17 PM EDT for Grant County, Owen County, Kentucky. It was in force for 3 hr. 2 reports 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
- Aug 4, 2009, 2:17 PM EDT (18:17 UTC)
- Expired
- Aug 4, 2009, 5:15 PM EDT
- In force
- 3 hr
- Issued by
- NWS Wilmington, OH
- Area
- Storm-based polygon
- Flood severity
- None
Counties Grant County, KY, Owen County, KY
The radar
The Louisville radar (KLVX), 107 km from the middle of the area, began a volume at 18:18 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 |
|---|---|---|---|
| Aug 4, 2:43 PM EDT | FLASH FLOOD | Gratz, KY | WATER REPORTED CROSSING THE ROAD ON HIGHWAY 355. |
| Aug 4, 4:22 PM EDT | FLASH FLOOD | Owenton, KY | FLOODING FORCED THE EVACUATION OF A TRAILER AND 2 PEOPLE WERE RESCUED FROM THEIR VEHICLE TRAPPED ON A FLOODED BRIDGE ON TERESITA ROAD. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Nashville Metro, TN (KBNA), launched 12:00Z, 6.3 hours before the alert went out and 299 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.
- Mixed-layer CAPE
- 3443 J/kg
- Mixed-layer CIN
- -21 J/kg
- Mixed-layer LCL
- 680 m above ground
- 0-6 km bulk shear
- 24 kt
- 0-1 km storm-relative helicity
- 80 m²/s²
- 0-3 km storm-relative helicity
- 42 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 2.8
The text
As transmitted, in the capitals the NWS used until 2016.
000
WGUS51 KILN 041817
FFWILN
KYC081-187-042115-
/O.NEW.KILN.FF.W.0021.090804T1817Z-090804T2115Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE WILMINGTON OH
217 PM EDT TUE AUG 4 2009
THE NATIONAL WEATHER SERVICE IN WILMINGTON HAS ISSUED A
* FLASH FLOOD WARNING FOR...
SOUTHERN GRANT COUNTY IN NORTHERN KENTUCKY...
SOUTHERN OWEN COUNTY IN NORTHERN KENTUCKY...
* UNTIL 515 PM EDT.
* AT 212 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
THAT THUNDERSTORMS HAD PRODUCED HEAVY RAINFALL ACROSS THE WARNED
AREA. RADAR ESTIMATED 1 TO 2 INCHES OF RAIN HAD FALLEN ACROSS THE
WARNING AREA SINCE 1 PM EDT.
* HEAVY RAIN CONTINUES TO FALL ACROSS THE WARNED AREA WITH AN
ADDITIONAL 1 TO 2 INCHES POSSIBLE THROUGH 515 PM EDT. RUNOFF FROM
THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO OCCUR.
SOME LOCATIONS THAT MAY EXPERIENCE FLOODING INCLUDE...OWENTON.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
HEAVY RAINS FLOOD ROADS AND LOW LYING AREAS RAPIDLY. DO NOT DRIVE
YOUR VEHICLE INTO WATER OF AN UNKNOWN DEPTH ON THE THE ROAD. IT ONLY
TAKES TWO FEET OF RUSHING WATER TO CARRY AWAY MOST SPORT UTILITY
VEHICLES AND PICKUPS. TAKE A DIFFERENT ROUTE TO REACH YOUR
DESTINATION OR WAIT UNTIL THE WATER RECEDES. REMEMBER...MOST FLOOD
RELATED DEATHS OCCUR IN AUTOMOBILES.
&&
LAT...LON 3835 8487 3838 8491 3842 8490 3844 8494
3845 8493 3842 8497 3846 8497 3849 8500
3851 8499 3852 8497 3860 8472 3851 8453
3839 8468 3834 8477
$$The office that day
Everything else NWS Wilmington, OH issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 4, 8:42 AM EDT | Severe Thunderstorm Warning | ILN | Lewis | 19 min |
| Aug 4, 9:06 AM EDT | Areal Flood Advisory | ILN | Lewis, Mason | 3 hr |
| Aug 4, 11:11 AM EDT | Flash Flood Watch | ILN | Boone, Bracken, Campbell, Carroll, Gallatin, Grant and 6 more | 16 hr |
| Aug 4, 11:55 AM EDT | Severe Thunderstorm Warning | ILN | Carroll, Gallatin, Owen | 50 min |
| Aug 4, 12:37 PM EDT | Areal Flood Advisory | ILN | Carroll, Gallatin, Owen | 3 hr |
| Aug 4, 1:36 PM EDT | Flash Flood Warning | ILN | Carroll, Gallatin, Owen | 3 hr |
| Aug 4, 4:29 PM EDT | Areal Flood Warning | ILN | Carroll, Gallatin, Grant, Owen | 4 hr |
Nearby
Flash Flood Warnings in Kentucky, 2009Every flash flood warning in 2009
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.