Alert archive / Kentucky / Flash Flood Warnings in 2016

Flash Flood Warning 41, NWS Wilmington, OH

August 28, 2016Grant County, Owen County, Kentucky

NWS Wilmington, OH issued this flash flood warning at Aug 28, 2016, 5:52 PM EDT for Grant County, Owen 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: Aug 28, 2016, 5:52 PM EDT (21:52 UTC)
Expired: Aug 28, 2016, 8:45 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 Cincinnati radar (KILN), 110 km from the middle of the area, began a volume at 21:52 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.

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 12:00Z, 9.9 hours before the alert went out and 112 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: 1387 J/kg
Mixed-layer CIN: -78 J/kg
Mixed-layer LCL: 1137 m above ground
0-6 km bulk shear: 17 kt
0-1 km storm-relative helicity: 1 m²/s²
0-3 km storm-relative helicity: 22 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

033 
WGUS51 KILN 282152
FFWILN
KYC081-187-290045-
/O.NEW.KILN.FF.W.0041.160828T2152Z-160829T0045Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE WILMINGTON OH
552 PM EDT SUN AUG 28 2016

THE NATIONAL WEATHER SERVICE IN WILMINGTON HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  NORTHERN GRANT COUNTY IN NORTHERN KENTUCKY...
  NORTH CENTRAL OWEN COUNTY IN NORTHERN KENTUCKY...

* UNTIL 845 PM EDT.

* AT 551 PM EDT...RADAR INDICATED THAT THUNDERSTORMS HAD PRODUCED
  HEAVY RAIN ACROSS THE WARNED AREA. DOPPLER RADAR ESTIMATES
  INDICATE THAT 2 TO LOCALLY 3 INCHES OF RAIN HAS FALLEN SINCE 5 PM.
  HEAVY RAIN CONTINUES TO FALL WITH ANOTHER 1 TO 2 INCHES POSSIBLE.
  RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
  OCCUR.

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  WILLIAMSTOWN...CRITTENDEN...DRY RIDGE...GLENCOE...
  WILLIAMSTOWN LAKE...ELLISTON...MUNK...NORTHCUTT...SHERMAN...
  TWIN BRIDGES...STEWARTSVILLE AND EAGLE HILL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

MOVE TO HIGHER GROUND NOW. ACT QUICKLY TO PROTECT YOUR LIFE. 

TO REPORT FLASH FLOODING...GO TO OUR WEBSITE AT WEATHER.GOV/ILN AND
SUBMIT YOUR REPORT VIA SOCIAL MEDIA...WHEN YOU CAN DO SO SAFELY.

&&

LAT...LON 3870 8487 3870 8485 3871 8483 3870 8481
      3871 8481 3873 8478 3877 8478 3878 8465
      3879 8465 3880 8461 3879 8460 3879 8453
      3867 8451 3856 8480

$$

The office that day

Everything else NWS Wilmington, OH issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Aug 28, 3:34 AM EDT	Heat Advisory	ILN	Boone, Bracken, Campbell, Carroll, Gallatin, Grant and 6 more	16 hr
Aug 28, 2:38 PM EDT	Special Weather Statement	ILN	Lewis	37 min
Aug 28, 2:57 PM EDT	Areal Flood Advisory	ILN	Lewis	2 hr
Aug 28, 3:57 PM EDT	Areal Flood Advisory	ILN	Grant, Owen	2 hr
Aug 28, 4:34 PM EDT	Flash Flood Warning	ILN	Grant, Owen	2 hr
Aug 28, 5:09 PM EDT	Areal Flood Advisory	ILN	Owen	3 hr
Aug 28, 5:11 PM EDT	Special Weather Statement	ILN	Grant	34 min
Aug 28, 5:24 PM EDT	Areal Flood Advisory	ILN	Grant, Owen, Pendleton	3 hr
Aug 28, 5:46 PM EDT	Special Weather Statement	ILN	Grant	29 min
Aug 28, 5:58 PM EDT	Special Weather Statement	ILN	Pendleton	32 min
Aug 28, 6:34 PM EDT	Severe Thunderstorm Warning	ILN	Boone, Kenton	26 min
Aug 28, 6:37 PM EDT	Areal Flood Advisory	ILN	Bracken, Mason	2 hr
Aug 28, 6:41 PM EDT	Areal Flood Advisory	ILN	Boone, Campbell, Kenton	3 hr
Aug 28, 7:17 PM EDT	Special Weather Statement	ILN	Campbell	28 min
Aug 28, 7:27 PM EDT	Flash Flood Warning Emergency	ILN	Boone, Campbell, Kenton	3 hr
Aug 28, 7:48 PM EDT	Areal Flood Advisory	ILN	Campbell	2 hr
Aug 28, 7:52 PM EDT	Areal Flood Advisory	ILN	Boone	2 hr
Aug 28, 7:58 PM EDT	Flash Flood Warning	ILN	Bracken, Campbell, Pendleton	3 hr

Nearby

Flash Flood Warnings in Kentucky, 2016 Every flash flood warning in 2016

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.