Alert archive / Tennessee / Flash Flood Warnings in 2012
Flash Flood Warning 11, NWS Nashville, TN
NWS Nashville, TN issued this flash flood warning at Jul 14, 2012, 11:51 AM CDT for Sumner County, Wilson County, Tennessee. It was in force for 6 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
- Jul 14, 2012, 11:51 AM CDT (16:51 UTC)
- Expired
- Jul 14, 2012, 6:15 PM CDT
- In force
- 6 hr
- Issued by
- NWS Nashville, TN
- Area
- Storm-based polygon
- Flood severity
- None
Counties Sumner County, TN, Wilson County, TN
The radar
The Nashville radar (KOHX), 25 km from the middle of the area, began a volume at 16:51 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 14, 12:00 PM CDT | FLASH FLOOD | 10 W Lebanon, TN | FLOODING REPORTED IN THE GREEN HILL/OLD HICKORY AREA. |
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, 4.9 hours before the alert went out and 35 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
- 1335 J/kg
- Mixed-layer CIN
- -29 J/kg
- Mixed-layer LCL
- 664 m above ground
- 0-6 km bulk shear
- 24 kt
- 0-1 km storm-relative helicity
- 62 m²/s²
- 0-3 km storm-relative helicity
- 85 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
465
WGUS54 KOHX 141651
FFWOHX
TNC165-189-142315-
/O.NEW.KOHX.FF.W.0011.120714T1651Z-120714T2315Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE NASHVILLE TN
1151 AM CDT SAT JUL 14 2012
THE NATIONAL WEATHER SERVICE IN NASHVILLE HAS ISSUED A
* FLASH FLOOD WARNING FOR MINOR FLOODING OF POOR DRAINAGE AREAS IN...
SUMNER COUNTY IN MIDDLE TENNESSEE...
WILSON COUNTY IN MIDDLE TENNESSEE...
* UNTIL 615 PM CDT SATURDAY
* AT 1150 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
SLOW MOVING THUNDERSTORMS WITH VERY HEAVY RAINFALL ACROSS MAINLY
THE EASTERN HALF OF SUMNER COUNTY AND MOST OF WILSON COUNTY. DOPPLER
RADAR ESTIMATED TWO TO THREE INCHES OF RAINFALL HAS ALREADY FALLEN
ACROSS THIS AREA...WITH AN ADDITIONAL TWO TO FOUR THROUGH THE
AFTERNOON HOURS.
* RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
GALLATIN...LEBANON...BELINDA CITY...GREEN HILL...HENDERSONVILLE...
MOUNT JULIET...RURAL HILL...WATERTOWN AND WESTMORELAND.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...COUNTRY ROADS...AS WELL AS FARMLAND ALONG THE
BANKS OF CREEKS AND STREAMS.
&&
LAT...LON 3665 8621 3645 8625 3645 8627 3632 8628
3630 8626 3632 8625 3630 8614 3597 8603
3598 8630 3610 8651 3624 8659 3632 8668
3665 8634
$$
31The office that day
Everything else NWS Nashville, TN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 14, 10:33 AM CDT | Areal Flood Advisory | OHX | Benton, Cheatham, Clay, Davidson, Dickson, Hickman and 13 more | 8 hr |
| Jul 14, 12:04 PM CDT | Flash Flood Warning | OHX | Sumner, Wilson | 6 hr |
| Jul 14, 4:45 PM CDT | Areal Flood Advisory | OHX | Bedford, Cannon, Coffee, Giles, Hickman, Lawrence and 8 more | 6 hr |
Nearby
Flash Flood Warnings in Tennessee, 2012Every flash flood warning in 2012
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.