Alert archive / Tennessee / Flash Flood Warnings in 2011
Flash Flood Warning 42, NWS Nashville, TN
NWS Nashville, TN issued this flash flood warning at Jul 16, 2011, 12:35 AM CDT for Robertson County, Tennessee. 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
- Jul 16, 2011, 12:35 AM CDT (05:35 UTC)
- Expired
- Jul 16, 2011, 3:30 AM CDT
- In force
- 3 hr
- Issued by
- NWS Nashville, TN
- Area
- Storm-based polygon
- Flood severity
- None
County Robertson County, TN
The radar
The Nashville radar (KOHX), 40 km from the middle of the area, began a volume at 05:39 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
Nashville Metro, TN (KBNA), launched 00:00Z, 5.6 hours before the alert went out and 51 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
- 1142 J/kg
- Mixed-layer CIN
- -6 J/kg
- Mixed-layer LCL
- 1315 m above ground
- 0-6 km bulk shear
- 16 kt
- 0-1 km storm-relative helicity
- 3 m²/s²
- 0-3 km storm-relative helicity
- 29 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
479
WGUS54 KOHX 160535
FFWOHX
TNC147-160830-
/O.NEW.KOHX.FF.W.0042.110716T0535Z-110716T0830Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE NASHVILLE TN
1235 AM CDT SAT JUL 16 2011
THE NATIONAL WEATHER SERVICE IN NASHVILLE HAS ISSUED A
* FLASH FLOOD WARNING FOR...
ROBERTSON COUNTY IN MIDDLE TENNESSEE...
THIS INCLUDES THE CITY OF SPRINGFIELD...
* UNTIL 330 AM CDT
* AT 1229 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
VERY HEAVY RAINFALL RESULTING FROM NEARLY STATIONARY THUNDERSTORMS
THAT MAY RESULT IN FLASH FLOODING.
* LOCATIONS IN THE WARNING INCLUDE GREENBRIER, CROSS PLAINS, AND
ADAMS.
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. MOVE
UP TO HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS
SUBJECT TO FLOODING WHEN WATER BEGINS RISING.
&&
LAT...LON 3665 8657 3643 8675 3639 8692 3646 8712
3666 8708 3666 8659
$$
ROSE1 follow-up statement
149
WGUS74 KOHX 160718
FFSOHX
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE NASHVILLE TN
218 AM CDT SAT JUL 16 2011
TNC147-160830-
/O.CON.KOHX.FF.W.0042.000000T0000Z-110716T0830Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
ROBERTSON TN-
218 AM CDT SAT JUL 16 2011
...FLASH FLOOD WARNING REMAINS IN EFFECT FOR ROBERTSON COUNTY UNTIL
330 AM CDT...
AS OF 217 AM CDT...EARLIER HEAVY RAINFALL HAD WEAKENED CONSIDERABLY
AND MOVED OUT OF THE WARNED AREA. STILL, RUNOFF FROM TONIGHT'S
EXCESSIVE RAINFALL MAY CAUSE FLASH FLOODING TO OCCUR. SOME LOCATIONS
THAT COULD EXPERIENCE FLASH FLOODING INCLUDE SPRINGFIELD, CROSS
PLAINS, ADAMS, AND GREENBRIER.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY.
&&
LAT...LON 3665 8657 3643 8675 3639 8692 3646 8712
3666 8708 3666 8659
$$
ROSENearby
Flash Flood Warnings in Tennessee, 2011Every 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.