Alert archive / Tennessee / Flash Flood Warnings in 2011
Flash Flood Warning 35, NWS Nashville, TN
NWS Nashville, TN issued this flash flood warning at Jul 7, 2011, 3:26 PM CDT for Davidson County, Williamson County, Tennessee. It was in force for 2 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
- Jul 7, 2011, 3:26 PM CDT (20:26 UTC)
- Expired
- Jul 7, 2011, 5:30 PM CDT
- In force
- 2 hr
- Issued by
- NWS Nashville, TN
- Area
- Storm-based polygon
- Flood severity
- None
Counties Davidson County, TN, Williamson County, TN
The radar
The Nashville radar (KOHX), 49 km from the middle of the area, began a volume at 20:26 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 7, 3:30 PM CDT | FLASH FLOOD | 2 Ne Franklin, TN | SEVERAL CARS TRAPPED ON WATER-COVERED ROADS INCLUDING COOL SPRINGS BLVD, BAKERS BRIDGE, AND DUKE DRIVE. |
| Jul 7, 4:56 PM CDT | FLOOD | 2 Ne Franklin, TN | 2 TO 3 FEET OF WATER COVERING ROADS IN AND AROUND THE COOL SPRINGS MALL AREA. ROADS ARE IMPASSABLE. |
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, 8.4 hours before the alert went out and 37 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
- 1273 J/kg
- Mixed-layer CIN
- -36 J/kg
- Mixed-layer LCL
- 897 m above ground
- 0-6 km bulk shear
- 13 kt
- 0-1 km storm-relative helicity
- 7 m²/s²
- 0-3 km storm-relative helicity
- 55 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
472
WGUS54 KOHX 072026
FFWOHX
TNC037-187-072230-
/O.NEW.KOHX.FF.W.0035.110707T2026Z-110707T2230Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE NASHVILLE TN
326 PM CDT THU JUL 7 2011
THE NATIONAL WEATHER SERVICE IN NASHVILLE HAS ISSUED A
* FLASH FLOOD WARNING FOR...
SOUTHERN DAVIDSON COUNTY IN MIDDLE TENNESSEE...
WILLIAMSON COUNTY IN MIDDLE TENNESSEE...
THIS INCLUDES THE CITY OF FRANKLIN...
* UNTIL 530 PM CDT
* AT 324 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
FLASH FLOODING FROM A THUNDERSTORM OVER THE WARNED AREA.
* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO FAIRVIEW...
NOLENSVILLE...FOREST HILLS...BRENTWOOD...AND COOL SPRINGS.
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. MOVE TO HIGHER GROUND.
A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING.
IF YOU ARE IN THE WARNING AREA MOVE TO HIGHER GROUND IMMEDIATELY.
RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE IMMEDIATE
PRECAUTIONS TO PROTECT LIFE AND PROPERTY. DO NOT ATTEMPT TO CROSS
SWIFTLY FLOWING WATERS OR WATERS OF UNKNOWN DEPTH BY FOOT OR BY
AUTOMOBILE.
&&
LAT...LON 3606 8655 3597 8662 3580 8661 3576 8670
3572 8669 3574 8687 3576 8692 3578 8693
3577 8693 3579 8695 3578 8696 3585 8721
3605 8717 3605 8704 3607 8704
$$
071 follow-up statement
640
WGUS74 KOHX 072129
FFSOHX
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE NASHVILLE TN
429 PM CDT THU JUL 7 2011
TNC037-072138-
/O.CAN.KOHX.FF.W.0035.000000T0000Z-110707T2230Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
DAVIDSON TN-
429 PM CDT THU JUL 7 2011
...THE FLASH FLOOD WARNING THAT WAS IN EFFECT FOR SOUTHERN DAVIDSON
COUNTY IS CANCELLED...
EXCESS RUNOFF FROM HEAVY RAIN HAS ENDED OVER THE WARNED AREA.
STREAMS AND CREEKS IN THE WARNED AREA HAVE RECEDED OR WERE BEGINNING
TO RECEDE...ENDING THE FLOOD THREAT. IF FLOODING HAS BEEN OBSERVED...
PLEASE REPORT IT TO YOUR LOCAL LAW ENFORCEMENT AGENCY.
LAT...LON 3601 8675 3599 8668 3597 8662 3592 8662
3581 8662 3576 8670 3583 8704 3598 8704
3605 8692 3604 8678 3603 8675
$$
TNC187-072230-
/O.CON.KOHX.FF.W.0035.000000T0000Z-110707T2230Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
WILLIAMSON TN-
429 PM CDT THU JUL 7 2011
...FLASH FLOOD WARNING REMAINS IN EFFECT FOR WILLIAMSON COUNTY UNTIL
530 PM CDT...
AT 423 PM CDT...LOCAL LAW ENFORCEMENT OFFICIALS REPORTED FLOODING
FROM THUNDERSTORMS THAT EARLIER PRODUCED VERY HEAVY RAINFALL ACROSS
THE WARNED AREA. RADAR ESTIMATES INDICATE 2 TO 4 INCHES OF RAIN FELL
ACROSS PORTIONS OF FRANKLIN AND BRENTWOOD IN THE PAST 2 HOURS.
RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
CONTINUE. SOME LOCATIONS THAT WILL EXPERIENCE FLASH FLOODING
INCLUDE...FRANKLIN...BRENTWOOD AND NOLENSVILLE.
AT 330 PM CDT...LOCAL LAW ENFORCEMENT REPORTED FLASH FLOODING ACROSS
SEVERAL ROADS IN NORTHERN WILLIAMSON COUNTY...INCLUDING COOL SPRINGS
BLVD...BAKERS BRIDGE...MALLORY LANE...AND DUKE DRIVE.
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. REMEMBER...TURN AROUND DONT DROWN.
A FLASH FLOOD WARNING MEANS THAT FLASH FLOODING IS IMMINENT OR
OCCURRING. IF YOU ARE IN THE WARNING AREA...MOVE TO HIGHER GROUND
IMMEDIATELY. RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE
IMMEDIATE PRECAUTIONS TO PROTECT LIFE AND PROPERTY. DO NOT ATTEMPT TO
CROSS SWIFTLY FLOWING WATERS OR WATERS OF UNKNOWN DEPTH BY FOOT OR BY
AUTOMOBILE.
&&
LAT...LON 3601 8675 3599 8668 3597 8662 3592 8662
3581 8662 3576 8670 3583 8704 3598 8704
3605 8692 3604 8678 3603 8675
$$
SHAMBURGERThe office that day
Everything else NWS Nashville, TN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 7, 12:51 PM CDT | Special Weather Statement | OHX | Bedford, Coffee, Giles, Grundy, Lawrence, Lewis and 5 more | 54 min |
| Jul 7, 4:54 PM CDT | Flash Flood Warning | OHX | Cumberland, Putnam | 2 hr |
| Jul 7, 5:33 PM CDT | Areal Flood Advisory | OHX | Williamson | 117 min |
Nearby
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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.