Alert archive / Tennessee / Flash Flood Warnings in 2011

Flash Flood Warning 8, NWS Nashville, TN

February 28, 20116 counties in Tennessee

NWS Nashville, TN issued this flash flood warning at Feb 28, 2011, 5:55 AM CST for 6 counties in Tennessee. It was in force for 3 hr. 3 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: Feb 28, 2011, 5:55 AM CST (11:55 UTC)
Expired: Feb 28, 2011, 9:00 AM CST
In force: 3 hr
Issued by: NWS Nashville, TN
Area: Storm-based polygon
Flood severity: None

Counties Benton County, TN, Houston County, TN, Humphreys County, TN, Montgomery County, TN, Robertson County, TN, Stewart County, TN

What was reported inside it

Time	Report	Where	Remark
Feb 28, 6:20 AM CST	FLOOD	6 Nne Camden, TN	PUBLIC REPORTED FLOODING OF LOWER BIG SANDY ROAD BETWEEN BIG SANDY AND HWY 641.
Feb 28, 6:50 AM CST	FLOOD	7 W Clarksville, TN	AMATEUR RADIO OPERATOR REPORTED 4 TO 6 INCHES WATER AT THE INTERSECTION OF JIM TAYLOR ROAD AND LAKE ROAD.
Feb 28, 7:30 AM CST	FLOOD	11 Nw Springfield, TN	ROBERTSON COUNTY S.O. REPORTS HWY 41N FLOODED NEAR THE TOWN OF ADAMS.

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 00:00Z, 11.9 hours before the alert went out and 113 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: 184 J/kg
Mixed-layer CIN: -38 J/kg
Mixed-layer LCL: 1385 m above ground
0-6 km bulk shear: 63 kt
0-1 km storm-relative helicity: 245 m²/s²
0-3 km storm-relative helicity: 304 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 1.2

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

964 
WGUS54 KOHX 281155
FFWOHX
TNC005-083-085-125-147-161-281445-
/O.NEW.KOHX.FF.W.0008.110228T1155Z-110228T1445Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE NASHVILLE TN
555 AM CST MON FEB 28 2011

THE NATIONAL WEATHER SERVICE IN NASHVILLE HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  NORTHERN BENTON COUNTY IN MIDDLE TENNESSEE...
  HOUSTON COUNTY IN MIDDLE TENNESSEE...
  THIS INCLUDES THE CITY OF ERIN...
  NORTHWESTERN HUMPHREYS COUNTY IN MIDDLE TENNESSEE...
  MONTGOMERY COUNTY IN MIDDLE TENNESSEE...
  THIS INCLUDES THE CITY OF CLARKSVILLE...
  NORTHERN ROBERTSON COUNTY IN MIDDLE TENNESSEE...
  STEWART COUNTY IN MIDDLE TENNESSEE...
  THIS INCLUDES THE CITY OF DOVER...

* UNTIL 845 AM CST

* AT 551 AM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED   
  PERSISTENT TRAINING OF THUNDERSTORMS ACROSS NORTHWESTERN MIDDLE    
  TENNESSEE AHEAD OF A SLOW-MOVING COLD FRONT. MANY LOCATIONS ARE    
  RECEIVING 1 TO 2 INCHES OF RAIN PER HOUR, WITH ADDITIONAL HEAVY    
  RAINFALL STILL EXPECTED.

* LOCATIONS IN THE WARNING AREA INCLUDE CLARKSVILLE, DOVER, ERIN,    
  AND BIG SANDY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...HIGHWAYS AND UNDERPASSES. ADDITIONALLY...COUNTRY
ROADS AND FARMLANDS ALONG THE BANKS OF CREEKS...STREAMS AND OTHER LOW
LYING AREAS ARE SUBJECT TO FLOODING.

&&

LAT...LON 3667 8787 3665 8785 3665 8658 3633 8743
      3634 8751 3630 8751 3603 8821 3613 8821
      3625 8810 3636 8810 3637 8800 3643 8805
      3668 8807

$$

ROSE

3 follow-up statements

645 
WGUS74 KOHX 281246
FFSOHX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE NASHVILLE TN
646 AM CST MON FEB 28 2011

TNC005-083-085-125-147-161-281500-
/O.CON.KOHX.FF.W.0008.000000T0000Z-110228T1500Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
HOUSTON TN-MONTGOMERY TN-ROBERTSON TN-STEWART TN-BENTON TN-
HUMPHREYS TN-
646 AM CST MON FEB 28 2011

...FLASH FLOOD WARNING REMAINS IN EFFECT FOR NORTHWESTERN
HUMPHREYS...NORTHERN BENTON...STEWART...NORTHERN ROBERTSON...
MONTGOMERY AND HOUSTON COUNTIES UNTIL 900 AM CST...

AT 642 AM CST...THE PUBLIC REPORTED FLOODING ON HWY 641 IN BENTON 
COUNTY.

RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
OCCUR. SOME LOCATIONS THAT MAY EXPERIENCE FLASH FLOODING INCLUDE...
CLARKSVILLE...DOVER...ERIN...GUTHRIE AND TENNESSEE RIDGE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

EXCESSIVE RUNOFF FROM THESE STORMS WILL CAUSE FLOODING OF SMALL 
CREEKS AND STREAMS...HIGHWAYS AND UNDERPASSES. 
ADDITIONALLY...COUNTRY ROADS AND FARMLANDS ALONG THE BANKS OF 
CREEKS...STREAMS AND OTHER LOW LYING AREAS ARE ALSO SUBJECT TO 
FLOODING.

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 3667 8787 3665 8785 3665 8658 3633 8743
      3634 8751 3630 8751 3603 8821 3613 8821
      3625 8810 3636 8810 3637 8800 3643 8805
      3668 8807

$$
JOHNSTONE

449 
WGUS74 KOHX 281254
FFSOHX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE NASHVILLE TN
654 AM CST MON FEB 28 2011

TNC005-083-085-125-147-161-281500-
/O.CON.KOHX.FF.W.0008.000000T0000Z-110228T1500Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
HOUSTON TN-MONTGOMERY TN-ROBERTSON TN-STEWART TN-BENTON TN-
HUMPHREYS TN-
654 AM CST MON FEB 28 2011

...FLASH FLOOD WARNING REMAINS IN EFFECT FOR NORTHWESTERN
HUMPHREYS...NORTHERN BENTON...STEWART...NORTHERN ROBERTSON...
MONTGOMERY AND HOUSTON COUNTIES UNTIL 900 AM CST...

AT 652 AM CST...THE PUBLIC REPORTED THUNDERSTORMS WITH VERY HEAVY 
RAINFALL ACROSS THE WARNED AREA.

RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLASH FLOODING INCLUDE...
CLARKSVILLE...DOVER...ERIN...GUTHRIE AND TENNESSEE RIDGE.

HIGHWAY 641 WAS REPORTED FLOODED NEAR LITTLE BIRDSONG CREEK. 
ALSO...LOWER BIG SANDY ROAD WAS REPORTED FLOODED BETWEEN BIG SANDY 
AND HIGHWAY 641.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

EXCESSIVE RUNOFF FROM THIS STORM WILL CAUSE FLOODING OF SMALL CREEKS
AND STREAMS...HIGHWAYS AND UNDERPASSES. ADDITIONALLY...COUNTRY ROADS
AND FARMLANDS ALONG THE BANKS OF CREEKS...STREAMS AND OTHER LOW LYING
AREAS ARE ALSO SUBJECT TO FLOODING.

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 3667 8787 3665 8785 3665 8658 3633 8743
      3634 8751 3630 8751 3603 8821 3613 8821
      3625 8810 3636 8810 3637 8800 3643 8805
      3668 8807

$$

JLM

997 
WGUS74 KOHX 281348
FFSOHX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE NASHVILLE TN
748 AM CST MON FEB 28 2011

TNC005-083-085-125-147-161-281500-
/O.CON.KOHX.FF.W.0008.000000T0000Z-110228T1500Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
HOUSTON TN-MONTGOMERY TN-ROBERTSON TN-STEWART TN-BENTON TN-
HUMPHREYS TN-
748 AM CST MON FEB 28 2011

...FLASH FLOOD WARNING REMAINS IN EFFECT FOR NORTHWESTERN
HUMPHREYS...NORTHERN BENTON...STEWART...NORTHERN ROBERTSON...
MONTGOMERY AND HOUSTON COUNTIES UNTIL 900 AM CST...

AT 744 AM CST...HEAVY RAINFALL CONTINUED TO FALL ACROSS THE WARNED 
AREA. APPROXIMATELY 1 TO 2 INCHES OF RAIN HAS FALLEN AND AN 
ADDITIONAL INCH OR TWO CAN BE EXPECTED WITH RAINFALL RATES EXCEEDING 
3 INCHES PER HOUR.

RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLASH FLOODING INCLUDE...
CLARKSVILLE...DOVER...ERIN...GUTHRIE AND TENNESSEE RIDGE.

HIGHWAY 641 WAS REPORTED FLOODED NEAR LITTLE BIRDSONG CREEK. 
ALSO...LOWER BIG SANDY ROAD WAS REPORTED FLOODED BETWEEN BIG SANDY 
AND HIGHWAY 641.

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. WHEN ENCOUNTERING FLOODED ROADS MAKE THE SMART CHOICE...TURN 
AROUND...DONT DROWN.

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 3667 8787 3665 8785 3665 8658 3633 8743
      3634 8751 3630 8751 3603 8821 3613 8821
      3625 8810 3636 8810 3637 8800 3643 8805
      3668 8807

$$

LAROSA

The office that day

Everything else NWS Nashville, TN issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Feb 28, 5:16 AM CST	Wind Advisory	OHX	Bedford, Cannon, Clay, Coffee, Cumberland, Davidson and 21 more	13 hr
Feb 28, 6:10 AM CST	Severe Thunderstorm Warning	OHX	Benton, Dickson, Houston, Humphreys	35 min
Feb 28, 6:35 AM CST	Severe Thunderstorm Warning	OHX	Cheatham, Dickson, Houston, Montgomery	25 min
Feb 28, 6:52 AM CST	Flash Flood Warning	OHX	Benton, Cheatham, Davidson, Dickson, Houston, Humphreys and 4 more	5 hr
Feb 28, 6:58 AM CST	Tornado Warning	OHX	Hickman, Lewis, Perry	32 min
Feb 28, 7:00 AM CST	Severe Thunderstorm Warning	OHX	Cheatham, Dickson, Montgomery, Robertson	30 min
Feb 28, 7:33 AM CST	Flash Flood Warning	OHX	Benton, Cheatham, Dickson, Hickman, Humphreys, Lewis and 3 more	6 hr
Feb 28, 7:57 AM CST	Flash Flood Warning	OHX	Cheatham, Davidson, Sumner, Williamson	6 hr
Feb 28, 8:12 AM CST	Flash Flood Watch	OHX	Bedford, Cannon, Clay, Coffee, Cumberland, DeKalb and 20 more	7 hr
Feb 28, 8:12 AM CST	Flash Flood Warning	OHX	Davidson, Macon, Rutherford, Smith, Sumner, Trousdale and 1 more	6 hr
Feb 28, 8:20 AM CST	Severe Thunderstorm Warning	OHX	Giles, Lawrence, Marshall, Maury	55 min
Feb 28, 8:36 AM CST	Flash Flood Warning	OHX	Clay, Fentress, Jackson, Macon, Overton, Pickett and 2 more	6 hr
Feb 28, 8:43 AM CST	Flash Flood Warning	OHX	Benton, Houston, Humphreys, Montgomery, Robertson, Stewart	3 hr
Feb 28, 9:01 AM CST	Flash Flood Warning	OHX	Giles, Hickman, Lawrence, Lewis, Marshall, Maury and 3 more	6 hr
Feb 28, 9:23 AM CST	Severe Thunderstorm Warning	OHX	Bedford, Cannon, Coffee, Rutherford, Warren	25 min
Feb 28, 9:30 AM CST	Tornado Warning	OHX	Bedford, Coffee	15 min
Feb 28, 10:19 AM CST	Severe Thunderstorm Warning	OHX	Cumberland, Van Buren, White	26 min
Feb 28, 11:12 AM CST	Areal Flood Advisory	OHX	Bedford, Cannon, Coffee, Cumberland, DeKalb, Grundy and 5 more	6 hr
Feb 28, 11:31 AM CST	Severe Thunderstorm Warning	OHX	Cannon, Rutherford, Williamson, Wilson	44 min
Feb 28, 11:47 AM CST	Tornado Warning	OHX	Cannon, DeKalb, Rutherford	28 min
Feb 28, 11:50 AM CST	Areal Flood Advisory	OHX	Benton, Cheatham, Davidson, Dickson, Houston, Humphreys and 5 more	3 hr
Feb 28, 11:56 AM CST	Severe Thunderstorm Warning	OHX	Bedford, Marshall	34 min
Feb 28, 12:18 PM CST	Tornado Warning	OHX	Coffee, Grundy, Van Buren, Warren	27 min
Feb 28, 12:49 PM CST	Severe Thunderstorm Warning	OHX	Grundy	14 min
Feb 28, 1:58 PM CST	River Flood Warning	OHX	Davidson	59 min
Feb 28, 2:08 PM CST	River Flood Advisory	OHX	Davidson	10 hr
Feb 28, 2:08 PM CST	River Flood Advisory	OHX	Davidson	10 hr
Feb 28, 2:08 PM CST	River Flood Advisory	OHX	Davidson	117 min

Nearby

Flash Flood Warnings in Tennessee, 2011 Every 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.