Alert archive / Tennessee / Flash Flood Warnings in 2011

Flash Flood Warning 21, NWS Nashville, TN

April 27, 20115 counties in Tennessee

NWS Nashville, TN issued this flash flood warning at Apr 27, 2011, 5:06 AM CDT for 5 counties in Tennessee. It was in force for 16 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: Apr 27, 2011, 5:06 AM CDT (10:06 UTC)
Expired: Apr 27, 2011, 9:00 PM CDT
In force: 16 hr
Issued by: NWS Nashville, TN
Area: Storm-based polygon
Flood severity: None

Counties Giles County, TN, Lawrence County, TN, Lewis County, TN, Maury County, TN, Wayne County, TN

The radar

The Nashville radar (KOHX), 136 km from the middle of the area, began a volume at 10:08 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
Apr 27, 11:13 AM CDT	FLASH FLOOD	3 N Lawrenceburg, TN	NORTHBOUND HIGHWAY 43 BLOCKED BY WATER NORTH OF LAWRENCEBURG.
Apr 27, 11:51 AM CDT	FLASH FLOOD	7 S Lawrenceburg, TN	PEOPLE TRAPPED IN A HOME BY FLOOD WATERS ALONG HWY 98 IN THE CENTERPOINT COMMUNITY.
Apr 27, 5:10 PM CDT	FLOOD	Lawrenceburg, TN	HIGHWAY 64 FLOODED NEAR LAWRENCEBURG.

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, 10.1 hours before the alert went out and 125 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: 1852 J/kg
Mixed-layer CIN: -8 J/kg
Mixed-layer LCL: 1222 m above ground
0-6 km bulk shear: 47 kt
0-1 km storm-relative helicity: 144 m²/s²
0-3 km storm-relative helicity: 169 m²/s²
Significant tornado parameter: 1.3
Supercell composite: 8.9

Open this sounding in Storm Lab

The text

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

685 
WGUS54 KOHX 271006
FFWOHX
TNC055-099-101-119-181-271400-
/O.NEW.KOHX.FF.W.0021.110427T1006Z-110427T1400Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE NASHVILLE TN
506 AM CDT WED APR 27 2011

THE NATIONAL WEATHER SERVICE IN NASHVILLE HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  WESTERN GILES COUNTY IN MIDDLE TENNESSEE...
  LAWRENCE COUNTY IN MIDDLE TENNESSEE...
  THIS INCLUDES THE CITY OF LAWRENCEBURG...
  LEWIS COUNTY IN MIDDLE TENNESSEE...
  THIS INCLUDES THE CITY OF HOHENWALD...
  SOUTHERN MAURY COUNTY IN MIDDLE TENNESSEE...
  WAYNE COUNTY IN MIDDLE TENNESSEE...
  THIS INCLUDES THE CITY OF WAYNESBORO...

* UNTIL 900 AM CDT

* AT 459 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED   
  FLASH FLOODING FROM THUNDERSTORMS OVER THE WARNED AREA. 1 TO 3 
  INCHES OF RAIN HAS FALLEN...WITH ANOTHER 1 TO 3 INCHES EXPECTED 
  THIS MORNING. THIS WILL CAUSE STREET FLOODING...RAPID RISES ON 
  SMALL STREAMS...AND FLOODING OF LOW LYING AREAS. 

* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO MOUNT      
  PLEASANT...WAYNESBORO AND LAWRENCEBURG.

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 3501 8797 3552 8770 3552 8769 3556 8768
      3557 8765 3557 8690 3500 8712

$$

13

3 follow-up statements

753 
WGUS74 KOHX 271144
FFSOHX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE NASHVILLE TN
644 AM CDT WED APR 27 2011

TNC055-099-101-119-181-271400-
/O.CON.KOHX.FF.W.0021.000000T0000Z-110427T1400Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
MAURY TN-LEWIS TN-WAYNE TN-LAWRENCE TN-GILES TN-
644 AM CDT WED APR 27 2011

...FLASH FLOOD WARNING REMAINS IN EFFECT FOR WESTERN GILES...
LAWRENCE...WAYNE...LEWIS AND SOUTHERN MAURY COUNTIES UNTIL 900 AM
CDT...

AT 643 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
1 TO 3 INCHES OF RAIN HAD FALLEN WITH WITH THE THUNDERSTORMS THIS 
MORNING. RAINFALL HAS TAPERED OFF FOR A WHILE...BUT SOME LOCAL 
FLOODING WILL REMAIN.

RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLASH FLOODING INCLUDE...
HOHENWALD...LAWRENCEBURG...WAYNESBORO...COLLINWOOD...LORETTO AND
MOUNT PLEASANT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

EXCESSIVE RUNOFF FROM THIS STORM WILL CAUSE FLOODING OF SMALL CREEKS
AND STREAMS...COUNTRY ROADS...NORMALLY DRY WASHES... AS WELL AS
FARMLAND ALONG THE BANKS OF CREEKS AND STREAMS.

&&

LAT...LON 3501 8797 3552 8770 3552 8769 3556 8768
      3557 8765 3557 8690 3500 8712

$$

13

462 
WGUS54 KOHX 271351
FFWOHX
TNC055-099-101-119-181-272000-
/O.EXT.KOHX.FF.W.0021.000000T0000Z-110427T2000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE NASHVILLE TN
851 AM CDT WED APR 27 2011

THE NATIONAL WEATHER SERVICE IN NASHVILLE HAS EXTENDED THE

* FLASH FLOOD WARNING FOR...
  WESTERN GILES COUNTY IN MIDDLE TENNESSEE...
  LAWRENCE COUNTY IN MIDDLE TENNESSEE...
  THIS INCLUDES THE CITY OF LAWRENCEBURG...
  LEWIS COUNTY IN MIDDLE TENNESSEE...
  THIS INCLUDES THE CITY OF HOHENWALD...
  SOUTHERN MAURY COUNTY IN MIDDLE TENNESSEE...
  WAYNE COUNTY IN MIDDLE TENNESSEE...
  THIS INCLUDES THE CITY OF WAYNESBORO...

* UNTIL 300 PM CDT WEDNESDAY

* AT 847 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED   
  POSSIBLE FLASH FLOODING FROM THUNDERSTORMS MOVING INTO THE WARNED  
  AREA.

* 1 TO 3 INCHES OF RAIN HAS FALLEN OVERNIGHT...AND 2 TO LOCALLY 4    
  INCHES MAY BE POSSIBLE THROUGH THIS MORNING. 

SOME LOCATIONS THAT WILL EXPERIENCE FLASH FLOODING INCLUDE... 
HOHENWALD...LAWRENCEBURG...WAYNESBORO...COLLINWOOD...LORETTO AND 
MOUNT PLEASANT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING. 
MOST FLOOD DEATHS OCCUR IN AUTOMOBILES. NEVER DRIVE YOUR VEHICLE 
INTO AREAS WHERE THE WATER COVERS THE ROADWAY. FLOOD WATERS ARE 
USUALLY DEEPER THAN THEY APPEAR. WHEN ENCOUNTERING FLOODED ROADS 
MAKE THE SMART CHOICE...TURN AROUND...DONT DROWN.

&&

LAT...LON 3501 8797 3552 8770 3552 8769 3556 8768
      3557 8765 3557 8690 3500 8712

$$

LAROSA

051 
WGUS54 KOHX 271946
FFWOHX
TNC055-099-101-119-181-280200-
/O.EXT.KOHX.FF.W.0021.000000T0000Z-110428T0200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE NASHVILLE TN
246 PM CDT WED APR 27 2011

THE NATIONAL WEATHER SERVICE IN NASHVILLE HAS EXTENDED THE

* FLASH FLOOD WARNING FOR...
  WESTERN GILES COUNTY IN MIDDLE TENNESSEE...
  LAWRENCE COUNTY IN MIDDLE TENNESSEE...
  THIS INCLUDES THE CITY OF LAWRENCEBURG...
  LEWIS COUNTY IN MIDDLE TENNESSEE...
  THIS INCLUDES THE CITY OF HOHENWALD...
  SOUTHERN MAURY COUNTY IN MIDDLE TENNESSEE...
  WAYNE COUNTY IN MIDDLE TENNESSEE...
  THIS INCLUDES THE CITY OF WAYNESBORO...

* UNTIL 900 PM CDT

* AT 239 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED   
  SHOWERS AND THUNDERSTORMS ARE CONTINUING TO MOVE THROUGH THE       
  WARNED AREA.

* THESE STORMS MAY PRODUCE BRIEF HEAVY RAINFALL WHICH WOULD LEAD TO  
  LOCALIZED FLASH FLOODING.

SOME LOCATIONS THAT WILL EXPERIENCE FLASH FLOODING INCLUDE... 
HOHENWALD...LAWRENCEBURG...WAYNESBORO...COLLINWOOD...LORETTO AND 
MOUNT PLEASANT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING. 
MOST FLOOD DEATHS OCCUR IN AUTOMOBILES. NEVER DRIVE YOUR VEHICLE 
INTO AREAS WHERE THE WATER COVERS THE ROADWAY. FLOOD WATERS ARE 
USUALLY DEEPER THAN THEY APPEAR. WHEN ENCOUNTERING FLOODED ROADS 
MAKE THE SMART CHOICE...TURN AROUND...DONT DROWN.

&&

LAT...LON 3501 8797 3552 8770 3552 8769 3556 8768
      3557 8765 3557 8690 3500 8712

$$

LAROSA

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 26, 9:31 PM CDT	Tornado Warning	OHX	Benton, Humphreys, Perry	59 min
Apr 26, 9:47 PM CDT	River Flood Advisory	OHX	Lawrence	9 hr
Apr 26, 9:55 PM CDT	Tornado Warning	OHX	Hickman, Perry	50 min
Apr 26, 10:16 PM CDT	Tornado Warning	OHX	Hickman, Lewis, Perry, Wayne	59 min
Apr 26, 10:27 PM CDT	Severe Thunderstorm Warning	OHX	Benton, Dickson, Hickman, Houston, Humphreys, Perry and 1 more	33 min
Apr 26, 10:38 PM CDT	Tornado Warning	OHX	Hickman, Perry	37 min
Apr 26, 10:48 PM CDT	Tornado Warning	OHX	Dickson, Hickman, Houston, Humphreys	27 min
Apr 26, 11:04 PM CDT	Severe Thunderstorm Warning	OHX	Benton, Hickman, Humphreys, Perry	41 min
Apr 26, 11:09 PM CDT	Flash Flood Warning	OHX	Perry	3 hr
Apr 26, 11:14 PM CDT	Severe Thunderstorm Warning	OHX	Dickson, Hickman, Humphreys, Perry	46 min
Apr 26, 11:18 PM CDT	Severe Thunderstorm Warning	OHX	Cheatham, Dickson, Houston, Humphreys, Montgomery	42 min
Apr 26, 11:22 PM CDT	Tornado Warning	OHX	Dickson, Houston, Montgomery	23 min
Apr 26, 11:31 PM CDT	Tornado Warning	OHX	Dickson, Montgomery	29 min
Apr 26, 11:42 PM CDT	Severe Thunderstorm Warning	OHX	Benton, Dickson, Hickman, Humphreys	27 min
Apr 26, 11:53 PM CDT	Severe Thunderstorm Warning	OHX	Cheatham, Dickson, Houston, Humphreys, Montgomery, Robertson	55 min
Apr 27, 12:42 AM CDT	Severe Thunderstorm Warning	OHX	Rutherford	16 min
Apr 27, 12:58 AM CDT	Areal Flood Warning	OHX	Benton, Cheatham, Dickson, Hickman, Houston, Humphreys and 4 more	20 hr
Apr 27, 1:43 AM CDT	Severe Thunderstorm Warning	OHX	Benton, Hickman, Humphreys, Perry	32 min
Apr 27, 1:46 AM CDT	Tornado Warning	OHX	Hickman, Humphreys, Perry	15 min
Apr 27, 2:18 AM CDT	Flash Flood Warning	OHX	Benton, Cheatham, Dickson, Hickman, Houston, Humphreys and 4 more	4 hr
Apr 27, 2:27 AM CDT	River Flood Warning	OHX	Montgomery, Robertson	57 hr
Apr 27, 4:07 AM CDT	Severe Thunderstorm Warning	OHX	Wayne	23 min
Apr 27, 4:11 AM CDT	Severe Thunderstorm Warning	OHX	Wayne	34 min
Apr 27, 4:52 AM CDT	Flash Flood Warning	OHX	Benton, Cheatham, Dickson, Hickman, Houston, Humphreys and 6 more	3 hr
Apr 27, 5:02 AM CDT	Flash Flood Warning	OHX	Cheatham, Davidson, Dickson, Hickman, Lewis, Maury and 5 more	16 hr
Apr 27, 5:10 AM CDT	Severe Thunderstorm Warning	OHX	Giles, Marshall, Maury	35 min
Apr 27, 5:16 AM CDT	Severe Thunderstorm Warning	OHX	Marshall, Maury, Rutherford, Williamson	29 min
Apr 27, 5:23 AM CDT	Severe Thunderstorm Warning	OHX	Giles	22 min
Apr 27, 5:28 AM CDT	River Flood Warning	OHX	Davidson	12 hr
Apr 27, 5:35 AM CDT	Severe Thunderstorm Warning	OHX	Bedford, Marshall, Rutherford	25 min
Apr 27, 5:38 AM CDT	Tornado Warning	OHX	Bedford, Marshall, Rutherford, Williamson	37 min
Apr 27, 5:54 AM CDT	River Flood Warning	OHX	Cheatham	27 hr
Apr 27, 5:54 AM CDT	River Flood Warning	OHX	Davidson, Williamson	15 hr
Apr 27, 5:54 AM CDT	River Flood Warning	OHX	Williamson	15 hr
Apr 27, 6:00 AM CDT	Tornado Warning	OHX	Cannon, DeKalb, Rutherford, Smith, Wilson	30 min
Apr 27, 6:06 AM CDT	Tornado Warning	OHX	Bedford, Coffee, Grundy	24 min
Apr 27, 6:18 AM CDT	Tornado Warning	OHX	Jackson, Smith, Wilson	27 min
Apr 27, 6:27 AM CDT	Severe Thunderstorm Warning	OHX	Clay, Jackson, Macon	18 min
Apr 27, 6:31 AM CDT	Tornado Warning	OHX	Coffee, Grundy, Warren	29 min
Apr 27, 6:35 AM CDT	Tornado Warning	OHX	Clay, Jackson, Macon, Overton, Pickett, Smith	44 min
Apr 27, 6:38 AM CDT	Tornado Warning	OHX	Jackson, Overton, Putnam	37 min
Apr 27, 6:42 AM CDT	Tornado Warning	OHX	DeKalb, Van Buren, Warren	33 min
Apr 27, 6:53 AM CDT	Tornado Warning	OHX	Cumberland, Grundy, Van Buren, Warren, White	52 min
Apr 27, 6:59 AM CDT	Tornado Warning	OHX	Fentress, Overton, Pickett	31 min
Apr 27, 7:22 AM CDT	Severe Thunderstorm Warning	OHX	Cumberland, Fentress, Overton, Putnam, White	23 min
Apr 27, 7:26 AM CDT	Tornado Warning	OHX	Cumberland, Van Buren, White	29 min
Apr 27, 7:54 AM CDT	Severe Thunderstorm Warning	OHX	Cumberland, Fentress	36 min
Apr 27, 9:17 AM CDT	River Flood Warning	OHX	Bedford	30 hr
Apr 27, 10:41 AM CDT	Tornado Warning	OHX	Giles, Lawrence, Marshall, Maury	34 min
Apr 27, 11:06 AM CDT	Tornado Warning	OHX	Giles, Lawrence	24 min
Apr 27, 11:06 AM CDT	Tornado Warning	OHX	Giles, Lawrence	24 min
Apr 27, 11:14 AM CDT	Severe Thunderstorm Warning	OHX	Bedford, Cannon, Coffee, Giles, Marshall, Rutherford	31 min
Apr 27, 11:19 AM CDT	River Flood Warning	OHX	Hickman	4 days
Apr 27, 11:19 AM CDT	River Flood Warning	OHX	Perry	65 hr
Apr 27, 11:19 AM CDT	River Flood Warning	OHX	Lawrence	25 hr
Apr 27, 11:29 AM CDT	River Flood Advisory	OHX	Bedford, Marshall	34 hr
Apr 27, 11:29 AM CDT	River Flood Advisory	OHX	Maury	68 hr
Apr 27, 11:29 AM CDT	River Flood Advisory	OHX	Humphreys	5 days
Apr 27, 11:29 AM CDT	River Flood Advisory	OHX	Giles	56 hr
Apr 27, 11:29 AM CDT	River Flood Advisory	OHX	Giles	3 days
Apr 27, 11:37 AM CDT	Tornado Warning	OHX	Bedford, Marshall	23 min
Apr 27, 11:51 AM CDT	Tornado Warning	OHX	Bedford, Cannon, Coffee, Rutherford	24 min
Apr 27, 12:03 PM CDT	Flash Flood Warning	OHX	Benton, Cheatham, Dickson, Hickman, Houston, Humphreys and 6 more	9 hr
Apr 27, 12:03 PM CDT	River Flood Warning	OHX	Montgomery	50 hr
Apr 27, 12:06 PM CDT	River Flood Advisory	OHX	Davidson	43 hr
Apr 27, 12:08 PM CDT	Flash Flood Warning	OHX	Bedford, Giles, Marshall	6 hr
Apr 27, 12:23 PM CDT	Areal Flood Warning	OHX	Cheatham, Dickson	24 hr
Apr 27, 12:29 PM CDT	Severe Thunderstorm Warning	OHX	Cannon, Coffee, Cumberland, DeKalb, Grundy, Van Buren and 2 more	46 min
Apr 27, 12:30 PM CDT	Areal Flood Warning	OHX	Stewart	24 hr
Apr 27, 12:37 PM CDT	Tornado Warning	OHX	Coffee, Grundy	38 min
Apr 27, 1:22 PM CDT	Severe Thunderstorm Warning	OHX	Grundy	8 min
Apr 27, 1:22 PM CDT	Tornado Warning	OHX	Grundy	23 min
Apr 27, 1:48 PM CDT	Severe Thunderstorm Warning	OHX	Bedford, Giles, Marshall, Maury	27 min
Apr 27, 2:14 PM CDT	Severe Thunderstorm Warning	OHX	Bedford, Cannon, Marshall, Rutherford	31 min
Apr 27, 2:45 PM CDT	Severe Thunderstorm Warning	OHX	Cannon, DeKalb, Warren, White	30 min
Apr 27, 3:00 PM CDT	Severe Thunderstorm Warning	OHX	Giles, Lawrence, Wayne	30 min
Apr 27, 3:08 PM CDT	Severe Thunderstorm Warning	OHX	DeKalb, Overton, Putnam, White	22 min
Apr 27, 3:13 PM CDT	Severe Thunderstorm Warning	OHX	Bedford, Marshall, Rutherford	32 min
Apr 27, 3:25 PM CDT	Severe Thunderstorm Warning	OHX	Cumberland, Fentress, Overton, Pickett, Putnam, White	50 min
Apr 27, 3:25 PM CDT	Tornado Warning	OHX	Wayne	35 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; radar from the NEXRAD Level II archive.