Alert archive / Tennessee / Flash Flood Warnings in 2016

Flash Flood Warning 9, NWS Nashville, TN

May 11, 2016Macon County, Sumner County, Trousdale County, Tennessee

NWS Nashville, TN issued this flash flood warning at May 11, 2016, 8:41 AM CDT for Macon County, Sumner County, Trousdale County, Tennessee. It was in force for 4 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: May 11, 2016, 8:41 AM CDT (13:41 UTC)
Expired: May 11, 2016, 12:45 PM CDT
In force: 4 hr
Issued by: NWS Nashville, TN
Area: Storm-based polygon
Emergency: Flash flood emergency
Flood severity: None

Counties Macon County, TN, Sumner County, TN, Trousdale County, TN

The radar

The Nashville radar (KOHX), 37 km from the middle of the area, began a volume at 13:41 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
May 11, 10:53 AM CDT	HEAVY RAIN 6.21	7 Wsw Westmoreland, TN	6.21 INCHES OF RAIN SO FAR WITH 0.95 INCHES IN THE LAST 3.5 HOURS.

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, 1.7 hours before the alert went out and 49 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: 1524 J/kg
Mixed-layer CIN: -49 J/kg
Mixed-layer LCL: 790 m above ground
0-6 km bulk shear: 31 kt
0-1 km storm-relative helicity: 269 m²/s²
0-3 km storm-relative helicity: 233 m²/s²
Significant tornado parameter: 1.3
Supercell composite: 6.7

Open this sounding in Storm Lab

The text

As transmitted.

813 
WGUS54 KOHX 111341
FFWOHX
TNC111-165-169-111545-
/O.NEW.KOHX.FF.W.0009.160511T1341Z-160511T1545Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE NASHVILLE TN
841 AM CDT WED MAY 11 2016

...FLASH FLOOD EMERGENCY FOR NORTHERN SUMNER...WESTERN
MACON...AND TROUSDALE COUNTIES...

THE NATIONAL WEATHER SERVICE IN NASHVILLE HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  SUMNER COUNTY IN MIDDLE TENNESSEE...
  WESTERN MACON COUNTY IN MIDDLE TENNESSEE...
  TROUSDALE COUNTY IN MIDDLE TENNESSEE...

* UNTIL 1045 AM CDT

* AT 840 AM CDT...EMERGENCY MANAGEMENT OFFICIALS REPORTED FLASH
  FLOODING CONTINUES ACROSS THE WARNED AREA...WITH WATER RESCUES
  ONGOING AND NUMEROUS ROADS FLOODED AND CLOSED. RAINFALL
  MEASUREMENTS INDICATE 4 TO 7 INCHES OF RAIN HAS FALLEN SO FAR THIS
  MORNING. THUNDERSTORMS CONTINUE TO DEVELOP AND MOVE ACROSS THE
  WARNED AREA...AND AN ADDITIONAL 1 TO 2 INCHES OF RAIN IS POSSIBLE
  THIS MORNING. MAJOR FLASH FLOODING IS LIKELY ALONG BLEDSOE CREEK
  AND GOOSE CREEK.

  THIS IS A FLASH FLOOD EMERGENCY FOR PORTLAND...WESTMORELAND...
  LAFAYETTE...GALLATIN...AND HARTSVILLE. THIS IS A PARTICULARLY
  DANGEROUS SITUATION. SEEK HIGHER GROUND NOW! 

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  GALLATIN...CASTALIAN SPRINGS...LAFAYETTE...HARTSVILLE...WHITE
  HOUSE...WESTMORELAND... PORTLAND...BLEDSOE CREEK STATE
  PARK...COTTONTOWN...BETHPAGE AND OAK GROVE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

MOVE TO HIGHER GROUND NOW. THIS IS AN EXTREMELY DANGEROUS AND
LIFE-THREATENING SITUATION. DO NOT ATTEMPT TO TRAVEL UNLESS YOU ARE
FLEEING AN AREA SUBJECT TO FLOODING OR UNDER AN EVACUATION ORDER.

&&

LAT...LON 3664 8610 3657 8598 3640 8598 3638 8605
      3632 8613 3635 8623 3636 8647 3648 8665
      3655 8663 3660 8658 3665 8651

$$

SHAMBURGER

2 follow-up statements

036 
WGUS74 KOHX 111437
FFSOHX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE NASHVILLE TN
937 AM CDT WED MAY 11 2016

TNC111-165-169-111545-
/O.CON.KOHX.FF.W.0009.000000T0000Z-160511T1545Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
SUMNER TN-MACON TN-TROUSDALE TN-
937 AM CDT WED MAY 11 2016

...THIS IS A FLASH FLOOD EMERGENCY FOR NORTHERN SUMNER...WESTERN
MACON...AND TROUSDALE COUNTIES...

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1045 AM CDT FOR
SUMNER...WESTERN MACON AND TROUSDALE COUNTIES...

AT 930 AM CDT...EMERGENCY MANAGEMENT OFFICIALS REPORTED FLASH
FLOODING CONTINUES ACROSS THE WARNED AREA...WITH WATER RESCUES
ONGOING AND NUMEROUS ROADS FLOODED AND CLOSED. RAINFALL MEASUREMENTS
SHOW AS MUCH AS 7 INCHES OF RAIN HAS FALLEN IN THE WARNED
AREA...WITH AN ADDITIONAL 1 TO 2 INCHES OF RAIN IS POSSIBLE THIS
MORNING. 

MAJOR FLASH FLOODING IS LIKELY ALONG BLEDSOE CREEK NEAR GALLATIN...
THE GOOSE CREEK BASIN NEAR HARTSVILLE...WEST FORK DRAKES CREEK NEAR
PORTLAND...AND SULPHER FORK CREEK NEAR BRACKENTOWN IN SUMNER COUNTY.

THIS IS A FLASH FLOOD EMERGENCY FOR GALLATIN...CASTALIAN SPRINGS...
LAFAYETTE...HARTSVILLE...WHITE HOUSE...WESTMORELAND...PORTLAND...
BLEDSOE CREEK STATE PARK...COTTONTOWN...BETHPAGE AND OAK GROVE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

MOVE TO HIGHER GROUND NOW. THIS IS AN EXTREMELY DANGEROUS AND
LIFE-THREATENING SITUATION. DO NOT ATTEMPT TO TRAVEL UNLESS YOU ARE
FLEEING AN AREA SUBJECT TO FLOODING OR UNDER AN EVACUATION ORDER.

&&

LAT...LON 3664 8610 3657 8598 3640 8598 3638 8605
      3632 8613 3635 8623 3636 8647 3648 8665
      3655 8663 3660 8658 3665 8651

$$

05

387 
WGUS54 KOHX 111536
FFWOHX
TNC111-165-169-111745-
/O.EXT.KOHX.FF.W.0009.000000T0000Z-160511T1745Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE NASHVILLE TN
1036 AM CDT WED MAY 11 2016

...FLASH FLOOD EMERGENCY FOR NORTHERN SUMNER...WESTERN MACON...AND
TROUSDALE COUNTIES...

THE NATIONAL WEATHER SERVICE IN NASHVILLE HAS EXTENDED THE

* FLASH FLOOD WARNING FOR...
  SUMNER COUNTY IN MIDDLE TENNESSEE...
  WESTERN MACON COUNTY IN MIDDLE TENNESSEE...
  TROUSDALE COUNTY IN MIDDLE TENNESSEE...

* UNTIL 1245 PM CDT

* AT 1032 AM CDT...EMERGENCY MANAGEMENT OFFICIALS REPORTED FLASH
  FLOODING CONTINUES ACROSS THE WARNED AREA...WITH WATER RESCUES
  OCCURRING AND NUMEROUS ROADS FLOODED AND CLOSED. RADAR RAINFALL
  MEASUREMENTS SHOW AS MUCH AS 7 INCHES OF RAIN HAS FALLEN IN THE
  WARNED AREA...WITH AN ADDITIONAL 1 TO 2 INCHES OF RAIN IS POSSIBLE
  INTO THE AFTERNOON.

* THIS IS A FLASH FLOOD EMERGENCY FOR GALLATIN...CASTALIAN
  SPRINGS...LAFAYETTE...HARTSVILLE...WHITE HOUSE...WESTMORELAND... 
  PORTLAND...BLEDSOE CREEK STATE PARK...COTTONTOWN...BETHPAGE 
  AND OAK GROVE. THIS IS A PARTICULARLY DANGEROUS SITUATION. SEEK 
  HIGHER GROUND NOW! 

* MAJOR FLASH FLOODING IS LIKELY ALONG BLEDSOE CREEK NEAR 
  GALLATIN...THE GOOSE CREEK BASIN NEAR HARTSVILLE...WEST FORK 
  DRAKES CREEK NEAR PORTLAND...AND SULPHER FORK CREEK NEAR 
  BRACKENTOWN IN SUMNER COUNTY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

MOVE TO HIGHER GROUND NOW. THIS IS AN EXTREMELY DANGEROUS AND
LIFE-THREATENING SITUATION. DO NOT ATTEMPT TO TRAVEL UNLESS YOU ARE
FLEEING AN AREA SUBJECT TO FLOODING OR UNDER AN EVACUATION ORDER.

&&

LAT...LON 3664 8610 3657 8598 3640 8598 3638 8605
      3632 8613 3635 8623 3636 8647 3648 8665
      3655 8663 3660 8658 3665 8651

$$

05

The office that day

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

Issued	Product	Office	Counties	Lasted
May 10, 7:17 PM CDT	Special Weather Statement	OHX	Stewart	43 min
May 10, 7:51 PM CDT	Severe Thunderstorm Warning	OHX	Montgomery	24 min
May 10, 8:01 PM CDT	Tornado Warning	OHX	Montgomery	29 min
May 10, 8:14 PM CDT	Special Weather Statement	OHX	Stewart	46 min
May 10, 8:26 PM CDT	Tornado Warning	OHX	Montgomery	34 min
May 10, 8:41 PM CDT	Severe Thunderstorm Warning	OHX	Dickson, Houston, Montgomery, Stewart	34 min
May 10, 8:47 PM CDT	Severe Thunderstorm Warning	OHX	Montgomery, Robertson	28 min
May 10, 9:06 PM CDT	Severe Thunderstorm Warning	OHX	Stewart	24 min
May 10, 9:13 PM CDT	Severe Thunderstorm Warning	OHX	Cheatham, Dickson, Montgomery	47 min
May 10, 9:16 PM CDT	Special Weather Statement	OHX	Robertson	44 min
May 10, 9:18 PM CDT	Severe Thunderstorm Warning	OHX	Robertson, Sumner	27 min
May 10, 9:43 PM CDT	Severe Thunderstorm Warning	OHX	Robertson, Sumner	32 min
May 10, 9:51 PM CDT	Severe Thunderstorm Warning	OHX	Cheatham, Davidson, Montgomery, Robertson	24 min
May 10, 10:05 PM CDT	Severe Thunderstorm Warning	OHX	Montgomery, Robertson	25 min
May 10, 10:12 PM CDT	Severe Thunderstorm Warning	OHX	Sumner	33 min
May 10, 10:14 PM CDT	Severe Thunderstorm Warning	OHX	Cheatham, Davidson, Robertson, Sumner	46 min
May 10, 10:40 PM CDT	Severe Thunderstorm Warning	OHX	Macon, Sumner, Trousdale	40 min
May 10, 10:51 PM CDT	Severe Thunderstorm Warning	OHX	Cheatham, Davidson, Robertson, Sumner	39 min
May 10, 11:11 PM CDT	Severe Thunderstorm Warning	OHX	Cheatham, Davidson, Sumner, Wilson	34 min
May 10, 11:45 PM CDT	Severe Thunderstorm Warning	OHX	Davidson, Rutherford, Sumner, Wilson	30 min
May 10, 11:53 PM CDT	Flash Flood Warning	OHX	Davidson, Rutherford, Sumner, Wilson	112 min
May 10, 11:58 PM CDT	Flash Flood Warning	OHX	Cheatham, Davidson, Robertson, Sumner	3 hr
May 11, 12:18 AM CDT	Severe Thunderstorm Warning	OHX	Rutherford, Wilson	27 min
May 11, 12:44 AM CDT	Severe Thunderstorm Warning	OHX	Rutherford, Wilson	31 min
May 11, 1:10 AM CDT	Severe Thunderstorm Warning	OHX	Cannon, DeKalb, Rutherford, Wilson	35 min
May 11, 1:33 AM CDT	Special Weather Statement	OHX	Sumner	27 min
May 11, 1:39 AM CDT	Special Weather Statement	OHX	DeKalb	51 min
May 11, 1:43 AM CDT	Areal Flood Warning	OHX	Cheatham, Davidson, Robertson, Sumner, Wilson	2 hr
May 11, 2:02 AM CDT	Special Weather Statement	OHX	Trousdale	28 min
May 11, 2:20 AM CDT	Areal Flood Advisory	OHX	Robertson, Sumner	115 min
May 11, 2:57 AM CDT	Special Weather Statement	OHX	Macon, Smith, Sumner, Trousdale	63 min
May 11, 3:45 AM CDT	Special Weather Statement	OHX	Jackson, Smith, Trousdale	45 min
May 11, 4:03 AM CDT	Flash Flood Warning	OHX	Smith, Trousdale	117 min
May 11, 4:14 AM CDT	Flash Flood Warning	OHX	Sumner	2 hr
May 11, 4:35 AM CDT	Special Weather Statement	OHX	Jackson, Smith	40 min
May 11, 4:39 AM CDT	Special Weather Statement	OHX	Davidson	36 min
May 11, 5:55 AM CDT	Flash Flood Warning	OHX	Macon, Smith, Sumner, Trousdale	2 hr
May 11, 7:07 AM CDT	Special Weather Statement	OHX	Sumner	23 min
May 11, 7:21 AM CDT	Special Weather Statement	OHX	Jackson	24 min
May 11, 7:47 AM CDT	Special Weather Statement	OHX	Jackson, Putnam	58 min
May 11, 7:54 AM CDT	Flash Flood Warning	OHX	Jackson, Macon, Robertson, Smith, Sumner, Trousdale	4 hr
May 11, 8:32 AM CDT	Special Weather Statement	OHX	Sumner, Trousdale	43 min
May 11, 8:43 AM CDT	Special Weather Statement	OHX	Cumberland	32 min
May 11, 9:24 AM CDT	Flash Flood Warning	OHX	Cumberland, Fentress, Overton, Putnam	3 hr
May 11, 9:41 AM CDT	Special Weather Statement	OHX	Putnam	34 min
May 11, 11:57 AM CDT	Areal Flood Warning	OHX	Clay, Jackson, Macon, Robertson, Smith, Sumner and 2 more	6 hr

Nearby

Flash Flood Warnings in Tennessee, 2016 Every flash flood warning in 2016

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.