Alert archive / Tennessee / Flash Flood Warnings in 2016

Flash Flood Warning 8, NWS Nashville, TN

May 11, 20166 counties in Tennessee

NWS Nashville, TN issued this flash flood warning at May 11, 2016, 7:54 AM CDT for 6 counties in Tennessee. It was in force for 4 hr. 4 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: May 11, 2016, 7:54 AM CDT (12:54 UTC)
Expired: May 11, 2016, 12:00 PM CDT
In force: 4 hr
Issued by: NWS Nashville, TN
Area: Storm-based polygon
Flood severity: None

Counties Jackson County, TN, Macon County, TN, Robertson County, TN, Smith County, TN, Sumner County, TN, Trousdale County, TN

The radar

The Nashville radar (KOHX), 46 km from the middle of the area, began a volume at 12:53 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, 8:00 AM CDT	FLASH FLOOD	Lafayette, TN	MULTIPLE ROADS CLOSED. MACON COUNTY HIGHWAY DEPARTMENT RECOMMENDS NO TRAVEL UNLESS ABSOLUTELY NECESSARY
May 11, 8:15 AM CDT	FLASH FLOOD	Portland, TN	HIGHWAY 52 AND HIGHWAY 259 UNDERWATER AND CLOSED
May 11, 9:00 AM CDT	FLASH FLOOD	Orlinda, TN	FLOODING OF ROADS...YARDS AND AREAS AROUND HOMES REPORTED FROM ORLINDA TO CROSS PLAINS
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, 0.9 hours before the alert went out and 57 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.

319 
WGUS54 KOHX 111254
FFWOHX
TNC087-111-147-159-165-169-111500-
/O.NEW.KOHX.FF.W.0008.160511T1254Z-160511T1500Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

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

THE NATIONAL WEATHER SERVICE IN NASHVILLE HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  NORTHEASTERN ROBERTSON COUNTY IN MIDDLE TENNESSEE...
  NORTHERN SMITH COUNTY IN MIDDLE TENNESSEE...
  JACKSON COUNTY IN MIDDLE TENNESSEE...
  NORTHERN SUMNER COUNTY IN MIDDLE TENNESSEE...
  MACON COUNTY IN MIDDLE TENNESSEE...
  TROUSDALE COUNTY IN MIDDLE TENNESSEE...

* UNTIL 1000 AM CDT

* AT 753 AM CDT...EMERGENCY MANAGEMENT REPORTED FLASH FLOODING
  CONTINUES ACROSS MUCH OF THE WARNED AREA WITH WATER RESCUES AND
  EVACUATIONS ONGOING. RAINFALL MEASUREMENTS INDICATE 3 TO 6 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...MAINLY ACROSS
  NORTHEASTERN ROBERTSON...NORTHERN SUMNER...MACON...NORTHERN
  SMITH...AND NORTHWESTERN JACKSON COUNTIES.

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  LAFAYETTE...GALLATIN...CARTHAGE...GAINESBORO...HARTSVILLE...
  WESTMORELAND...CROSS PLAINS...RED BOILING SPRINGS...PORTLAND...SOUTH
  CARTHAGE...ORLINDA...MITCHELLVILLE...GRANVILLE...DIXON SPRINGS...
  WHITLEYVILLE...PLEASANT SHADE...BETHPAGE...OAK GROVE AND BLACK JACK.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING.
IF YOU ARE IN THE WARNED AREA MOVE TO HIGHER GROUND IMMEDIATELY.
RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE IMMEDIATE
PRECAUTIONS TO PROTECT LIFE AND PROPERTY.

&&

LAT...LON 3662 8579 3650 8581 3648 8561 3624 8561
      3625 8611 3632 8615 3650 8664 3665 8682
      3665 8659 3663 8656 3665 8651 3665 8635

$$

SHAMBURGER

1 follow-up statement

520 
WGUS54 KOHX 111450
FFWOHX
TNC087-111-147-159-165-169-111700-
/O.EXT.KOHX.FF.W.0008.000000T0000Z-160511T1700Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

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

THE NATIONAL WEATHER SERVICE IN NASHVILLE HAS EXTENDED THE

* FLASH FLOOD WARNING FOR...
  NORTHEASTERN ROBERTSON COUNTY IN MIDDLE TENNESSEE...
  NORTHERN SMITH COUNTY IN MIDDLE TENNESSEE...
  JACKSON COUNTY IN MIDDLE TENNESSEE...
  NORTHERN SUMNER COUNTY IN MIDDLE TENNESSEE...
  MACON COUNTY IN MIDDLE TENNESSEE...
  TROUSDALE COUNTY IN MIDDLE TENNESSEE...

* UNTIL NOON CDT

* AT 946 AM CDT...EMERGENCY MANAGEMENT HAS REPORTED FLASH FLOODING
  CONTINUING ACROSS MUCH OF THE WARNED AREA. RAINFALL MEASUREMENTS
  INDICATE 3 TO 6 INCHES OF RAIN HAS FALLEN SO FAR THIS MORNING AND
  MORE SCATTERED THUNDERSTORMS COULD LEAD TO AN ADDITIONAL 1-2
  INCHES OF RAIN BY NOON.

* SOME LOCATIONS THAT WILL CONTINUE TO EXPERIENCE FLOODING
  INCLUDE...
  GALLATIN...LAFAYETTE...CARTHAGE...GAINESBORO...HARTSVILLE...
  WESTMORELAND...CROSS PLAINS...RED BOILING
  SPRINGS...PORTLAND...SOUTH
  CARTHAGE...ORLINDA...MITCHELLVILLE...GRANVILLE...DIXON SPRINGS...
  WHITLEYVILLE...PLEASANT SHADE...BETHPAGE...OAK GROVE AND BLACK
  JACK.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TURN AROUND...DON'T DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST
FLOOD DEATHS OCCUR IN VEHICLES. TRAVEL IS NOT RECOMMENDED ALONG
SECONDARY ROADWAYS THAT ARE MORE FLOOD PRONE. 

A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING.
IF YOU ARE IN THE WARNED AREA MOVE TO HIGHER GROUND IMMEDIATELY.
RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE IMMEDIATE
PRECAUTIONS TO PROTECT LIFE AND PROPERTY.

&&

LAT...LON 3662 8579 3650 8581 3648 8561 3624 8561
      3625 8611 3632 8615 3650 8664 3665 8682
      3665 8659 3663 8656 3665 8651 3665 8635

$$

AL

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, 8:32 AM CDT	Special Weather Statement	OHX	Sumner, Trousdale	43 min
May 11, 8:41 AM CDT	Flash Flood Warning Emergency	OHX	Macon, Sumner, Trousdale	4 hr
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.