Alert archive / Tennessee / Flash Flood Warnings in 2017

Flash Flood Warning 27, NWS Nashville, TN

August 31, 20178 counties in Tennessee

NWS Nashville, TN issued this flash flood warning at Aug 31, 2017, 7:05 PM CDT for 8 counties in Tennessee. It was in force for 7 hr. 5 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: Aug 31, 2017, 7:05 PM CDT (00:05 UTC)
Expired: Sep 1, 2017, 2:30 AM CDT
In force: 7 hr
Issued by: NWS Nashville, TN
Area: Storm-based polygon
Flood severity: None

Counties Dickson County, TN, Hickman County, TN, Humphreys County, TN, Lewis County, TN, Maury County, TN, Perry County, TN, Wayne County, TN, Williamson County, TN

What was reported inside it

Time	Report	Where	Remark
Aug 31, 9:10 PM CDT	FLASH FLOOD	10 Se Centerville, TN	WATER OVER HOOVER RD AT DUNLAP RD IN THE SHADY GROVE COMMUNITY.
Aug 31, 9:28 PM CDT	FLASH FLOOD	2 Sw Fairview, TN	HAM REPORTED ROAD FLOODING AT HWY 100 AND GLENHAVEN DR IN FAIRVIEW.
Aug 31, 11:30 PM CDT	FLASH FLOOD	13 Wnw Spring Hill, TN	HAY HOLLOW RD AND LEIPERS CREEK RD ARE FLOODED.
Aug 31, 11:30 PM CDT	FLASH FLOOD	7 Nw Mount Pleasant, TN	FLOODING WAS REPORTED AT TAYLOR STORE RD.
Aug 31, 11:30 PM CDT	HEAVY RAIN 5.02	15 Ne Centerville, TN	5.02 INCHES OF RAIN MEASURED SO FAR TODAY.

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, 0.1 hours before the alert went out and 127 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: 292 J/kg
Mixed-layer CIN: -37 J/kg
Mixed-layer LCL: 859 m above ground
0-6 km bulk shear: 39 kt
0-1 km storm-relative helicity: 119 m²/s²
0-3 km storm-relative helicity: 192 m²/s²
Significant tornado parameter: 0.2
Supercell composite: 1.9

Open this sounding in Storm Lab

The text

As transmitted.

437 
WGUS54 KOHX 010005
FFWOHX
TNC043-081-085-101-119-135-181-187-010300-
/O.NEW.KOHX.FF.W.0027.170901T0005Z-170901T0300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Nashville TN
705 PM CDT THU AUG 31 2017

The National Weather Service in Nashville has issued a

* Flash Flood Warning for...
  Lewis County in Middle Tennessee...
  Northern Wayne County in Middle Tennessee...
  Southern Dickson County in Middle Tennessee...
  Northwestern Maury County in Middle Tennessee...
  Western Williamson County in Middle Tennessee...
  Perry County in Middle Tennessee...
  Southern Humphreys County in Middle Tennessee...
  Hickman County in Middle Tennessee...

* Until 1000 PM CDT

* At 703 PM CDT, Doppler radar indicated heavy rain across the warned
  area. Up to two inches of rain have already fallen. Flash flooding
  is expected to begin shortly.

* Some locations that will experience flooding include...
  Columbia, Dickson, Hohenwald, Centerville, Camden, Linden, Mount
  Pleasant, New Johnsonville, Hurricane Mills, Fairview, Clifton,
  Lobelville, Gordonsburg, Kimmins, Bon Aqua, Primm Springs,
  Flatwoods, Bucksnort, Hampshire and Pleasantville.

Additional rainfall amounts of 2 to 3 inches are possible in the 
warned area.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.

&&

LAT...LON 3548 8799 3553 8798 3562 8804 3566 8802
      3572 8804 3577 8798 3592 8793 3594 8793
      3595 8801 3597 8802 3608 8796 3602 8705
      3566 8696 3546 8746 3530 8802 3539 8802
      3539 8799 3541 8797 3543 8803 3545 8804

$$

Whitehead

2 follow-up statements

438 
WGUS54 KOHX 010212
FFWOHX
TNC043-081-085-101-119-135-181-187-010730-
/O.EXT.KOHX.FF.W.0027.000000T0000Z-170901T0730Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Nashville TN
912 PM CDT THU AUG 31 2017

The National Weather Service in Nashville has extended the

* Flash Flood Warning for...
  Lewis County in Middle Tennessee...
  Northern Wayne County in Middle Tennessee...
  Southern Dickson County in Middle Tennessee...
  Northwestern Maury County in Middle Tennessee...
  Western Williamson County in Middle Tennessee...
  Perry County in Middle Tennessee...
  Southern Humphreys County in Middle Tennessee...
  Hickman County in Middle Tennessee...

* Until 230 AM CDT

* At 911 PM CDT, Doppler radar indicated heavy rain across the 
  warned area. 4 to 5 inches of rain have fallen. Flash flooding is 
  already occurring.

* Some locations that will experience flooding include...
  Columbia, Dickson, Hohenwald, Centerville, Camden, Linden, Mount
  Pleasant, New Johnsonville, Hurricane Mills, Fairview, Clifton,
  Lobelville, Gordonsburg, Kimmins, Bon Aqua, Primm Springs,
  Flatwoods, Bucksnort, Hampshire and Pleasantville.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.

Be especially cautious at night when it is harder to recognize the
dangers of flooding.

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 3548 8799 3553 8798 3562 8804 3566 8802
      3572 8804 3577 8798 3592 8793 3594 8793
      3595 8801 3597 8802 3608 8796 3602 8705
      3566 8696 3546 8746 3530 8802 3539 8802
      3539 8799 3541 8797 3543 8803 3545 8804

$$

Whitehead

009 
WGUS74 KOHX 010559
FFSOHX

Flash Flood Statement
National Weather Service Nashville TN
1259 AM CDT FRI SEP 1 2017

TNC101-135-181-010604-
/O.CAN.KOHX.FF.W.0027.000000T0000Z-170901T0730Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Lewis TN-Wayne TN-Perry TN-
1259 AM CDT FRI SEP 1 2017

...THE FLASH FLOOD WARNING FOR LEWIS...NORTHERN WAYNE AND PERRY
COUNTIES IS CANCELLED...

Flooding is no longer expected to pose a threat. Please continue to
heed any remaining road closures.

LAT...LON 3608 8796 3602 8705 3566 8696 3554 8729
      3559 8735 3566 8734 3562 8745 3565 8759
      3561 8766 3566 8774 3570 8774 3570 8771
      3573 8773 3584 8772 3584 8782 3580 8785
      3584 8795 3594 8793 3595 8801 3597 8802

$$

TNC043-081-085-119-187-010730-
/O.CON.KOHX.FF.W.0027.000000T0000Z-170901T0730Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Dickson TN-Maury TN-Williamson TN-Humphreys TN-Hickman TN-
1259 AM CDT FRI SEP 1 2017

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 230 AM CDT FOR
SOUTHERN DICKSON...NORTHWESTERN MAURY...WESTERN WILLIAMSON...SOUTHERN
HUMPHREYS AND HICKMAN COUNTIES...

At 1254 AM CDT, Doppler radar indicated heavy rain has fallen across 
the warned area. 1 to 3 inches of rain has fallen in several spots 
and while rain has ended in most areas, flash flooding is still 
possible as rises on area creeks continue.

Some locations that will experience flooding include...
Columbia, Dickson, Centerville, Camden, New Johnsonville, Hurricane
Mills, Fairview, Bon Aqua, Primm Springs, Lyles, I-40 Near The
Tennessee River, Bucksnort, Santa Fe, Pinewood, Hampshire,
Pleasantville, Williamsport and Nunnelly.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.

Be especially cautious at night when it is harder to recognize the
dangers of flooding.

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 3608 8796 3602 8705 3566 8696 3554 8729
      3559 8735 3566 8734 3562 8745 3565 8759
      3561 8766 3566 8774 3570 8774 3570 8771
      3573 8773 3584 8772 3584 8782 3580 8785
      3584 8795 3594 8793 3595 8801 3597 8802

$$

27

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 31, 7:50 PM CDT	Tornado Warning	OHX	Williamson	25 min
Aug 31, 7:55 PM CDT	River Flood Advisory	OHX	Davidson	14 hr
Aug 31, 7:59 PM CDT	River Flood Advisory	OHX	Davidson	14 hr
Aug 31, 8:15 PM CDT	Tornado Warning	OHX	Giles, Marshall, Maury	30 min
Aug 31, 8:27 PM CDT	River Flood Advisory	OHX	Davidson	10 hr
Aug 31, 8:27 PM CDT	River Flood Advisory	OHX	Davidson	10 hr
Aug 31, 8:34 PM CDT	River Flood Warning	OHX	Davidson	24 hr
Aug 31, 8:48 PM CDT	River Flood Warning	OHX	Perry	64 hr
Aug 31, 8:48 PM CDT	River Flood Warning	OHX	Montgomery, Robertson	59 hr
Aug 31, 9:30 PM CDT	Areal Flood Advisory	OHX	Giles, Lawrence, Lewis, Marshall, Maury	2 hr
Aug 31, 9:40 PM CDT	Flash Flood Warning	OHX	Cheatham, Davidson, Williamson	5 hr
Aug 31, 10:19 PM CDT	Flash Flood Warning	OHX	Davidson, Marshall, Maury, Williamson	3 hr
Aug 31, 10:34 PM CDT	Severe Thunderstorm Warning	OHX	Bedford	26 min
Aug 31, 10:58 PM CDT	Severe Thunderstorm Warning	OHX	Bedford, Rutherford	32 min
Aug 31, 11:01 PM CDT	Special Weather Statement	OHX	Davidson, Robertson	44 min
Aug 31, 11:17 PM CDT	Severe Thunderstorm Warning	OHX	Cheatham, Davidson	28 min
Aug 31, 11:42 PM CDT	Wind Advisory	OHX	Bedford, Cannon, Cheatham, Coffee, Davidson, DeKalb and 21 more	16 hr
Aug 31, 11:47 PM CDT	River Flood Warning	OHX	Davidson	24 hr
Aug 31, 11:47 PM CDT	River Flood Warning	OHX	Davidson	24 hr
Aug 31, 11:53 PM CDT	Tornado Warning	OHX	Davidson	9 min
Sep 1, 12:17 AM CDT	Flash Flood Warning	OHX	Cheatham, Dickson	3 hr
Sep 1, 12:57 AM CDT	River Flood Warning	OHX	Cheatham	37 hr
Sep 1, 1:09 AM CDT	Flash Flood Warning	OHX	Davidson, Williamson	51 min
Sep 1, 1:09 AM CDT	River Flood Advisory	OHX	Davidson, Williamson	20 hr
Sep 1, 1:09 AM CDT	River Flood Advisory	OHX	Montgomery	9 hr
Sep 1, 1:09 AM CDT	River Flood Advisory	OHX	Stewart	9 hr
Sep 1, 1:09 AM CDT	River Flood Advisory	OHX	Humphreys	30 hr
Sep 1, 1:15 AM CDT	River Flood Warning	OHX	Davidson	24 hr
Sep 1, 3:30 AM CDT	Flash Flood Warning	OHX	Cheatham, Montgomery, Robertson	2 hr
Sep 1, 4:29 AM CDT	River Flood Warning	OHX	Cheatham	24 hr
Sep 1, 5:39 AM CDT	River Flood Advisory	OHX	Davidson, Sumner	3 hr
Sep 1, 5:40 AM CDT	River Flood Warning	OHX	Davidson	2 hr
Sep 1, 5:43 AM CDT	River Flood Advisory	OHX	Hickman	5 hr
Sep 1, 9:20 AM CDT	River Flood Advisory	OHX	Hickman	10 hr
Sep 1, 10:10 AM CDT	River Flood Warning	OHX	Montgomery	33 hr
Sep 1, 10:10 AM CDT	River Flood Warning	OHX	Stewart	39 hr
Sep 1, 11:30 AM CDT	River Flood Advisory	OHX	Cheatham	9 hr
Sep 1, 3:15 PM CDT	River Flood Advisory	OHX	Montgomery	25 hr

Nearby

Flash Flood Warnings in Tennessee, 2017 Every flash flood warning in 2017

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.