Alert archive / Tennessee / Flash Flood Warnings in 2015

Flash Flood Warning 13, NWS Nashville, TN

July 4, 20157 counties in Tennessee

NWS Nashville, TN issued this flash flood warning at Jul 4, 2015, 8:59 PM CDT for 7 counties in Tennessee. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Jul 4, 2015, 8:59 PM CDT (01:59 UTC)
Expired
Jul 5, 2015, 12:00 AM CDT
In force
3 hr
Issued by
NWS Nashville, TN
Area
Storm-based polygon
Flood severity
None

Counties Cheatham County, TN, Dickson County, TN, Hickman County, TN, Houston County, TN, Humphreys County, TN, Montgomery County, TN, Perry County, TN

The radar

The Ft Campbell radar (KHPX), 59 km from the middle of the area, began a volume at 02:00 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.

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 00:00Z, 2.0 hours before the alert went out and 60 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-pSkew-T log-p diagram, Nashville Metro, TN at 00:00Z on 2015-07-05Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 374 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Nashville Metro, TN at 00:00Z on 2015-07-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -10 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
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
374 J/kg
Mixed-layer CIN
-16 J/kg
Mixed-layer LCL
954 m above ground
0-6 km bulk shear
3 kt
0-1 km storm-relative helicity
-10 m²/s²
0-3 km storm-relative helicity
-8 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

203 
WGUS54 KOHX 050159
FFWOHX
TNC021-043-081-083-085-125-135-050500-
/O.NEW.KOHX.FF.W.0013.150705T0159Z-150705T0500Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE NASHVILLE TN
859 PM CDT SAT JUL 4 2015

THE NATIONAL WEATHER SERVICE IN NASHVILLE HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  EASTERN HOUSTON COUNTY IN MIDDLE TENNESSEE...
  CHEATHAM COUNTY IN MIDDLE TENNESSEE...
  WESTERN HICKMAN COUNTY IN MIDDLE TENNESSEE...
  HUMPHREYS COUNTY IN MIDDLE TENNESSEE...
  DICKSON COUNTY IN MIDDLE TENNESSEE...
  NORTHEASTERN PERRY COUNTY IN MIDDLE TENNESSEE...
  SOUTHERN MONTGOMERY COUNTY IN MIDDLE TENNESSEE...

* UNTIL MIDNIGHT CDT
    
* AT 857 PM CDT...DOPPLER RADAR INDICATED THUNDERSTORMS PRODUCING 
  HEAVY RAIN ACROSS THE WARNED AREA. FLASH FLOODING IS BECOMING 
  INCREASINGLY LIKELY.

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  DICKSON...ASHLAND CITY...WAVERLY...CENTERVILLE...WHITE BLUFF...
  MCEWEN...BURNS...HURRICANE MILLS...PLEASANT VIEW...CHARLOTTE...
  LOBELVILLE...VANLEER...SLAYDEN...PLEASANTVILLE...PINEWOOD...
  CHEATHAM DAM...BUCKSNORT AND CUNNINGHAM.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING.

&&

LAT...LON 3622 8779 3645 8745 3639 8700 3637 8699
      3637 8698 3638 8694 3638 8691 3637 8691
      3633 8692 3626 8697 3603 8727 3606 8752
      3567 8749 3563 8791

$$

ROSE
1 follow-up statement
716 
WGUS74 KOHX 050329
FFSOHX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE NASHVILLE TN
1029 PM CDT SAT JUL 4 2015

TNC021-043-081-083-085-125-135-050500-
/O.CON.KOHX.FF.W.0013.000000T0000Z-150705T0500Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
HOUSTON TN-CHEATHAM TN-HICKMAN TN-HUMPHREYS TN-DICKSON TN-PERRY TN-
MONTGOMERY TN-
1029 PM CDT SAT JUL 4 2015

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL MIDNIGHT CDT FOR
EASTERN HOUSTON...CHEATHAM...WESTERN HICKMAN...HUMPHREYS...DICKSON...
NORTHEASTERN PERRY AND SOUTHERN MONTGOMERY COUNTIES...

AT 1027 PM CDT...DOPPLER RADAR CONTINUED TO INDICATE MODERATE TO 
HEAVY RAINFALL ACROSS THE WARNED AREA. ALTHOUGH RAINFALL RATES HAVE 
DIMINISHED SOMEWHAT, RUNOFF MAY STILL PRODUCE FLASH FLOODING.

SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
DICKSON...ASHLAND CITY...WAVERLY...CENTERVILLE...WHITE BLUFF...
MCEWEN...BURNS...HURRICANE MILLS...PLEASANT VIEW...CHARLOTTE...
LOBELVILLE...VANLEER...SLAYDEN...PLEASANTVILLE...PINEWOOD...CHEATHAM
DAM...BUCKSNORT AND CUNNINGHAM.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING.

&&

LAT...LON 3622 8779 3645 8745 3639 8700 3637 8699
      3637 8698 3638 8694 3638 8691 3637 8691
      3633 8692 3626 8697 3603 8727 3606 8752
      3567 8749 3563 8791

$$

ROSE

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 4, 7:15 PM CDTAreal Flood AdvisoryOHXClay, Overton3 hr
Jul 4, 8:08 PM CDTSpecial Weather StatementOHXCheatham, Dickson, Houston, Humphreys37 min
Jul 4, 10:22 PM CDTSpecial Weather StatementOHXSmith, Trousdale38 min
Jul 4, 10:40 PM CDTAreal Flood AdvisoryOHXClay, Jackson, Overton65 min
Jul 5, 7:37 AM CDTSpecial Weather StatementOHXSumner38 min

Nearby

Flash Flood Warnings in Tennessee, 2015Every flash flood warning in 2015

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.