Alert archive / Tennessee / Flash Flood Warnings in 2016

Flash Flood Warning 25, NWS Nashville, TN

July 28, 2016Houston County, Humphreys County, Stewart County, Tennessee

NWS Nashville, TN issued this flash flood warning at Jul 28, 2016, 7:31 AM CDT for Houston County, Humphreys County, Stewart County, Tennessee. It was in force for 3 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
Jul 28, 2016, 7:31 AM CDT (12:31 UTC)
Expired
Jul 28, 2016, 10:30 AM CDT
In force
3 hr
Issued by
NWS Nashville, TN
Area
Storm-based polygon
Flood severity
None

Counties Houston County, TN, Humphreys County, TN, Stewart County, TN

The radar

The Ft Campbell radar (KHPX), 75 km from the middle of the area, began a volume at 12:31 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

TimeReportWhereRemark
Jul 28, 8:00 AM CDTFLASH FLOOD1 E Tennessee Ridge, TNMOBLEY LANE WAS FLOODED
Jul 28, 8:00 AM CDTFLASH FLOOD1 W Erin, TNSEVERAL STREETS FLOODED IN ERIN INCLUDING MCMILLIAN STREET...FRONT STREET...AND MAPLE STREET. WATER HAS SINCE RECEDED.
Jul 28, 8:00 AM CDTHEAVY RAIN 5.31 Sw Tennessee Ridge, TNCOCORAHS STATION TENNESSEE RIDGE 1.4 SW MEASURED A 24 HR RAINFALL TOTAL OF 5.30 INCHES

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, 0.5 hours before the alert went out and 115 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 12:00Z on 2016-07-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 639 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 12:00Z on 2016-07-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 81 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
639 J/kg
Mixed-layer CIN
-2 J/kg
Mixed-layer LCL
534 m above ground
0-6 km bulk shear
34 kt
0-1 km storm-relative helicity
81 m²/s²
0-3 km storm-relative helicity
97 m²/s²
Significant tornado parameter
0.2
Supercell composite
1.5

Open this sounding in Storm Lab

The text

As transmitted.

883 
WGUS54 KOHX 281231
FFWOHX
TNC083-085-161-281530-
/O.NEW.KOHX.FF.W.0025.160728T1231Z-160728T1530Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE NASHVILLE TN
731 AM CDT THU JUL 28 2016

THE NATIONAL WEATHER SERVICE IN NASHVILLE HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  SOUTHEASTERN STEWART COUNTY IN MIDDLE TENNESSEE...
  NORTHWESTERN HOUSTON COUNTY IN MIDDLE TENNESSEE...
  NORTHWESTERN HUMPHREYS COUNTY IN MIDDLE TENNESSEE...

* UNTIL 1030 AM CDT

* AT 730 AM CDT...DOPPLER RADAR INDICATED HEAVY RAIN ACROSS THE WARNED
  AREA. FLASH FLOODING IS EXPECTED TO BEGIN SHORTLY.

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  ERIN...TENNESSEE RIDGE AND CUMBERLAND CITY. 

ADDITIONAL RAINFALL AMOUNTS OF ONE TO TWO 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 3627 8793 3642 8780 3641 8764 3617 8780
      3612 8792 3617 8792 3618 8793 3622 8794

$$

19
1 follow-up statement
719 
WGUS74 KOHX 281333
FFSOHX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE NASHVILLE TN
833 AM CDT THU JUL 28 2016

TNC083-085-161-281530-
/O.CON.KOHX.FF.W.0025.000000T0000Z-160728T1530Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
STEWART TN-HOUSTON TN-HUMPHREYS TN-
833 AM CDT THU JUL 28 2016

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1030 AM CDT FOR
SOUTHEASTERN STEWART...NORTHWESTERN HOUSTON AND NORTHWESTERN
HUMPHREYS COUNTIES...

AT 825 AM CDT...DOPPLER RADAR INDICATED MODERATE RAIN CONTINUES
ACROSS THE WARNED AREA. RADAR ESTIMATED 4 TO 7 INCHES OF RAIN HAVE
ALREADY FALLEN AND FLASH FLOODING IS EXPECTED IN THE WARNED AREA.

SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
ERIN...TENNESSEE RIDGE...STEWART...AND CUMBERLAND CITY. 

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 3627 8793 3642 8780 3641 8764 3617 8780
      3612 8792 3617 8792 3618 8793 3622 8794

$$

SHAMBURGER

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 27, 9:24 PM CDTAreal Flood AdvisoryOHXStewart3 hr
Jul 28, 12:50 AM CDTAreal Flood AdvisoryOHXHouston, Humphreys, Stewart3 hr
Jul 28, 3:07 AM CDTAreal Flood AdvisoryOHXHouston, Montgomery, Stewart3 hr
Jul 28, 7:24 AM CDTAreal Flood AdvisoryOHXHouston, Humphreys, Montgomery, Stewart3 hr
Jul 28, 11:22 AM CDTAreal Flood AdvisoryOHXMacon, Sumner, Trousdale113 min
Jul 28, 12:34 PM CDTAreal Flood AdvisoryOHXClay, Jackson, Macon, Smith, Trousdale116 min
Jul 28, 2:32 PM CDTAreal Flood AdvisoryOHXClay, Fentress, Overton, Pickett118 min

Nearby

Flash Flood Warnings in Tennessee, 2016Every 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.