Alert archive / Tennessee / Flash Flood Warnings in 2016

Flash Flood Warning 11, NWS Nashville, TN

May 26, 2016Houston County, Humphreys County, Tennessee

NWS Nashville, TN issued this flash flood warning at May 26, 2016, 4:42 PM CDT for Houston County, Humphreys County, Tennessee. It was in force for 2 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: May 26, 2016, 4:42 PM CDT (21:42 UTC)
Expired: May 26, 2016, 6:45 PM CDT
In force: 2 hr
Issued by: NWS Nashville, TN
Area: Storm-based polygon
Flood severity: None

Counties Houston County, TN, Humphreys County, TN

The radar

The Ft Campbell radar (KHPX), 75 km from the middle of the area, began a volume at 21:45 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 12:00Z, 9.7 hours before the alert went out and 114 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: 265 J/kg
Mixed-layer CIN: -140 J/kg
Mixed-layer LCL: 1187 m above ground
0-6 km bulk shear: 15 kt
0-1 km storm-relative helicity: 166 m²/s²
0-3 km storm-relative helicity: 181 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.1

Open this sounding in Storm Lab

The text

As transmitted.

207 
WGUS54 KOHX 262142
FFWOHX
TNC083-085-262345-
/O.NEW.KOHX.FF.W.0011.160526T2142Z-160526T2345Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE NASHVILLE TN
442 PM CDT THU MAY 26 2016

THE NATIONAL WEATHER SERVICE IN NASHVILLE HAS ISSUED A

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

* UNTIL 645 PM CDT

* AT 441 PM CDT...DOPPLER RADAR INDICATED THUNDERSTORMS PRODUCING
  HEAVY RAIN ACROSS THE WARNED AREA. 2 TO 3 INCHES HAVE ALREADY
  FALLEN AND ANOTHER INCH IS POSSIBLE OVER THE NEXT HOUR. FLASH
  FLOODING IS EXPECTED TO BEGIN SHORTLY.

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  WAVERLY...CAMDEN...ERIN...TENNESSEE RIDGE...
  CUMBERLAND CITY AND HOUSTON COUNTY AIRPORT.

LAT...LON 3613 8792 3617 8792 3622 8795 3626 8794
      3629 8795 3632 8794 3633 8787 3633 8780
      3634 8776 3637 8772 3637 8765 3610 8776
      3608 8796

$$

27

1 follow-up statement

271 
WGUS74 KOHX 262252
FFSOHX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE NASHVILLE TN
552 PM CDT THU MAY 26 2016

TNC083-085-262345-
/O.CON.KOHX.FF.W.0011.000000T0000Z-160526T2345Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
HUMPHREYS TN-HOUSTON TN-
552 PM CDT THU MAY 26 2016

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 645 PM CDT FOR
NORTHWESTERN HUMPHREYS AND CENTRAL HOUSTON COUNTIES...

AT 550 PM CDT...DOPPLER RADAR CONTINUED TO INDICATE THUNDERSTORMS
PRODUCING HEAVY RAIN ACROSS THE WARNED AREA. A TOTAL OF 2 TO 4
INCHES OF RAIN HAVE FALLEN ALREADY. FLASH FLOODING WILL CONTINUE AS
UP TO 1 ADDITIONAL INCH OF RAIN WILL BE POSSIBLE. 

SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
WAVERLY...CAMDEN...ERIN...TENNESSEE RIDGE...
CUMBERLAND CITY AND HOUSTON COUNTY AIRPORT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TURN AROUND...DON'T DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD
DEATHS OCCUR IN VEHICLES.

&&

LAT...LON 3613 8792 3617 8792 3622 8795 3626 8794
      3629 8795 3632 8794 3633 8787 3633 8780
      3634 8776 3637 8772 3637 8765 3610 8776
      3608 8796

$$

HURLEY

The office that day

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

Issued	Product	Office	Counties	Lasted
May 26, 3:10 PM CDT	Special Weather Statement	OHX	Robertson	50 min
May 26, 3:37 PM CDT	Special Weather Statement	OHX	Houston	23 min
May 26, 3:40 PM CDT	Special Weather Statement	OHX	Cheatham	35 min
May 26, 3:42 PM CDT	Special Weather Statement	OHX	Stewart	33 min
May 26, 3:46 PM CDT	Areal Flood Advisory	OHX	Robertson	3 hr
May 26, 3:56 PM CDT	Special Weather Statement	OHX	Robertson	34 min
May 26, 4:06 PM CDT	Severe Thunderstorm Warning	OHX	Cheatham, Davidson, Robertson	24 min
May 26, 4:16 PM CDT	Special Weather Statement	OHX	Houston	44 min
May 26, 4:21 PM CDT	Special Weather Statement	OHX	Davidson	24 min
May 26, 4:26 PM CDT	Areal Flood Advisory	OHX	Sumner	2 hr
May 26, 4:32 PM CDT	Areal Flood Advisory	OHX	Houston, Humphreys	118 min
May 26, 4:32 PM CDT	Special Weather Statement	OHX	Cheatham	28 min
May 26, 4:45 PM CDT	Areal Flood Advisory	OHX	Robertson	2 hr
May 26, 4:51 PM CDT	Special Weather Statement	OHX	Overton	24 min
May 26, 4:57 PM CDT	Special Weather Statement	OHX	Cheatham	48 min
May 26, 5:09 PM CDT	Severe Thunderstorm Warning	OHX	Dickson	36 min
May 26, 5:16 PM CDT	Flash Flood Warning	OHX	Cheatham, Davidson, Dickson, Houston, Humphreys, Montgomery and 2 more	3 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.