Alert archive / Tennessee / Flash Flood Warnings in 2015

Flash Flood Warning 9, NWS Nashville, TN

July 2, 2015Hickman County, Humphreys County, Perry County, Tennessee

NWS Nashville, TN issued this flash flood warning at Jul 2, 2015, 9:50 PM CDT for Hickman County, Humphreys County, Perry County, 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 2, 2015, 9:50 PM CDT (02:50 UTC)
Expired: Jul 3, 2015, 12:45 AM CDT
In force: 3 hr
Issued by: NWS Nashville, TN
Area: Storm-based polygon
Flood severity: None

Counties Hickman County, TN, Humphreys County, TN, Perry County, TN

The radar

The Ft Campbell radar (KHPX), 116 km from the middle of the area, began a volume at 02:50 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, 2.8 hours before the alert went out and 124 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: 958 J/kg
Mixed-layer CIN: -14 J/kg
Mixed-layer LCL: 811 m above ground
0-6 km bulk shear: 22 kt
0-1 km storm-relative helicity: 73 m²/s²
0-3 km storm-relative helicity: 89 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.5

Open this sounding in Storm Lab

The text

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

164 
WGUS54 KOHX 030250
FFWOHX
TNC081-085-135-030545-
/O.NEW.KOHX.FF.W.0009.150703T0250Z-150703T0545Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE NASHVILLE TN
950 PM CDT THU JUL 2 2015

THE NATIONAL WEATHER SERVICE IN NASHVILLE HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  WESTERN HICKMAN COUNTY IN MIDDLE TENNESSEE...
  SOUTHERN HUMPHREYS COUNTY IN MIDDLE TENNESSEE...
  NORTHERN PERRY COUNTY IN MIDDLE TENNESSEE...

* UNTIL 1245 AM CDT
    
* AT 949 PM CDT...DOPPLER RADAR INDICATED THUNDERSTORMS PRODUCING 
  HEAVY RAIN MOVING INTO THE WARNED AREA. UP TO THREE INCHES OF RAIN 
  HAS ALREADY FALLEN OVER THE PAST 3 HOURS. FLASH FLOODING IS 
  EXPECTED TO BEGIN SHORTLY.

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  LOBELVILLE...PLEASANTVILLE...BUCKSNORT AND I-40 NEAR THE TENNESSEE
  RIVER.

ADDITIONAL RAINFALL AMOUNTS OF UP TO 1 TO 2 INCHES IS POSSIBLE IN 
THE WARNED AREA.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

MOVE TO HIGHER GROUND NOW. ACT QUICKLY TO PROTECT YOUR LIFE.

&&

LAT...LON 3574 8802 3577 8798 3583 8797 3587 8794
      3592 8793 3594 8793 3594 8800 3596 8801
      3596 8763 3564 8766 3571 8804

$$

21

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 2, 7:10 PM CDT	Special Weather Statement	OHX	Wilson	35 min
Jul 2, 7:18 PM CDT	Tornado Warning	OHX	Wilson	27 min
Jul 2, 7:28 PM CDT	Flash Flood Warning	OHX	Clay, Jackson, Overton	2 hr
Jul 2, 7:45 PM CDT	Tornado Warning	OHX	Wilson	30 min
Jul 2, 7:56 PM CDT	Special Weather Statement	OHX	Smith	34 min
Jul 2, 8:08 PM CDT	Tornado Warning Tornado observed	OHX	Smith, Wilson	22 min
Jul 2, 8:19 PM CDT	Special Weather Statement	OHX	Putnam	41 min
Jul 2, 8:36 PM CDT	Special Weather Statement	OHX	Overton	24 min
Jul 2, 9:06 PM CDT	Flash Flood Warning	OHX	Jackson, Overton, Putnam, Smith	3 hr
Jul 2, 9:30 PM CDT	Areal Flood Warning	OHX	Clay, Jackson, Overton	3 hr
Jul 2, 9:40 PM CDT	Flash Flood Warning	OHX	Cumberland, Putnam, White	4 hr
Jul 2, 9:54 PM CDT	Flash Flood Watch	OHX	Bedford, Cannon, Clay, Coffee, Cumberland, Davidson and 17 more	57 hr
Jul 3, 12:40 AM CDT	Areal Flood Warning	OHX	Clay, Overton, Putnam	3 hr
Jul 3, 1:49 AM CDT	Flash Flood Warning	OHX	Cumberland, Putnam, White	6 hr
Jul 3, 7:07 AM CDT	Flash Flood Warning	OHX	Clay, Jackson, Macon, Overton	3 hr
Jul 3, 7:28 AM CDT	Areal Flood Advisory	OHX	Cumberland, Putnam, White	3 hr
Jul 3, 10:06 AM CDT	Areal Flood Warning	OHX	Clay, Jackson, Macon, Overton	6 hr
Jul 3, 4:45 PM CDT	Special Weather Statement	OHX	Clay, Fentress, Jackson, Macon, Overton	45 min
Jul 3, 4:51 PM CDT	Special Weather Statement	OHX	Clay, Fentress, Jackson, Macon, Overton	39 min

Nearby

Flash Flood Warnings in Tennessee, 2015 Every 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.