Alert archive / Tennessee / Flash Flood Warnings in 2017

Flash Flood Warning 13, NWS Nashville, TN

June 4, 2017Robertson County, Sumner County, Tennessee

NWS Nashville, TN issued this flash flood warning at Jun 4, 2017, 8:28 PM CDT for Robertson County, Sumner 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
Jun 4, 2017, 8:28 PM CDT (01:28 UTC)
Expired
Jun 4, 2017, 11:30 PM CDT
In force
3 hr
Issued by
NWS Nashville, TN
Area
Storm-based polygon
Flood severity
None

Counties Robertson County, TN, Sumner County, TN

The radar

The Nashville radar (KOHX), 40 km from the middle of the area, began a volume at 01:32 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, 1.5 hours before the alert went out and 54 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 2017-06-05Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 508 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 2017-06-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 34 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
508 J/kg
Mixed-layer CIN
-21 J/kg
Mixed-layer LCL
981 m above ground
0-6 km bulk shear
22 kt
0-1 km storm-relative helicity
34 m²/s²
0-3 km storm-relative helicity
33 m²/s²
Significant tornado parameter
0.1
Supercell composite
1.6

Open this sounding in Storm Lab

The text

As transmitted.

767 
WGUS54 KOHX 050128
FFWOHX
TNC147-165-050430-
/O.NEW.KOHX.FF.W.0013.170605T0128Z-170605T0430Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Nashville TN
828 PM CDT SUN JUN 4 2017

The National Weather Service in Nashville has issued a

* Flash Flood Warning for...
  Northern Sumner County in Middle Tennessee...
  Northeastern Robertson County in Middle Tennessee...

* Until 1130 PM CDT

* At 827 PM CDT, heavy rain continued across the warned area. 
  Emergency management reported that flash flooding is already 
  occurring in the Portland area.

* Some locations that will experience flooding include...
  White House, Westmoreland, Cross Plains, Portland, Orlinda,
  Mitchellville, Oak Grove and Black Jack.

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 3664 8620 3655 8622 3652 8621 3645 8677
      3665 8679 3665 8659 3663 8656 3665 8651

$$

Rose

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 4, 7:55 PM CDTAreal Flood AdvisoryOHXRobertson, Sumner3 hr
Jun 4, 9:09 PM CDTFlash Flood WatchOHXCheatham, Clay, Davidson, Dickson, Fentress, Houston and 12 more18 hr
Jun 4, 10:16 PM CDTAreal Flood AdvisoryOHXMacon3 hr
Jun 5, 12:28 AM CDTFlash Flood WarningOHXRobertson, Sumner3 hr
Jun 5, 12:42 AM CDTFlash Flood WarningOHXMontgomery, Robertson3 hr
Jun 5, 11:07 AM CDTAreal Flood AdvisoryOHXSumner, Trousdale, Wilson113 min

Nearby

Flash Flood Warnings in Tennessee, 2017Every 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.