Alert archive / Tennessee / Flash Flood Warnings in 2016

Flash Flood Warning 24, NWS Nashville, TN

July 27, 2016Clay County, Tennessee

NWS Nashville, TN issued this flash flood warning at Jul 27, 2016, 5:28 AM CDT for Clay County, Tennessee. It was in force for 92 min. 1 report 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 27, 2016, 5:28 AM CDT (10:28 UTC)
Expired
Jul 27, 2016, 7:00 AM CDT
In force
92 min
Issued by
NWS Nashville, TN
Area
Storm-based polygon
Flood severity
None

County Clay County, TN

The radar

The Nashville radar (KOHX), 91 km from the middle of the area, began a volume at 10:27 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 27, 5:30 AM CDTFLASH FLOOD10 Wnw Celina, TNREPORT OF MINOR FLOODING ON OMER SHORT ROAD AND HIGHWAY 52.

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 00:00Z, 10.5 hours before the alert went out and 99 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 2016-07-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 677 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 2016-07-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 38 square meters per square second.1939Sfc1 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
677 J/kg
Mixed-layer CIN
-48 J/kg
Mixed-layer LCL
1631 m above ground
0-6 km bulk shear
19 kt
0-1 km storm-relative helicity
38 m²/s²
0-3 km storm-relative helicity
49 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

334 
WGUS54 KOHX 271028
FFWOHX
TNC027-271200-
/O.NEW.KOHX.FF.W.0024.160727T1028Z-160727T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE NASHVILLE TN
528 AM CDT WED JUL 27 2016

THE NATIONAL WEATHER SERVICE IN NASHVILLE HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  CLAY COUNTY IN MIDDLE TENNESSEE...

* UNTIL 700 AM CDT

* AT 527 AM CDT...DOPPLER RADAR INDICATED HEAVY RAIN ACROSS THE
  WARNED AREA. UP TO THREE INCHES OF RAIN HAVE ALREADY FALLEN. FLASH
  FLOODING IS EXPECTED TO BEGIN SHORTLY.

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  CELINA...DALE HOLLOW LAKE AND MOSS. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3653 8533 3649 8549 3650 8570 3652 8570
      3652 8574 3651 8573 3651 8576 3652 8577
      3651 8580 3662 8575 3661 8550 3662 8540

$$

07

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 27, 5:00 AM CDTAreal Flood AdvisoryOHXClay60 min
Jul 27, 1:38 PM CDTSpecial Weather StatementOHXWilson37 min
Jul 27, 1:42 PM CDTSpecial Weather StatementOHXDavidson48 min
Jul 27, 1:49 PM CDTSpecial Weather StatementOHXDeKalb, Putnam41 min
Jul 27, 1:58 PM CDTFlash Flood WatchOHXCannon, Cheatham, Clay, Davidson, DeKalb, Dickson and 22 more31 hr
Jul 27, 2:12 PM CDTSpecial Weather StatementOHXTrousdale48 min
Jul 27, 2:30 PM CDTSpecial Weather StatementOHXJackson, Smith45 min
Jul 27, 2:40 PM CDTSpecial Weather StatementOHXTrousdale, Wilson50 min
Jul 27, 3:09 PM CDTSevere Thunderstorm WarningOHXJackson, Macon, Smith36 min
Jul 27, 3:14 PM CDTSpecial Weather StatementOHXPickett46 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.