Alert archive / Tennessee / Flash Flood Warnings in 2003

Flash Flood Warning 76, NWS Nashville, TN

July 31, 2003Humphreys County, Tennessee

NWS Nashville, TN issued this flash flood warning at Jul 31, 2003, 12:30 AM CDT for Humphreys 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 31, 2003, 12:30 AM CDT (05:30 UTC)
Expired
Jul 31, 2003, 3:30 AM CDT
In force
3 hr
Issued by
NWS Nashville, TN
Area
Counties, with a storm outline in the text

County Humphreys County, TN

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 00:00Z, 5.5 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-pSkew-T log-p diagram, Nashville Metro, TN at 00:00Z on 2003-07-31Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1689 joules per kilogram.LCLEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Nashville Metro, TN at 00:00Z on 2003-07-31The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 28 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
1689 J/kg
Mixed-layer CIN
-5 J/kg
Mixed-layer LCL
959 m above ground
0-6 km bulk shear
23 kt
0-1 km storm-relative helicity
28 m²/s²
0-3 km storm-relative helicity
44 m²/s²
Significant tornado parameter
0.2
Supercell composite
1.2

Open this sounding in Storm Lab

The text

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

000 
WGUS54 KOHX 310537 CCA
FFWBNA
TNC085-310830-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING...CORRECTED
NATIONAL WEATHER SERVICE NASHVILLE TN
1230 AM CDT THU JUL 31 2003

THE NATIONAL WEATHER SERVICE IN NASHVILLE HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  HUMPHREYS COUNTY IN TENNESSEE

* UNTIL 330 AM CDT.

* AT 1220 AM CDT...WEATHER RADAR INDICATED THUNDERSTORMS WITH HEAVY RAIN
  MOVING THROUGH HUMPHREYS COUNTY. ADDITIONAL HEAVY RAINS...EXCPECTED
  THROUGH THE EARLY MORNING HOURS...WILL CREATE THE LIKELIHOOD FOR 
  FLASH FLOODING. 

IN ADDITION...THE SHERRIFS OFFICE IN HUMPHREYS REPORTS LOCALIZED FLOODING
IS ALREADY TAKING PALCE. 

* CITIES AFFECTED THROUGH 330 AM CDT INCLUDE...
  WAVERLY

STAY TUNED TO THIS NATIONAL WEATHER SERVICE BROADCAST FOR THE LATEST
UPDATES AND INFORMATION. TO REPORT FLOODING...CONTACT LOCAL LAW
ENFORCEMENT.

LAT...LON 3591 8799 3579 8783 3604 8759 3620 8785

$$
19

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 31, 1:34 AM CDTFlash Flood WarningOHXHickman3 hr
Jul 31, 8:37 AM CDTFlash Flood WarningOHXClay, Pickett113 min
Jul 31, 10:02 AM CDTFlash Flood WarningOHXOverton118 min
Jul 31, 10:25 AM CDTFlash Flood WarningOHXPickett95 min

Nearby

Flash Flood Warnings in Tennessee, 2003Every flash flood warning in 2003

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.