Alert archive / Tennessee / Flash Flood Warnings in 1999

Flash Flood Warning 51, NWS Nashville, TN

June 28, 1999Lawrence County, Wayne County, Tennessee

NWS Nashville, TN issued this flash flood warning at Jun 28, 1999, 12:37 AM CDT for Lawrence County, Wayne 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 counties it named.

The facts

Issued
Jun 28, 1999, 12:37 AM CDT (05:37 UTC)
Expired
Jun 28, 1999, 3:45 AM CDT
In force
3 hr
Issued by
NWS Nashville, TN
Area
Whole counties

Counties Lawrence County, TN, Wayne County, TN

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 00:00Z, 5.6 hours before the alert went out and 134 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 1999-06-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1357 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 1999-06-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 14 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
1357 J/kg
Mixed-layer CIN
-1 J/kg
Mixed-layer LCL
1184 m above ground
0-6 km bulk shear
8 kt
0-1 km storm-relative helicity
14 m²/s²
0-3 km storm-relative helicity
62 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

What forecasters said that day

The local office's own words before this flash flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Nashville, TN wrote its last area forecast discussion before this flash flood warning went out at Jun 27, 9:23 PM CDT, 3 hours 14 minutes earlier.

Area forecast discussion, Jun 27, 9:23 PM CDT, 3 hours 14 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NASHVILLE TN
923 PM CDT SUN JUN 27 1999

WELL...LATEST SURFACE AND SATELLITE ANALYSIS HAS MCS 1 SLIGHTLY
FIZZLING OUT AS THE COMPLEX ENCOUNTERS A MORE STABLE AIRMASS.
CORFIDI VECTORS TRACKED THE COMPLEX TO NEAR PERFECTION TO THE S-SE.
SO WILL BRING BACK THE ORIGINAL WORDING OF POPS IN THE WEST AND
DELETE THE THIS EVENING PERIOD.

00Z SOUNDING STILL UNSTABLE BUT MUCH DRIER THAN LAST 3 SWINGS.
SW WINDS DRIED THE INTEGRATED PRECIPITABLE WATER TO BELOW 1.8
INCHES AND CAPES HAVE DROPPED TO AROUND 1000 J/KG.  2ND MCS IS
ON TRACK TO AFFECT THE WESTERN COUNTIES OF TN...AND ONLY A SMALL
PORTION OF MIDDLE TN.  HOWEVER...WITH LIS OF -4...AND K INDICES OF
NEAR 30 WILL LEAVE SCT POPS EVERYWHERE.

FOG POTENTIAL IS STILL VALID FOR THE PLATEAU...AS MAIN HIGH LEVEL
CLOUD COVER WILL MISS THE PLATEAU.   WITH ALL THE RAIN THEY
RECEIVED OVER THE LAST 72 HOURS...LIGHT SW WINDS AND SCT-BKN
CLOUDS...PORTIONS OF THE PLATEAU SHOULD HAVE FOG.

MID SHIFT WILL NEED TO ADDRESS FFA POTENTIAL IN WRN MIDDLE TN DUE TO
ALL THE RECENT HEAVY RAINFALL IN THE WEST.  OLD ETA HAS VERY STRONG
VORT MAX THAT KEEP TRACKING SE FROM MO & NE IN THE VICINITY
OF SURFACE FRONT AND IT TRACKS IT INTO ALL OF MIDDLE TN ON MON.

JDG

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 27, 11:36 PM CDTFlash Flood WarningOHXPerry, Wayne3 hr
Jun 28, 7:43 AM CDTFlash Flood WarningOHXCoffee, Franklin3 hr
Jun 28, 7:43 AM CDTFlash Flood WarningOHXCannon, Warren3 hr
Jun 28, 10:49 AM CDTFlash Flood WarningOHXFranklin2 hr
Jun 28, 2:30 PM CDTSevere Thunderstorm WarningOHXCheatham, Robertson45 min
Jun 28, 2:30 PM CDTSevere Thunderstorm WarningOHXDickson45 min
Jun 28, 3:05 PM CDTSevere Thunderstorm WarningOHXCheatham, Dickson55 min
Jun 28, 3:05 PM CDTSevere Thunderstorm WarningOHXDavidson55 min
Jun 28, 3:16 PM CDTSevere Thunderstorm WarningOHXRobertson, Sumner44 min
Jun 28, 3:46 PM CDTFlash Flood WarningOHXMontgomery, Stewart3 hr
Jun 28, 4:06 PM CDTFlash Flood WarningOHXCheatham, Davidson, Robertson, Sumner, Wilson3 hr
Jun 28, 4:06 PM CDTFlash Flood WarningOHXDickson, Houston3 hr

Nearby

Flash Flood Warnings in Tennessee, 1999Every flash flood warning in 1999

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.