Alert archive / Tennessee / Flash Flood Warnings in 1998

Flash Flood Warning 100, NWS Nashville, TN

July 13, 1998Lawrence County, Lewis County, Maury County, Tennessee

NWS Nashville, TN issued this flash flood warning at Jul 13, 1998, 7:17 PM CDT for Lawrence County, Lewis County, Maury 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: Jul 13, 1998, 7:17 PM CDT (00:17 UTC)
Expired: Jul 13, 1998, 10:15 PM CDT
In force: 3 hr
Issued by: NWS Nashville, TN
Area: Whole counties

Counties Lawrence County, TN, Lewis County, TN, Maury County, TN

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 00:00Z, 0.3 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-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: 5 J/kg
Mixed-layer CIN: -104 J/kg
Mixed-layer LCL: 827 m above ground
0-6 km bulk shear: 6 kt
0-1 km storm-relative helicity: -21 m²/s²
0-3 km storm-relative helicity: 13 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KBNA 140016
FFWBNA
TNC055-099-101-119-140315-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE NASHVILLE TN
717 PM CDT MON JUL 13 1998

THE NATIONAL WEATHER SERVICE IN NASHVILLE HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  GILES COUNTY IN MIDDLE TENNESSEE
  LAWRENCE COUNTY IN MIDDLE TENNESSEE
  LEWIS COUNTY IN MIDDLE TENNESSEE
  MAURY COUNTY IN MIDDLE TENNESSEE

* UNTIL 1015 PM CDT

* AT 713 PM CDT... NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  AN AREA OF HEAVY RAIN THAT EXTENDED BACK INTO ALABAMA.  THIS
HEAVY RAIN WILL CONTINUE AT LEAST THROUGH 9 PM. LAWRENCE COUNTY EMA
AT 710 PM REPORTED HIGHWAY 64 WAS CLOSED WITH 8 TO 10 INCHES OF
WATER ACROSS THE ROAD.  EVACUATIONS HAVE BEGUN IN THE LOW-LYING
AREAS IN THE CITY OF LAWRENCEBURG.  AN ADDITIONAL ONE INCH OF
RAINFALL IS LIKELY THROUGH 830 PM.

DON'T DRIVE INTO AREAS WHERE WATER COVERS THE ROAD!

SW/WSS

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 Jul 13, 2:20 PM CDT, 4 hours 57 minutes earlier.

Area forecast discussion, Jul 13, 2:20 PM CDT, 4 hours 57 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NASHVILLE TN
220 PM CDT MON JUL 13 1998

MDLS IN DECNT AGREEMNT ON MOVMNT OF FEATURES HOWEVER...NGM ONE
MAGNITUDE LARGER IN INTENSITY.  SFC LO CURRNT NR FTW WL SLOLY
MOV TWRD MEM OVR NXT 24 TO 36 HOURS WITH SFC TROF AXIS RMNG ACRS/
VCNTY OF MD-S.  MN MSTR AXIS MAY BE LTL OVRDONE ON NGM BUT BLV
MSTR/INSTBLTY WL BE PLENTY SUFFICIENT FOR FRLY WIDE COVRAGE OF
SHWRS/TSTMS THRU TUE NGT WITH EXISTENCE OF WK MD/UPR LO CENTRS
SLIDG NR MS RVR.  MDLS AGAIN STRAY AWAY FM EACH OTHR SOMEWHAT
WAY LATE IN PD AND WUD SUGGST THE OLD TRUSTY COMPROMISE.

BLV FCST TREND WUD SUGGST LKLY OR BETTR POPS THRU TUES WITH POPS
DROPPING OFF SLGTLY TUE NGT/WED AS FA MIGRATES INTO LESS FAVRBL
DYNAMIC CONDITIONS.  07

BNA 71/81/72/87 8754

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 13, 7:17 PM CDT	Flash Flood Warning	OHX	Giles	3 hr
Jul 13, 10:13 PM CDT	Flash Flood Warning	OHX	Lawrence, Lewis, Maury	4 hr
Jul 13, 10:44 PM CDT	Flash Flood Warning	OHX	Hickman, Perry	3 hr
Jul 14, 7:17 AM CDT	Flash Flood Warning	OHX	Lawrence	3 hr
Jul 14, 10:06 AM CDT	Flash Flood Warning	OHX	Lawrence	3 hr

Nearby

Flash Flood Warnings in Tennessee, 1998 Every flash flood warning in 1998

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.