Alert archive / Tennessee / Flash Flood Warnings in 1998
Flash Flood Warning 104, NWS Nashville, TN
NWS Nashville, TN issued this flash flood warning at Jul 14, 1998, 7:17 AM CDT for Lawrence 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 14, 1998, 7:17 AM CDT (12:17 UTC)
- Expired
- Jul 14, 1998, 10:15 AM CDT
- In force
- 3 hr
- Issued by
- NWS Nashville, TN
- Area
- Whole counties
County Lawrence County, TN
The nearest sounding before it
Nashville Metro, TN (KBNA), launched 12:00Z, 0.3 hours before the alert went out and 124 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.
- Mixed-layer CAPE
- 149 J/kg
- Mixed-layer CIN
- -23 J/kg
- Mixed-layer LCL
- 748 m above ground
- 0-6 km bulk shear
- 23 kt
- 0-1 km storm-relative helicity
- 130 m²/s²
- 0-3 km storm-relative helicity
- 180 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KBNA 141221 COR FFWBNA TNC099-141515- BULLETIN - EAS ACTIVATION REQUESTED FLOOD WARNING...CORRECTED FOR CALL TO ACTION NATIONAL WEATHER SERVICE NASHVILLE TN 717 AM CDT TUE JUL 14 1998 THE NATIONAL WEATHER SERVICE IN NASHVILLE HAS ISSUED A * FLOOD WARNING FOR... LAWRENCE COUNTY IN MIDDLE TENNESSEE * UNTIL 1015 AM CDT * AT 712 AM CDT... NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED MODERATE SHOWERS MOVING SLOWLY NORTH ACROSS THE COUNTY. THESE SHOWERS COULD PERSIST FOR SEVERAL HOURS AND CAUSE ADDITIONAL FLOODING ALONG ALREADY SWOLLEN STREAMS AND CREEKS. DON'T DRIVE ACROSS FLOODED ROADS! MOST FLASH FLOOD DEATHS OCCUR IN AUTOMOBILES. MM/MAR
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 14, 2:35 AM CDT, 4 hours 42 minutes earlier.
Area forecast discussion, Jul 14, 2:35 AM CDT, 4 hours 42 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE NASHVILLE TN 235 AM CDT TUE JUL 14 1998 00Z ETA HAS COME MORE IN LN W/ NGM...ALTHO WL STICK W/ NGM AS MODEL OF CHOICE AS IT CONTINUES TO VERIFY QUITE WELL. FLASH FLOOD THREAT APPRS TO HAVE ABATED IN MID TN...AT LEAST FOR THE IMMEDIATE FUTURE...AS AXIS OF HEAVIEST RAINFALL HAS SHIFTED NWD INTO NW MID TN COUNTIES WHICH HAVE HAD RELATIVELY LTL PCPN UNTIL NOW. RAINFALL RATES HAVE DROPPED TO 0.5 IN/HR ARND DICKSON AND WAVERLY. FFG IN THIS AREA RUNNING >2.0 IN/HR. MOISTURE AXIS WL SHIFT TO THE W BY DAYBREAK...SO PRIMARY FOCUS FOR HEAVY RAIN IN BNA CWA WL BE COUNTIES ALONG TN RVR...AND IN SW MID TN. PORTIONS OF LAWRENCE COUNTY HAVE RECEIVED AS MUCH AS 8.5 IN OF PCPN SINCE YDA (WSR-88D ESTIMATE)...SO ANY ADDITIONAL RAINFALL WL ONLY AGGRAVATE THIS AREA. MODELS SHOWING AREA OF H8 CONVERGENCE/H3 DIVERGENCE OVR W TN TDA CREATING STG DIFFERENTIAL DIFLUENCE. MAX PCPN AREA SHUD PROPAGATE NWD TMRW/TMRW NGT W/ PRIMARY FOCUS OVR NW MID TN BY END OF PD 2 AS INTENSIFICATION OF PCPN CAUSED BY THIS JET COUPLET OCCURS. ALTHO DYNAMICS REMAIN SOMEWHAT WEAK...MOISTURE CHANNEL WL REMAIN IN PLACE AT LEAST DURG NEXT 36H...AND W/ STG DIFFERENTIAL DIFLUENCE PROVIDING UPWARD VERTICAL MOTION BLV POPS SHUD REMAIN IN FCST AT LEAST THRU PD 4...W/ HIGHEST POPS FOR COUNTIES W OF PLATEAU...W/ MENTION OF HEAVY RAIN IN PD 1 FOR COUNTIES ALONG TN RVR. NASHVILLE 82/72/87/71 7554 COOKEVILLE 82/67/85/69 2322 LAWRENCEBURG 81/71/87/71 8443 MCMINNVILLE 84/69/87/71 2222 08
In the hours before
Local storm report, Jul 14, 6:36 AM CDT, 41 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NASHVILLE TN
636 AM CDT TUE JUL 14 1998
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0615 PM LAWRENCEBURG TN FLOODING
07/13/98 LAWRENCE HWY 64 CLOSED REPORTED BY
LAW ENFORCEMENT
0637 PM TN FLOODING
07/13/98 MAURY NUMEROUS ROADS CLOSED
REPORTED BY EMA
0712 PM LAWRENCEBURG TN FLOODING
07/13/98 LAWRENCE NUMEROUS ROADS CLOSED
REPORTED BY EMA
0935 PM MT PLEASANT TN FLOODING
07/13/98 MAURY WASHED OUT BRIDGES AND
CLOSED ROADS REPORTED BY
LAW ENFORCEMENT
1035 PM TN FLOODING
07/13/98 LAWRENCE *** 4 DEAD ***
WHITE WATER RESCUE
OPERATIONS BEING PERFORMED
BY NATIONAL GUARD REPORTED
BY EMAThe 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 | Lawrence, Lewis, Maury | 3 hr |
| 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, 10:06 AM CDT | Flash Flood Warning | OHX | Lawrence | 3 hr |
Nearby
Flash Flood Warnings in Tennessee, 1998Every 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.