Alert archive / Tennessee / Flash Flood Warnings in 1998

Flash Flood Warning 25, NWS Memphis, TN

July 30, 1998Chester County, Tennessee

NWS Memphis, TN issued this flash flood warning at Jul 30, 1998, 11:33 PM CDT for Chester County, Tennessee. It was in force for 117 min. 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 30, 1998, 11:33 PM CDT (04:33 UTC)
Expired
Jul 31, 1998, 1:30 AM CDT
In force
117 min
Issued by
NWS Memphis, TN
Area
Whole counties

County Chester County, TN

The nearest sounding before it

Little Rock, AR (KLZK), launched 00:00Z, 4.6 hours before the alert went out and 138 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, Little Rock, AR at 00:00Z on 1998-07-31Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 491 joules per kilogram.LCLLFCEL10008507005003002001001 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, Little Rock, AR at 00:00Z on 1998-07-31The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 51 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
491 J/kg
Mixed-layer CIN
-27 J/kg
Mixed-layer LCL
2473 m above ground
0-6 km bulk shear
23 kt
0-1 km storm-relative helicity
51 m²/s²
0-3 km storm-relative helicity
109 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.5

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KMEM 310432
FFWMEM
TNC023-310630-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MEMPHIS TN
1133 PM CDT THU JUL 30 1998

THE NATIONAL WEATHER SERVICE IN MEMPHIS HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  CHESTER COUNTY IN WEST TENNESSEE

* UNTIL 130 AM CDT

* AT 1125 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  THUNDERSTORMS OVER CHESTER COUNTY PRODUCING RAINFALL UP TO TWO
  INCHES AN HOUR. THESE THUNDERSTORMS ARE MOVING SOUTHEAST AT 25 MPH
  BUT ADDITIONAL THUNDERSTORMS ARE LIKELY TONIGHT WHICH WILL
  AGGRAVATE FLOODING CONDITIONS.

.BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLASH FLOODING. IF FLOODING IS OBSERVED...ACT QUICKLY.
MOVE UP TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS SUBJECT TO
FLOODING WHEN WATER BEGINS RISING.

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.

In the hours before

Local storm report, Jul 30, 9:55 PM CDT, 1 hour 38 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MEMPHIS TENNESSEE
955 PM CDT THU JUL 30 1998

TIME(CDT)  .....CITY LOCATION..... STATE  ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0700 PM    KENNETT                   MO   WIND DAMAGE
07/30/98   DUNKLIN                        POWER LINES DOWN WITH MINOR
                                          STRUCTURAL DAMAGE REPORTED
                                          BY KENNETT POLICE DEPT

0720 PM    GLENNONVILLE              MO   WIND DAMAGE
07/30/98   DUNKLIN                        TREES DOWN WITH HIGHWAY 53
                                          BLOCKED REPORTED BY KENNETT PD

0745 PM    TIPTONVILLE               TN   WIND DAMAGE
07/30/98   LAKE                           TREES AND POWER LINES DOWN

0810 PM    HAYTI                     MO   WIND DAMAGE
07/30/98   PEMISCOT                  MO   TREES DOWN REPORTED BY
                                          PEMISCOT CO EOC

0825 PM    PARIS                     TN   WIND DAMAGE
07/30/98   HENRY                          TREES AND POWER LINES DOWN
                                          REPORTED BY HENRY CO SHERIFF

0915 PM    MCKENZIE AND HUNTINGDON   TN   WIND DAMAGE
07/30/98   CARROLL                        TREES AND POWER LINES DOWN
                                          REPORTED BY CARROLL CO SHERIFF
Local storm report, Jul 30, 9:55 PM CDT, 1 hour 38 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MEMPHIS TENNESSEE
955 PM CDT THU JUL 30 1998

TIME(CDT)  .....CITY LOCATION..... STATE  ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0700 PM    KENNETT                   MO   WIND DAMAGE
07/30/98   DUNKLIN                        POWER LINES DOWN WITH MINOR
                                          STRUCTURAL DAMAGE REPORTED
                                          BY KENNETT POLICE DEPT

0720 PM    GLENNONVILLE              MO   WIND DAMAGE
07/30/98   DUNKLIN                        TREES DOWN WITH HIGHWAY 53
                                          BLOCKED REPORTED BY KENNETT PD

0745 PM    TIPTONVILLE               TN   WIND DAMAGE
07/30/98   LAKE                           TREES AND POWER LINES DOWN

0810 PM    HAYTI                     MO   WIND DAMAGE
07/30/98   PEMISCOT                  MO   TREES DOWN REPORTED BY
                                          PEMISCOT CO EOC

0825 PM    PARIS                     TN   WIND DAMAGE
07/30/98   HENRY                          TREES AND POWER LINES DOWN
                                          REPORTED BY HENRY CO SHERIFF

0915 PM    MCKENZIE AND HUNTINGDON   TN   WIND DAMAGE
07/30/98   CARROLL                        TREES AND POWER LINES DOWN
                                          REPORTED BY CARROLL CO SHERIFF

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 30, 8:06 PM CDTSevere Thunderstorm WarningMEGObion49 min
Jul 30, 8:15 PM CDTSevere Thunderstorm WarningMEGHenry45 min
Jul 30, 8:24 PM CDTSevere Thunderstorm WarningMEGDyer61 min
Jul 30, 8:59 PM CDTSevere Thunderstorm WarningMEGCarroll46 min
Jul 30, 9:35 PM CDTFlash Flood WarningMEGHenry115 min
Jul 30, 11:12 PM CDTFlash Flood WarningMEGCrockett, Madison108 min
Jul 31, 3:29 AM CDTFlash Flood WarningMEGLauderdale3 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.