Alert archive / Tennessee / Flash Flood Warnings in 1998

Flash Flood Warning 15, NWS Memphis, TN

June 20, 1998Dyer County, Tennessee

NWS Memphis, TN issued this flash flood warning at Jun 20, 1998, 7:14 AM CDT for Dyer County, Tennessee. It was in force for 106 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: Jun 20, 1998, 7:14 AM CDT (12:14 UTC)
Expired: Jun 20, 1998, 9:00 AM CDT
In force: 106 min
Issued by: NWS Memphis, TN
Area: Whole counties

County Dyer County, TN

The radar

The Memphis radar (KNQA), 90 km from the middle of the area, began a volume at 12:15 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Little Rock, AR (KLZK), launched 12:00Z, 0.2 hours before the alert went out and 145 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: 2671 J/kg
Mixed-layer CIN: -143 J/kg
Mixed-layer LCL: 1222 m above ground
0-6 km bulk shear: 17 kt
0-1 km storm-relative helicity: -40 m²/s²
0-3 km storm-relative helicity: -18 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 KMEM 201215
FFWMEM
MOC069-155-TNC045-201400-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MEMPHIS TN
714 AM CDT SAT JUN 20 1998

THE NATIONAL WEATHER SERVICE IN MEMPHIS HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  SOUTHERN DUNKLIN COUNTY IN SOUTHEASTERN MISSOURI
  SOUTHERN PEMISCOT COUNTY IN SOUTHEASTERN MISSOURI
  SOUTHERN DYER COUNTY IN WESTERN TENNESSEE

* UNTIL 900 AM CDT

* AT 710 AM CDT... NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  A NEAR STATIONARY LINE OF THUNDERSTORMS WITH VERY HEAVY RAIN
  FROM SENETH IN SOUTHERN DUNKLIN COUNTY ACROSS INTERSTATE 55 NEAR
  STEELE IN PEMISCOT COUNTY AND INTO DYER COUNTY NEAR DYERSBURG.

* 2 TO 4 INCHES OF RAIN HAS FALLEN THROUGH 7 AM AND RAINFALL RATES
  OF 1 TO 2 INCHES PER HOUR ARE EXPECTED TO CONTINUE THROUGH 9 AM.

.DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY. VEHICLES CAUGHT IN RISING WATER SHOULD BE ABANDONED QUICKLY.
MOVE TO HIGHER GROUND.

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, Jun 20, 2:45 AM CDT, 4 hours 29 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MEMPHIS TENNESSEE
245 AM CDT SAT JUN 20 1998

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

120 AM     ST FRANCIS                AR   WIND DAMAGE
06/20/98   CLAY                           LARGE TREES DOWN ON ROADS
                                          REPORTED BY SPOTTERS

120 AM     CAMPBELL                  MO   WIND DAMAGE
06/20/98   DUNKLIN                        NUMEROUS TREES DOWN ACROSS
                                          NORTHERN DUNKLIN COUNTY
                                          REPORTED BY MO STATE POLICE

140 AM     HAYTI                     MO   WIND DAMAGE
06/20/98   PEMISCOT                       LARGE TREES DOWN DAMAGING A
                                          HOUSE TRAILER REPORTED BY
                                          PEMISCOT COUNTY EMA

Local storm report, Jun 20, 2:45 AM CDT, 4 hours 29 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MEMPHIS TENNESSEE
245 AM CDT SAT JUN 20 1998

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

120 AM     ST FRANCIS                AR   WIND DAMAGE
06/20/98   CLAY                           LARGE TREES DOWN ON ROADS
                                          REPORTED BY SPOTTERS

120 AM     CAMPBELL                  MO   WIND DAMAGE
06/20/98   DUNKLIN                        NUMEROUS TREES DOWN ACROSS
                                          NORTHERN DUNKLIN COUNTY
                                          REPORTED BY MO STATE POLICE

140 AM     HAYTI                     MO   WIND DAMAGE
06/20/98   PEMISCOT                       LARGE TREES DOWN DAMAGING A
                                          HOUSE TRAILER REPORTED BY
                                          PEMISCOT COUNTY EMA

Special weather statement, Jun 20, 4:23 AM CDT, 2 hours 51 minutes before

ARZ008-009-017-018-026>028-MOZ113-115-TNZ001>004-019>021-048>054-
200945-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MEMPHIS TN
423 AM CDT SAT JUN 20 1998

THE SEVERE THUNDERSTORM WATCH WHICH WAS IN EFFECT FOR PARTS OF THE
MEMPHIS COUNTY WARNING AREA HAS BEEN CLEARED. THIS INCLUDES NORTHEAST
ARKANSAS..THE MISSOURI BOOTHEEL AND MUCH OF WEST TENNESSEE.

THE FOLLOWING COUNTIES ARE NO LONGER IN THE WATCH...
IN ARKANSAS

   ...CLAY... CRAIGHEAD... GREENE... LAWRENCE... MISSISSIPPI
   ...POINSETT... RANDOLPH

IN MISSOURI

   ...DUNKLIN... PEMISCOT

IN TENNESSEE

   ...CARROLL... CHESTER... CROCKETT... DYER... GIBSON... HAYWOOD
   ...HENDERSON... HENRY... LAKE... LAUDERDALE... MADISON... OBION
   ...TIPTON... WEAKLEY

THUNDERSTORMS ARE EXPECTED TO REMAIN BELOW SEVERE LEVELS THROUGH THE
EARLY MORNING HOURS..ALTHOUGH BRIEF GUSTY WINDS AND DANGEROUS
LIGHTNING MAY STILL OCCUR.

Special weather statement, Jun 20, 4:23 AM CDT, 2 hours 51 minutes before

ARZ008-009-017-018-026>028-MOZ113-115-TNZ001>004-019>021-048>054-
200945-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MEMPHIS TN
423 AM CDT SAT JUN 20 1998

THE SEVERE THUNDERSTORM WATCH WHICH WAS IN EFFECT FOR PARTS OF THE
MEMPHIS COUNTY WARNING AREA HAS BEEN CLEARED. THIS INCLUDES NORTHEAST
ARKANSAS..THE MISSOURI BOOTHEEL AND MUCH OF WEST TENNESSEE.

THE FOLLOWING COUNTIES ARE NO LONGER IN THE WATCH...
IN ARKANSAS

   ...CLAY... CRAIGHEAD... GREENE... LAWRENCE... MISSISSIPPI
   ...POINSETT... RANDOLPH

IN MISSOURI

   ...DUNKLIN... PEMISCOT

IN TENNESSEE

   ...CARROLL... CHESTER... CROCKETT... DYER... GIBSON... HAYWOOD
   ...HENDERSON... HENRY... LAKE... LAUDERDALE... MADISON... OBION
   ...TIPTON... WEAKLEY

THUNDERSTORMS ARE EXPECTED TO REMAIN BELOW SEVERE LEVELS THROUGH THE
EARLY MORNING HOURS..ALTHOUGH BRIEF GUSTY WINDS AND DANGEROUS
LIGHTNING MAY STILL OCCUR.

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 20, 1:31 AM CDT	Severe Thunderstorm Warning	MEG	Lake	34 min
Jun 20, 1:55 AM CDT	Severe Thunderstorm Warning	MEG	Dyer, Obion	45 min

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; radar from the NEXRAD Level II archive.