Alert archive / Tennessee / Flash Flood Warnings in 1992
Flash Flood Warning 11, NWS Memphis, TN
NWS Memphis, TN issued this flash flood warning at Aug 20, 1992, 3:22 PM CDT for Shelby County, Tennessee. It was in force for 68 min.
The area
The counties it named.
The facts
- Issued
- Aug 20, 1992, 3:22 PM CDT (20:22 UTC)
- Expired
- Aug 20, 1992, 4:30 PM CDT
- In force
- 68 min
- Issued by
- NWS Memphis, TN
- Area
- Whole counties
County Shelby County, TN
The nearest sounding before it
Paducah/Barkley, KY (KPAH), launched 12:00Z, 8.4 hours before the alert went out and 236 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
- 55 J/kg
- Mixed-layer CIN
- -43 J/kg
- Mixed-layer LCL
- 651 m above ground
- 0-6 km bulk shear
- 4 kt
- 0-1 km storm-relative helicity
- 9 m²/s²
- 0-3 km storm-relative helicity
- -54 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KMEM 202025 FFWMEM TNC157-202130- BULLETIN - EBS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE MEMPHIS TN 322 PM CDT THU AUG 20 1992 THE NATIONAL WEATHER SERVICE IN MEMPHIS HAS ISSUED A FLASH FLOOD WARNING EFFECTIVE UNTIL 430 PM CDT FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN WEST TENNESSEE ...SHELBY COUNTY AT 320 PM THUNDERSTORMS WITH TORRENTIAL RAINS WERE OVER MUCH OF SHELBY COUNTY WITH THE HEAVIEST RAINFALL OVER MEMPHIS NORTHWARD TO AROUND BARTLETT AND RALEIGH. THESE STORMS HAVE SHOWN LITTLE MOVEMENT SO FLOODING IS LIKELY...ESPECIALLY ON LOW LYING STREETS AND ALONG SMALLER RIVERS AND STREAMS. A FLASH FLOOD WARNING MEANS THAT FLOODING IS OCCURRING OR IS IMMINENT. MOST FLASH FLOOD DEATHS OCCUR IN AUTOMOBILES. DO NOT ATTEMPT TO CROSS BRIDGES...DIPS...OR LOW SPOTS IF WATER COVERS THE ROADWAY. NEVER TRY TO CROSS A FLOWING STREAM...EVEN A SMALL ONE...ON FOOT. TO ESCAPE RISING WATER MOVE UP 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
Special weather statement, Aug 20, 1:05 PM CDT, 2 hours 17 minutes before
TNZ012-013-014-015-MSZ001-004-ARZ012-013-014-201900- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MEMPHIS TN 103 PM CDT THU AUG 20 1992 ...STRONG THUNDERSTORNS ERUPTING OVER THE MID SOUTH... AT 1 PM THIS AFTERNOON STRONG THUNDERSTORMS WERE COVERING SOUTHWEST TENNESSEE...NORTHERN MISSISSIPPI AND NORTHEAST ARKANSAS. THESE STORMS HAVE PRODUCED SMALL HAIL AND TORRENTIAL RAINFALL OVER AND AROUND MEMPHIS TENNESSEE WITH STREET FLOODING REPORTED IN THE SHELBY DRIVE ANHICKORY HILL AREAS. LIGHTNING STRIKES HAVE ALSO CAUSED POWER OUTAGES. STORMS CONTINUED TO DEVELOP OVER SHELBY COUNTY AND FAYETTE COUNTIES TENNESSEE AROUND MEMPHIS AND ROSSVILLE WITH OTHER STRONG STORMS IN NORTHERN MARSHALL COUNTY MISSISSIPPI AND CRITTENDEN AND CROSS COUNTIES OF NORTHEAST ARKANSAS. THESE STORMS ARE MOVING VERY SLOWLY WHILE THEY DROP HEAVY RAIN...THEREFORE THEY MAY CAUSE FLOODING IN LOW LYING AREAS AND MAY CAUSE SMALLER RIVERS AND STREAMS TO OVERFLOW. PERSONS OUT DRIVING OR WALKING SHOULD NOT CROSS WATER COVERED ROADS BUT INSTEAD FIND AN ALTERNATE ROUTE OF TRAVEL. WHEN YOU ARE NEAR RISING STREAMS LEAVE THE AREA AND SEEK HIGHER GROUND.
Special weather statement, Aug 20, 1:08 PM CDT, 2 hours 14 minutes before
TNZ012-013-014-015-MSZ001-004-ARZ012-013-014-201900- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MEMPHIS TN 103 PM CDT THU AUG 20 1992 ...STRONG THUNDERSTORNS ERUPTING OVER THE MID SOUTH... AT 1 PM THIS AFTERNOON STRONG THUNDERSTORMS WERE COVERING SOUTHWEST TENNESSEE...NORTHERN MISSISSIPPI AND NORTHEAST ARKANSAS. THESE STORMS HAVE PRODUCED SMALL HAIL AND TORRENTIAL RAINFALL OVER AND AROUND MEMPHIS TENNESSEE WITH STREET FLOODING IN THE SHELBY DRIVE AND HICKORY HILL AREAS. LIGHTNING STRIKES HAVE ALSO CAUSED POWER OUTAGES. STORMS CONTINUED TO DEVELOP OVER SHELBY COUNTY AND FAYETTE COUNTIES TENNESSEE AROUND MEMPHIS AND ROSSVILLE WITH OTHER STRONG STORMS IN NORTHERN MARSHALL COUNTY MISSISSIPPI AND CRITTENDEN AND CROSS COUNTIES OF NORTHEAST ARKANSAS. THESE STORMS ARE MOVING VERY SLOWLY WHILE THEY DROP HEAVY RAIN...THEREFORE THEY MAY CAUSE FLOODING IN LOW LYING AREAS AND MAY CAUSE SMALLER RIVERS AND STREAMS TO OVERFLOW. PERSONS OUT DRIVING OR WALKING SHOULD NOT CROSS WATER COVERED ROADS BUT INSTEAD FIND AN ALTERNATE ROUTE OF TRAVEL. WHEN YOU ARE NEAR RISING STREAMS LEAVE THE AREA AND SEEK HIGHER GROUND.
Special weather statement, Aug 20, 2:07 PM CDT, 1 hour 15 minutes before
TNZ012-013-014-015-MSZ001-004-ARZ012-013-014-202000- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MEMPHIS TN 205 PM CDT THU AUG 20 1992 ...HEAVY THUNDERSTORMS CONTINUE OVER THE MID SOUTH... AT 2 PM STRONG THUNDERSTORMS CONTINUED OVER SOUTHWEST TENNESSEE...EAST ARKANSAS AND NORTHERN MISSISSIPPI. STRONGEST ACTIVITY WAS IN CRITTENDEN COUNTY ARKANSAS NEAR TURRELL WHERE TORRENTIAL RAINS WERE FALLING. OTHER STRONG STORMS WERE IN ST FRANCIS AND LEE COUNTIES OF ARKANSAS...SOUTHEAST SHELBY COUNTY TENNESSEE AROUND MEMPHIS AND IN DESOTO AND MARSHALL COUNTIES OF MISSISSIPPI NEAR HERNANDO AND HOLLY SPRINGS. THESE STORMS HAVE A HISTORY OF PRODUCING VERY HEAVY RAINFALLS AND SMALL HAIL. BECAUSE OF THEIR SLOW MOVEMENT THEY HAVE PRODUCED STREET FLOODING IN LOW LYING AREAS IN MEMPHIS TENNESSEE AND FORREST CITY ARKANSAS. STORMS HAVE ALSO PRODUCED GUSTY WINDS WITH SMALL TREE LIMBS REPORTED BLOWN DOWN OVER SOUTHWEST TENNESSEE. PERSONS, MUST STAY ALERT FOR DANGEROUS WEATHER THIS AFTERNOON AND SEEK IMMEDIATE SHELTER WHEN STORMS APPROACH. IF YOU ARE DRIVING IN A THUNDERSTORM BE PREPARED FOR FLOODED STREETS AND REMEMBER NEVER TO DRIVE ON ROADS COVERED WITH WATER.
Nearby
Flash Flood Warnings in Tennessee, 1992Every flash flood warning in 1992
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.