Alert archive / Louisiana / Flash Flood Warnings in 1992

Flash Flood Warning 7, NWS Shreveport, LA

May 12, 1992De Soto Parish, Louisiana; Panola County, Texas

NWS Shreveport, LA issued this flash flood warning at May 12, 1992, 3:42 AM CDT for De Soto Parish, Louisiana; Panola County, Texas. It was in force for 3 hr.

The area

The counties it named.

The facts

Issued: May 12, 1992, 3:42 AM CDT (08:42 UTC)
Expired: May 12, 1992, 6:45 AM CDT
In force: 3 hr
Issued by: NWS Shreveport, LA
Area: Whole counties

Counties De Soto Parish, LA, Panola County, TX

The nearest sounding before it

Longview/Gregg, TX (KGGG), launched 00:00Z, 8.7 hours before the alert went out and 61 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: 1833 J/kg
Mixed-layer CIN: -9 J/kg
Mixed-layer LCL: 924 m above ground
0-6 km bulk shear: 28 kt
0-1 km storm-relative helicity: 200 m²/s²
0-3 km storm-relative helicity: 319 m²/s²
Significant tornado parameter: 1.7
Supercell composite: 8.5

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KSHV 120848
FFWSHV
LAC031-TXC365-121145-
 
BULLETIN - EBS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SHREVEPORT LA
342 AM CDT TUE MAY 12 1992
 
THE NATIONAL WEATHER SERVICE IN SHREVEPORT HAS ISSUED A
FLASH FLOOD WARNING EFFECTIVE UNTIL  645 AM CDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS..
 
IN NORTHWEST LOUISIANA
 
   ...DESOTO PARISH
 
 
IN NORTHEAST TEXAS
 
   ...EASTERN PANOLA COUNTY
 
AT 340 AM CDT THE NATIONAL WEATHER SERVICE RADAR IN SHREVEPORT SHOWED
A BAND OF THUNDERSTORMS...ABOUT 20 MILES WIDE...THAT EXTENDED FROM
NEAR COUSHATTA LOUISIANA TO 10 MILES SOUTHEAST OF CARTHAGE TEXAS.
THESE STORMS WERE WITHIN A LARGE AREA OF SHOWERS AND THUNDERSTORMS
THE TRAILING EDGE OF WHICH EXTENDED FROM STRONG ARKANSAS TO SHREVEPORT
LOUISIANA TO NEAR NACOGDOCHES TEXAS.
 
MOVEMENT WAS EAST SOUTHEAST NEAR 35 MILES AN HOUR.
 
THUNDERSTORMS HAD PERSISTED OVER THE WARNED AREA FOR THE PAST FOUR
HOURS. SOME OF THE STORMS WERE ACCOMPANIED BY HEAVY RAINS AND
RAINFALL TOTALS OVER THE WARNED AREA HAVE LIKELY EXCEEDED THREE
INCHES. AS ADDITIONAL RAINS OCCUR FLOODING WILL LIKELY DEVELOP.
 
BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE
THE DANGERS OF FLOODS AND FLASH FLOZODS.  IF FLASH 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

Special weather statement, May 12, 1:13 AM CDT, 2 hours 29 minutes before

OKZ040-021-034-TXZ022-023-027-028-032-033-ARZ009-010-011-016-LAZ001-
002-003-004-005-006-120715

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SHREVEPORT LA
110 AM CDT TUE MAY 12 1992

...LINE OF THUNDERSTORMS CONTINUE ACROSS SOUTH ARKANSAS...NORTH
LOUISIANA AND NORTHEAST TEXAS...

WEATHER SERVICE RADAR IN SHREVEPORT SHOWED A LINE OF THUNDERSTORMS
WITH THE LEADING EDGE EXTENDING FROM NEAR WARREN ARKANSAS TO BERNICE
LOUISIANA ON TO COUSHATTA AND LOGANSPORT ON TO TENAHA TEXAS. MOVEMENT
OF THE LINE HAS ACCELERATED TO NEAR 40 MPH.

HIGH WINDS OF 40 AND 50 MPH MAY OCCUR ALONG THE LEADING EDGE CAUSING
POSSIBLE TREE DAMAGE IN UNION...LINCOLN...BIENVILLE...RED RIVER...AND
DESOTO PARISHES IN NORTH LOUISIANA. HEAVY RAIN AND FREQUENT LIGHTING
WILL ALSO OCCUR.

THE THREAT OF THUNDERSTORMS WILL CONTINUE OVERNIGHT WITH A FEW STORMS
REACHING SEVERE INTENSITY. SEVERE THUNDERSTORMS PRODUCE HIGH AND
POSSIBLY DAMAGING WINDS...FLOOD PRODUCING RAINFALL AND FREQUENT LIGHTING.

Special weather statement, May 12, 1:48 AM CDT, 1 hour 54 minutes before

OKZ040-021-034-TXZ022-023-027-028-032-033-ARZ009-010-011-016-LAZ001-
002-003-004-005-006-120755

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SHREVEPORT LA
145 AM CDT TUE MAY 12 1992

...LINE OF THUNDERSTORMS CONTINUE ACROSS SOUTH ARKANSAS...NORTH
LOUISIANA AND NORTHEAST TEXAS...

WEATHER SERVICE RADAR IN SHREVEPORT SHOWED A LINE OF THUNDERSTORMS
WITH THE LEADING EDGE EXTENDING FROM NEAR MONTICELLO ARKANSAS TO
FARMERVILLE LOUISIANA TO JONESBORO AND CONVERSE AND ON TO CENTER AND
LONGVIEW TEXAS. MOVEMENT WAS EAST SOUTHEAST AT 45 MPH.

HIGH WINDS OF 40 AND 50 MPH MAY OCCUR ALONG THE LEADING EDGE CAUSING
POSSIBLE TREE DAMAGE ACROSS UNION...OUACHITA...JACKSON...WINN...
NATCHITOCHES...AND SABINE PARISHES IN NORTH LOUISIANA. ALSO VERY
HEAVY RAINFALL AND FREQUENT LIGHTNING WILL OCCUR.

STRONG THUNDERSTORMS PRODUCING VERY HEAVY RAINFALL WERE LOCATED
IN NORTHEAST TEXAS 15 MILES SOUTH OF MARSHALL AND NEAR LONGVIEW.

THE THREAT OF THUNDXERSTORMS WILL CONTINUE OVERNIGHT WITH A FEW
STORMS MAY REACH SEVERE INTENSITY. SEVERE STORMS CAN PRODUCE HIGH
AND DAMAGING WINDS...HAIL...FLOOD PRODUCING RAINFALL...AND FREQUENT
LIGHTNING.

Special weather statement, May 12, 2:35 AM CDT, 1 hour 7 minutes before

OKZ040-021-034-TXZ022-023-027-028-032-033-ARZ009-010-011-016-LAZ001-
002-003-004-005-006-120830

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SHREVEPORT LA
230 AM CDT TUE MAY 12 1992

...TORNADO WATCH REMAINS IN EFFECT UNTIL 3 AM FOR NORTH LOUISIANA...PARTS
OF NORTHEAST TEXAS AND SOUTHEAST ARKANSAS...

WEATHER SERVICE RADAR IN SHREVEPORT SHOWED A LINE OF THUNDERSTORMS
WITH THE LEADING EDGE EXTENDING FROM NEAR LAKE VILLAGE ARKANSAS TO
RAYILLE LOUISIANA TO GEORGETOWN AND FLORIEN ON TO SAN AUGUSTINE TEXAS.
HEAVY RAIN WAS LOCATED NEAR GEORGETOWN. MOVEMENT WAS EAST SOUTHEAST AT
35 MPH.

HIGH WINDS OF 40 AND 50 MPH MAY OCCUR ALONG THE LEADING EDGE CAUSING
POSSIBLY CAUSING DAMAGE TO TREE LIMBS AND CAUSING POWER OUTAGES.
THIS BAND WILL CONTINUE TO EFFECT PARISHES IN NORTHEAST AND CENTRAL
AND LOUISIANA. ALSO HEAVY RAINFALL AND LIGHTING WILL OCCUR.
.
STRONG THUNDERSTORMS WERE PRODUCING VERY HEAVY RAINFALL IN NORTHEAST
TEXAS AND NORTHWEST LOUISIANA FROM NEAR KEITHVILLE LOUISIANA TO
CARTHAGE TEXAS.

THE THREAT OF SHOWERS AND THUNDERSTORMS WILL CONTINUE OVERNIGHT WITH
THUNDERSTORMS PRODUCING LOCALLY HEAVY RAINFALL...STRONG GUSTY WINDS...
AND DANGEROUS LIGHTNING.

Special weather statement, May 12, 2:43 AM CDT, 59 minutes before

OKZ040-021-034-TXZ022-023-027-028-032-033-ARZ009-010-011-016-LAZ001-
002-003-004-005-006-120830

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SHREVEPORT LA
230 AM CDT TUE MAY 12 1992

...TORNADO WATCH REMAINS IN EFFECT UNTIL 3 AM FOR NORTH LOUISIANA...PARTS
OF NORTHEAST TEXAS AND SOUTHEAST ARKANSAS...

WEATHER SERVICE RADAR IN SHREVEPORT SHOWED A LINE OF THUNDERSTORMS
WITH THE LEADING EDGE EXTENDING FROM NEAR LAKE VILLAGE ARKANSAS TO
RAYVILLE LOUISIANA TO GEORGETOWN AND FLORIEN ON TO SAN AUGUSTINE TEXAS.
HEAVY RAIN WAS LOCATED NEAR GEORGETOWN. MOVEMENT WAS EAST SOUTHEAST AT
45 MPH.

HIGH WINDS OF 40 AND 50 MPH MAY OCCUR ALONG THE LEADING EDGE POSSIBLY
CAUSING DAMAGE TO TREE LIMBS AND POWER OUTAGES. THIS BAND WILL CONTINUE
TO EFFECT PARISHES IN NORTHEAST AND CENTRAL LOUISIANA. ALSO HEAVY
RAINFALL AND LIGHTING WILL OCCUR.
.
STRONG THUNDERSTORMS WERE PRODUCING VERY HEAVY RAINFALL IN NORTHEAST
TEXAS AND NORTHWEST LOUISIANA FROM NEAR KEITHVILLE LOUISIANA TO
CARTHAGE TEXAS.

THE THREAT OF SHOWERS AND THUNDERSTORMS WILL CONTINUE OVERNIGHT WITH
THUNDERSTORMS PRODUCING LOCALLY HEAVY RAINFALL...STRONG GUSTY WINDS...
AND DANGEROUS LIGHTNING OVER THE SOUTHEAST HALF OF THE ARKLATE(X.

Local storm report, May 12, 2:57 AM CDT, 45 minutes before

PRELIMINARY STORM REPORTS
NATIONAL WEATHER SERVICE SHREVEPORT LA
300 AM CDT TUE MAY 12 1992

              ...STORM REPORTS FOR MONDAY MAY 11TH...

 TIME CDT   PARISH/CTY   ST   EVENT
 720 PM     MCCURTAIN    OK   ONE INCH HAIL 3 MILES EAST OF RINGOLD.
 735 PM     MCCURTAIN    OK   GOLF BALL SIZE HAIL ON HIGHWAY 7 5 MILES
                              SOUTH OF BATTIEST.
 815 PM     MCCURTAIN    OK   ONE INCH HAIL AND HIGH WINDS AT TOM.
 838 PM     MCCURTAIN    OK   QUARTER SIZE HAIL ON HIGHWAY 32 3 MILES
                              EAST OF TOM.
 915 PM     SEVIER       AR   NICKLE SIZE HAIL...50 MPH WINDS...TREE
                              LIMBS BLOWN DOWN 3 MILES SOUTH OF CENTRAL.
 930 PM     LITTLE RIVER AR   NUMEROUS TREES BLOWN DOWN NEAR FOREMAN...
 940 PM     BOWIE        TX   QUARTER SIZE HAIL...TREES DOWN NEAR MAUD.
                              HEAVY RAIN ALSO.
 942 PM     BOWIE        TX   MARBLE SIZE HAIL AND HIGH WINDS AT HOOKS.
 947 PM     CASS         TX   GOLF BALL SIZE HAIL 8 MILES EAST OF NAPLES
                              ON HIGHWAY 47.
 949 PM     LITTLE RIVER AR   ONE INCH HAIL NORTH OF FOREMAN.
1111 PM     MARION            ONE INCH HAIL ON HWY 49 2 MILES E OF JEFFERSON
1115 PM     MARION       TX   SEVERAL TREES BLOWN DOWN 5 MILES NORTHWEST
                              OF KELLYVILLE NEAR HURRICANE CREEK...ROADS
                              BLOCKED.
1115 PM     GREGG        TX   TORNADO SPOTTED ON GROUND ON HWY 31 8 MILES
                              WEST OF KILGORE.
1118 PM     MARION       TX   ONE INCH HAIL AND HIGH WINDS WEST SIDE OF
                              LINDEN.
1128 PM     MARION       TX   SEVERAL TREES BLOWN DOWN 3 MILES WEST OF
                              SMITHLAND.
1129 PM     GREGG        TX   TRUCK BLOWN OFF ROAD 8 MILES WEST OF KILGORE
                              TORNADO SPOTTED BRIEFLY ON GROUND.
1130 PM     HARRISON     TX   NUMEROUS TREES 2 MILES WEST OF HALLSVILLE
                              WINDS 70-80 MPH.
1140 PM     HARRISON     TX   NUMEROUS TREES DOWN IN 8 BLOCK AREA OF
                              EAST MARSHALL...SOME HOUSE DAMAGE FROM
                              FALLEN TREES. POWER OUT WINDS ESTIMATED AT
                              70-80 MPH.
1143 PM     HARRISON     TX   TORNADO 5 MILES S OF SCOTTSVILLE JUST S OF
                              I-20...TREES DOWN AND 1 MOBILE HOME DAMAGED.
1150 PM     HARRISON     TX   BARNS DAMAGED 5 MILES SW OF WASKOM...TREES
                              DOWN...FUNNEL CLOUD OBSERVED.
1152 PM     GREGG        TX   GOLF BALL SIZE HAIL 3 MILES WEST OF KILGORE
                              FUNNEL CLOUD SIGHTED...TOUCHDOWN UNKNOWN.
1155 PM     CADDO        LA   HIGHWAY 169 AT BLANCHARD BLOCKED BY DOWNED
                              TREES 2 MILES S OF BLANCHARD.
1156 PM     CADDO        LA   HIGHWAY 169 LOWERY RD BLOCKED 8 MILES NW OF
                              SHREVEPORT.
1158 PM     CADDO        LA   HIGHWAY 169 AT S LAKESHORE DR 7 MI WNW OF
                              SHREVEPORT BLOCKED BY DOWNED TREES...POWER
                              OUT.
           STORM REPORTS FOR TUE MAY 12 1992

1201 AM     CADDO        LA   NICKLE SIZE HAIL ON LAKESHORE DR 5 NW SHV
1202 AM     RUSK         TX   1 INCH HAIL 3 MI S OF TATUM 50 MPH WINDS.
1203 AM     CADDO        LA   TREES BLOCKING LA 538 AT 173 3 MI E OF
                              BLANCHARD...POWER OUT.
1205 AM     CADDO        LA   TREES BLOCKING LA 538 AT US-71
1214 AM     CADDO        LA   MARBLE SIZE HAIL IN SHREVE CITY/SHREVEPORT
1215 AM     CADDO        LA   COOK RD NEAR BETHANY...TREES DOWN FUNNEL
                              CLOUD SIGHTED...CAR BLOWN OFF ROAD.
1210 AM     BOSSIER      LA   TREES DOWN 5 MI E OF CURTIS NEAR HWY 157
1215 AM     BOSSIER      LA   1 INCH HAIL 3 MI SW OF BENTON...TREES DOWN
                              5 MILES SOUTH OF BENTON.

Special weather statement, May 12, 3:19 AM CDT, 23 minutes before

OKZ040-021-034-TXZ022-023-027-028-032-033-ARZ009-010-011-016-LAZ001-
002-003-004-005-006-120920

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SHREVEPORT LA
315 AM CDT TUE MAY 12 1992

...TORNADO WATCH NO LONGER IN EFFECT FOR NORTH LOUISIANA...SOUTHEAST
ARKANSAS AND NORTHEAST TEXAS...

SHOWERS AND THUNDERSTORMS CONTINUE OVER SOUTHEAST ARKANSAS ACROSS
NORTH LOUISIANA INTO NORTHEAST TEXAS. THE LEADING EDGE EXTENDED FROM
NEAR LAKE PROVIDENCE LOUISIANA TO WISNER...ALEXANDRIA AND LEESVILLE AND
INTO EAST TEXAS NEAR HEMPHILL AND GARRISON. MOVEMENT WAS TO THE EAST
SOUTHEAST AT 45 MPH.

STRONG GUSTY WINDS OF 35 TO 45 MPH ARE POSSIBLE ALONG THE LEADING EDGE
WITH LOCALLY HEAVY RAINFALL. ELSEWHERE VERY HEAVY RAINFALL WAS INDICATED
IN NORTHEAST TEXAS AND NORTHWEST LOUISIANA FROM NEAR CARTHAGE TEXAS TO
GRAND CANE LOUISIANA AND CASTOR. MOVEMENT WAS EAST SOUTHEAST AT 35 MPH.
.
THE THREAT OF SHOWERS AND THUNDERSTORMS WILL CONTINUE OVERNIGHT OVEfR
MAINLY THE SOUTHEAST SECTIONS OF THE ARKLATEX PRODUCING LOCALLY HEAVY
RAINFALL...STRONG GUSTY WINDS...AND LIGHTNING.

The office that day

Everything else NWS Shreveport, LA issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 11, 11:29 PM CDT	Tornado Warning	SHV	Bossier, Caddo	56 min
May 12, 4:58 AM CDT	Severe Thunderstorm Warning	SHV	Winn	32 min
May 11, 9:01 PM CDT	Severe Thunderstorm Warning	SHV	Cass	59 min
May 11, 9:01 PM CDT	Severe Thunderstorm Warning	SHV	Bowie	59 min
May 11, 10:54 PM CDT	Severe Thunderstorm Warning	SHV	Gregg, Harrison, Marion	66 min
May 11, 11:05 PM CDT	Tornado Warning	SHV	Gregg	40 min
May 11, 11:21 PM CDT	Tornado Warning	SHV	Harrison	64 min
May 11, 11:29 PM CDT	Tornado Warning	SHV	Gregg	56 min
May 11, 11:47 PM CDT	Severe Thunderstorm Warning	SHV	Rusk	58 min

Nearby

Flash Flood Warnings in Louisiana, 1992 Flash Flood Warnings in Texas, 1992 Every 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.