Alert archive / Louisiana / Flash Flood Warnings in 1992

Flash Flood Warning 2, NWS Shreveport, LA

March 5, 1992De Soto Parish, Louisiana

NWS Shreveport, LA issued this flash flood warning at Mar 5, 1992, 12:55 AM CST for De Soto Parish, Louisiana. It was in force for 4 hr.

The area

The counties it named.

The facts

Issued
Mar 5, 1992, 12:55 AM CST (06:55 UTC)
Expired
Mar 5, 1992, 4:30 AM CST
In force
4 hr
Issued by
NWS Shreveport, LA
Area
Whole counties

County De Soto Parish, LA

The nearest sounding before it

Longview/Gregg, TX (KGGG), launched 00:00Z, 6.9 hours before the alert went out and 88 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, Longview/Gregg, TX at 00:00Z on 1992-03-05Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 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, Longview/Gregg, TX at 00:00Z on 1992-03-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 399 square meters per square second.1939587897Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
804 m above ground
0-6 km bulk shear
71 kt
0-1 km storm-relative helicity
399 m²/s²
0-3 km storm-relative helicity
381 m²/s²
Significant tornado parameter
0.0
Supercell composite
-0.2

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KSHV 050656
FFWSHV
LAC031-051045-
 
BULLETIN - EBS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SHREVEPORT LA
1255 AM CST THU MAR 5 1992
 
THE NATIONAL WEATHER SERVICE IN SHREVEPORT HAS ISSUED A
FLASH FLOOD WARNING EFFECTIVE UNTIL  445 AM CST
FOR PEOPLE IN THE FOLLOWING LOCATIONS..
 
IN NORTHWEST LOUISIANA
 
   ...DESOTO PARISH
 
AT 1245 AM CST THE NATIONAL WEATHER SERVICE RADAR IN SHREVEPORT
SHOWED SEVERAL THUNDERSTORMS THAT WERE PRODUCING GUSTY WINDS TO
40 MPH AND BRIEF HEAVY RAINS BEGINNING TO ENTER THE WARNED AREA.
THIS AREA RECEIVED A TWO TO FOUR INCH RAIN DURING THE PREVIOUS
12 HOURS. THE ADDITIONAL HEAVY RAIN WILL ALL BE RUNOFF AS THE
GROUND IS SATURATED...THUS FLOODING WILL DEVELOP RAPIDLY...ESPECIALLY
IN LOW LYING AREAS AND NEAR STREAMS AND BAYOUS.
 
AT 1245 AM CST THE NATIONAL WEATHER SERVICE RADAR IN SHREVEPORT
SHOWED THE STRONGER THUNDERSTORMS TO BE LOCATED IN A 15 MILE WIDE
AREA THAT EXTENDED FROM MARTINSVILLE TEXAS TO HUNTER LOUISIANA.
THESE STORMS WERE WITHIN A 35 MILE WIDE AREA OF SHOWERS AND
THUNDERSTORMS THAT EXTENDED FROM EL DORADO ARKANSAS ACROSS
HEFLIN LOUISIANA TO EAST OF LUFKIN TEXAS.
 
MOVEMENT WAS NORTHEAST NEAR 25 MILES AN HOUR.
 
ALSO...A LARGE AREA OF SHOWERS AND THUNDERSTORMS WAS NOTED OVER
SOUTHEAST ARKANSAS AND EASTERN LOUISIANA...THE TRAILING EDGE OF
WHICH EXTENDED FROM NEAR WARREN ARKANSAS TO CALHOUN LOUISIANA TO
COLFAX LOUISIANA.
 
MOVEMENT WAS EAST NORTHEAST NEAR 40 MILES AN HOUR.
 
BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE
THE DANGERS OF FLOODS AND FLASH FLOODS.  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, Mar 4, 7:03 PM CST, 5 hours 52 minutes before
OKZ040-021-034-TXZ022-023-027-028-032-033-ARZ009-010-011-016-LAZ001-
002-003-004-005-006-050230-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SHREVEPORT LA
640 PM CST WED MAR 4 1992

...FLASH FLOOD WATCH FOR EAST TEXAS AND SOUTHWEST ARKANSAS TONIGHT...

AT 640 PM NATIONAL WEATHER SERVICE RADAR IN SHREVEPORT INDICATED A LARGE
BAND OF SHOWERS AND THUNDERSTORMS EXTENDING FROM SOUTH ARKANSAS ACROSS MUCH
OF NORTH AND CENTRAL LOUISIANA AND EAST CENTRAL TEXAS. EMBEDDED THUNDERSTORMS
WERE PRODUCING MODERATE TO HEAVY RAINFALL. RAINFALL AMOUNTS OF ONE TO TWO
INCHES ALONG WITH GUSTY WINDS OF 25 TO 35 MPH AND OCCASSIONAL LIGHTNING ARE
LIKELY WITHIN THIS AREA. THE RAIN WAS EAST OF A LINE FROM PRESCOTT ARKANSAS
TO MINDEN LOUISIANA TO MANSFIELD ON TO NACOGADOCHES TEXAS AND CROCKETT.

MOVEMENT OF THE NORTHERN PORTION WAS TO THE EAST AT 25 MPH WHILE THE
SOUTH PORTION WAS MOVING EAST AT 15 MPH.

RAIN HAS ENDED OVER NORTHEAST TEXAS AND ADJACENT AREAS OF SOUTHEAST
OKLAHOMA AND SOUTHWEST ARKANSAS. HOWEVER STRONG TO SEVERE THUNDERSTORMS
WERE DEVELOPING OVER NORTH CENTRAL TEXAS AND WERE MOVING EAST. THESE STORMS
WILL APPROACH THE ARKLATEX AROUND MIDNIGHT AND SPREAD OVER THE AREA TONIGHT.
THUS...SOME STORMS MAY REACH SEVERE INTENSITY ALONG WITH HEAVY RAINFALL
TONIGHT.

SMALL STREAMS ARE ON THE RISE AND HIGH WATER EXISTS ON MOST AREA SMALL
STREAMS AND THE SOIL IS NEAR SATURATION. CONSEQUENTLY ADDITIONAL RAINFALL
OVERNIGHT WILL BE ALKMOST TOTAL RUNOFF AND LOWLAND FLOODING WILL DEVELOP.
Special weather statement, Mar 4, 8:30 PM CST, 4 hours 25 minutes before
OKZ040-021-034-TXZ022-023-027-028-032-033-ARZ009-010-011-016-LAZ001-
002-003-004-005-006-050430-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SHREVEPORT LA
830 PM CST WED MAR 4 1992

...FLASH FLOOD WATCH FOR EAST TEXAS AND SOUTHWEST ARKANSAS TONIGHT...
...STRONG THUNDERSTORM LOCATED NEAR CENTER TEXAS...

AT 830 PM NATIONAL WEATHER SERVICE RADAR IN SHREVEPORT CONTINUED TO SHOW
A BAND OF SHOWERS AND THUNDERSTORMS EXTENDING FROM SOUTH ARKANSAS ACROSS MUCH
OF NORTH AND CENTRAL LOUISIANA AND EAST CENTRAL TEXAS. A STRONG THUNDERSTORM
WAS LOCATED NEAR CENTER TEXAS PRODUCING VERY HEAVY RAINFALL AND STRONG GUSTY
WINDS. OTHER EMBEDDED THUNDERSTORMS PRODUCING HEAVY RAINFALL WERE LOCATED NEAR
SAN AUGUSTINE AND HEMPHILL TEXAS AS WELL AS JUST NORTH OF MANY LOUISIANA.

THE MOVEMENT OF THIS AREA OF SHOWERS AND THUNDERSTORMS HAS SLOWED DOWNED
IN THE PAST TWO HOURS AND NOW APPREARS TO BE STATIONARY. THE AREA WAS EAST
OF A LINE FROM EL DORADO ARKANSAS TO SHREVEPORT ON TO LUFKIN TEXAS.
.
OTHER STRONG THUNDERSTORMS WERE LOCATED OVER NORTHEAST TEXAS WEST OF LINE
FROM ATHENS TEXAS TO PARIS. MOVEMENT WAS TO THE EAST AT 25 MPH. SOME OF THESE
STORMS HAVE PRODUCED LARGE HAIL ALONG WITH VERY HEAVY RAINFALL.

SMALL STREAMS ARE ON THE RISE AND HIGH WATER EXISTS ON MOST AREA SMALL
STREAMS AND THE SOIL IS NEAR SATURATION. CONSEQUENTLY ADDITIONAL RAINFALL
OVERNIGHT WILL BE ALMOST TOTAL RUNOFF AND LOWLAND FLOODING WILL DEVELOP.
Special weather statement, Mar 4, 9:57 PM CST, 2 hours 58 minutes before
OKZ040-021-034-TXZ022-023-027-028-032-033-ARZ009-010-011-016-LAZ001-
002-003-004-005-006-050530-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SHREVEPORT LA
1000 PM CST WED MAR 4 1992

...STRONG THUNDERSTORMS OVER NORTHEAST TEXAS...

AT 1000 PM NATIONAL WEATHER SERVICE RADAR IN SHREVEPORT SHOWED A BAND OF
SHOWERS AND THUNDERSTORMS OVER NORTHEAST TEXAS. THE LEADING EDGE EXTENDED
FROM JUST EAST OF CLARKSVILLE TEXAS TO DANGERFIELD TO JUST NORTHWEST
OF LONGVIEW. MOVEMENT WAS TO THE EAST AT 30 MPH. HEAVY RAINFALL...SMALL
HAIL AND STRONG GUSTY WINDS ARE POSSIBLE WITH THESE STORMS.

ELSEWHERE SHOWERS AND THUNDERSTORMS CONTINUE OVER MUCH OF NORTH LOUISIANA
...SOUTH ARKANSAS...AND EAST CENTRALP TEXAS. THIS AREA WAS NEARLY
STATIONARY WITH MODERATE TO HEAVY RAINFALL OCCURRING.

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 5, 3:30 PM CSTSevere Thunderstorm WarningSHVNatchitoches, Sabine60 min

Nearby

Flash Flood Warnings in Louisiana, 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.