Alert archive / Louisiana / Flash Flood Warnings in 1990
Flash Flood Warning 39, NWS Shreveport, LA
NWS Shreveport, LA issued this flash flood warning at May 12, 1990, 11:14 PM CDT for Tensas Parish, Louisiana. It was in force for 3 hr.
The area
The counties it named.
The facts
- Issued
- May 12, 1990, 11:14 PM CDT (04:14 UTC)
- Expired
- May 13, 1990, 2:15 AM CDT
- In force
- 3 hr
- Issued by
- NWS Shreveport, LA
- Area
- Whole counties
County Tensas Parish, LA
The radar
The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.
The nearest sounding before it
Jackson, MS (KJAN), launched 00:00Z, 4.2 hours before the alert went out and 124 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
- 1 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 711 m above ground
- 0-6 km bulk shear
- 73 kt
- 0-1 km storm-relative helicity
- 60 m²/s²
- 0-3 km storm-relative helicity
- 149 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 KSHV 130415 FFWSHV LAC107-130715- BULLETIN - EBS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE SHREVEPORT LA 1114 PM CDT SAT MAY 12 1990 THE NATIONAL WEATHER SERVICE IN SHREVEPORT HAS ISSUED A FLASH FLOOD WARNING EFFECTIVE UNTIL 215 AM CDT FOR PEOPLE IN THE FOLLOWING LOCATIONS.. IN NORTHEAST LOUISIANA ...TENSAS PARISH AT 1105 PM CDT THE NATIONAL WEATHER SERVICE RADAR IN SHREVEPORT SHOWED A BAND OF SHOWERS AND THUNDERSTORMS THAT EXTENDED FROM NEAR VICKSBURG MISISSIPPI ACROSS NEWELLTON LOUISIANA TO SOUTH OF JENA LOUISIANA. WITHIN THE BAND THUNDERSTORMS THAT WERE PRODUCING GUSTY WINDS AND HEAVY RAINS NEAR ONE INCH WERE LOCATED SOUTHEAST OF WISNER AND SOUTHEAST OF NEWLIGHT LOUISIANA. MOVEMENT WAS SOUTHEAST NEAR 20 MPH. LOWLAND FLOODING CONTINUED OVER THE WARNED AREA IN RESPONSE TO THE SEVEN TO EIGHT INCHES OF RAIN THAT FELL OVER TENSAS PARISH BETWEEN 130 AND 930 PM. THE ADDITIONAL RAIN WILL ONLY AGGREVATE THE SITUATION. ELSEWHERE...PATCHY DENSE FOG CONTINUED TO DEVELOP OVER PARTS OF SOUTHWEST ARKANSAS...NORTHEAST TEXAS AND NORTH LOUISIANA. MOTORISTS ARE ADVISED TO EXERCISE CAUTION TONIGHT...ESPECIALLY NEAR STREAMS AND BAYOUS AND LOWLYING AREAS WHERE THE FOG MAY BE ESPECIALLY DENSE WITH VISIBILITY NEAR ZERO. 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, May 12, 7:29 PM CDT, 3 hours 45 minutes before
OKZ026-TXZ022-023-027-028-032-033-ARZ009-010-011-016-LAZ001-002- 003-004-005-006-130140- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SHREVEPORT LA 725 PM CDT SAT MAY 12 1990 ...A SEVERE THUNDERSTORM WARNING IS IN EFFECT UNTIL 745 PM CDT FOR CADDO AND DE SOTO PARISHES IN NORTHWEST LOUISIANA... ...THE SEVERE THUNDERSTORM WARNING FOR RUSK..PANOLA..AND HARRISON COUNTIES IN EAST TEXAS HAVE EXPIRED..HEAVIER STORMS HAVE MOVED EAST... ...A TORNADO WATCH IN EFFECT UNTIL 900 PM CDT FOR NORTH AND CENTRAL LOUISIANA AND EAST TEXAS... ...FLASH FLOOD WATCH IN EFFECT FOR EAST TEXAS AND NORTHWEST LOUSIANA FOR TONIGHT... ...FLASH FLOOD WARNING IN EFFECT UNTIL 945 PM CDT FOR PANOLA..RUSK.. AND SHEBLY COUNTIES IN EAST TEXAS... AT 725 PM CDT WEATHER SERVICE RADAR IN SHREVEPORT SHOWED A SEVERE THUNDERSTORM OVER SOUTHWEST CADDO PARISH NEAR FOUR FORKS MOVING TO THE EAST AT 35 TO 40 MPH. THIS STORM WAS WITHIN A BAND OF SHOWERS AND THUNDERSTORMS ABOUT 20 MILES WIDE THAT EXTENDED FROM NEAR SHREVEPORT LOUISIANA SOUTHWEST TO NEAR NACOGDOCHES AND CROCKETT TEXAS. RADAR ALSO SHOWED AN AREA OF SHOWERS AND THUNDERSTORMS ABOUT 50 MILES WIDE THAT EXTENDED FROM NEAR LAKE PROVIDENCE LOUISIANA AND ROLLING FORK AND VICKSBURG MISSISSIPPI SOUTHWEST INTO EASTERN LOUISIANA TO NEAR JENA. STRONG THUNDERSTORMS WITHIN THE AREA OVER LOUISIANA WERE NOTED NEAR TALLULAH SOUTHWEST TO NEAR WINNSBORO. THESE THUNDERSTORMS HAVE BEEN PRODUCING HEAVY RAINFALL..ST RONG AND GUSTY WINDS TO NEAR 50 MPH..AND FREQUENT LIGHTNING AS THEY MOVED TO THE EAST AT 40 MPH. THE HEAVY RAINS CAN CAUSE PONDING OF WATER IN STREETS..LOW LYING..AND POOR DRAINAGE AREAS.
Special weather statement, May 12, 8:37 PM CDT, 2 hours 37 minutes before
OKZ026-TXZ022-023-027-028-032-033-ARZ009-010-011-016-LAZ001-002- 003-004-005-006-130140- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SHREVEPORT LA 730 PM CDT SAT MAY 12 1990 ...A SEVERE THUNDERSTORM WARNING IS IN EFFECT UNTIL 745 PM CDT FOR CADDO AND DE SOTO PARISHES IN NORTHWEST LOUISIANA... ...THE SEVERE THUNDERSTORM WARNING FOR RUSK..PANOLA..AND HARRISON COUNTIES IN EAST TEXAS HAVE EXPIRED..HEAVIER STORMS HAVE MOVED EAST... ...A TORNADO WATCH IN EFFECT UNTIL 900 PM CDT FOR NORTH AND CENTRAL LOUISIANA AND EAST TEXAS... ...FLASH FLOOD WATCH IN EFFECT FOR EAST TEXAS AND NORTHWEST LOUSIANA FOR TONIGHT... ...FLASH FLOOD WARNING IN EFFECT UNTIL 945 PM CDT FOR PANOLA..RUSK.. AND SHEBLY COUNTIES IN EAST TEXAS... AT 725 PM CDT WEATHER SERVICE RADAR IN SHREVEPORT SHOWED A SEVERE THUNDERSTORM OVER SOUTHWEST CADDO PARISH NEAR FOUR FORKS MOVING TO THE EAST AT 35 TO 40 MPH. THIS STORM WAS WITHIN A BAND OF SHOWERS AND THUNDERSTORMS ABOUT 20 MILES WIDE THAT EXTENDED FROM NEAR SHREVEPORT LOUISIANA SOUTHWEST TO NEAR NACOGDOCHES AND CROCKETT TEXAS. RADAR ALSO SHOWED AN AREA OF SHOWERS AND THUNDERSTORMS ABOUT 50 MILES WIDE THAT EXTENDED FROM NEAR LAKE PROVIDENCE LOUISIANA AND ROLLING FORK AND VICKSBURG MISSISSIPPI SOUTHWEST INTO EASTERN LOUISIANA TO NEAR JENA. STRONG THUNDERSTORMS WITHIN THE AREA OVER LOUISIANA WERE NOTED NEAR TALLULAH SOUTHWEST TO NEAR WINNSBORO. THESE THUNDERSTORMS HAVE BEEN PRODUCING HEAVY RAINFALLb..STRONG AND GUSTY WINDS TO NEAR 50 MPH..AND FREQUENT LIGHTNING AS THEY MOVED TO THE EAST AT 40 MPH. THE HEAVY RAINS CAN CAUSE PONDING OF WATER IN STREETS..LOW LYING..AND POOR DRAINAGE AREAS.
Special weather statement, May 12, 8:38 PM CDT, 2 hours 36 minutes before
OKZ026-TXZ022-023-027-028-032-033-ARZ009-010-011-016-LAZ001-002- 003-004-005-006-130249- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SHREVEPORT LA 835 PM CDT SAT MAY 12 1990 ...A SEVERE THUNDERSTORM WARNING IN EFFECT UNTIL 815 PM CDT FOR SABINE PARISH IN NORTHWEST LOUISIANA... ...A SEVERE THUNDERSTORM WARNING IN EFFECT UNTIL 845 PM CDT FOR SHELBY COUNTY IN EAST TEXAS... ...A TORNADO WATCH IN EFFECT UNTIL 900 PM CDT FOR NORTH AND CENTRAL LOUISIANA AND EAST TEXAS... ...FLASH FLOOD WATCH IN EFFECT FOR EAST TEXAS AND NORTHWEST LOUSIANA FOR TONIGHT... ...FLASH FLOOD WARNING IN EFFECT UNTIL 945 PM CDT FOR PANOLA..RUSK..AND SHEBLY COUNTIES IN EAST TEXAS AND TENSAS PARISH IN NORTHEAST LOUISIANA... AT 825 PM CDT WEATHER SERVICE RADAR IN SHREVEPORT SHOWED A SEVERE THUNDERSTORM OVER EXTREME SOUTHEAST SHELBY COUNTY TEXAS MOVING INTO WESTERN SABINE PARISH OVER TOLEDO BEND LAKE SOUTHWEST OF ZWOLLE. THE SEVERE THUNDERSTORM WAS LOCATED WITHIN A BAND OF SHOWERS AND THUNDERSTORMS ABOUT 30 MILES WIDE THAT EXTENDED FROM NEAR COUSHATTA SOUTHWEST TO NEAR MANY LOUISIANA ACROSS TOLEDO BEND LAKE INTO EAST TEXAS TO NEAR LUFKIN. THIS BAND HAS BEEN PRODUCING VERY HEAVY RAINS. RADAR ALSO SHOWED A BAND OF SHOWERS AND THUNDERSTORMS OVER NORTHEAST LOUISIANA AND WESTERN MISSISSIPPI THAT EXTENDED FROM NEAR VICKSBURG SOUTHWEST TO NEAR ST JOSEPH..MARKSVILLE..AND ALEXANDRIA LOUISIANA.SOUTHWEST TO NEAR NACOGDOCHES AND CROCKETT TEXAS. VERY cHEAVY RAINS WITH THE AREA OVER TENSAS PARISH WAS PRODUCING FLOODING OF STREETS AND LOW LYING AREAS. THE SHOWERS AND THUNDERSTORMS WERE MOVING TO THE EAST AT NEAR 40 MPH.
Special weather statement, May 12, 8:45 PM CDT, 2 hours 29 minutes before
OKZ026-TXZ022-023-027-028-032-033-ARZ009-010-011-016-LAZ001-002- 003-004-005-006-130249- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SHREVEPORT LA 835 PM CDT SAT MAY 12 1990 ...A SEVERE THUNDERSTORM WARNING IN EFFECT UNTIL 815 PM CDT FOR SABINE PARISH IN NORTHWEST LOUISIANA... ...A SEVERE THUNDERSTORM WARNING IN EFFECT UNTIL 845 PM CDT FOR SHELBY COUNTY IN EAST TEXAS... ...A TORNADO WATCH IN EFFECT UNTIL 900 PM CDT FOR NORTH AND CENTRAL LOUISIANA AND EAST TEXAS... ...FLASH FLOOD WATCH IN EFFECT FOR EAST TEXAS AND NORTHWEST LOUSIANA FOR TONIGHT... ...FLASH FLOOD WARNING IN EFFECT UNTIL 945 PM CDT FOR PANOLA..RUSK..AND SHEBLY COUNTIES IN EAST TEXAS AND TENSAS PARISH IN NORTHEAST LOUISIANA... AT 825 PM CDT WEATHER SERVICE RADAR IN SHREVEPORT SHOWED A SEVERE THUNDERSTORM OVER EXTREME SOUTHEAST SHELBY COUNTY TEXAS MOVING INTO WESTERN SABINE PARISH OVER TOLEDO BEND LAKE SOUTHWEST OF ZWOLLE. THE SEVERE THUNDERSTORM WAS LOCATED WITHIN A BAND OF SHOWERS AND THUNDERSTORMS ABOUT 30 MILES WIDE THAT EXTENDED FROM NEAR COUSHATTA SOUTHWEST TO NEAR MANY LOUISIANA ACROSS TOLEDO BEND LAKE INTO EAST TEXAS TO NEAR LUFKIN. THIS BAND HAS BEEN PRODUCING VERY HEAVY RAINS. RADAR ALSO SHOWED A BAND OF SHOWERS AND THUNDERSTORMS OVER NORTHEAST LOUISIANA AND WESTERN MISSISSIPPI THAT EXTENDED FROM NEAR VICKSBURG SOUTHWEST TO NEAR ST JOSEPH..MARKSVILLE..AND ALEXANDRIA LOUISIANA.VERY HEAVY RAINS WITH THE AREA OVER TENSAS PARISH WAS PvRODUCING FLOODING OF STREETS AND LOW LYING AREAS. THE SHOWERS AND THUNDERSTORMS WERE MOVING TO THE EAST AT NEAR 40 MPH.
Special weather statement, May 12, 9:29 PM CDT, 1 hour 45 minutes before
OKZ026-TXZ022-023-027-028-032-033-ARZ009-010-011-016-LAZ001-002- 003-004-005-006-130400- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SHREVEPORT LA 920 PM CDT SAT MAY 12 1990 ...A TORNADO WATCH IS IN EFFECT UNTIL 200 AM CDT FOR CENTRAL AND SOUTH LOUISIANA AND PARTS OF EAST TEXAS... ...FLASH FLOOD WATCH IN EFFECT FOR EAST TEXAS AND NORTHWEST LOUSIANA THROUGH THE NIGHT... ...FLASH FLOOD WARNING IN EFFECT UNTIL 945 PM CDT FOR PANOLA..RUSK..AND SHEBLY COUNTIES IN EAST TEXAS AND TENSAS PARISH IN NORTHEAST LOUISIANA... ...NO SEVERE THUNDERSTORM WARNINGS REMAINED IN EFFECT... AT 915 PM CDT THE NATIONAL WEATHER SERVICE RADAR IN SHREVEPORT SHOWED A 35 MILE WIDE AREA OF SHOWERS AND THUNDERSTORMS THAT EXTENDED FROM NORTHEAST OF CLARENCE LOUISIANA ACROSS TOLEDO BEND RESERVOIR TO NEAR LAKE LIVINGSTON IN EAST CENTRAL TEXAS. WITHIN THIS AREA THUNDERSTORMS THAT WERE PRODUCING HEAVY RAINS...HIGH WINDS AND HAIL WERE NOTED AROUND TOLEDO BEND RESERVOIR. MOVEMENT WAS EAST NEAR 25 MPH. AN ISOLATED THUNDERSTORM WAS NOTED NEAR OKAY ARKANSAS. MOVEMENT WAS EAST NEAR 20 MPH. ALSO...SCATTEREED THUNDERSTORMS WERE NOTED FROM NEAR NATCHEZ MISSISSIPPI TO NORTH OF LAFAYETTE LOUISIANA. DENSE FOG WILL DEVELOP IN THE WAKE OF THE SHOWERS AND THUNDERSTORMS TONIGHT.
The office that day
Everything else NWS Shreveport, LA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 12, 8:09 PM CDT | Severe Thunderstorm Warning | SHV | Sabine | 66 min |
| May 12, 8:30 PM CDT | Flash Flood Warning | SHV | Tensas | 75 min |
Nearby
Flash Flood Warnings in Louisiana, 1990Every flash flood warning in 1990
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.