Alert archive / Louisiana / Flash Flood Warnings in 2012
Flash Flood Warning 140, NWS Jackson, MS
NWS Jackson, MS issued this flash flood warning at Aug 31, 2012, 6:36 AM CDT for Catahoula Parish, Concordia Parish, Franklin Parish, Louisiana. It was in force for 4 hr. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Aug 31, 2012, 6:36 AM CDT (11:36 UTC)
- Expired
- Aug 31, 2012, 10:30 AM CDT
- In force
- 4 hr
- Issued by
- NWS Jackson, MS
- Area
- Storm-based polygon
- Flood severity
- None
Counties Catahoula Parish, LA, Concordia Parish, LA, Franklin Parish, LA
The nearest sounding before it
Jackson, MS (KJAN), launched 00:00Z, 11.6 hours before the alert went out and 187 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
- 42 J/kg
- Mixed-layer CIN
- -83 J/kg
- Mixed-layer LCL
- 796 m above ground
- 0-6 km bulk shear
- 37 kt
- 0-1 km storm-relative helicity
- 303 m²/s²
- 0-3 km storm-relative helicity
- 319 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
432
WGUS54 KJAN 311136
FFWJAN
LAC025-029-041-311530-
/O.NEW.KJAN.FF.W.0140.120831T1136Z-120831T1530Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE JACKSON MS
636 AM CDT FRI AUG 31 2012
THE NATIONAL WEATHER SERVICE IN JACKSON HAS ISSUED A
* FLASH FLOOD WARNING FOR...
CATAHOULA PARISH IN NORTHEAST LOUISIANA...
THIS INCLUDES THE CITY OF LARTO...
NORTHWESTERN CONCORDIA PARISH IN NORTHEAST LOUISIANA...
THIS INCLUDES THE CITY OF MONTEREY...
SOUTHERN FRANKLIN PARISH IN NORTHEAST LOUISIANA...
THIS INCLUDES THE CITY OF WINNSBORO...
* UNTIL 1030 AM CDT
* AT 636 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR DETECTED
THUNDERSTORMS PRODUCING VERY HEAVY RAIN ALONG A LINE EXTENDING FROM
ENTERPRISE TO 15 MILES SOUTHWEST OF WALTERS...OR ALONG A LINE
EXTENDING FROM 22 MILES SOUTH OF WINNSBORO TO 12 MILES NORTH OF
EFFIE...MOVING NORTHEAST AT 15 MPH. ESTIMATED RADAR RAINFALL
AMOUNTS...ON THE ORDER OF TWO TO FOUR INCHES...HAVE OCCURRED IN THE
PAST TWO HOURS.
* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
ACME...NEW ERA...MAYNA...JIGGER...LIDDIEVILLE...ARCHIE...
JONESVILLE...WILDSVILLE...FROGMORE...WALLACE RIDGE AND WISNER
VERY HEAVY RAINFALL WILL CONTINUE OVER THE WARNED AREA FOR THE NEXT
THREE HOURS WITH AN ADDITIONAL ONE TO THREE INCHES POSSIBLE.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
MOST FLOOD DEATHS OCCUR IN AUTOMOBILES. NEVER DRIVE YOUR VEHICLE INTO
AREAS WHERE WATER COVERS THE ROADWAY. WHEN ENCOUNTERING FLOODED ROADS
MAKE THE SMART CHOICE...TURN AROUND...DONT DROWN.
CONTACT LOCAL LAW ENFORCEMENT AND THEY WILL RELAY FLOODING REPORTS TO
THE NATIONAL WEATHER SERVICE FORECAST OFFICE IN JACKSON.
&&
LAT...LON 3131 9201 3193 9201 3193 9191 3199 9190
3208 9193 3210 9188 3215 9190 3219 9183
3220 9150 3125 9177 3125 9182 3129 9191
3128 9194 3125 9193 3125 9199 3128 9203
$$
MME2 follow-up statements
104
WGUS74 KJAN 311305
FFSJAN
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE JACKSON MS
805 AM CDT FRI AUG 31 2012
LAC025-029-041-311530-
/O.CON.KJAN.FF.W.0140.000000T0000Z-120831T1530Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
FRANKLIN LA-CONCORDIA LA-CATAHOULA LA-
805 AM CDT FRI AUG 31 2012
...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1030 AM CDT FOR
CATAHOULA...WESTERN CONCORDIA AND SOUTHERN FRANKLIN PARISHES...
AT 803 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
ANOTHER ROUND OF THUNDERSTORMS PRODUCING VERY HEAVY RAIN ALONG A
LINE EXTENDING FROM AIMWELL TO 20 MILES WEST OF LARTO...MOVING
NORTHEAST AT 30 MPH. ESTIMATED RADAR RAINFALL AMOUNTS...ON THE ORDER
OF TWO TO FOUR INCHES...HAVE OCCURRED IN THE PAST THREE HOURS.
OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
ROSEFIELD...SHERWOOD...MANIFEST...ENTERPRISE...WALTERS...ARCHIE...
LIDDIEVILLE...JIGGER...WISNER...ACME...WALLACE RIDGE...NEW ERA...
MAYNA...WINNSBORO...MONTEREY...JONESVILLE...WILDSVILLE AND FROGMORE
VERY HEAVY RAINFALL WILL CONTINUE OVER THE WARNED AREA FOR THE NEXT
TWO HOURS...WITH AN ADDITIONAL ONE TO THREE INCHES POSSIBLE FROM
WINNSBORO TO WISNER TO JONESVILLE AND WALTERS.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE WATER COVERS THE ROADWAY.
THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS SAFELY.
FIND AN ALTERNATE ROUTE AND MOVE TO HIGHER GROUND.
MOST FLOOD DEATHS OCCUR IN AUTOMOBILES. NEVER DRIVE YOUR VEHICLE INTO
AREAS WHERE WATER COVERS THE ROADWAY. WHEN ENCOUNTERING FLOODED ROADS
MAKE THE SMART CHOICE...TURN AROUND...DONT DROWN.
CONTACT LOCAL LAW ENFORCEMENT AND THEY WILL RELAY FLOODING REPORTS TO
THE NATIONAL WEATHER SERVICE FORECAST OFFICE IN JACKSON.
&&
LAT...LON 3131 9201 3193 9201 3193 9191 3199 9190
3208 9193 3210 9188 3215 9190 3219 9183
3220 9150 3125 9177 3125 9182 3129 9191
3128 9194 3125 9193 3125 9199 3128 9203
$$
40618
WGUS74 KJAN 311528
FFSJAN
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE JACKSON MS
1028 AM CDT FRI AUG 31 2012
LAC025-029-041-311531-
/O.EXP.KJAN.FF.W.0140.000000T0000Z-120831T1530Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
FRANKLIN LA-CONCORDIA LA-CATAHOULA LA-
1028 AM CDT FRI AUG 31 2012
...THE FLASH FLOOD WARNING WILL EXPIRE AT 1030 AM CDT FOR
CATAHOULA...WESTERN CONCORDIA AND SOUTHERN FRANKLIN PARISHES...
AT 1025 AM CDT...THE RAINBAND FROM WINNSBORO TO JONESVILLE TO LARTO
CONTINUED MOVING NORTHEAST AT 25 MPH AND WAS STEADILY WEAKENING AND
BREAKING UP DURING THE PAST HOUR. ESTIMATED RAINFALL AMOUNTS OF 3 TO
4 INCHES WERE INDICATED FROM THE HEAVIER RAINS BETWEEN ENTERPRISE
AND WALTER SINCE 6 AM.
ADDITIONAL RAINS SHOULD TOTAL LESS THAN ONE QUARTER INCH FOR THE
NEXT FEW HOURS UNLESS NEW DEVELOPMENT OCCURS.
SINCE LATE THURSDAY...RAIN TOTALS OF 4 TO 8 INCHES WERE INDICATED IN
THESE AREAS.
LAT...LON 3131 9201 3193 9201 3193 9191 3199 9190
3208 9193 3210 9188 3215 9190 3219 9183
3220 9150 3125 9177 3125 9182 3129 9191
3128 9194 3125 9193 3125 9199 3128 9203
$$
40The office that day
Everything else NWS Jackson, MS issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 31, 2:19 AM CDT | Special Weather Statement | JAN | Catahoula | 31 min |
| Aug 31, 2:39 AM CDT | Severe Thunderstorm Warning | JAN | Catahoula, Concordia, Franklin, Tensas | 66 min |
| Aug 31, 4:12 AM CDT | Special Weather Statement | JAN | Franklin | 58 min |
| Aug 31, 4:19 AM CDT | Severe Thunderstorm Warning | JAN | Catahoula, Franklin | 56 min |
| Aug 31, 4:33 AM CDT | Tornado Warning | JAN | Franklin, Madison, Richland | 22 min |
| Aug 31, 6:24 AM CDT | Special Weather Statement | JAN | Catahoula, Franklin | 61 min |
| Aug 31, 6:26 AM CDT | Special Weather Statement | JAN | Morehouse, West Carroll | 44 min |
| Aug 31, 2:32 PM CDT | Special Weather Statement | JAN | Tensas | 28 min |
Nearby
Flash Flood Warnings in Louisiana, 2012Every flash flood warning in 2012
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.