Alert archive / Louisiana / Flash Flood Warnings in 1993
Flash Flood Warning 4, NWS New Orleans, LA
NWS New Orleans, LA issued this flash flood warning at Jan 20, 1993, 9:07 AM CST for Livingston Parish, Louisiana. It was in force for 3 hr.
The area
The counties it named.
The facts
- Issued
- Jan 20, 1993, 9:07 AM CST (15:07 UTC)
- Expired
- Jan 20, 1993, 12:15 PM CST
- In force
- 3 hr
- Issued by
- NWS New Orleans, LA
- Area
- Whole counties
County Livingston Parish, LA
The nearest sounding before it
Slidell Radar S, LA (KSIL), launched 12:00Z, 3.1 hours before the alert went out and 101 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
- 21 J/kg
- Mixed-layer CIN
- -102 J/kg
- Mixed-layer LCL
- 545 m above ground
- 0-6 km bulk shear
- 63 kt
- 0-1 km storm-relative helicity
- 392 m²/s²
- 0-3 km storm-relative helicity
- 460 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 KBTR 201532 COR FFWNEW LAC033-037-063-121-201815- BULLETIN - EBS ACTIVATION REQUESTED FLASH FLOOD WARNING...CORRECTED FOR DATE NATIONAL WEATHER SERVICE BATON ROUGE LA 907 AM CST WED JAN 20 1993 THE NATIONAL WEATHER SERVICE IN BATON ROUGE HAS ISSUED A FLASH FLOOD WARNING EFFECTIVE UNTIL 1215 PM CST FOR PEOPLE IN THE FOLLOWING LOCATIONS....... IN EAST CENTRAL LOUISIANA ...EAST BATON ROUGE PARISH...EAST FELICIANA PARISH ...LIVINGSTON PARISH...WEST BATON ROUGE PARISH AN AREA OF RAIN AND THUNDERSTORMS CONTINUE MOVING ACROSS EAST CENTRAL LOUISIANA PRODUCING FLOODING IN AND AROUND THE BATON ROUGE METROPOLITAN AREA. FLOODING WAS REPORTED IN BAKER NEAR THE BAKER CANAL...IN DENHAM SPRING AND WALKER...ON I-210 NEAR THE GOVERNOR MANSION AND NUMEROUS STREETS IN BAKER AND BATON ROUGE. AREA ROADS AND HIGHWAYS WILL HAVE PROBLEMS WITH STANDING WATER ESPECIALLY LA 1 SOUTH. RAINFALL HAS AVERAGED 3 TO 5 INCHES ACROSS THE AREA. 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, Jan 20, 4:31 AM CST, 4 hours 36 minutes before
LAZ008>010-012>014-MSZ010>014-ALZ016-201200- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE NEW ORLEANS LA 431 AM CST WED JAN 20 1993 SCATTERED STRONG THUNDERSTORMS WITH HEAVY RAINFALL WERE OCCURRING OVER SOUTHEAST LOUISIANA NORTH OF HAMMOND TO NORTH OF COVINGTON. THESE STORMS WILL PRODUCE STRONG GUSTY WINDS...DANGEROUS LIGHTNING AND POSSIBLY SMALL HAIL. SOME STREET FLOODING AND FLOODING OF LOW LYING AREAS IS LIKELY WITH THE STONGER STORMS. WIDELY SCATTERED THUNDERSTORMS...SOME WITH HEAVY RAINFALL...WERE INCLUDED IN RAIN OVER SOUTHEAST LOUISIANA FROM NORTH OF LAKE PONTCHARTRAIN WEST OVER THE BATON ROUGE AREA TO LAFAYETTE. THE RAIN EXTENDED NORTH AND EAST FROM SOUTHEAST LOUISIANA INTO SOUTH MISSISSIPPI AND SOUTHWEST ALABAMA. THE THUNDERSTORMS WERE MOVING EAST AT 30 MILES AN HOUR.
Special weather statement, Jan 20, 5:30 AM CST, 3 hours 37 minutes before
LAZ008>010-012>014-MSZ010>014-ALZ016-201300- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE NEW ORLEANS LA 530 AM CST WED JAN 20 1993 ...A FLASH FLOD WATCH IS IN EFFECT FOR PARTS OF SOUTHEAST LOUISIANA... MAINLY NORTH OF LAKE PONTCHARTRAIN AND WEST INTO EAST CENTRAL LOUISIANA... SCATTERED STRONG THUNDERSTORMS WITH HEAVY RAINFALL WERE OCCURRING OVER SOUTHEAST LOUISIANA FROM NEAR HAMMOND TO NORTH OF COVINGTON. THESE STORMS WILL PRODUCE STRONG GUSTY WINDS...DANGEROUS LIGHTNING AND POSSIBLY SMALL HAIL. SOME STREET FLOODING AND FLOODING OF LOW LYING AREAS IS LIKELY WITH THE STONGER STORMS. WIDELY SCATTERED THUNDERSTORMS...SOME WITH HEAVY RAINFALL...WERE INCLUDED IN RAIN OVER SOUTHEAST LOUISIANA FROM NORTH OF LAKE PONTCHARTRAIN WEST OVER THE BATON ROUGE AREA TO LAFAYETTE. THE RAIN EXTENDED NORTH AND EAST FROM SOUTHEAST LOUISIANA OVER SOUTH MISSISSIPPI AND SOUTHWEST ALABAMA. THE THUNDERSTORMS WERE MOVING EAST AT 30 MILES AN HOUR.
Special weather statement, Jan 20, 5:36 AM CST, 3 hours 31 minutes before
LAZ006-008-009-201400- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BATON ROUGE LA 530 AM CST WED JAN 20 1993 ...THUNDERSTORMS WITH HEAVY RAIN CONTINUE TO DEVELOP ACROSS EAST CENTRAL LOUISIANA... RADAR SHOWED A SOLID LINE OF STRONG THUNDERSTORMS WITH HEAVY RAIN AND FREQUENT LIGHTNING FROM JUST WEST OF CLINTON...SOUTH TO BETWEEN BATON ROUGE AND ST. FRANCISVILLE...TO CENTRAL IBERVILLE PARISH. THESE THUNDERSTORMS WERE MOVING EAST ABOUT 25 MPH AND WILL MOVE TO BATON ROUGE WITHIN THE HALF HOUR AND TO ST. HELENA...LIVINGSTON AND ASCENSION PARISHES WITHIN THE NEXT ONE TO TWO HOURS. OTHER THUNDERSTORMS CONTINUE ACROSS AVOYELLES AND ST. LANDRY PARISHES MOVING NORTHEAST. WE HAVE ALREADY RECEIVED NEARLY TWO AND ONE HALF INCHES OF RAIN SINCE MIDNIGHT...SO THE ADDITIONAL HEAVY RAIN WILL RUN OFF QUICKLY. < PEOPLE THROUGHOUT EAST CENTRAL LOUISIANA...INCLUDING THE BATON ROUGE METRO AREA CAN EXPECT STRONG GUSTY WIND...HEAVY RAIN QUICKLY CAUSING FLOODING OF STREETS...UNDERPASES AND LOW LYING AREAS AND FREQUENT LIGHTNING AS THESE THUNDERSTORMS MOVE THROUGH THE EARLY MORNING HOURS. ...A FLASH FLOOD WATCH IS IN EFFECT TODAY FOR ALL OF EAST CENTRAL LOUISIANA EXCEPT FOR AVOYELLES...CATAHOULA AND CONCORDIA PARISHES...
Special weather statement, Jan 20, 6:32 AM CST, 2 hours 35 minutes before
LAZ008>010-012>014-MSZ010>014-ALZ016-201400- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE NEW ORLEANS LA 632 AM CST WED JAN 20 1993 ...A FLASH FLOOD WATCH IS IN EFFECT FOR PARTS OF SOUTHEAST LOUISIANA... MAINLY NORTH OF LAKE PONTCHARTRAIN AND WEST INTO EAST CENTRAL LOUISIANA... SCATTERED STRONG THUNDERSTORMS WITH HEAVY RAINFALL CONTINUED NORTH OF LAKE PONTCHARTRAIN IN SOUTHEAST LOUISIANA FROM COVINGTON TO BOGALUSA. THESE STORMS WILL PRODUCE STRONG GUSTY WINDS...DANGEROUS LIGHTNING AND POSSIBLY SMALL HAIL. SOME STREET FLOODING AND FLOODING OF LOW LYING AREAS IS LIKELY WITH THE STONGER STORMS. WIDELY SCATTERED THUNDERSTORMS...SOME WITH HEAVY RAINFALL...WERE INCLUDED IN RAIN OVER SOUTHEAST LOUISIANA FROM NORTH OF LAKE PONTCHARTRAIN WEST OVER THE BATON ROUGE AREA TO LAFAYETTE. THE AREA OF RAIN EXTENDED NORTH AND EAST FROM SOUTHEAST AND SOUTH CENTRAL LOUISIANA OVER SOUTH MISSISSIPPI AND SOUTHWEST ALABAMA. THE THUNDERSTORMS WERE MOVING EAST AT 35 MILES AN HOUR.
Special weather statement, Jan 20, 7:31 AM CST, 1 hour 36 minutes before
LAZ008>010-012>014-MSZ010>014-ALZ016-201500- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE NEW ORLEANS LA 731 AM CST WED JAN 20 1993 ...A FLASH FLOOD WATCH IS IN EFFECT FOR PARTS OF SOUTHEAST LOUISIANA... MAINLY NORTH OF LAKE PONTCHARTRAIN AND WEST INTO EAST CENTRAL LOUISIANA... A SHORT LINE OF STRONG THUNDERSTORMS WITH HEAVY RAINFALL EXTENDED FROM BETWEEN HAMMOND AND COVINGTON SOUTHBETWEEN LAKE PONTCHARTRAIN AND LAKE MAUREPAS AND THEN SOUTHWST TO GRAMERCY. THIS LINE OF STORMS WILL PRODUCE STRONG GUSTY WINDS...DANGEROUS LIGHTNING AND POSSIBLY SMALL HAIL. BRIEF HEAVY RAIN WILL PRODUCE STREET FLOODING AND FLOODING OF LOW LYING AREAS. WIDELY SCATTERED THUNDERSTORMS...SOME WITH HEAVY RAINFALL...WERE INCLUDED IN RAIN OVER SOUTHEAST LOUISIANA FROM LAKE PONTCHARTRAIN WEST TO LAFAYETTE. THE AREA OF RAIN EXTENDED NORTH AND EAST FROM SOUTHEAST AND SOUTH CENTRAL LOUISIANA OVER SOUTH MISSISSIPPI AND INTO SOUTHWEST ALABAMvA. THE THUNDERSTORMS WERE MOVING EAST AT 35 MILES AN HOUR.
Special weather statement, Jan 20, 8:02 AM CST, 1 hour 5 minutes before
LAZ006-008-009-201600- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BATON ROUGE LA 800 AM CST WED JAN 20 1993 ...THUNDERSTORMS MOVING NORTHEAST ACROSS EAST CENTRAL LOUISIANA AND PRODUCING HEAVY RAINFALL... A FLASH FLOOD WATCH IS IN EFFECT FOR EAST CENTRAL LOUISIANA TODAY EXCEPT FOR AVOYELLES...CATAHOULA AND CONCORDIA PARISHES. RADAR SHOWED A LARGE AREA OF RAIN WITH STRONG THUNDERSTORMS EXTENDING FROM LAKE PONTCHARTRAIN TO NEAR LAKE CHARLES NORTHWARD TO NORTH OF ALEXANDRIA AND TO NEAR JACKSON IN MISSISSIPPI. THE THUNDERSTORMS WERE MOVING EAST ABOUT 25 MPH. THE WEATHER SERVICE OFFICE IN BATON ROUGE HAS RECORDED NEARLY 3.60 INCHES OF RAIN SINCE MIDNIGHT WITH LOCAL AREAS REPORTING UPWARDS OF 5 INCHES. THIS HEAVY RAIN ON SATURATED GROUND WILL CAUSE FLOODING OF LOW LYING AREAS SUCH AS STREETS AND UNDERPASSES. MOTORISTS ARE URGED TO DRIVE WITH CAUTION. THE RAIN WILL CONTINUE FOR MOST OF TODAY UNTIL A COLD FRONT MOVES THROUGH THE STATE EARLY TONIGHT.
The office that day
Everything else NWS New Orleans, LA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jan 20, 9:07 AM CST | Flash Flood Warning | LIX | East Baton Rouge, East Feliciana, West Baton Rouge | 3 hr |
| Jan 20, 10:28 AM CST | Flash Flood Warning | LIX | Saint Landry | 3 hr |
| Jan 20, 10:55 AM CST | Flash Flood Warning | LIX | Saint Martin | 4 hr |
| Jan 20, 11:19 AM CST | Flash Flood Warning | LIX | Pointe Coupee | 3 hr |
| Jan 20, 12:17 PM CST | Flash Flood Warning | LIX | Livingston | 3 hr |
| Jan 20, 12:17 PM CST | Flash Flood Warning | LIX | East Baton Rouge, East Feliciana, Pointe Coupee, West Baton Rouge, West Feliciana | 3 hr |
| Jan 20, 12:17 PM CST | Flash Flood Warning | LIX | Saint Landry | 3 hr |
| Jan 20, 3:04 PM CST | Flash Flood Warning | LIX | East Baton Rouge, East Feliciana, Iberville, Livingston, Saint Helena, West Baton Rouge | 3 hr |
| Jan 20, 3:04 PM CST | Flash Flood Warning | LIX | Pointe Coupee, Saint Landry | 3 hr |
| Jan 20, 3:04 PM CST | Flash Flood Warning | LIX | West Feliciana | 3 hr |
| Jan 20, 3:20 PM CST | Flash Flood Warning | LIX | Tangipahoa, Washington | 4 hr |
| Jan 20, 3:20 PM CST | Flash Flood Warning | LIX | Saint Martin | 4 hr |
| Jan 20, 5:43 PM CST | Flash Flood Warning | LIX | Saint Tammany | 4 hr |
| Jan 20, 5:51 PM CST | Severe Thunderstorm Warning | LIX | Saint John the Baptist, Tangipahoa | 69 min |
| Jan 20, 5:51 PM CST | Severe Thunderstorm Warning | LIX | Saint James | 69 min |
Nearby
Flash Flood Warnings in Louisiana, 1993Every flash flood warning in 1993
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.