Alert archive / Louisiana / Flash Flood Warnings in 2016
Flash Flood Warning 73, NWS New Orleans, LA
NWS New Orleans, LA issued this flash flood warning at Aug 21, 2016, 2:20 PM CDT for East Baton Rouge Parish, West Baton Rouge Parish, Louisiana. It was in force for 2 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 21, 2016, 2:20 PM CDT (19:20 UTC)
- Expired
- Aug 21, 2016, 4:45 PM CDT
- In force
- 2 hr
- Issued by
- NWS New Orleans, LA
- Area
- Storm-based polygon
- Flood severity
- None
Counties East Baton Rouge Parish, LA, West Baton Rouge Parish, LA
The nearest sounding before it
Slidell Radar S, LA (KSIL), launched 12:00Z, 7.3 hours before the alert went out and 139 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
- 1841 J/kg
- Mixed-layer CIN
- -9 J/kg
- Mixed-layer LCL
- 761 m above ground
- 0-6 km bulk shear
- 8 kt
- 0-1 km storm-relative helicity
- -17 m²/s²
- 0-3 km storm-relative helicity
- -11 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
591
WGUS54 KLIX 211920
FFWLIX
LAC033-121-212145-
/O.NEW.KLIX.FF.W.0073.160821T1920Z-160821T2145Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE NEW ORLEANS LA
220 PM CDT SUN AUG 21 2016
THE NATIONAL WEATHER SERVICE IN NEW ORLEANS HAS ISSUED A
* FLASH FLOOD WARNING FOR...
SOUTHEASTERN WEST BATON ROUGE PARISH IN SOUTHEASTERN LOUISIANA...
NORTHERN EAST BATON ROUGE PARISH IN SOUTHEASTERN LOUISIANA...
* UNTIL 445 PM CDT
* AT 219 PM CDT...DOPPLER RADAR INDICATED THUNDERSTORMS PRODUCING
HEAVY RAIN ACROSS THE WARNED AREA. UP TO TWO INCHES OF RAIN HAVE
ALREADY FALLEN. FLASH FLOODING IS EXPECTED TO BEGIN SHORTLY.
* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
BATON ROUGE...ZACHARY...BAKER...PORT ALLEN...BRUSLY...PRIDE...
GREENWELL SPRING...MERRYDALE...BROWNFIELDS AND BATON ROUGE AIRPORT.
ADDITIONAL RAINFALL AMOUNTS OF TWO TO THREE INCHES ARE POSSIBLE IN
THE WARNED AREA.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TURN AROUND...DON'T DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD
DEATHS OCCUR IN VEHICLES.
&&
LAT...LON 3068 9113 3072 9085 3058 9099 3052 9098
3038 9126 3058 9130
$$
TD2 follow-up statements
780
WGUS74 KLIX 212011
FFSLIX
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE NEW ORLEANS LA
311 PM CDT SUN AUG 21 2016
LAC033-121-212145-
/O.CON.KLIX.FF.W.0073.000000T0000Z-160821T2145Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
WEST BATON ROUGE LA-EAST BATON ROUGE LA-
311 PM CDT SUN AUG 21 2016
...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 445 PM CDT FOR
SOUTHEASTERN WEST BATON ROUGE AND NORTHERN EAST BATON ROUGE
PARISHES...
AT 307 PM CDT...DOPPLER RADAR INDICATED THUNDERSTORMS PRODUCING
HEAVY RAIN...THAT PROMPTED THE FLASH FLOOD WARNING...HAD DIMINISHED.
HOWEVER...ADDITIONAL THUNDERSTORMS WITH HEAVY RAINFALL WERE
APPROACHING THE MISSISSIPPI RIVER IN WEST BATON ROUGE PARISH. UP TO
TWO TO THREE INCHES OF RAIN HAVE ALREADY FALLEN. FLASH FLOODING IS
EXPECTED TO BEGIN SHORTLY.
SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
BATON ROUGE...ZACHARY...BAKER...PORT ALLEN...BRUSLY...PRIDE...
GREENWELL SPRING...MERRYDALE...BROWNFIELDS AND BATON ROUGE AIRPORT.
ADDITIONAL RAINFALL AMOUNTS OF ONE TO TWO INCHES ARE POSSIBLE IN THE
WARNED AREA.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...URBAN AREAS...HIGHWAYS...STREETS AND
UNDERPASSES AS WELL AS OTHER DRAINAGE AREAS AND LOW LYING SPOTS.
&&
LAT...LON 3068 9113 3072 9085 3058 9099 3052 9098
3038 9126 3058 9130
$$
TD939
WGUS74 KLIX 212058
FFSLIX
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE NEW ORLEANS LA
358 PM CDT SUN AUG 21 2016
LAC033-121-212104-
/O.CAN.KLIX.FF.W.0073.000000T0000Z-160821T2145Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
WEST BATON ROUGE LA-EAST BATON ROUGE LA-
358 PM CDT SUN AUG 21 2016
...THE FLASH FLOOD WARNING FOR SOUTHEASTERN WEST BATON ROUGE AND
NORTHERN EAST BATON ROUGE PARISHES IS CANCELLED...
THE HEAVY RAIN HAS ENDED. FLOODING IS NO LONGER EXPECTED TO POSE A
SIGNIFICANT THREAT...HOWEVER MINOR STREET FLOODING WILL BE
POSSIBLE...ESPECIALLY IN SOUTHERN PORTIONS OF EAST BATON ROUGE
PARISH WHERE A FLOOD ADVISORY REMAINS IN EFFECT UNTIL 300 PM CDT
MONDAY.
LAT...LON 3068 9113 3072 9085 3058 9099 3052 9098
3038 9126 3058 9130
$$
TDThe office that day
Everything else NWS New Orleans, LA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 21, 1:23 PM CDT | Special Weather Statement | LIX | Saint James, Saint John the Baptist | 37 min |
| Aug 21, 1:40 PM CDT | Special Weather Statement | LIX | East Feliciana, Saint Helena | 35 min |
| Aug 21, 1:46 PM CDT | Special Weather Statement | LIX | East Baton Rouge, West Baton Rouge | 29 min |
| Aug 21, 2:15 PM CDT | Special Weather Statement | LIX | Orleans | 30 min |
| Aug 21, 2:34 PM CDT | Special Weather Statement | LIX | Washington | 41 min |
| Aug 21, 2:36 PM CDT | Special Weather Statement | LIX | West Baton Rouge | 39 min |
| Aug 21, 2:56 PM CDT | Special Weather Statement | LIX | Saint Tammany | 49 min |
| Aug 21, 3:03 PM CDT | Special Weather Statement | LIX | Saint Helena | 42 min |
| Aug 21, 4:04 PM CDT | Special Weather Statement | LIX | Ascension | 41 min |
| Aug 21, 4:45 PM CDT | Special Weather Statement | LIX | Saint James | 45 min |
Nearby
Flash Flood Warnings in Louisiana, 2016Every flash flood warning in 2016
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.