Flash Flood Watch issued May 22 at 3:47PM CDT until May 23 at 12:00PM CDT by NWS New Orleans
Assumption; Lower Jefferson; Lower Lafourche; Lower Plaquemines; Lower St. Bernard; Lower Terrebonne; Orleans; St. Charles; St. James; St. John The Baptist; St. Tammany; Upper Jefferson; Upper Lafourche; Upper Plaquemines; Upper St. Bernard; Upper Terrebonne
...Heavy Rain Expected at Times Through Tuesday Morning...
.A cold front that has now moved over the area will meander for
the next 24 hours and will bring multiple rounds of heavy rain to
most of the area Tonight across most of the area, and continuing
Tuesday morning in areas mainly south of I-12 and east of I-59.
Heavy rainfall has already fallen this past weekend resulting in
very saturated grounds. This has primed the area for a threat of
flash flooding through Tuesday morning.
...FLASH FLOOD WATCH NOW IN EFFECT THROUGH TUESDAY MORNING...
The Flash Flood Watch is now in effect for
* portions of southeast Louisiana and Mississippi, including the
following areas, in southeast Louisiana, Assumption, Lower
Jefferson, Lower Lafourche, Lower Plaquemines, Lower St.
Bernard, Lower Terrebonne, Orleans, St. Charles, St. James,
St. John The Baptist, St. Tammany, Upper Jefferson, Upper
Lafourche, Upper Plaquemines, Upper St. Bernard, and Upper
Terrebonne. In Mississippi, Hancock, Harrison, Jackson, and
* through Tuesday morning
* A stalled front will likely bring another round or two of heavy
rainfall over the watch area. Much of the area has already
received heavy rainfall over the weekend which has resulted in a
* Additional heavy rainfall from thunderstorms is expected to
produce additional amounts generally between 2 and 3 inches,
much of which could fall in a brief period of time. Locally
higher amounts are expected. This will result in rapid runoff
and possible flash flooding. In addition there could be some
minor river flooding issues as well.
A Flash Flood Watch means that conditions may develop that lead
to flash flooding. Flash flooding is a very dangerous situation.
You should monitor later forecasts and be prepared to take action
should Flash Flood Warnings be issued.