[janetjanet998]

the MS river is very high due to heavy rain the past 12 months , 16 feet At New Orleans,

the levees protect it to 20 feet

most of the time when tropical systems hit the river is only 4-8 feet

any surge will go up the MS river.... extreme example: Katrina raised it form 4 feet to 17 feet
but since the river s so high the downward momentum is also higher then a lower river level and the same surge at 3 feet level won’t be as high as 16 feet..

This is being discussed at various places and there appears o be no otvery little model data for such a scenario

[janetjanet998]

update: NWS New Orleans ✔ @NWSNewOrleans The Miss. River forecast at New Orleans Carrollton gage was updated this afternoon to a crest of 19ft on Fri. nto Sat. to account for potential storm surge impacts on lower Miss. River. The forecast was closely coordinated with Corps of Engineers & the NHC Storm Surge Unit. 1/2