Hurricane Ida has slowed to 10 mph, remains a cat 4, and is currently putting the shove to the entire flow of the Mississippi river, which is apparently flowing backwards. Normally it’s 2 feet per second and it was temporarily at -.5. Deep sections of the river could still have been flowing normally, this all depends on where the gauges are.
The river temporarily flowed backward during Katrina. Given climate change’s known exacerbation of wind speeds and duration of storms this looks to be a harbinger of the new normal.
If my pOp wants me to buy this for him he’ll let me know.