Observers are calling the record floods a “classic signal of climate change” — and high-resolution models predict another one to two feet… - From Medium
It’s the latest in a string of exceptionally rare rainstorms that are stretching the definition of “extreme” weather.
The New Orleans Times-Picayune is maintaining a live blog of the latest developments.
The Tickfaw River north of New Orleans soared 18 feet in about 12 hours to a new record crest on Friday morning, beating the water level of April 1983, and five feet higher than the high-water mark during Hurricane Isaac in 2012, the last hurricane to make landfall in Louisiana.
Though the overall structure of this meteorological event does not meet the technical requirements for a tropical storm or hurricane (it’s attached to a stalled weather front, for example), the NWS is treating it roughly the same way, and the physics of the rain clouds themselves are similar.
The local flood control district extrapolated the 23.5 inches of rain over 14.5 hours in Pattison, Texas, during the Tax Day storm to be a one-in-10,000-year event.