11am EDT Key Messages on Potential Tropical Cyclone #Nine: #Hurricane Watches and Tropical Storm Warnings issued for portions of western Cuba and the northeastern #Yucatan Peninsula of #Mexico. Forecast to become a hurricane by Wednesday morning. pic.twitter.com/ZKVTx5NJv9
— National Hurricane Center (@NHC_Atlantic) September 23, 2024
11 am EDT - Tropical Storm #Helene forms. Hurricane and Storm Surge Watches in effect for portions of Florida. Here are the Key Messages. https://t.co/tW4KeGdBFb pic.twitter.com/O2vrmnsReN
— National Hurricane Center (@NHC_Atlantic) September 24, 2024
The new NHC experimental cone of #Helene at 4am CDT 25th Sep:
— National Hurricane Center (@NHC_Atlantic) September 25, 2024
Hurricane & Tropical Storm Watches & Warnings extend well outside the cone & inland. Helene is expected to accelerate as it makes landfall, leading to Wind Hazards extending significantly far inland into the SE U.S. pic.twitter.com/yHy3ZKICSe
Also, @NWSWPC has issued a high risk for excessive rainfall for portions of the southern Appalachians in Georgia, South & North Carolina. Catastrophic and life-threatening flash and urban flooding, including numerous landslides, is expected across portions of this region. pic.twitter.com/b0O9ZPo6ho
— National Hurricane Center (@NHC_Atlantic) September 26, 2024
https://www.accuweather.com/en/hurricane/helene-to-become-major-hurricane-in-gulf-of-mexico-strike-us/1694728
Quote:
The AccuWeather Local StormMax rainfall for Helene is 36 inches, but is likely to occur hundreds of miles inland of the Gulf coast and centered on the southern Appalachians, where catastrophic flooding can occur in some communities.
ETA: That Harvey rain prediction of 40"+wasn't the converged ensemble it was an outlier model.