Catastrophic Impacts From Helene
Sep 27, 2024
AM Headlines:
Tornado Watch until 9am
Tropical Storm & High Wind Warning
Significant Flash Flooding Threat
Major River Flooding
Big Picture:
Helene made landfall around 11:10pm near Perry, FL as a Cat 4 major hurricane
Currently located neat Vidalia, GA and remains a Cat 1
Moving North at 40 mph and will reach the Carolinas later this morning
Key Impacts:
Rainfall and Flooding
Rainfall has been moderate, but tropical rain bands are beginning to increase which means intensity = rising
Additional Rainfall: 3-6 inches with the highest totals for the mountains
Flash Flooding: already occurring and only going to get worse
River Flooding will extend through next week
Resovoirs along the Catawba River at risk of of breaching
Duke opened 5 dams at Oxford Dam
Major Flood forecast for Catawba River @ Lowell
Historic Flood Pools for Lake James and Lookout Shoals
Wind Threat
Gusts are starting to pick up 30-35 mph
Strongest gusts arrive by daybreak 50-60 mph, Mountains up to 80 mph
Downed Trees
Widespread Power Outages
Tornado Threat
Tornado Watch until 8am for areas near and east of I-77
Beginning to see some rotation moving across the Midland
Timeline of Peak Impacts:
Now through 12pm
Helene’s Core will pass west of the region by mid-morning
Highest risk of flash flooding, tornadoes and wind damage
Friday PM
Winds will begin to settle, but river flooding will remain a concern
Weekend
Calmer and quieter
River levels will hit moderate to major flood stage