After Helene: Checking the Trees Still Standing on Asheville Slopes
Helene soaked the mountains before its winds arrived. Many trees that stayed up lost roots on wet, steep ground. Here's how to spot the ones that could come down next.
What Helene left behind
The numbers from late September 2024 are hard to take in:
- Rain: The National Hurricane Center: Tropical Cyclone Report, Hurricane Helene reports more than 18 inches across parts of Buncombe and neighboring counties. A 1916 record fell when the French Broad at Asheville crested at 24.8 feet, and the Swannanoa at Biltmore beat its record by 6.6 feet.
- Saturated ground first: The NWS Greenville-Spartanburg: Sept. 26–27, 2024 flash flood summary explains that a "predecessor" rain event had already soaked the mountains before Helene's core arrived.
- Wind on the ridges: NHC reports a 92-knot (about 106 mph) gust at a Mount Mitchell station and extensive tree falls on many western North Carolina peaks.
- Trees as the killer: NHC counts 65 direct wind deaths across the storm's path, 61 of them from falling trees.
- Landslides: The USGS documented more than 2,000, most of them in western North Carolina, according to NHC.
Why slopes change everything
Soaked ground, steep lots and big hardwoods are a bad mix. Roots lose their grip in wet soil. On a slope, a tree that lets go falls downhill: toward the driveway, the house, the road. Many trees that survived Helene took root damage you can't see from the porch. Those are the ones we worry about now.
The walk-around (from the N.C. Forest Service checklist)
The N.C. Forest Service: Preliminary Assessment of Storm Damaged Trees guide lists the warning signs. Here's how we apply them on Asheville hillsides:
| Check | Warning sign | Next step |
|---|---|---|
| Lean | Upright before the storm, leaning now | Check the base for mounding |
| Root mound | Soil heaved on one side, cracks in it, soft or hollow underfoot, or moving in wind | Stay clear. Get an arborist consultation |
| Trunk | Long vertical cracks, horizontal or buckling cracks, especially with hollows or decay | Usually removal |
| Big branch unions | Splits, or ripped bark exposing heartwood | Prune, cable, or remove, depending on the tree |
| Canopy | Broken hangers, unusual drooping limbs | Take them down soon |
| Crown loss | Large share of live branches gone | Arborist call. It depends on prior health and how the loss is spread |
What's safe to do yourself
Do the walk-around from a safe spot. Use binoculars for the canopy and take photos so you can compare over time. Clear small brush. Leave anything under tension, any tree above the house on a slope, and anything near lines. Steep ground makes even "simple" felling unpredictable.
How we work on steep lots
Mountain jobs are rigging jobs. When a tree can't be dropped, we take it down in pieces, lowered on ropes, or lifted out with a crane where the road allows. Downed wood from the storm can be chipped on site or hauled. See storm tree cleanup and debris haul-away.
What sets the price
Free estimates, in writing. Slope and access drive mountain pricing more than anything: can a truck get close, does it need a crane, how much rigging over structures. Add tree size, condition (dead wood can't always be climbed), and debris handling. An assessment now costs far less than a tree through the roof.
A visit from us
- We walk the slope above and around the house, not just the yard.
- We run the lean, mound, trunk, union and canopy checks above on every tree that could reach a structure.
- You get a written list: remove, prune, cable or monitor, with prices.
We're licensed and insured, and plenty of Helene survivors are perfectly sound. We'll tell you which ones.
Asheville post-Helene tree questions
My oak made it through Helene. Is it fine now?
Possibly, but check it. The N.C. Forest Service's assessment starts at the base: a tree that was upright and now leans, with soil mounded on one side, has root damage. On our steep lots, saturated soil made that more common. Look before the next big wind, not after.
How do I check the root mound?
The Forest Service suggests standing on it. If it feels soft or hollow when you bounce, there may be gaps underneath. If you can feel it move when the wind blows, the roots are letting go. Either one means call an arborist, and stay out from under the tree.
There's a tree uphill from my house on someone else's land. What can I do?
Photograph it, talk to the neighbor, and get it assessed. On a slope, a failing tree falls toward the house below. Your county Extension or Forest Service office can point you to consulting arborists.
A limb is hanging in the canopy two years later. Is it still dangerous?
Yes. The Forest Service lists hangers and unusually drooping branches as safety risks to address as soon as possible. A dead hanger can drop without any wind.
Can you get a crane up my road?
Often. Steep access is normal here. When a truck can't get close, we use rigging. See crane-assisted removal for how we decide.
Is there help with costs?
The Forest Service notes that after a federal disaster declaration, funding may be available for assessments, pruning and removal. Program details change, so check with the agency directly.
Sources
- National Hurricane Center: Tropical Cyclone Report, Hurricane Helene: rainfall, river records, Mount Mitchell gust, tree-fall deaths, landslides.
- NWS Greenville-Spartanburg: Sept. 26–27, 2024 flash flood summary: predecessor rain and saturated soils.
- N.C. Forest Service: Preliminary Assessment of Storm Damaged Trees: lean, mound, crack, hanger and crown-loss checks, and disaster funding note.