Hurricane Nolo Turns West at 100 Mph as Hawaii Faces Up to 25 Inches of Rain

Q: If Nolo's center remains offshore, how might catastrophic surf and the silent threat of sudden mudslides become the deadliest factors for residents?

Even with Nolo’s center staying offshore, the deadliest danger is likely to come from water, not the eye of the storm. In Hawaii, a near-miss can still send powerful swells, heavy rain bands and surge into coastal and mountain communities, creating lethal conditions far from the storm’s center. The surf threat is serious because Nolo is already generating large swells on exposed east- and south-facing shores of the Big Island, with those impacts expected to spread westward. A 1 to 3 foot storm surge, especially at high tide, can flood normally dry coastal areas, cut off escape routes and sweep people, cars or debris into the ocean. Rip currents and breaking waves can also kill quickly because they often draw residents and visitors to shorelines before conditions visibly worsen. The mudslide risk may be even more insidious. Forecasts call for storm totals of 10 to 20 inches on parts of Hawaii Island, with isolated amounts up to 25 inches, on steep terrain that is especially vulnerable once soils are saturated. Mudslides can strike with little warning, often at night or after a lull in rain, and can bury roads, collapse hillsides and hit homes in valleys or along slopes before people can evacuate. That is why officials are stressing early action. If roads and bridges close and responders cannot reach trapped residents, dangerous surf on one side and sudden slope failure on the other can turn an offshore hurricane into a deadly land emergency.

3 articles · Updated · Hawaii News Now · Sep 26

Nolo resumed movement after nearly 12 hours of stalling, tracking slowly west while staying about 145 miles south of South Point as a Category 2 hurricane with 100 mph winds.
Very warm waters and abundant moisture are expected to rapidly strengthen the storm to Category 3 this weekend, even as its center remains forecast to stay well south of the main Hawaiian Islands.
Hawaii Island faces the most immediate risk: another 4 to 8 inches of rain, isolated totals of 10 inches, and storm totals of 10 to 20 inches with peaks of 25 inches that could trigger life-threatening flooding and mudslides.
Coastal and wind hazards are also building, with 1 to 3 feet of storm surge possible in Hawaii County, dangerous surf spreading westward, and tropical-storm to hurricane-force gusts possible in steep terrain.
Warnings remain in place for Hawaii and Maui counties, underscoring that even a southward track can still bring islandwide gusty winds, flooding, and hazardous surf through the weekend.

Sources

Hawaii News Now22h ago

Hurricane Nolo Moves West, Remains South of Hawaii as Category 2

The New York Times1d ago

Hurricane Nolo Updates: Storm Spins Off Hawaii, Bringing Thread of Flooding - The New York Times

NBC News8h ago

Hurricane Nolo expected to bring heavy rain as it skirts Hawaii's Big Island

10 Sources

Why did Hurricane Nolo stall for 12 hours, and what hidden oceanic forces threaten Hawaii with unprecedented 25-inch rainfall floods?

With Hurricane Nolo rapidly intensifying offshore, could catastrophic mudslides and power grid failures leave Hawaii Island completely isolated for weeks?

If Nolo's center remains offshore, how might catastrophic surf and the silent threat of sudden mudslides become the deadliest factors for residents?