On Thursday, Hurricane Lowell was holding at Category 4, packing sustained winds of 140 mph as models increasingly pointed to a sharp northward turn toward Hawaii over the weekend. The National Hurricane Center said the storm was still expected to be “at or near major hurricane strength” at its closest approach to the islands. ¹

That turn is the whole story. Lowell had been tracking west, safely south of Hawaii, but an approaching North Pacific system — drawing in the remnants of Hurricane Karina — is expected to pull it abruptly north. Forecasters broadly agree on the pivot; they do not yet agree on its timing. Small differences could mean a close offshore passage or a direct hit on Kauai.

By Friday, Lowell had rapidly re-intensified into a Category 5 hurricane with 160 mph winds. Its projected track had shifted slightly west, keeping the center offshore of Kauai late Monday while leaving the islands outside the eyewall’s most destructive impacts. But the National Hurricane Center cautioned that “predicting where and how sharply Lowell turns is challenging.” ²

The margin is unnervingly thin. A 100-mile shift could bring hurricane-force gusts and storm surge to Kauai and Niihau; a farther-west track would keep those dangers largely at sea. Ensemble forecasts still stretch from a landfall scenario to a route more than 500 miles west of Niihau, meaning hurricane conditions cannot yet be ruled out.

Some hazards are already locked in. Dangerous surf is building along south-facing shores, with waves forecast to rise as high as 10 to 14 feet Saturday, while heavy rain is expected from Sunday. Kauai and the Big Island could receive up to 6 inches, with isolated totals above 10 inches. High tides Monday could compound coastal flooding, particularly on Kauai and Niihau. The turn begins Sunday; only then will Hawaii learn whether Lowell is a near miss or a historic test.