HAWAII ISLAND – A Flash Flood Watch remains in effect for the state of Hawaii, while a High Wind Warning and Winter Weather Advisory have also been issued for Hawaii Island summits.

The National Weather Service in Honolulu says an upper-level trough west of the area will strengthen and pass over the islands later today and tonight. “While isolated heavy showers could develop over all islands today,” forecasters say, “the main threat for heavy showers and thunderstorms will be along a band of moisture currently stalled near Maui and the Big Island. This band is expected to move north tonight, potentially shifting the threat
of heavy rain to Kauai and Oahu.”

The Flash Flood Watch is in effect through late tonight.

Snowfall of 3 to 6 inches possible for Mauna Kea and Mauna Loa, as increasing deep-layer moisture and instability are expected to lead to wintry weather over the Big Island summits tonight and Thursday.

A High Wind Warning is also in effect until 6 p.m. Forecasters say southwest winds of 50 to 70 mph are possible, with higher gusts.

A High Surf Advisory is also in effect for north facing shores of Hawaii Island. Forecasters say 10 to 15 ft. surf is possible.