video grab from Keck1 looking north northeast on the summit of Mauna Kea

MAUNA KEA, Hawaii – A high wind warning is in effect for the summit areas of Hawaii Island, and a winter storm watch will begin late tonight and last through Thursday afternoon.

Currently, an upper level trough near the islands is bringing strong winds to the summits, according to the National Weather Service.

Winds are blowing southwest to west at 40 to 60 miles per hour, with gusts near 70 mph. The strongest winds are over the summits of Mauna Kea and Mauna Loa. The high wind warning will last until 6 a.m. on Wednesday.

Then, meteorologists predict deep moisture will move over the Big Island from the east and southeast, combining with the upper level trough to bring the threat of widespread wintry weather. Thus, a winter storm watch is in effect starting tonight.

The National Weather Service in Honolulu says there is the potential for heavy snow and icy conditions. Snow amounts could be in excess of 2 to 4 inches. Road closures are possible if the wintry weather materializes.

However, travel to the summit areas is alreaady being discouraged by the NWS, and should be delayed until winds subside.