The trade winds, Hawaii’s natural air conditioning system, are back and should blow most of the vog away by sometime today, National Weather Service forecasters say.

“There may be some vog in the morning, but I think most of it will be gone overnight,” said Pete Donaldson, a forecaster with the National Weather Service. “It is definately clearing.”

Donaldson said southerly winds over the last few days moved some of the vog cloud north of the islands and the returning tradewinds blew the vog back of the island today. But the plume should move south and west of us today.

The return of the northeast trade winds will bring morning and overnight showers to the islands in windward and mauka areas, rather than the afternoon showers in interior sections that  formed over the islands during the Kona weather conditions over the past week.

The trade winds may be breezy this weekend and small craft warnings may be posted, Donaldson said.

The trades are likely to be with us for a while, at least through next week.