The wettest spot in the state overnight and this morning was not Mount Waialeale, Manoa or Hilo. Instead, for a change, Hawaii Kai got the brunt of the showers from all the rain coming up from the south.

The Hawaii Kai Golf Course got 1.7 inches of rain in the 24-hour period ending at 8 a.m. today, followed by nearby Kamehame Ridge, which recorded about 1.2 inches and Niu Valley, where a little more than 1.1 inches fell.

The rains, which have prompted a flash flood watch for Oahu and Kauai County, are being drawn up from the south unlike the usual rain pattern, which is blown in by the trade winds from the northeast.

National Weather Service forecasters say there’s still a chance of heavy rainfall and thunderstorms from the system until this evening at about 6 p.m., when forecasters say they will likely lift the watch as the system moves west of Kauai.

Satellite pictures still show a band of clouds moving up from the south over Kauai and Oahu, with showers falling over Kauai at mid-morning. Oahu is cloudy with fewer showers and Maui County and Oahu have just scattered clouds.

Forecasters say the usual cooling trade winds should return by Saturday, when the weather system moves west of the main Hawaiian islands.

But expect humid Kona weather and southeast winds and more showers early next week.

The same weather system that brought rains today and Thursday and heavy rain last weekend is expected to shift and move east, back over the islands.