The warning signs began early Monday.
Commuters heading into town saw trouble just beyond the hairpin turn near the Maunawilli trail.
By midmorning a 30-foot tree covered two lanes of the Pali highway.
Just as soon as crews began making headway, other trees in the water saturated soil would give way.
Motorists were made to turn around at Castle Junction and forced to take the Like Like or H-3 to get to town.
Five city bus routes were diverted most of the day.
At Hoomaluhia Botanical Park the decision was made to shut down. The conditions were too dangerous to remain open.
“Gardens closed. Sorry folks,” said a worker stationed at the front gate.
“What's going on? What's happening?” asked drivers as they made to turn around.
“Alot of trees are falling and we don't want anyone to get hurt," said the security guard
Early visitors to the botanical park were in for a surprise.
"We just took a walk by the lake and had a great time and saw the trees and fell in the mud! Looked at the animals," said Katy Maynard.
And while the couple loved the walk they did see a lot of broken branches.
"They met us on the road and said they were looking for us and that we needed to leave and so we are heading out," said Mayard.
"It was exciting. We were glad nothing fell on top of us but we weren’t worried. It was fun. it was beautiful."
But another Seattle visitor went away disappointed again.
"This is the second time I have been up here where I couldn’t get in. I will try again though," said Steve Hummel.
And an avid bird watcher had to cut short her excursion just after spotting an unusual owl in the trees.
"I come here often. I live in Kailua and I just love the mountain range. It is gorgeous back there. It's like heaven,” said Rachel Villicana.
But she even realized how the gusty winds made for treacherous conditions.
"You could hear the trees falling. It's quite scary," Villicana said.
“I'll put the sign out at the back gate and I'll look for Hawaiian Electric. If I see anyone I'll ask them to leave the gardens," said a worker who made his way to the rear of the valley in a golf cart and hard hat.
Police were on hand along Kamehameha Highway as trees fell without warning.
One minute not a tree was stirring, the next minute it would be raining leaves and branches.
Fortunately, no one has been injured.
Motorists are being asked to take precautions, as rain and winds are expected to stick around throughout the evening.