Mary Beth Griggs at Popular Science also explains that for a hurricane to hit Hawaii it has to overcome some pretty stiff winds.
This is the second hurricane to threaten the Hawaiian Islands in the past month, with Hurricane Hector brushing by just a few weeks ago.
Shelters opened Wednesday on the Big Island and on the islands of Maui, Molokai and Lanai.
Oahu and Kauai County - including Kauai and Niihau islands - have a hurricane watch in place.
The forecast for Hurricane Lane has been a challenge for meteorologists.
The eastern side of the island picked up almost 3 inches (7.62 centimeters) of rain in three hours, while there was light rain in other areas, Foster said.
Surfers were observed taking advantage of the calm before the storm to get out on their boards one last time Wednesday before the ocean got too violent.
Lane could become a further rarity if its center crosses land. "Life threatening impacts are likely in some areas as the hurricane makes its closest approach". Manila already had purchased water and two cases of Spam the day before, but anxious the stock wouldn't be enough for him and his family.
"Filling up [the] tank and stuff".
On the island of Oahu, which was put on a hurricane warning late Wednesday, shelters were scheduled to open Thursday.More news: Chelsea boss Maurizio Sarri not anxious about Alvaro Morata’s dip in form
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"I don't have a generator, but I figure as things thaw out, if the electricity goes, we'll just get cooking", he said.
"So now we're in a rush to get super safe, (and) try to get this as secure as possible".
"We encourage all those in the path of the storm to listen to the instruction of state and local authorities as it relates to evacuation orders and shelter locations", Sanders said.
And many others are leaving.
Federal officials said they were prepared to help people on the islands.
President Trump's declaration secures federal emergency response funding as well as Homeland Security and FEMA assistance.
A spokesman said: "Conditions will continue to deteriorate throughout the day as Hurricane Lane moves by the island and winds increase". Originally the storm was a category 5 but recently weakened to a category 4.
Hurricane Lane drenched Hawaii on Thursday (Aug 23) ahead of its arrival in the island state, prompting US President Donald Trump to declare a state of emergency as landslides and flash flooding left roads blocked.
For some perspective, the historic flooding in April brought almost 50 inches of rain to Kauai in a 24-hour period. Most areas are expected to see 10 to 20 inches through Sunday, while some could get more than 30 inches.
The arrival of the storm's outer bands made the threat seem more real.
HONOLULU-Hawaii residents emptied store shelves on August 22, claimed the last sheets of plywood to board up windows and drained gas pumps as Hurricane Lane churned toward the state.