Strong winds and torrential rain are lashing Hawaii after category one Hurricane Lala skirted Big Island on Saturday.

Hawaii Governor Josh Green said Lala got “closest to [Big Island’s] South Point area”, where a person has died after a car accident.

Lala gained hurricane strength on Saturday after generating 80mph (130km/h) wind speeds, which have since peaked at 91mph. It could dump up to 25in (63cm) of rain and produce a 3ft storm surge.

Tens off thousands have been left without power and officials have warned people to prepare for “life-threatening” conditions, including floods and mudslides.

The storm is expected to continue into Sunday morning before moving west.

A hurricane warning is in effect for Big Island, while Hawaii’s seven other major islands Maui, Molokai, Kahoolawe, Oahu, Lanai, Kauai and Niihau are under tropical storm warnings.

In an update at 17:00 on Saturday local time (03:00 on Sunday GMT), the National Hurricane Center said Lala’s eye wall was “brushing the southern portion of the Big Island”.

“Damaging winds and heavy rain will persist across the Big Island throughout tonight and spread westwards across the smaller islands on Sunday,” it said.

Green said many roads in Big Island have been “impacted”, with 30 sites having already been visited by crews, and warned residents to brace for an “an incredible amount of water”.

“Please be very safe… you do not want to be out on the roads,” he said in a video update posted across his social media platforms.

The last time a hurricane made landfall on Hawaii’s Big Island was 155 years ago, according to researchers.

Over the weekend, Lala will continue moving westwards, and may weaken into a tropical storm, with the centre passing just below Hawaii’s other islands.

According to the governor, 190 flights have been postponed.

At Ellison Onizuka Kona International – Big Island’s largest airport – 40% of flights were grounded, according to flightaware.com. Some 80% of flights were called off at its other main airport, Hilo International.

The most dire forecasts from the National Weather Service (NWS) have been issued for areas within Big Island’s south-east.

“Major rainfall flooding may prompt many evacuations and rescues,” the NWS said, adding that rivers and tributaries “may rapidly overflow their banks in multiple places”.

More than 85,000 customers had lost electricity on Hawaii as of Saturday evening, according to the website poweroutage.us.

Green said three hospitals had also lost power but have backup generators.

In Maui, some residents have been left without water as of Saturday afternoon.

“Crews responded to the area but were unable to continue their assessment due to inclement weather and multiple downed trees,” a county statement said, adding crews would return once it was safe.

Meteorologist Jennifer Myers, who lives in Hilo, eastern Big Island, said landslides had already cut off some roads, while power lines had been ripped down by falling trees.

“I’m looking at the river right now, and it’s really, really high,” she told the BBC about the view from her apartment of the Wailuku River as it meets Hilo Bay.

“The bay that’s usually blue is like blood red right now because of all the sediment and river water in it.”

Residents were repeatedly urged by officials to prepare for the storm early.

Local message boards on Facebook show residents filling bags with sand to protect their homes and inquiring whether stores remained open in the early hours on Saturday.

Hawaii County’s Civil Defense Agency said public shelters were available in every county on Big Island.

“At this time, you should have completed your storm-ready preparations and focusing on your Sheltering Plan,” the agency said on X.

Hurricanes are categorised one to five, with a category one storm – such as Lala – on the lower end of the scale with minimal damage expected.

Iniki, a powerful category four storm, was the last hurricane to strike Hawaii back in 1992.

It caused six deaths and $3bn in damage after making landfall on the southern coast of Kauai.

Hurricane season in the US has been relatively quiet the last few years – the last major storm was category three Hurricane Milton, which hit Florida in October 2024.

The National Oceanic and Atmospheric Administration has said 2026 might be another low-frequency year for hurricanes in the US, predicting , externala 55% chance of a below-normal season.

Last month, the world’s oceans hit their hottest ever recorded temperatures for July, according to the EU’s climate monitoring service.

The record temperatures were partly fuelled by developing El Niño conditions in the Pacific.

It was also the joint second-warmest July globally on record, with temperatures 1.47C above the estimated pre-industrial average, according to the Copernicus Climate Change Service.