Lane has submerged parts of Big Island and Hawaii with record-breaking levels of rainfall.
Accuweather said 44.88 inches fell at Waiakea Uka on Big Island, beating the previous total of 38.76 inches dumped by Paul in November 2000.
In Piihonua, 42.69 inches of rain fell while in Saddle Quarry it was 38.77 inches.
Earlier, National Weather Service Honolulu said evacuations were taking place in Kaiulani Street, Hilo, Big Island, as a result of “significant flash flooding”.
What is the NOAA 5am update?
In its 5am update (4pm BST), NOAA said Lane was “moving slowly south of the western Hawaiian islands” at a speed of 3mph with maximum winds of 60mph (95km/h).
“Excessive rainfall” is still expected this weekend which could prompt further flash flooding and landslides, NOAA warned.
Between 5 and 10 inches of rain could fall in some areas and tropical storm conditions are possible for Kauai.
A tropical storm warning remains in effect for Oahu and Maui County but was discontinued for Hawaii County.
Lane is now about 110m miles (175km) south-south-west of Honolulu and 165 miles (265km) south-south-east of Lihue.
NOAA said large swells will impact the Hawaiian islands in the next 24 hours, producing high surf along eastern and southern shorelines.
Is Hawaii now safe?
Hawaiians are generally breathing a sigh of relief after Lane failed to make a direct impact on the island chain and was downgraded into a tropical storm yesterday.
But officials are warning life-threatening conditions remain and people should stay vigilant.
Drone footage has captured the awesome sight of rivers outside Hilo turning into raging torrents as fast-flowing water barrels downstream.
Many roads remain impassable due to the extreme flooding and mudslides.
Hawaii Electric said it had restored power to thousands of customers in parts of Oahu after earlier outages.
Oahu is Hawaii’s most populous island with just under one million residents.
Felled trees caused by the atrocious weather fuelled many of the power cuts.
Around 1,100 people have sought refuge in emergency shelters provided by the Red Cross in recent days.