The Central Weather Bureau (CWB) issued the heavy rain warning for six counties and cities in northern Taiwan – a self-governing island nation off the east coast of mainland China.
Typhoon Trami is crawling gradually towards Taiwan today as the ferocious storm packs maximum sustained winds of up to 96 miles per hour, the CWB reports.
The typhoon is expected to come close to Taiwan over the next few days as its periphery brings a deluge of rainfall to northern Taiwan from Friday afternoon until Saturday morning.
As of 7pm BST on Thursday, Trami was located 491 miles east of Eluanbi carving its way slowly northwest with gusts of up to 118 miles per hour, according to the CWB.
The CWB has issued the heavy rain warning for New Taipei City, Taipei City, Keelung City, Taoyuan City, Yilan County and Hsinchu City.
A strong wind advisory has also been issued for all of Taiwan.
Trami is not forecasted to make landfall on Taiwan but its periphery will come close enough to have an impact on the Asian country, the CWB predicts.
The dangerous storm will then make a sharp turn towards Okinawa, Japan, which has a population of 1.4million.
The CWB forecasts temperatures late at night and early morning will be cooler in northern Taiwan, with highs of 26-28 degrees Celsius.
But conditions will feel slightly warmer in central and southern areas with the mercury reaching 30 degrees during the day.
Taiwan is braced for strong wind gusts of level nine to eleven, including on offshore islands, open and adjacent waters.
Huge waves may occur in northern and eastern Taiwan – including Green Island and Orchid Island, the Hengchun Peninsula and coastal areas of Matsu.
Strong winds and powerful waves will continue for many days, with maximum wave heights reaching six meters.
People engaged in offshore work or seaside activities are advised to take special care.
Meteorologist Kait Parker explained Typhoon Trami is “barely moving” but could move over Japan this weekend.
She said: “Trami will pick up on Friday and take off toward the north.
“By Saturday evening it is expected to regain strength with winds up to 125mph and accelerate toward Japan’s mainland, including the capital of Tokyo on Sunday.
“The centre of Trami will not directly hit Tokyo, but impacts will affect the capital as well as Osaka and other large areas of Japan.”