Japanese Islands Struck by Two Successive Tropical Storms

The Izu archipelago have endured another powerful blow as tropical cyclone Nakri swept through the region on Monday, following in the footsteps of Typhoon Halong, which hit seven days prior.

Initial Consequences on Hachijojima Island

Officials on Hachijojima Island reported disruption and damage to about 220 homes after the typhoon brought 37mm (1.5in) of rain in one hour and wind bursts reaching 95mph. Airport operations were disrupted, public facilities harmed, and heavy rainfall triggered landslides across the island chain. The typhoon also generated 9-metre waves, leading to hazardous shoreline situations. Near Oiso on the Pacific side, in Kanagawa prefecture, three fishermen were carried off by waves, with one fatality reported.

Nakri's Transformation

The storm has since shifted into an non-tropical storm system, weakening as it moved eastwards over cooler north Pacific waters, with wind speeds dropping to about 65mph as of Thursday. Riding the jet stream, its remaining parts are headed to reach British Columbia, Canada, delivering intense precipitation, powerful gusts, and coastal flooding.

Recalling Halong's Fury

Seven days before, Halong discharged more than 200mm of rain in three hours, as peak wind speeds hit 122mph. By the late morning of the previous Thursday, precipitation levels climbed to 349mm, breaking the daily rainfall record. The typhoon’s remnants then crossed the north Pacific and arrived in Alaska on Sunday, bringing a record-breaking 2-metre storm surge.

Significant Harm in Alaska

The seaside communities Kipnuk and Kwigillingok were the hardest hit. A single fatality occurred, houses were ruined, and nearly 1,500 people had to evacuate to safe zones. The state underwent one of the largest airlifts in its history to evacuate displaced residents. Halong stands as one of the most powerful storms the region has experienced. Its rapid intensification was fuelled by abnormally hot northern Pacific seas, which provided extra heat and moisture.

Double Trouble in Mexico

At the same time, the country endured a double blow last week as the remnants of Hurricane Priscilla and Tropical Storm Raymond combined, dumping about 609mm of rain in four days across the central and eastern areas. Steered by a dip in the jet stream, the two weather events struck the same zone one after another. The initial heavy rains from Priscilla made the soil waterlogged, worsening floods as Raymond approached. More than 300 communities were affected by landslides and overflowing rivers. By Wednesday, 66 fatalities were verified and 75 individuals are still unaccounted for. Rescue and recovery operations are continuing, with standing water causing health worries in isolated areas.

Amanda Bauer
Amanda Bauer

A structural engineer with over 15 years of experience in designing sustainable building solutions and sharing industry insights.