Japanese Archipelago Struck by Back-to-Back Tropical Storms

The Izu archipelago have endured another powerful blow as tropical cyclone Nakri moved across the region on Monday, following in the footsteps of Typhoon Halong, which hit a week earlier.

Immediate Impact on the Island of Hachijojima

Local authorities on Hachijojima noted interruptions and destruction to about 220 homes after the storm brought 37mm (1.5in) of rain in one hour and wind bursts reaching 95mph. Airport operations were disrupted, infrastructure damaged, and intense rains caused ground slides 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, one of whom has been confirmed dead.

The Evolution of Nakri

Nakri has since transitioned into an extratropical cyclone, 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 remnants are on track to reach the Canadian province of British Columbia, bringing heavy rain, strong winds and storm surges.

Recalling Halong's Fury

Seven days before, Halong had unleashed more than 200mm of rain in three hours, as maximum sustained winds reached 122mph. By the late morning of the previous Thursday, precipitation levels climbed to 349mm, shattering the 24-hour record. The typhoon’s remnants then crossed the north Pacific and reached Alaska on Sunday, bringing a record-breaking 2-metre storm surge.

Significant Harm in Alaska

The seaside communities Kipnuk and Kwigillingok were the most affected. A single fatality occurred, houses were ruined, and about 1,500 residents were forced into shelters. Alaska experienced an historic mass evacuation by air to relocate affected individuals. Halong remains among the strongest cyclones the area has ever seen. Its rapid intensification was driven by unusually warm north Pacific waters, which supplied additional warmth and humidity.

Double Trouble in Mexico

Meanwhile, the nation endured a double blow last week as the remnants of Hurricane Priscilla and Tropical Storm Raymond converged, releasing nearly 609mm of precipitation over four days across central and eastern regions. Steered by a dip in the jet stream, the two weather events struck the same zone one after another. The first deluge from Priscilla left the ground saturated, intensifying flooding when Raymond arrived. More than 300 communities were affected by landslides and overflowing rivers. By Wednesday, 66 people have been confirmed dead and 75 individuals are still unaccounted for. Search and relief efforts persist, with standing water causing health worries in isolated areas.

Alex Ward
Alex Ward

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