Pacific's Busy Storm Season Continues with Super Typhoon In-fa

Tropical cyclone activity in the Northwest Pacific Basin has been elevated since April 2026, with 25 named storms later still active in late October. Super Typhoon In-fa churned near the Mariana Islands on October 29, 2026, while the remnants of Typhoon Champi approached Alaska. In-fa is the fifth typhoon to affect the Mariana Islands this year, and its unusually intense storm system is classified as an annular storm, a rare type of tropical cyclone. Annular storms typically lack prominent outer spiral-shaped rainbands and maintain their strength longer in unfavorable conditions. The strong El Niño underway in the Pacific is a likely contributor to the increased activity, causing storms to more readily curve northward rather than continuing westward to East Asia and Southeast Asia.