Storm Surge & Evacuation Zone Lookup

The most active tropical cyclone basin on Earth, averaging 26 named storms per year. The vast expanse of warm water (26°C+) across the western Pacific fuels intense typhoons that regularly impact East and Southeast Asia. Storm surge is the primary killer in this basin, particularly in low-lying coastal areas of the Philippines, Vietnam, and southern China.

The Atlantic basin includes the Atlantic Ocean, Caribbean Sea, and Gulf of Mexico. While not the most active basin globally, it produces the most economically damaging storms due to the concentration of population and infrastructure along the US Gulf and Atlantic coasts. Storm surge is the deadliest hazard, responsible for roughly half of all Atlantic hurricane deaths.

The second most active basin globally, the Northeastern Pacific generates an average of 15 named storms per year. Most storms track westward over open ocean and dissipate, but those that curve northeast can bring devastating surge and flooding to western Mexico. Hawaii is occasionally threatened by Central Pacific storms.

The North Indian Ocean has a unique bimodal cyclone season (pre-monsoon April–June and post-monsoon October–December). While it produces fewer storms than the Pacific, the Bay of Bengal is the world's deadliest cyclone basin due to extreme storm surge vulnerability. Bangladesh's flat, low-lying delta and India's densely populated east coast face catastrophic surge risk.

The South Indian Ocean basin stretches from the east coast of Africa to western Australia. Cyclones in this basin primarily affect Madagascar, Mozambique, and the island nations of Mauritius, Réunion, and the Comoros. Southeast Africa's Mozambique Channel acts as a funnel, concentrating cyclone energy toward some of the world's poorest coastal communities.

The South Pacific basin covers the vast ocean from eastern Australia to French Polynesia. Cyclones here primarily threaten Australia's Queensland coast, Fiji, Vanuatu, Tonga, and New Caledonia. Many Pacific Island nations sit barely above sea level, making even moderate storm surge an existential threat.