Hurricane Preparedness in Alaska
Alaska households do not need to prepare for a hurricane of any kind -- true tropical cyclones cannot sustain themselves over Alaska's cold ocean waters -- and this record discloses that directly rather than manufacturing hurricane-preparedness advice that does not apply. What Alaska households genuinely do need to prepare for is real and severe: the most extreme earthquake and tsunami risk of any US state, a recurring, currently-active glacial lake outburst flood in Juneau, and genuine winter-storm and Interior wildfire-season readiness.
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Learn moreThis topic does not apply to Alaska the way it does to a coastal Lower-48 state -- here is what genuinely does
Alaska carries no hurricane risk at all, so there is no hurricane-specific evacuation plan, storm-surge zone, or wind-rated-roofing consideration relevant to an Alaska household in the way there would be in the Gulf Coast or Atlantic Seaboard. This record discloses that directly rather than forcing an irrelevant hurricane-preparedness framing onto a state true tropical cyclones cannot reach. The genuine severe-weather and geologic-hazard planning an Alaska household should do instead covers four real, documented hazards: earthquakes, tsunamis, glacial outburst flooding (in Juneau specifically), and winter storms -- each detailed below.
Earthquake and tsunami preparedness: Alaska's real, most-serious-in-the-nation risk
Alaska is the most seismically active US state by a wide margin, accounting for approximately 11% of the world's recorded earthquakes, with more than three-quarters of the state's population living in an area that can experience a magnitude-7 earthquake. Coastal Alaska carries what the Alaska Earthquake Center describes as the most serious tsunami risk in the United States -- a legacy of the March 27, 1964 magnitude-9.2 Great Alaska Earthquake, which triggered tsunamis that killed more than 130 people across Alaska, California, and Oregon and directly led to the creation of NOAA's National Tsunami Warning Center in Palmer, Alaska. A household in a coastal or seismically active area should know its evacuation route to higher ground, keep a basic earthquake kit (water, food, flashlight, first-aid supplies, sturdy shoes) accessible, secure heavy furniture and water heaters, and understand that in a coastal area, a strong or long-lasting earthquake is itself the tsunami warning -- move to high ground immediately rather than waiting for an official alert.
Juneau households: prepare for the annual, currently-active Suicide Basin glacial outburst flood
Juneau residents, particularly in the Mendenhall Valley, face a real, recurring annual glacial lake outburst flood from Suicide Basin -- an event that, as of this pass's research window, was actively unfolding in August 2026 (a State Disaster Declaration and evacuation advisory, following a record 16.65-foot river crest in 2025). A Juneau household in or near the flood zone should follow City and Borough of Juneau emergency alerts each summer, know its specific evacuation zone and route in advance of flood season, and understand that -- unlike a one-time historical flood -- this hazard recurs annually and should be planned for every year rather than treated as resolved after any single season.
Winter storms and, in the Interior, wildfire season round out real, genuine preparedness needs
Alaska households across the Interior and much of the state outside the Southeast panhandle should prepare a genuine winter-storm kit (extra food, water, blankets, a battery or hand-crank radio, and a vehicle emergency kit) before winter arrives, given the state's real, extreme cold and severe winter conditions. Alaska's Interior also carries a real, disclosed, and substantial seasonal wildfire risk from boreal forest fires -- a household in or near the Interior's forested areas should maintain defensible space around structures and have an evacuation plan ready before fire season begins each year. See alaska.js's geography disclosure for the fuller detail on both hazards.
Key takeaways
- Alaska needs NO hurricane preparedness of any kind -- true tropical cyclones cannot sustain themselves over its cold ocean waters; even 2022's Typhoon Merbok reached the state only as an extratropical storm, not a hurricane.
- Alaska carries the most extreme earthquake risk of any US state and what the Alaska Earthquake Center calls the nation's most serious tsunami risk -- know your evacuation route to high ground, and treat a strong coastal earthquake itself as the tsunami warning.
- Juneau households, especially in the Mendenhall Valley, should prepare annually for the real, recurring Suicide Basin glacial lake outburst flood -- actively underway again as of August 2026, following a record 2025 crest.
- Winter-storm readiness and, in the Interior, wildfire-season preparedness (defensible space, an evacuation plan) round out Alaska's real, genuine severe-weather planning needs.
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