Hawaii Governor Josh Green put a roughly $1 billion price tag on the damage caused by severe storms that swept across multiple islands, triggering floods, power outages, and emergency rescues. The estimate, delivered as the state began tallying the cost of a powerful Kona low weather system, signals one of the most expensive natural disasters in Hawaii’s recent history. For thousands of residents left in the dark and hundreds forced from their homes, the financial toll is only part of the story.
A Kona Low Batters the Islands
The storm system responsible for the destruction is known as a Kona low, a type of upper-level weather pattern that can stall over the Hawaiian Islands and deliver prolonged, intense rainfall. The Honolulu forecast office of the National Weather Service linked the system to heavy rainfall and significant flash flooding potential, particularly dangerous because the ground was already saturated from earlier weather events.
An intense rainfall event had already struck Oahu on February 21, 2026, according to a detailed NWS summary. That earlier deluge left soils across windward and leeward slopes with limited capacity to absorb additional water. When the Kona low arrived weeks later, runoff was faster and more destructive than it might have been on dry ground. The NWS issued a flood watch during the storm window, warning of locally heavy rainfall across the island chain and highlighting the risk of rapid-onset flash flooding in low-lying areas.
Emergency Proclamation and Statewide Closures
Governor Green did not wait for the storm to make landfall before acting. His office issued an emergency proclamation ahead of the severe weather, citing anticipated hazards that included heavy rain, flooding, and damaging winds. The proclamation activated state emergency resources and mobilized agencies across the government, including the Department of Defense, the Office of Homelessness, and the state’s water resources division.
As forecasts grew more ominous, the governor followed with a separate directive ordering the closure of public schools and nonessential state offices, a move his office detailed in a closure announcement. The decision, based on National Weather Service guidance about major flooding and severe thunderstorms, affected students, government workers, and public services across every county. It was an unusually broad preemptive step intended to keep people off roads, free up emergency capacity, and allow agencies to focus on storm preparations.
State teams already engaged in Maui disaster work were redirected to help coordinate response plans across the islands, while the statewide homelessness initiative worked with counties and service providers to reach unsheltered residents before conditions deteriorated. Water resource specialists from the state’s OWR division monitored streams, reservoirs, and flood control structures, anticipating overtopping risks. For residents who needed to relocate, the state’s housing portal at Hale Hawaii became a central hub for shelter information and temporary lodging options.
Floods, Rescues, and 2,000 Without Power
When the storm arrived, its impacts were felt from Kauai to Hawaii Island. Training bands of rain parked over certain districts for hours at a time, overwhelming drainage systems and turning normally calm streams into torrents. Low-lying neighborhoods saw water rise quickly, cutting off road access and prompting emergency calls from residents trapped in vehicles or ground-floor units.
According to an Associated Press report, about 2,000 people lost power as winds and flooding knocked out electrical infrastructure. Utility crews struggled to reach damaged lines in some areas where roads were washed out or blocked by landslides. Local officials issued evacuation orders in several communities as creeks overtopped their banks and storm drains backed up, though those orders were lifted once floodwaters began to recede and assessments showed no imminent dam failures.
First responders conducted multiple water rescues, some involving residents clinging to debris or stranded on the roofs of vehicles. The multi-island nature of the flooding stretched emergency crews thin, with fire, police, and volunteer teams juggling simultaneous calls about inundated homes, blocked highways, and isolated kupuna who needed assistance. Damage reports flowed in from residential neighborhoods, agricultural lands, and critical public infrastructure, including roads, bridges, and wastewater systems.
The governor estimated expected damages from the storm at about $1 billion, a figure that captures both public infrastructure losses and private property destruction. That number, while still preliminary, places this event among Hawaii’s costliest weather disasters. For a state whose general fund budget runs only several times that amount, recovery and rebuilding could consume a meaningful share of available resources if federal disaster aid and insurance payouts do not cover most of the losses.
Insurance Gaps Leave Homeowners Exposed
Behind the headline damage estimate lies a more personal crisis for many families: how to pay for repairs. The Hawaii Department of Commerce and Consumer Affairs had warned residents before the storm that standard homeowners, condo, and renters policies generally exclude floods. Coverage for water that enters from the ground up (through rising rivers, storm surge, or intense runoff) must typically be purchased separately, often through the National Flood Insurance Program.
That distinction is poorly understood, and the result is that many households now facing ruined flooring, collapsed retaining walls, or undermined foundations may discover that their insurer will not cover the bulk of the damage. Even where wind-driven rain or roof losses are covered, the line between flood and non-flood damage can be contentious, delaying claims and complicating rebuilding timelines.
Hawaii’s topography makes these coverage gaps especially consequential. Homes perched on steep slopes may be vulnerable to mudflows and debris, while those in valleys and near streams face recurring flash flood risk from Kona lows and tropical systems. Without dedicated flood policies, owners must rely on savings, loans, or limited disaster grants to rebuild. The DCCA’s pre-storm guidance urging residents to review coverage and secure property came as a reminder of long-standing vulnerabilities, but for many, it arrived too late to adjust policies before the system formed.
Saturated Ground Changes the Risk Equation
Most public discussion of the storm has centered on dramatic images of flooded streets and rescues, yet the sequence of weather events is equally important. The February downpour over Oahu had already pushed soil moisture close to saturation in many basins. When the Kona low delivered another round of heavy rain, the islands lacked their usual ability to soak up water.
Instead of infiltrating, precipitation ran quickly off hillsides and urban surfaces into streams and storm drains. In some neighborhoods, water levels rose faster than residents were accustomed to seeing, even in areas not formally mapped as high-risk flood zones. For engineers and planners, this is a textbook example of “compound flooding,” where one event primes the landscape for disproportionate impacts from the next.
Hawaii’s existing flood maps and design standards have traditionally emphasized single-storm probabilities, what a “100-year” or “500-year” event might look like in isolation. They are less equipped to capture the risk of back-to-back systems or extended wet periods that leave soils saturated for weeks. If such sequences become more common, the state may need to revisit how it models flood risk, where it allows new construction, and how it prioritizes drainage upgrades.
Recovery Costs and What Comes Next
The immediate crisis has passed. Evacuation orders have been lifted, waters have largely receded, and power has been restored to most customers. But the long process of recovery is only beginning. Damage assessments will determine how much federal assistance Hawaii receives, what share of the roughly $1 billion estimate will fall on state and county budgets, and how much will ultimately be borne by individual homeowners and businesses.
In the near term, officials are focused on clearing debris, reopening roads, and stabilizing slopes before the next round of heavy rain. Temporary repairs to water, sewer, and power systems will give way to more permanent reconstruction projects that could take years to complete. Local governments are also likely to confront difficult choices about whether to rebuild certain roads and facilities in place or consider relocating them out of the most flood-prone corridors.
At the household level, the storm is forcing hard conversations about risk, insurance, and long-term housing stability. Some families may decide to elevate homes, install new drainage features, or pursue buyouts if those become available. Others, lacking resources or coverage, may struggle to return to pre-storm conditions at all. For renters and low-income residents, especially those who were already precariously housed, the damage could deepen existing housing insecurity.
State leaders have framed the disaster as both a warning and an opportunity: a warning about the growing costs of extreme weather, and an opportunity to rethink how Hawaii prepares for, insures against, and ultimately lives with storms that are likely to return. Whether the lessons from this Kona low translate into new policies, stronger infrastructure, and better-protected communities will shape how resilient the islands are when the next system forms offshore.
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*This article was researched with the help of AI, with human editors creating the final content.
