A potent storm swept across Hawaii March 14–15, triggering widespread flash flooding, road inundations and power outages that left about 111,000 customers without electricity on Oahu, Maui and the Big Island. Officials issued repeated warnings and urged residents and visitors to stay off roads and remain indoors while the worst weather persists. The National Weather Service forecast called for significant flash flooding, damaging winds, severe thunderstorms and snow or ice atop the highest Big Island summits. Local authorities reported evacuations in parts of Oahu, school closures across multiple islands and mounting concerns about landslides and extended recovery timelines.
Key Takeaways
- Power outages affected roughly 111,000 Hawaii Electric customers on Oahu, Maui and the Big Island as of noon on March 14, 2026; utility crews warned restoration may be delayed by continuing storms.
- Kahului Airport recorded 13.6 inches of rain in a 72-hour span ending Saturday evening, exceeding the city’s total rainfall for all of 2025 and making March on track to be the wettest month on record.
- An additional 6 inches of rain were forecast through Monday afternoon, keeping flash flood warnings in effect for parts of Maui and Hawaii island on Saturday morning.
- Public schools on Oahu, Kauai and Maui closed on Friday due to hazardous conditions; landslides and road washouts prompted localized evacuations.
- The National Weather Service issued a statewide flood watch and high wind warnings expected to lapse by Sunday and Monday, respectively, depending on storm progression.
- Tourism and marine operations were disrupted: tour operators canceled outings and some visitors were advised to alter travel plans during spring break.
Background
Hawaii’s island topography makes it particularly vulnerable to intense, short-duration rainfall that can produce rapid runoff and localized flash flooding. Coastal and valley communities have repeatedly faced similar threats in recent years, and emergency managers say the state’s mix of steep terrain and narrow roads increases landslide risk when downpours persist. The current system followed several days of heavy rain that focused on central and eastern portions of Maui before spreading across the island chain.
Local utilities and emergency services prepared for multi-day response operations; field crews often cannot begin line repairs until winds and flooding subside, delaying restoration. Tourism, a major pillar of Hawaii’s economy, routinely absorbs storm-related losses when spring break and other travel periods coincide with severe weather. Past events have shown recovery and debris-clearing efforts can take weeks in isolated areas with damaged access routes.
Main Event
The storm intensified over the state on March 14, bringing a mix of heavy rainfall, gusty winds and thunderstorms. Flash flood warnings were in force for Maui and sections of Hawai‘i island into Saturday morning, with emergency responders carrying out targeted evacuations where roads were overtopped or landslide risk was elevated. Images from Kihei and Hana showed roads submerged and at least one boat grounded on a shore after surging surf and runoff.
Schools on Oahu, Kauai and Maui closed Friday as a precaution, and officials cited landslide potential and hazardous travel as primary concerns. Kahului Airport’s 13.6-inch total over a 72-hour period ending Saturday evening set a new short-term benchmark; forecasters warned of an additional 6 inches through Monday, which would exacerbate already saturated slopes.
Hawaii Electric reported roughly 111,000 customers without power across three islands at midday March 14. Company statements noted that restoration work can be unsafe or impractical while severe weather persists, and that full recovery timelines depend on both damage assessments and access to affected lines. Local roads in places such as Hana were reported flooded after repeated downpours, complicating first-responder and utility access.
Analysis & Implications
Infrastructure: Repeated heavy rainfall strains aging and vulnerable infrastructure—roads, drainage systems and electrical distribution networks. When access roads are washed out or rendered unsafe, utility crews cannot reach damaged equipment, lengthening outage durations; that dynamic explains utility warnings that repairs may take time. Investments in resilient drainage and hillside stabilization can reduce future risk, but they require sustained funding and coordination across county and state agencies.
Public safety and emergency response: The combination of flash flooding and landslide risk creates a high-consequence environment for emergency managers. Evacuation orders and sheltering decisions must balance potential rapid-onset hazards with the logistical challenge of moving people in limited time. Clear public messaging—stay off roads, avoid low-lying areas, heed evacuation notices—remains critical to minimizing casualties.
Economic and tourism impact: Short-term losses include canceled tours, grounded vessels and reduced arrivals during spring break. Operators such as snorkel and whale-watching services face multi-day revenue losses, and extended infrastructure disruptions (power, roads) could deepen economic effects if closures persist. Insurance and recovery aid will become relevant factors as damage assessments are completed.
Climate context and outlook: While a single storm cannot be attributed to long-term climate trends without formal attribution studies, Hawaii has experienced increasingly variable rainfall patterns in recent years. Planners will need to weigh emergency preparedness and infrastructure upgrades against evolving precipitation risks to reduce future vulnerability.
Comparison & Data
| Location | 72-hour rainfall | Notes |
|---|---|---|
| Kahului (Maui) | 13.6 in | Exceeds entire 2025 city total; forecast to be wettest month on record |
| Additional forecast (Maui) | Up to 6 in | Expected through Monday afternoon |
| Power outages | ~111,000 customers | Oahu, Maui and Hawaii Island affected as of noon March 14 |
The table highlights measured rainfall and operational impacts reported by authorities. Kahului’s 13.6-inch 72-hour total is an outlier compared with recent years and is driving emergency operations focused on flood risk and slope stability. Officials are monitoring forecasts closely for additional accumulations that could widen affected areas.
Reactions & Quotes
Local businesses and officials described the immediate disruptions and the challenges of operating during multi-day storms.
“We’ve had to cancel a lot of our outings while the rain and wind pass—it’s definitely affecting a lot of business,”
Liana Hong, deckhand, Living Ocean Tours
Hawaii Electric outlined the restoration constraints caused by ongoing severe weather and the need to ensure crew safety before making repairs.
“Restoration work can be delayed when conditions remain hazardous; our crews will restore service as soon as it is safe to do so,”
Hawaii Electric (utility statement)
The National Weather Service summarized expected hazards and the geographic breadth of the event.
“Significant flash flooding, damaging winds and strong to severe thunderstorms are expected, with snow and ice possible over the highest Big Island summits,”
National Weather Service (statewide forecast)
Unconfirmed
- Comprehensive statewide damage estimates and total economic losses were not available at the time of reporting; formal assessments are pending.
- Reports circulating on social media about specific structural collapses in remote areas remain unverified by county emergency management as of Saturday morning.
Bottom Line
The storm that struck Hawaii on March 14–15 produced severe, fast-moving hazards—flash floods, landslide potential, damaging winds and widespread power outages—that have immediate public-safety and economic consequences. Authorities have prioritized life-safety actions: urging people to stay indoors, closing schools and restricting travel where conditions are dangerous.
As rain persists in forecast models through Monday, officials warn that outages and access problems may extend recovery timelines; residents and visitors should follow official guidance, prepare for prolonged disruptions and expect updated advisories from the National Weather Service and local county agencies.
Sources
- San Francisco Chronicle (news)
- National Weather Service (official forecast)
- Hawaii Electric (utility statement)
- The New York Times (news)