The March 2026 Kona Low Storms: What Happened to Oahu
Between March 10 and March 24, 2026, back-to-back Kona Low storm systems dumped more than 2 trillion gallons of water across the Hawaiian Islands. That's enough to fill 3 million Olympic-sized swimming pools.
On Oahu alone, 12,434 properties were damaged or rendered temporarily inaccessible. At least 22 homes were destroyed outright. Another 257 require extensive repairs before anyone can safely live in them again. The Ka'ala weather station recorded 22 inches of rain in two days, including nearly 20 inches in a single 24-hour period starting the evening of March 19.
The North Shore communities of Haleiwa and Waialua took the worst of it. Floodwaters devastated nearly 400 homes, displacing hundreds of residents. Anything 4 feet or below in many homes was completely wiped out. Families returned to find standing water, thick mud, and severe structural damage.
Governor Josh Green estimated $1 billion in damages statewide. A Presidential Major Disaster Declaration was issued, unlocking federal assistance for Honolulu, Hawaii, and Maui Counties.
This was Hawaii's worst flooding in 20 years. And for thousands of homeowners, the roof damage is still unaddressed.
Why Roof Damage from the Kona Low Is Not Always Obvious
Many homeowners look at their roof after a storm, see shingles still in place, and assume everything is fine. That assumption has cost Hawaii homeowners thousands of dollars in hidden water damage, mold remediation, and structural repairs.
Here's what the Kona Low storms actually did to roofs across Oahu:
Wind damage without missing shingles. Sustained winds and powerful gusts during the Kona Low created uplift pressure that breaks adhesive bonds between shingles. Once that bond fails, water gets underneath during the next rain. You won't see this from the ground.
Flashing failures at penetrations. The unusual southerly wind direction of Kona storms catches homes off guard. Flashing around vents, pipes, and solar panels may have been pushed, bent, or unsealed by winds hitting from a direction the roof wasn't designed to handle.
Debris impact damage. Branches, coconuts, and airborne debris struck roofs across Oahu during the storms. Even a small impact can crack shingles or dent metal panels in ways that aren't visible from ground level but create entry points for water.
Flood-driven damage from below. For homes in flood zones, especially on the North Shore, rising water can damage roof structures from underneath. Saturated ceiling materials, compromised attic insulation, and warped decking are all common after flooding events of this magnitude.
Accelerated deterioration of existing vulnerabilities. If your roof had aging pipe boots, cracked caulking, or failing seals before the storm, the Kona Low likely turned those minor issues into active leaks. Twenty inches of rain in 24 hours finds every weakness.
How to Inspect Your Roof After the Kona Low: Homeowner Checklist
You don't need to climb on your roof to start assessing damage. Here's a step-by-step checklist every Oahu homeowner should follow right now:
Check Inside Your Home First
- Ceiling stains or discoloration in any room, especially near exterior walls, vents, and skylights
- Bubbling, peeling, or warped paint on ceilings or upper walls
- Musty smell or visible mold growth in attic spaces, closets, or bathrooms
- Damp insulation in the attic, which indicates water infiltration through the roof
- Light visible through the roof deck when you look up in the attic during daytime
Walk the Perimeter Outside
- Shingles, tiles, or debris on the ground around the foundation
- Damaged or detached gutters and downspouts
- Visible sagging, dipping, or uneven sections on the roofline
- Dented or lifted flashing visible at edges or around penetrations
- Damage to solar panel mounts or racks that may have shifted during high winds
Document Everything
- Take photos and video of every area showing damage, both interior and exterior
- Include timestamps on all documentation
- Write notes describing when you first noticed each issue
- Save any fallen materials like shingles or flashing pieces as physical evidence
Important: Do not climb onto your roof yourself. Storm-damaged roofs are dangerous, especially when wet or structurally compromised. A professional inspection is the only safe and thorough way to assess your roof after a storm of this magnitude.
Filing Your Insurance Claim for Kona Low Roof Damage
If you find damage, or even suspect it, filing your insurance claim correctly from the start makes a massive difference in your outcome. Here's how to handle it for the March 2026 Kona Low specifically:
This Falls Under Your Standard Homeowners Policy
One of the biggest mistakes Oahu homeowners make is assuming storm damage requires their hurricane insurance. It doesn't. The March 2026 Kona Low was not a declared hurricane. Damage from these storms falls under your standard homeowners insurance policy, which typically carries a much lower deductible.
If your policy was issued before 2022, you may have a flat-rate deductible of just $500 to $1,000. That means your insurance could cover a full roof replacement for just your deductible out of pocket. Don't confuse this with your hurricane deductible, which can be 1-5% of your home's insured value.
The Two-Year Filing Window
In Hawaii, you generally have up to two years after a qualifying wind or storm event to file your insurance claim. The Kona Low storms of March 10-24, 2026 are documented qualifying storm dates. This means you have until approximately March 2028 to file.
However, waiting works against you. Hidden damage gets worse every time it rains. Mold starts within 24-48 hours of water intrusion. And the longer you wait, the harder it becomes to connect damage directly to the storm event.
Hire a Professional Inspector Before Filing
Having a professional roof inspection before you file your claim is one of the smartest moves you can make. A qualified inspector documents damage in ways insurance adjusters understand and accept. They know how to connect your damage to the qualifying Kona Low storm dates with supporting evidence.
Remember: the adjuster works for the insurance company. Having your own professional documentation levels the playing field. Companies like Oahu Roof Support offer free storm damage inspections specifically for this purpose.
Step-by-Step Filing Process
- Get a professional roof inspection to document all damage and connect it to the March 2026 storm dates
- Contact your insurance company to report the loss and get your claim number
- Request the name of your assigned adjuster and their contact information
- Be present during the adjuster's inspection and share your professional documentation
- Review the settlement offer carefully and compare it against your inspection report
- Negotiate if the offer seems low because initial offers are often starting points, not final numbers
If your claim is denied or underpaid, don't give up. The appraisal process and public adjusters are available to fight for a fair outcome. It's not uncommon for denied claims to become full roof replacements with the right advocacy.
FEMA Assistance for Kona Low Damage: Deadlines You Need to Know
The Presidential Major Disaster Declaration for Hawaii means federal assistance is available to homeowners in Honolulu County, Hawaii County, and Maui County. Here's what you need to know:
- Application deadline: June 2026 (verify the exact date with FEMA, as sources indicate June 7 or June 14)
- How to apply: Call FEMA at 1-800-621-3362, visit DisasterAssistance.gov, or use the FEMA App
- Available assistance: Grants for temporary housing, home repairs, low-cost loans for uninsured property losses, and other recovery programs
- Who qualifies: Residents of Honolulu, Hawaii, and Maui Counties impacted by the March 2026 Kona Low storms
Important: FEMA assistance is separate from your insurance claim. You should file both. Even if you have homeowners insurance, FEMA may cover gaps that insurance doesn't, especially for flood-related damage not covered under standard policies.
You can also call 2-1-1 to enroll in the free Disaster Case Management Program offered by the State of Hawaii, where trained case managers help you create a recovery plan.
Storm Chasers Are Already Here: How to Protect Yourself
Within days of the Kona Low storms, the Better Business Bureau issued warnings about contractor scams targeting Hawaii homeowners. Roofing companies from the mainland are flooding the island, knocking on doors and sending unsolicited text messages offering "free inspections."
Here's how to spot them and protect yourself:
Red Flags of a Storm Chaser
- They showed up right after the storm from out of state with no local presence
- They pressure you to sign immediately or claim limited availability
- They request large upfront payments before any work begins
- They can't provide Hawaii contractor license documentation
- They offer prices far below local competitors
- They contact you via unsolicited text or door knocking
In January 2026, a Maui couple lost more than $220,000 to a fraudulent contractor who promised roof repairs but left their home in worse condition. Don't let the urgency of storm damage push you into a bad decision.
How to Protect Yourself
- Verify licenses through the Hawaii Contractors License Board
- Confirm insurance directly with the carrier, not just a certificate copy
- Check reviews across Google, Yelp, and BBB for patterns and history
- Get everything in writing before any work starts
- Pay by check or credit card, never cash
- Work with established local companies who were here before the storm and will be here after
Emergency Repairs and Permits: What You Can Do Right Now
The Honolulu Department of Planning and Permitting has issued guidance specifically for Kona Low storm damage:
Emergency repair work may begin immediately without a building permit, as long as:
- A permit application is submitted on the next working day after work begins
- Work does not expand the size, height, or area of the structure
- Repairs don't make the structure less safe than before the damage
- Materials are similar to original construction
- All work complies with city ordinances and building code safety requirements
This means you can tarp your roof, board up damaged areas, and make temporary repairs to prevent further water intrusion without waiting for a permit. However, permanent structural repairs like roof framing and foundation work still require permits through the standard process.
The City has also launched a Rebuild Donation Match Registry connecting impacted residents with donated construction materials and rebuilding services.
The Repair Backlog Is Real: Why You Need to Act Now
Roofing companies across Oahu are overwhelmed. News reports confirm contractors are booked into June and beyond, with schedules pushed back further after each successive storm. One company described conditions as "1,000% busier" than a normal spring.
This backlog means three things for homeowners:
- Every week you wait, the line gets longer. More homeowners are discovering damage as time goes on. Getting a professional inspection now puts you ahead of the wave.
- Unaddressed damage gets worse. Every rain event between now and your repair causes additional damage. Mold spreads. Wood rots. What starts as a repair becomes a replacement.
- Insurance documentation has a shelf life. The closer your inspection is to the storm date, the stronger the connection between the event and your damage. Waiting months makes it easier for insurance companies to argue wear and tear.
Frequently Asked Questions: Kona Low Roof Damage on Oahu
How do I know if my roof was damaged by the Kona Low storms?
Look for interior signs first: ceiling stains, musty smells, bubbling paint, or damp attic insulation. Outside, check for shingles or debris on the ground, damaged gutters, or visible issues along the roofline. A professional inspection is the only way to identify hidden wind damage like broken shingle seals, lifted flashing, or compromised penetrations that aren't visible from the ground.
Does the Kona Low damage fall under my standard homeowners insurance or hurricane insurance?
Standard homeowners insurance. The March 2026 Kona Low was not a declared hurricane. Damage from Kona storms, trade wind surges, and other non-hurricane wind events is covered under your regular policy, which typically has a much lower deductible than hurricane coverage. Many pre-2022 policies carry flat deductibles of just $500 to $1,000.
How long do I have to file an insurance claim for Kona Low roof damage?
You generally have up to two years from the qualifying storm date. Since the Kona Low storms occurred March 10-24, 2026, your window extends to approximately March 2028. However, filing sooner with professional documentation produces better outcomes because damage worsens over time and the connection to the storm event is stronger.
What is the FEMA deadline for Kona Low assistance in Hawaii?
The FEMA application deadline is in June 2026 (sources indicate June 7 or June 14, so verify directly with FEMA). Apply by calling 1-800-621-3362, visiting DisasterAssistance.gov, or using the FEMA App. Residents of Honolulu, Hawaii, and Maui Counties are eligible. FEMA assistance is separate from your insurance claim, so file both.
Can I do emergency roof repairs without a permit in Honolulu?
Yes. The Honolulu Department of Planning and Permitting allows emergency repair work to begin immediately without a building permit for Kona Low storm damage, as long as you submit a permit application on the next working day and follow specific conditions. You can tarp your roof and make temporary repairs to prevent further damage right away.
How do I avoid roofing scams after the Kona Low?
Be cautious of out-of-state contractors who appeared right after the storms, anyone pressuring you to sign immediately, requests for large upfront payments, and unsolicited texts or door-knocking. Verify Hawaii contractor licenses, confirm insurance directly with carriers, check online reviews, and work with established local companies. The BBB has issued specific warnings about storm chasers targeting Oahu homeowners.
My roof looks fine from the ground. Could it still be damaged?
Absolutely. The most common Kona Low roof damage is invisible from ground level. Broken shingle adhesive bonds, shifted flashing, cracked seals around penetrations, and debris impact damage all require a professional roof-level inspection to identify. Many homeowners with no visible ground-level damage discover significant problems during professional inspections.
How long are roofing companies booked out on Oahu right now?
As of April 2026, roofing companies across Oahu report being booked into June and beyond. The backlog is growing with each storm event. Getting a professional inspection now, even if repairs are scheduled for later, protects your home by documenting damage early and starting the insurance claim process.
Should I file a FEMA application even if I have homeowners insurance?
Yes. FEMA assistance and insurance claims are separate programs. FEMA may cover gaps your insurance doesn't, particularly for flood-related damage not included in standard homeowners policies. File both to maximize your recovery resources.
Protect Your Home Before the Next Storm
The Kona Low storms of March 2026 caused historic damage across Oahu. But for many homeowners, the real cost hasn't hit yet. Hidden roof damage from these storms is creating water intrusion, mold growth, and structural deterioration right now, with every rain making it worse.
At Oahu Roof Support, we've been on the ground since the storms hit, helping North Shore families and homeowners across the island assess their roof damage, document it properly, and navigate the insurance claims process. We're not storm chasers. We were here before the Kona Low, and we'll be here long after the repair backlog clears.
We offer free storm damage roof inspections that document everything your insurance company needs to see. Our team understands Hawaii weather, Hawaii roofs, and Hawaii insurance. We connect homeowners with public adjusters and appraisers when claims need additional advocacy.
Don't wait for the next storm to reveal what the last one did to your roof.
Schedule your free Kona Low damage inspection today. Call us or fill out the form below.
