For shippers moving freight to Hawaii, Puerto Rico, Guam, and Alaska, weather disruptions hit harder and recover slower than on the mainland. Here's how to prepare.
By Daniel Datz, Vice President of Sales, Odyssey Logistics
On the mainland, a disrupted lane is a routine inconvenience. Shippers reroute the freight, call another carrier, or pay a little more, and the network absorbs the rest. Freight shipped to and from Hawaii, Puerto Rico, Guam, or Alaska, though, face more constraints.
Jones Act requirements limit ocean service in these lanes to a small number of qualified carriers. On a calm week, freight books, sails, and delivers on schedule.
But weather disruption puts it all to the test.
Each of these markets sits in an exposed geography: hurricane season threatens Puerto Rico and the Caribbean, the central Pacific generates storms of its own around Hawaii, and Alaska contends with winter conditions that can shut down inbound freight for days.
Across the broader supply chain, weather events from wildfires to flooding are adding pressure every year, and in constrained lanes, that pressure has fewer corridors through which to release.
This year’s forecasts are a case study in why planning can’t wait on them to force one’s hand. NOAA’s outlook calls for a below-normal Atlantic hurricane season; and in the same breath, projects an active season in the central Pacific, the basin that includes Hawaii. Seasonal outlooks also predict how many storms may form, not how strong any one will be. And it only takes one.
The better question for shippers in these markets isn’t what the forecast says. It’s whether the supply chain behind your freight was built to bend before the season started.
The capacity you count on isn’t the capacity you’ll have
Constrained lanes feel flexible in fair weather. Disruption reveals how little of that flexibility is guaranteed.
Most offshore markets run on roughly two sailings per week, and for most of the year, that cadence is more than enough. Capacity is rarely contested, and shippers grow accustomed to delivering freight a day before sailing, or even day-of, and watching it move without issue.
One of the most common misconceptions in these markets is the assumption that this flexibility survives a disruption.
When a major weather event interrupts service, carriers may skip a sailing ahead of the storm, then work to restore their schedules as soon as ports reopen. But the first sailings back are triaged by need: perishables, food, medical supplies and relief goods move first. Commercial freight can be rolled for one or two sailings behind that queue, while pent-up demand from every shipper in the market competes for whatever capacity remains.
On a two-sailing-per-week lane, getting rolled twice is a lost week or more.
The shippers most exposed to those shortfalls are the ones whose replenishment assumes normal-season flexibility. Shippers should model their coverage against the disrupted case, where a week or more of capacity can simply disappear, rather than the fair-weather case their day-to-day experience reflects.
The storm is where the disruption starts, not where it ends
In these markets, ground conditions after a storm extend the disruption well past the weather itself.
Infrastructure in many offshore markets is more fragile than shippers accustomed to mainland operations expect: hard rain floods roads, high winds take down power lines, and restoration can run weeks rather than days, as Puerto Rico has demonstrated repeatedly in recent hurricane seasons.
This is why resilience planning in constrained lanes has to extend past the freight itself and into operating conditions on the ground. Extended power loss disables point-of-sale systems and card readers, including at fuel pumps, and local commerce can run on cash for days. Keeping cash reserves on hand is standing advice for every business operating in these markets.
Fuel deserves the same attention twice over: availability tightens when distribution is disrupted, and weather events reliably drive fuel surcharge volatility, a cost swing that should be built into any pre-season budget.
The disruption may also start somewhere other than where shippers are watching. In Alaska, vessels keep sailing through winter conditions that would surprise mainland operators; what closes are the roads, cutting off inbound freight before it ever reaches the port of export.
A resilient operation in these markets has looked past the sailing itself, at how freight reaches the port, and how the business keeps functioning while power, payments, and fuel supply recover.
The pre-season playbook
The moves that hold up under disruption are the ones made before the season starts.
The place to start is a question Odyssey asks every shipper in these markets: where does your product sit relative to the export location?
When the answer is a long way from the port, advance warehousing is the most direct fix. Positioning inventory near port operations, whether on the mainland origin side or in the destination market itself, can eliminate three to four days of inbound transit exposure, with freight on hand and ready to move.
Sailing frequency is the second lever. Shippers trying to compress inventory cycles can move from one weekly sailing to two. This is an approach many of the largest retailers in these markets already use to speed up inventory fulfillment cycles, and the locations on the receiving end like the results. The same cadence works harder during disruptions, when smaller, more frequent shipments mean a rolled sailing puts less freight at risk.
Even the best contingency plans don’t survive a disruption hit unchanged. The goal is a supply chain flexible enough to bend, with a partner ready to work the problem alongside you when it does.
Where Odyssey fits
A partner already operating in all three markets doesn’t have to improvise when one of them closes.
Odyssey serves all three domestic offshore markets: Alaska, Hawaii, and Puerto Rico. Shippers operating in more than one of them, can run every Jones Act Lane through a single partner rather than a different forwarder in each market. That single partner also owns the infrastructure behind the playbook. Because Odyssey is asset-based, advance warehousing happens in its own facilities, with freight on hand and ready to move when it’s needed.
Many shippers in these markets also wear multiple hats, managing the offshore move, domestic truckload, and intermodal separately. Odyssey bundles all three under one point of contact, with almost 30 locations across the country for transloading and distribution along the way.
Before the season peaks, it’s worth pressure-testing your own assumptions. If your freight were rolled for two sailings, what happens next? Where does your inventory sit relative to the export port today? Does your contingency plan assume the capacity you have in calmer months?
If any of those questions is hard to answer, talk to one of Odyssey’s logistics experts today for a consultation.
Frequently asked questions
What is the Jones Act and how does it affect shipping to Hawaii, Puerto Rico, Guam, and Alaska?
The Jones Act, formally the Merchant Marine Act of 1920, requires that goods shipped between U.S. ports travel on vessels that are U.S.-built, U.S.-flagged, and U.S.-crewed.
For shippers moving freight to Hawaii, Puerto Rico, Guam, and Alaska, this means ocean service is limited to a small number of qualified carriers. Unlike mainland freight, where a shipper can quickly source alternative capacity, Jones Act lanes offer few substitutes, making carrier relationships and advance planning more consequential than in any other domestic market.
How does weather disruption affect freight capacity in Jones Act lanes?
When a storm disrupts service in a Jones Act lane, the recovery is slower and more constrained than in a typical domestic market. Carriers may skip a sailing ahead of the storm, and the first sailings back are typically prioritized for essential goods: perishables, food, and relief supplies. Commercial freight gets queued behind that demand, and with only two sailings per week in most markets, getting rolled once or twice means a week or more of lost service. There is no overflow network to absorb that volume.What can shippers do to protect their supply chain before hurricane season?
The most effective steps are taken before the season starts. Positioning inventory closer to the export port, through advance warehousing on the mainland origin side or in the destination market, reduces the transit exposure that a disruption can exploit. Moving to a two-sailing-per-week cadence, where feasible, limits how much freight is at risk in any single sailing.
Working with a logistics partner who already operates in the market means contingency plans don’t have to be built from scratch when conditions change.
Why does sailing frequency matter for supply chain resilience in offshore markets?
Sailing frequency is a risk distribution tool as much as an inventory velocity tool. A shipper consolidating a week’s worth of freight into one sailing puts all of it at risk if that sailing is disrupted. Splitting the same volume across two sailings means a disruption affects only half the exposure.
Many of the largest retailers moving freight into Jones Act markets operate on a two-sailing cadence specifically because of this dynamic, and find that inventory replenishment is faster in normal conditions as well.
What makes Jones Act lanes different from mainland freight during a major disruption?
On the mainland, disruption is usually a rerouting problem. In Jones Act markets, it’s a capacity problem. There is no alternate ocean carrier to call, no rail bridge to substitute, and no highway that bypasses the port. The freight has to wait. Compounding this, post-storm infrastructure damage including flooded roads, extended power outages, and fuel supply interruptions can extend the operational impact well beyond the sailing schedule.
Shippers who treat these markets like mainland lanes consistently underestimate how quickly a single weather event can affect weeks of supply.
