Ocean Oct 10, 2026 · 8 min read

Hurricane Isaias shuts Mobile and four other Gulf ports

Isaias closes Mobile and four other Gulf ports to shipping. The US Coast Guard closed Mobile, Pascagoula, Gulfport, Pensacola and Panama City to shipping at 2am on 9 October, according to the Waterways Journal. Hurricane Isaias then came ashore near Destin, Florida, as a 105 mph Category 2, according to AP. Our view: the closure will be short, but the knock-on effects will last longer. The storm is already down to 35 mph. Mobile’s container terminal, about 600,000 TEU (twenty-foot boxes) a year, should reopen fast. Bunched-up vessel calls, tight Southeast trucking and a barge network already missing three locks will take longer to clear. Our call: Mobile reopens to ships by Tuesday 13 October.

Isaias shuts five Gulf ports from Mobile to Panama City, and Mobile has no reopening date yet
At 2am on Friday 9 October, US Coast Guard Sector Mobile set Port Condition Zulu for five ports: Mobile, Pascagoula, Gulfport, Pensacola and Panama City, according to the Waterways Journal, which cited the Gulf Intracoastal Canal Association. Zulu means gale-force winds are expected within 12 hours, and no ship moves without the Coast Guard’s say-so. Hurricane Isaias came ashore near Destin, Florida, later that day as a Category 2 storm with 105 mph winds, according to AP.
As of Saturday morning, the port authority had given no reopening date for Mobile.
We think the shutdown itself will be short. Isaias moved quickly, weakened quickly and missed the biggest Gulf ports. The disruption that lasts will be what piles up behind the closure: rolled vessel calls, a rush at the gates, tight trucking across the Southeast, and an inland barge system that was already short of locks before the rain arrived.

What closed, and when

The closures came in steps. On Wednesday 7 October the Coast Guard set Port Condition X-Ray, meaning gale-force winds within 48 hours, at Mobile, Gulfport, Pascagoula, Pensacola, Destin, Panama City and Port St. Joe, according to Engine. Under X-Ray, ports stay open, but large ocean-going ships without approval to stay have to leave. The Alabama Port Authority planned to stop vessel work at its public berths at noon on Thursday and end terminal work at the close of that day, Engine reported.
By Friday the port authority said Mobile was “closed to vessel traffic”, with cargo handling suspended except for activity the Coast Guard authorises, according to Supply Chain Dive. On reopening, the port authority said, according to the same report: “Reopening vessel traffic will also depend on Coast Guard assessments and authorization.” The port authority’s website still showed Mobile as closed under Zulu, with no reopening date, in a notice last updated at 8:31am on 9 October.
Mobile matters more than its size suggests. Its single container terminal, run by APM Terminals, handles about 600,000 TEU a year and has room for up to 2.5 million, according to Supply Chain Dive. (A TEU is a twenty-foot equivalent unit, the standard container measure.) Its AutoMobile International Terminal can handle 150,000 vehicles a year on and off ro-ro ships, the roll-on/roll-off vessels that carry cars and machinery. The port connects to five Class I railroads, four short lines and about 15,000 miles of inland waterways. That is why a closure in Mobile spreads quickly to rail ramps and barge docks across the region.

Why we think the closure will be short

The storm’s track and speed are the main reasons. On Friday morning, Isaias reached Category 3 with 120 mph winds and a central pressure of 959 millibars, according to gCaptain, citing the National Hurricane Center. It was moving north-northeast at 15 mph. By landfall it had dropped to 105 mph. By 4am CDT on Saturday the National Hurricane Center had downgraded it to a post-tropical cyclone over Alabama, with 35 mph winds and moving north at 14 mph, and issued its final advisory.
The worst surge forecast was 6 to 9 feet, between the Alabama-Florida line and Grayton Beach, Florida. Mobile Bay’s forecast was 3 to 5 feet, according to the Waterways Journal. So the heaviest surge was forecast for the stretch of coast that includes Pensacola and Destin, not Mobile’s terminals.
The biggest ports to the west were mostly spared. Sector New Orleans said it would not raise its port condition any further and expected to return to normal on 10 October, according to the Waterways Journal. FreightWaves reported on 7 October that the Port of Houston was not expected to see much impact. AP said Isaias was expected to miss the oil industry’s biggest Gulf Coast hubs.
Offshore, the precaution was large but should reverse quickly. As of Thursday, 62.9% of Gulf oil production, 1.28 million barrels a day, was shut in, meaning stopped and sealed at the well, according to gCaptain, citing the Bureau of Safety and Environmental Enforcement. Gas output was down 57.4%. Crews had left 121 of the Gulf’s 371 manned platforms. Most of that comes back once crews return and inspections are done.
Onshore, the damage was serious. More than 365,000 customers in Florida and Alabama were without power on Friday evening, according to AP. “Things are going to get really, really treacherous over the next couple hours,” Jamie Rhome, deputy director of the National Hurricane Center, told AP before landfall. Power, staff and road access usually take longer to restore than a shipping channel.

What happened last time

These same five ports have closed together before. In November 2009, Hurricane Ida led the Coast Guard to set Zulu at Gulfport, Pascagoula, Mobile, Pensacola and Panama City, according to Professional Mariner. The Coast Guard then had crews ready to check navigation aids and reopen the waterways once the storm passed.
The 2021 Hurricane Ida, which hit Louisiana, shows how reopening tends to go. Ports in the region closed on 28 August, the day before landfall. By 1 September, Argus reported that Mobile had fully reopened after a draft restriction was lifted. A draft restriction is a limit on how deep a ship can sit in the water, used while the channel is checked for shoaling. That same day, Pensacola still had a 30-foot draft limit and Pascagoula a 42-foot limit. In other words, ports reopened within about four days, but in stages, with draft limits lasting longest at the smaller ports.
Hurricane Sally in September 2020 is the closest match on paper and the counter-example. It made landfall near Gulf Shores, Alabama, on 16 September 2020 as a Category 2 with 110 mph winds, according to Wikipedia’s summary of the storm. It was slow-moving, and that kept the coast between Mobile and Pensacola in the eyewall for hours. Twenty-two barges broke loose in Pensacola Bay, and the Pensacola Bay Bridge had to be closed. Total damage was put at $7.3 billion. Isaias was a fast-moving storm, and in our view that is the main reason to expect a shorter disruption than Sally caused.
The caveat is that the Coast Guard reopens ports, not the weather service. The Army Corps of Engineers is coordinating post-storm channel surveys with NOAA, according to the Waterways Journal. If those surveys find debris, sunken barges or shoaling, the reopening timeline slips, however quickly the storm left.

What it means for forwarders, shippers and lanes

Ocean. Expect calls at Mobile, Pensacola and Panama City to be skipped or pushed back. When the ports reopen, those calls will arrive bunched together, on top of the ships already scheduled. That means a few days of congested berths and a crush of appointments at the gate. Free time on boxes that arrived just before the closure may run out while the terminal is shut. Ask the terminal and carrier now how they plan to handle demurrage and detention, the daily charges for containers left at the terminal or kept out too long. The port authority told customers to contact their terminal operators for cargo, vessel schedule and access details, according to Engine.
Ro-ro and breakbulk. Vehicle and project cargo through Mobile and the smaller Gulf ports will move more slowly. Our view is that ro-ro schedules will take a week or more to settle once the first ships return.
Truck. The Southeast truck market was already tight before landfall. Tender rejections, the share of contracted loads that carriers turn down, were running at 17% to 19% in New Orleans, Mobile and Montgomery, according to FreightWaves. FreightWaves also reported rising truckload volumes in New Orleans and Mobile as shippers moved freight ahead of the storm. Julie Van de Kamp told FreightWaves she expected a “Southeast pop” in spot rates and rejections, depending on flooding and how fast carriers could reach the area. Add relief freight heading into the Panhandle, and we expect spot rates out of Mobile and the Florida Panhandle to stay high for at least two weeks.
Barge. This is where the delay will last longest. Holt Lock on the Black Warrior-Tombigbee Waterway is closed through 31 October. The Thad Cochran and Glover Wilkins locks on the Tennessee-Tombigbee are closed for maintenance until 12 and 13 October, according to the Waterways Journal. The National Hurricane Center forecast 4 to 8 inches of rain across southern Alabama, with possibly significant river flooding. High water on those rivers can stop tows even after the locks reopen. Shippers moving coal, steel, aggregates or grain through Mobile’s inland network should plan for Holt Lock to stay closed until November.
Rail. Mobile’s five Class I railroad connections mean the backlog will reach inland ramps. Containers that would have gone straight to rail will pile up at the terminal, then hit the ramps all at once. Expect slow dwell times at inland points for about a week after the port reopens.
What to do now. Confirm vessel ETAs with carriers instead of relying on schedules. Lock in truck capacity for next week before the reopening rush. For urgent cargo, ask about switching to Houston or New Orleans. Houston was not expected to see much impact, and Sector New Orleans expected to be back to normal on 10 October.

Our call

We expect the Coast Guard to reopen Mobile to vessel traffic by Tuesday 13 October, probably with a draft restriction at first, as happened after Ida in 2021. Pensacola sat in the zone forecast for the worst surge, so we expect it, and probably Panama City, to take several days longer. We expect the APM terminal in Mobile to clear its storm backlog by about 23 October. Southeast truck spot rates should ease by the end of October. The barge network is the exception. With Holt Lock closed until 31 October, river cargo into Alabama’s interior will stay slow into November whatever happens at the coast.

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