Brokers Estimate Isaias Insured Losses in Mid-Single-Digit Billions as Storm Fades Over Alabama

Since Isaias made landfall near Destin, Florida, at 8:30 p.m. CDT Friday, Oct. 9, the storm has collapsed over Alabama, and the focus has moved from wind speed to the cost.

The early answer from the insurance side: painful but manageable.

Landfall and rapid decay

Isaias hit as a Category 2 hurricane with sustained winds of 105 mph. WeatherFlow stations recorded gusts of 116 mph near the landfall zone, and Fox Weather tracked winds as high as 118 mph in the Panhandle. Gauges at Panama City Beach showed water 5 to 6 feet above normal. Forecasters had warned of surge up to 9 feet in some areas.

By 5 a.m. ET Saturday the National Hurricane Center had downgraded Isaias to a post-tropical cyclone about 25 miles south-southwest of Montgomery, Alabama. It was moving north at roughly 14 mph with maximum sustained winds down to 35 mph. The agency expects it to dissipate Sunday.

This was the first U.S. hurricane landfall in two years. Breitbart noted, citing NOAA data, that the landfall came two years to the day and the same clock time as Hurricane Milton's.

What the loss estimates say

Gallagher Re said its assessment of exposure from Mobile, Alabama, to Destin, plus expected wind speeds and past landfalls from high-end Category 2 or low-end Category 3 hurricanes, points to insured losses in the mid-single-digit billions of dollars. That figure includes private carrier claims and National Flood Insurance Program payouts. The firm said abundant reinsurance capital means the storm is unlikely to meaningfully affect January 1 renewal talks.

That is a slight upward nudge. Industry expectations had been "low to mid-single-digit billions" before landfall.

Before the storm arrived, Andrew Siffert of BMS Group put the likely range at $4 billion to $6 billion, below $10 billion. He warned that a stronger storm could produce exponentially higher losses, citing the gap between Hurricane Sally in 2020 and Hurricane Ivan in 2004. Isaias came in slightly stronger than first forecast, though weaker than the Category 3 peak that was feared.

Matthew Palazola, a senior insurance equity analyst at Bloomberg Intelligence, also expects single-digit billions. He said stronger Florida building codes could limit damage even as property values rise. Two relatively mild hurricane seasons have let insurers rebuild capital, he said.

Palazola also flagged a caveat. Florida's recent insurance reforms have improved market conditions but have yet to face a major test.

Exposure in the storm's path

Moody's estimated before landfall that 31,659 commercial properties across Alabama, Florida and Mississippi had a better than 50 percent chance of facing winds of at least 50 mph. That is the level at which some structural damage becomes likely. Their combined value is $71.8 billion. About 14,945 of them are multifamily residential buildings worth roughly $40.2 billion.

Mobile, Pensacola and Biloxi were the most exposed cities. James Cosgrove of Moody's said the storm was tracking much like Sally, which hit near Gulf Shores, Alabama, in September 2020 as a Category 2.

Phil Klotzbach, a Colorado State University researcher and Insurance Information Institute scholar, had forecast peak winds of 110 mph before wind shear would weaken the storm near the coast.

Power, oil and the flood threat

Nearly 750,000 utility customers in Alabama and Florida were without power early Saturday. PowerOutage.US counted 429,773 Florida customers dark as of 7 a.m. Gov. Ron DeSantis said more than 16,000 linemen were pre-staged to start restoration as soon as conditions allow.

Lt. Gov. Jay Collins said about 900,000 people left the storm's path. Initial damage reports were not dire, he said, though he cautioned that the full extent was still coming in. "This thing hit like a freight train," Collins said.

Offshore, producers halted about 70 percent of daily Gulf oil output ahead of the storm, according to the U.S. Marine Minerals Administration. No restart timeline has been given.

The National Hurricane Center says the threat is now water. Four to eight inches of rain are forecast across southern Alabama, the Florida Panhandle and Big Bend, and southwest Georgia, with localized totals up to 15 inches. Two to five inches, with isolated 10-inch totals, are expected across much of the rest of the Southeast. The agency warned of "considerable flash flooding and landslides" in the Southern Appalachians. Tornado risk was expected to last through Saturday afternoon across the eastern Panhandle, Georgia and the Carolinas.

Life-threatening surf and rip currents will persist along Gulf coasts in the U.S. and Mexico this weekend.

What is still unknown

No comprehensive damage assessment has been released. Insurers' figures are modeled estimates, not claims totals. They will move as adjusters reach flooded areas in southern Alabama and the Panhandle, where the heaviest rain is still falling.

The larger test is the one Palazola described. If actual claims land in the single-digit billions, Florida's post-reform market will have passed a modest first trial. A bigger number would show how much the reforms still have to prove.