What the flood exclusion excludes
Standard homeowners and commercial property policies exclude flood, and they define it broadly to include surface water, overflow of a body of water, storm surge, and often mudflow. Because the definition is wide, most rising-water losses are not covered by the base property policy. The exclusion is a core reason many Florida homeowners are surprised after a storm.
Storm surge is flood, not wind
In Florida hurricanes this distinction is decisive. Wind damage is typically covered under the homeowners policy, but storm surge is treated as flood and is excluded. When a home is struck by both, carriers and policyholders dispute how much of the damage was wind, which is covered, versus surge, which is excluded. Anti-concurrent-causation language can make this fight even harder.
Where flood coverage comes from
Flood is generally covered through a separate flood policy, most commonly the National Flood Insurance Program (NFIP), with private flood policies also available. If your property sits in a flood-prone part of Florida, relying on the base property policy alone leaves a large uninsured gap, so it is worth confirming whether a flood policy is in place and what it covers.