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Flood · Guide

Storm surge vs. rainfall flood in Miami-Dade: same policy, different water

Miami-Dade floods in more than one language. Surge comes from the bay and the open water. Rainfall sits on streets that drain into already-full canals. Both can enter a house. A flood policy is written for inundation from surface water — not for every wet event, and not for a slow roof leak in August.

May 6, 2026 · 6 min read · Miami-Dade & Florida

Surge: the bay, the river, the mapped VE and AE

Storm surge is flood. It is the water the hurricane models draw over shoreline, barrier islands, and inland creeks. FEMA maps try to show that risk with VE and AE zones. The maps lag new rainfall, new fill, and new construction. They are still what NFIP uses.

If you are east of US-1, on a canal in Palmetto Bay, or anywhere the tide already kisses the seawall, surge is not theoretical. Building coverage, foundation type, and whether you have enclosures below elevated floors all change the claim.

Rainfall: the Miami afternoon that does not move

A stalled cell over Doral can put a foot of water on a street that is in Zone X. That water is still flood if it is surface water that enters the house. It is the claim people think they do not need because the map is blue somewhere else. Miami-Dade’s drainage system is working until it is not. Then everyone on the block is taking video.

Carpets, lower cabinets, HVAC on the ground, and cars in the driveway are the usual inventory. The cars, again, are comprehensive on auto — not this policy.

Backup vs. flood, a distinction adjusters will draw

Water that rises from outside onto the lot and into the door is flood. Water that comes up through a drain or sewer without a general flood can be backup — often a homeowners endorsement, often a small sublimit, often not flood. In a real Miami storm you can have both. You want both conversations done in May, not in October.

We check the HO-3 or HO-6 for backup endorsements when we place flood. The Palmetto approach is to stop pretending one policy is the other.

Contents on the first floor, and what people store there

Florida rooms, converted garages, and first-floor storage take the first water. NFIP and private flood treat some of that property differently, especially below the lowest elevated floor. If you keep inventory, tools, or a second fridge at grade, tell us. Photographs help more than adjectives.

Replacement cost on contents is a private-flood selling point we actually use. Actual cash value on a ten-year sofa is a smaller check than people imagine.

What to do before the season, not during it

Photograph each room, keep the elevation certificate in the same folder as the policy, know the deductible, and know whether you have contents coverage at all. Some loan-required flood policies are building-only. Building-only is a wet house with no money for the inside.

Quote flood while the sky is boring. That is the whole strategy.

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Same desk that wrote the guide. Auto and home quote online. Other lines, an advisor.

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