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Coastal Flood Warning Issued for Florida Keys

October 27, 2026 · wweather1 editorial · 1 min read

The National Weather Service in Key West has issued a Coastal Flood Warning for the Florida Keys, in effect from October 27 at 4:00 AM EDT until October 28 at 5:00 AM EDT. Major saltwater flooding is expected across the region.

The National Weather Service in Key West, Florida, issued the warning for the Monroe Upper Keys, Monroe Middle Keys, and Monroe Lower Keys. The coastal flood alert remains active until 5:00 AM EDT Wednesday.

Major saltwater flooding is anticipated throughout the area, especially at times of high tide. Little relief is expected during low tide, particularly in the Upper Keys.

Impacts from the flooding may cause numerous road closures. Low-lying properties, including homes, businesses, and critical infrastructure, will be inundated, and shoreline erosion is expected to occur.

Why it is dangerous and what to do

⚠️ Safety
• Take necessary actions to protect flood-prone property.
• Do not drive around road barricades.
• Avoid driving through water of unknown depth.
📊 The numbers, from wweather1 data
Key West: now +24°, Clear.
The record for this date is +29° (2019).
Three-day forecast: 27 October: +27°/+26° · 28 October: +28°/+27° · 29 October: +27°/+24°
The figures are computed automatically from the Open-Meteo/ERA5 archive — no eyeball estimates.

🌍 Weather in nearby cities

📰 Data source: NWS. Forecast and analysis — wweather1, based on Open-Meteo / met.no data.

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