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Coastal Flood Warning Issued for Florida Keys

October 28, 2026 · wweather1 editorial · 1 min read

The National Weather Service in Key West, Florida, has issued a Coastal Flood Warning for the Florida Keys, effective until 5:00 AM EDT on Thursday, October 29. Major saltwater flooding is expected across the region.

The National Weather Service issued the warning at 4:00 AM EDT on October 28. The affected area encompasses the Monroe Upper Keys, Monroe Middle Keys, and Monroe Lower Keys.

Major saltwater flooding is expected, particularly during times of high tide. According to weather officials, there will be little relief during periods of low tide, with impacts being especially pronounced in the Upper Keys.

Potential impacts include the closure of numerous roads across the area. Low-lying property, including homes, businesses, and critical infrastructure, is expected to be inundated, and some shoreline erosion will 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°, Overcast.
That is 1° above the October climate norm.
The record for this date is +29° (2021).
Three-day forecast: 28 October: +28°/+27° · 29 October: +27°/+24° · 30 October: +26°/+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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