Daily NOAA Atlantic Tropical Weather Outlook For Florida: August 21, 2026

NOAA/NHC is monitoring two Atlantic formation areas on August 21: the Northeastern Atlantic at 20% through 48 hours and seven days, and the Central Subtropical Atlantic at 10% through 48 hours and 20% through seven days.

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Daily Florida hurricane-season check for August 21, 2026: The National Hurricane Center is monitoring two Atlantic formation areas. Both remain in the low category, with seven-day formation chances of 20 percent. Neither outlook area establishes a forecast track toward Florida, and conditions can change as later outlooks are issued.

NOAA National Hurricane Center seven-day Atlantic tropical weather outlook valid August 21, 2026 at 1:37 AM EDT, showing two low-chance disturbance areas: one in the northeastern Atlantic and one in the central subtropical Atlantic; exact text-product chances are 20% and 20% for the northeastern area and 10% and 20% for the central area
Official NOAA/NHC Seven-Day Graphical Tropical Weather Outlook, valid at 1:37 AM EDT Friday, August 21, 2026. It depicts two yellow, under-40% seven-day formation areas; exact 48-hour and seven-day percentages are reported from the text product in the article. Credit: NOAA/National Hurricane Center.

Quick Read

  • Official text issue time: 2:00 AM EDT Friday, August 21, 2026.
  • Product: ABNT20 KNHC 210537 / TWOAT.
  • Area covered: The North Atlantic, Caribbean Sea, and Gulf of America.
  • Systems or areas being monitored: Northeastern Atlantic and Central Subtropical Atlantic.
  • Northeastern Atlantic: Formation chance through 48 hours—low, 20 percent. Formation chance through 7 days—low, 20 percent.
  • Central Subtropical Atlantic: Formation chance through 48 hours—low, 10 percent. Formation chance through 7 days—low, 20 percent.
  • Active tropical cyclones: None listed in this outlook.
  • Florida/Treasure Coast: Formation chances describe development, not destination. This outlook does not establish a Florida track or local landfall threat.

What NHC Is Monitoring

Northeastern Atlantic

NHC says a non-tropical area of low pressure is developing along a front over the northeastern Atlantic, a few hundred miles north-northeast of the Azores. It could separate from the front and acquire some subtropical or tropical characteristics on Saturday or early Sunday while moving east-southeastward at 10 to 15 mph toward Portugal and northwestern Spain.

  • Formation chance through 48 hours: low—20 percent.
  • Formation chance through 7 days: low—20 percent.

Central Subtropical Atlantic

NHC says a weak area of low pressure is over the central subtropical Atlantic, a few hundred miles east-southeast of Bermuda. It is producing a concentrated area of showers and thunderstorms southeast of its center. Surface pressures are relatively high, so any development is expected to be slow while the system drifts west-southwestward through Sunday and then turns northward early next week.

  • Formation chance through 48 hours: low—10 percent.
  • Formation chance through 7 days: low—20 percent.

Important: These percentages are formation probabilities, not probabilities of reaching Florida. NHC does not provide a Florida track or landfall forecast for either area in this outlook.

What This Means for the Treasure Coast

For Port Saint Lucie, Jensen Beach, Fort Pierce, and Vero Beach, today’s outlook is a reminder to watch official updates without treating distant formation areas as local storm forecasts. The northeastern Atlantic area is described near the Azores and moving generally toward Portugal and northwestern Spain. The central subtropical Atlantic area is east-southeast of Bermuda and is expected to move slowly before turning northward early next week.

Conditions and probabilities can change between outlooks. Use NHC products for tropical development, and follow local emergency-management instructions if watches, warnings, or evacuation orders are issued.

Practical Hurricane-Season Tech Check

  • Charge power banks and test the cables used by every household phone.
  • Confirm important documents and irreplaceable photos have a backup that is not stored only on one computer.
  • Save account-recovery details and critical contacts somewhere available during an internet outage.
  • Enable emergency alerts on each phone and test a battery-powered weather radio.
  • Review family, pet, medication, and evacuation plans before a storm threatens.
  • Small businesses should test cloud backups, UPS batteries, remote-access procedures, and a simple staff communication plan.

Official Sources and Preparedness Links

Reporting cutoff: 7:03 AM EDT (11:03 UTC) on August 21, 2026. This report reflects the NOAA/NHC Atlantic Tropical Weather Outlook issued at 2:00 AM EDT and the official seven-day graphic valid at 1:37 AM EDT. Conditions can change; recheck the linked NHC products for the newest information.