August 21, 2026 Friday Tropical Atlantic Update
Eyes on a tropical wave in the Eastern Atlantic early next week. A non-tropical low pressure off Portugal may get the next name.
August 2026 was the warmest August in the 132-year national record (1895–2026), at 75.6°F against a 1991–2020 normal of 73.1°F (+2.5°F).
August 2026 was the 22nd-driest August in the 132-year national record (1895–2026), at 2.3in against a 1991–2020 normal of 2.7in (-0.4in).
NOAA/NCEI Climate at a Glance, contiguous United States. This is the observed record for the month, not a score of anything said in this piece — the forecast ledger begins 2026-08-17 and cannot reach earlier posts.
Atlantic basin comes back to life early next week with models showing a tropical storm in the Main Development Region in 6-days BUT the development signal has decreased compared to Thursday significantly presumably due to Saharan Air Layer and Dust
A non-tropical area of low pressure off the coast of Portugal (yes, not a typo) may transition into a named tropical storm (Dolly — 20% from NHC)
The rest of this piece is for paid subscribers of Weather Trader. The Post keeps the archive, the index and the record; the writing itself stays behind the same subscription it was published under.
Read the full piece →- Milepost
- 1013 · laid 2026-08-21T17:00:13.498000Z
- Source
- https://weather.substack.com/p/august-21-2026-friday-tropical-atlantic
- Digest
- 4ed1dc6887177d5ff093d685d92c648695b5693950f6b28b0e8b81a2ace4e005
- Machine
- JSON