NHC: Tropical Depression Could Form by Mid-Week from Atlantic Wave Moving Off Africa
The National Hurricane Center said on August 23 a tropical wave off Africa, moving west at 15 to 20 mph, could become a depression by midweek and possibly Tropical Storm Dolly.
Original report
www.heraldtribune.com
Industry impact
Early-season tropical outlooks give operators and brokers lead time to watch Atlantic routing and Florida airport risk before any storm track is confirmed.
What happened
The National Hurricane Center issued a tropical outlook at 8 a.m. on August 23 saying a tropical wave forecast to move off the coast of Africa on August 24 could develop into a tropical depression by the middle to latter portions of the week. The wave was moving westward at 15 to 20 mph across the eastern and central tropical Atlantic, and forecasters said environmental conditions were expected to be marginally conducive for development. Forecasters said it is too early to determine whether the system will affect Florida.
If a named storm forms from the wave, it would be called Dolly, since Tropical Storm Christobal was the third named storm of the 2026 Atlantic season. The NHC is also tracking two other systems: a non-tropical low pressure area a few hundred miles west of Portugal, moving eastward toward Portugal and northwestern Spain at 10 to 15 mph but expected to encounter unfavorable conditions and dissipate, and Invest 95L, a broad area of low pressure a few hundred miles southeast of Bermuda that could see some development over the next few days as it drifts northwestward.
Forecasters note that over 60 percent of the Atlantic's total hurricane activity historically occurs between August 20 and September 30, with the season's peak on September 10. AccuWeather, in an updated forecast released August 19, lowered its prediction for the total number of named storms this season but still projected three to five direct impacts on the United States. The 30-year average for the Atlantic hurricane season is 14 named storms, seven hurricanes, and three major hurricanes.
Industry impact & what to watch
Early-stage tropical outlooks like this one are a routine part of the peak Atlantic season, when the majority of storm activity historically clusters in the weeks around September 10. Multiple disturbances tracked at once, as with this wave, the Portugal-bound low and Invest 95L, is typical of this window rather than unusual for it.
For business aviation, these outlooks function as an early trigger for contingency planning long before any track or landfall is confirmed. Operators and brokers with Florida or wider southeastern U.S. exposure use the days between an NHC mention and a possible depression formation to review aircraft positioning, alternate airports and passenger rebooking options.
The next markers to watch are whether the wave organizes into a depression by midweek, any subsequent NHC advisory naming a system Dolly, and how AccuWeather's already-lowered seasonal forecast compares with actual development as the season approaches its September 10 peak.
Who this affects
- Business Charter Operators — Operators serving Florida routes face a developing tropical system that could reach depression status by midweek, though no affected area is yet known.
- Charter Brokers — Clients booking Florida-bound trips this week face early-stage storm uncertainty with no confirmed impact area yet.
- General Aviation Airports — Florida-area general aviation airports enter the historically busiest stretch of the Atlantic season with a new system to monitor.
The underlying facts come from the originating publisher (linked above). The narrative, industry-impact assessment and per-role analysis below are produced independently by the AVI-GO intelligence team from public information. Cite as: AVI-GO, "NHC: Tropical Depression Could Form by Mid-Week from Atlantic Wave Moving Off Africa" news brief, 2026-08-24.
How to cite
AVI-GO, “NHC: Tropical Depression Could Form by Mid-Week from Atlantic Wave Moving Off Africa”. https://ai.avi-go.com/news/ai-news-center/news-briefs/nhc-tropical-depression-could-form-by-mid-week-from-atlantic-wave-movi-6b2c2bc2abf2d67f2129ee9da96312d8
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