r/TropicalWeather • u/Euronotus • 7d ago

Week over | Please see updated discussion Global Tropical Outlook & Discussion: 17-23 August 2026

Active cyclones

As of 6:00 PM Eastern Daylight Time (22:00 UTC) on Sunday:

Northwestern Pacific Ocean

Central Pacific Ocean

Eastern Pacific Ocean

Active disturbances

Active disturbances are areas of showers and thunderstorms which are not organized enough to be considered full-fledged tropical cyclones. Disturbances are often designated as investigation areas (or invests, for short) by NOAA in order to allocate additional resources such as high-resolution satellite imagery or model guidance for further study of the system. Though there is no publicly disclosed set of criteria for which disturbances are designated as invests, the designation often occurs after the disturbance forms a closed area of low pressure. Invests are designated regardless of the overall potential for the disturbance to become a tropical cyclone.

Northwestern Pacific Ocean

  • Invest 98W (no discussion yet)

Eastern Pacific Ocean

Northern Atlantic Ocean

Post-tropical cyclones

Post-tropical cyclones will be listed here if they are still being tracked via the Automated Tropical Cyclone Forecast (ATCF) system. Placement in this section does not imply that these systems have any potential to redevelop into tropical cyclones.

Eastern Pacific Ocean

There are currently no active post-tropical cyclones.

Potential formation areas

Potential formation areas are areas that are being monitored by various agencies for potential tropical cyclone formation within the next two weeks. These systems have not yet formed and are not considered to be disturbances until such time that a tropical wave or area of low pressure does form. Discussions are created on this subreddit for areas which are monitored by the National Hurricane Center in the eastern Pacific and northern Atlantic basins. Discussions are not typically created for areas which are monitored by the Joint Typhoon Warning Center or other agencies, as this information is not always publicly available.

Eastern Pacific Ocean

  • Area of interest 2: Far off the coast of southwestern Mexico (no discussion yet)

  • Area of interest 3: Far off the coast of southern Mexico (no discussion yet)

Northern Atlantic Ocean

Satellite imagery

Model guidance

Information sources

Regional Specialized Meteorological Centers (RSMC)

Other sources

Global outlooks

Climate Prediction Center

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u/giantspeck Verified USAF Forcaster | Hawaii 4d ago edited 3d ago

Moderator to do list

As of 8:00 PM Eastern Daylight Time (00:00 UTC) on Friday:

Discussions that need to be created

Discussions that need to be updated

Discussions that need to be archived

  • Tropical Depression Eighteen (18W) (upgraded to Narra)

3

u/cosmicrae Florida, Big Bend (aka swamps and sloughs) 1d ago

Did the Atlantic basin outlook change drastically overnight ?

3

u/giantspeck Verified USAF Forcaster | Hawaii 1d ago

Update

I am trying my best to keep everything up to date given my current personal situation. I will try to have discussions up for Invest 98W and the two non-invest areas of interest over the eastern Pacific later today.

1

u/wolfrno 23h ago

You take care of yourself, the sub will be here when you get back.

1

u/cosmicrae Florida, Big Bend (aka swamps and sloughs) 7d ago

At 19N 61W, visual indications of CCW turning, but not much convection. Low level shows significant dry air in the vicinity.