This is the forum page for the 2017-18 South-West Indian Ocean cyclone season.

  • Please sign your comments using four tildes (~~~~). Place comments that start a new topic at the bottom of the page and give them a descriptive header.
  • Please keep off-topic and political discussion to a minimum, and respect the guidelines listed to the right.
  • Keep betting pools off this page - there are separate forum pages for those. Refer to the seasonal discussion pages for listings of all the seasonal forums and/or betting pools.

Forum guidelines

Please respect etiquette and assume good faith. Also, be nice and remain civil.

Forum archives: None

Monthly Archives:
Storm Event Archives:

Other Basin Talkpages (2018): Atlantic - W. Pacific - E. Pacific - S. Hemisphere - N. Indian

Betting pools for this page

Related Pages:



Unexpectedly, one invest on the Southwestern Indian Ocean just formed. It's at a low chance of formation according to JTWC. I doubt this would form. Hi!- 02:49, August 9, 2017 (UTC)

Dissipated (according to JTWC). Anonymous 2.0 (talk) 19:04, August 10, 2017 (UTC)
Saw this a couple days ago on JTWC and was a bit surprised to see something being monitored down there during their winter. ~ Steve Talk PageMy Edits📧 05:03, August 12, 2017 (UTC)


Don't think many will read this, but we have another unusual early-season invest here in the SWIO. The JTWC is monitoring it with a low chance of development. ~ Steve Talk PageMy Edits📧 04:41, September 9, 2017 (UTC)

And another one... Hurricanes, hurricanes, hurricanes!- 03:57, September 11, 2017 (UTC)


Here to report that another pre-season invest has formed west of the Seychelles. And it's up on JTWC with code yellow (low chance of developing). ~ Steve Talk PageMy Edits📧 03:20, September 28, 2017 (UTC)

Ok, the pre-season invests are getting annoying now. Hurricanes, hurricanes, hurricanes!- 14:32, September 28, 2017 (UTC)
JTWC has now dropped it. ~ Steve Talk PageMy Edits📧 18:22, October 1, 2017 (UTC)



This was a short-lived invest that I remember seeing on Tropical Tidbits a couple days ago. It's dead now. The SHem should start ramping up soon. ~ Steve Talk PageMy Edits📧 19:58, November 18, 2017 (UTC)



North of Madagascar. No agency expects development, yet. ~ Steve Talk PageMy Edits📧 02:10, December 5, 2017 (UTC)

Now low risk on Meteo France. Still no mention on JTWC. Ava, anyone? ~ Steve Talk PageMy Edits📧 02:37, December 6, 2017 (UTC)
Off the Mateo France outlook and about to make landfall near the Tanzania-Mozambique border. This won't develop anymore. ~ Steve Talk PageMy Edits📧 02:35, December 9, 2017 (UTC)


A new invest just northeast of Madagascar. Low risk on Mateo France, and appears to have more Ava potential than 99S ever did. ~ Steve Talk PageMy Edits📧 02:35, December 9, 2017 (UTC)

Ad blocker interference detected!

Wikia is a free-to-use site that makes money from advertising. We have a modified experience for viewers using ad blockers

Wikia is not accessible if you’ve made further modifications. Remove the custom ad blocker rule(s) and the page will load as expected.