Southwest Indian Ocean Tropical Weather Update – November 7, 2026

ORBIS WEATHER | TROPICAL CYCLONE MONITORING

By Paul Harrison | Orbis Weather

Saturday, November 7, 2026 | Southwest Indian Ocean

Tropical Disturbance 02 Threatens Northern Madagascar as Cyclone Season Begins to Develop

Tropical activity is increasing across the Southwest Indian Ocean as a developing weather system moves toward northern Madagascar, bringing the possibility of strengthening winds, heavy tropical rainfall and localized flooding over the coming days.

The system, officially designated Tropical Disturbance 02-20262027, has been monitored by Météo-France’s Regional Specialized Meteorological Centre (RSMC) in La Réunion.

Forecast guidance indicates that the disturbance could strengthen into a moderate tropical storm before approaching northern Madagascar late Sunday or early Monday.

Meanwhile, the World Meteorological Organization (WMO) has released its outlook for the 2026–2027 Southwest Indian Ocean cyclone season, predicting below-average overall activity despite the possibility of dangerous individual storms.

1. Current Tropical Cyclone Activity

Latest verified official bulletin: November 5, 2026. November 7 observations remain to be confirmed.

These figures are from the November 5 Météo-France bulletin and should not be interpreted as live November 7 measurements.

The disturbance developed over the tropical waters northeast of Madagascar, in an area where warm ocean temperatures can support tropical storm formation when atmospheric conditions are favorable.

As the system moves southwestward, forecasters are monitoring whether its circulation becomes better organized and whether sustained winds increase sufficiently to reach tropical storm intensity.

Forecast track and intensity

The November 5 official forecast projected the following positions:

These are historical forecast positions issued November 5, not confirmed observations. Actual intensity, location and landfall timing may differ.

2. Madagascar: Heavy Rainfall and Flooding Concerns

Northern Madagascar is the primary area of concern as the developing disturbance approaches the island.

Forecast reporting on November 6 indicated that the system could reach Madagascar overnight Sunday into Monday, bringing heavy rainfall and strong winds to northern and northeastern districts.

Potential hazards include:

• Heavy rainfall: Intense tropical downpours could cause localized flooding, particularly in low-lying communities.

• Flash flooding: Rapid rises in streams and rivers are possible where rainfall becomes concentrated.

• Strong winds: Squally conditions could affect exposed coastal communities.

• Rough seas: Deteriorating marine conditions could disrupt fishing and small-vessel operations.

• Landslides: Steep terrain may become vulnerable if prolonged rainfall saturates the ground.

The exact severity will depend on the storm’s organization, speed and track.

Residents in northern Madagascar should follow the latest guidance from Madagascar’s national meteorological service and local disaster-management authorities.

3. Mauritius, Rodrigues and Réunion

Mauritius and Rodrigues

The developing disturbance is being monitored across the waters north and northeast of the Mascarene Islands.

Based on the earlier forecast track, the main circulation was expected to move toward Madagascar rather than directly across Mauritius or Rodrigues.

Nevertheless, marine operators should monitor updated forecasts for changes in wind, swell and sea conditions.

Réunion

Météo-France reported no cyclone alert for Réunion in its November 5 bulletin and expected no influence from the disturbance over the following five days.

This was subsequently supported by November 6 reporting, which indicated no direct influence was expected on Réunion.

These statements describe the verified advisories available for this report, not a newly confirmed November 7 alert status.

4. Mayotte and the Comoros

Although the system’s primary forecast track takes it toward northern Madagascar, its later evolution could influence weather across the northern Mozambique Channel.

Reporting on November 6 indicated the possibility of deteriorating rainy and thundery conditions around Mayotte between Monday and Wednesday, following the system’s passage across Madagascar.

Areas to monitor include Mayotte, the Comoros archipelago and surrounding maritime routes.

The main concerns are potentially heavy showers, thunderstorms and localized flooding. The likelihood and severity of these hazards will depend on how the disturbance evolves after interacting with Madagascar.

No cyclone alert was in effect for Mayotte in the verified November 5 official bulletin.

5. Mozambique Channel and East African Coast

The Mozambique Channel is another important region to monitor as the disturbance approaches northern Madagascar.

Tropical systems entering or crossing the channel can encounter environmental conditions that support further development, although land interaction can also weaken their circulation.

For the November 7–11 period, the main monitoring areas include northern Mozambique, the Comoros, Mayotte and the northwestern coast of Madagascar.

There is not enough verified information to forecast a direct cyclone impact on Mozambique from this system. Any suggestion of a later crossing or redevelopment remains speculative until supported by updated official forecasts.

Coastal communities should monitor marine warnings and rainfall forecasts, especially where thunderstorms could affect fishing, transport and coastal operations.

6. Southwest Indian Ocean Cyclone Season Outlook 2026–2027

The World Meteorological Organization published an important seasonal forecast on November 5, indicating that the Southwest Indian Ocean could experience a quieter-than-average cyclone season.

The outlook includes Tropical Storm Agueda, which formed in October.

Why is a quieter season expected?

Two major climate influences are contributing to the forecast.

El Niño: An exceptionally strong El Niño is expected to peak during November or December 2026 and persist into early 2027. Changes in atmospheric circulation and wind patterns could make conditions less favorable for tropical cyclone development across parts of the basin.

Negative Subtropical Indian Ocean Dipole: This climate pattern is another factor influencing regional rainfall, ocean conditions and tropical cyclone activity.

However, fewer storms do not necessarily mean a safer season. A single intense cyclone can cause catastrophic damage if it strikes a populated coastline.

7. Seasonal Rainfall Outlook

The WMO’s November 2026–January 2027 outlook also highlights significant regional rainfall differences.

For February–April 2027, above-normal rainfall is favored across the Mascarene Islands.

These are seasonal probabilities, not forecasts for individual days. Even regions expecting below-normal seasonal rainfall can experience severe flooding from a single tropical storm.

8. Five-Day Tropical Weather Outlook: November 7–11

The following outlook combines the verified official storm forecast with broader regional hazards. It is not a newly issued five-day official advisory.

The confidence in the later stages is lower because the forecast depends on the disturbance’s interaction with Madagascar and its subsequent movement.

9. What Orbis Weather Is Watching

Over the coming days, Orbis Weather will focus on five important developments.

1. Storm organization: Whether Tropical Disturbance 02 strengthens into a named moderate tropical storm.

2. Madagascar landfall: The location, timing and intensity of any crossing of the northern coastline.

3. Rainfall and flooding: Whether heavy rain develops over vulnerable coastal communities and mountainous areas.

4. Mayotte and Comoros: Whether rainfall and thunderstorms become more widespread early next week.

5. Mozambique Channel: Whether any residual circulation survives the crossing of Madagascar and remains organized over water.

Changes in storm movement, forward speed or structure could significantly alter the forecast.

10. Tropical Cyclone Safety Information

Residents and visitors across cyclone-prone areas should take practical precautions when official alerts are issued.

• Monitor national meteorological warnings and civil-protection announcements.

• Avoid flooded roads, river crossings and low-water bridges.

• Secure loose outdoor equipment when strong winds are forecast.

• Keep drinking water, medication, lighting and communications equipment available.

• Fishermen and recreational boaters should check marine warnings before departure.

• Follow evacuation instructions from local authorities where necessary.

Flooding and dangerous seas can occur outside the immediate center of a tropical storm, even where sustained winds are relatively modest.

11. Official Tropical Weather Sources

Orbis Weather uses established meteorological agencies and scientific organizations for tropical weather monitoring.

Official national meteorological services and emergency authorities should always be the primary source for local warnings and protective decisions.

12. Orbis Weather Summary – November 7, 2026

The Southwest Indian Ocean is entering an important early-season monitoring period.

Tropical Disturbance 02-20262027 is the main system of concern, with earlier official forecasts indicating possible tropical storm strengthening and a subsequent approach to northern Madagascar.

Heavy rainfall, strong winds and localized flooding are the principal potential hazards, while Mayotte and the Comoros may experience deteriorating conditions during the early part of next week.

The broader 2026–2027 cyclone season is forecast to be less active than average, partly because of strong El Niño conditions. Nevertheless, the threat posed by individual storms remains significant.

The key development to watch is the disturbance’s approach to northern Madagascar and whether its circulation survives land interaction.

Editorial Methodology and Forecast Disclaimer

Report date: November 7, 2026, Southwest Indian Ocean local calendar date.

Prepared by: Paul Harrison, Orbis Weather.

Information cutoff: This article incorporates verified information available through November 6, 2026, including Météo-France’s November 5 tropical cyclone bulletin, November 6 regional reporting and the WMO’s November 5 seasonal outlook. A newer official November 7 cyclone bulletin was not independently verified for this edition.

Methodology: Orbis Weather reviews official meteorological bulletins, tropical cyclone forecasts and published scientific outlooks. Observed storm conditions are distinguished from projected tracks and potential hazards. Seasonal forecasts are presented as probabilities rather than guaranteed outcomes.

Accuracy and corrections: Tropical cyclone information can change rapidly. Forecast positions, intensities and potential impacts may be revised as new observations become available. Material errors should be corrected promptly and clearly identified in the published article.

Important disclaimer: Orbis Weather is an independent weather information and news publication. It does not issue official cyclone warnings, evacuation orders or emergency instructions. Readers should consult national meteorological agencies and local emergency-management authorities for the latest safety-critical information.

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By Paul Harrison | November 7, 2026