Tropical Cyclone Anais

Tropical Cyclone Anais

Anais formed as a tropical storm over the southern Indian Ocean on October 12, 2012, and strengthened into a tropical cyclone the next day. By October 15, 2012, the U.S. Navy’s Joint Typhoon Warning Center (JTWC) reported that Anais had maximum sustained winds of 100 knots (185 kilometers per hour) and gusts up to 125 knots (230 kilometers per hour). The storm was located about 540 nautical miles (1,000 kilometers) southwest of Diego Garcia.

The Moderate Resolution Imaging Spectroradiometer (MODIS) on NASA’s Terra satellite captured this natural-color image of Anais on October 14. The storm sported an open eye that allowed the satellite sensor a clear view to the ocean surface.

The JTWC forecast that Anais would gradually weaken over the next few days as it headed in the direction of Madagascar. As of October 15, Anais was forecast to dissipate before making landfall.

  1. References

  2. Joint Typhoon Warning Center. (2012, October 15) Tropical Cyclone 01S (Anais) Warning. [Online] URL: Accessed October 15, 2012.
  3. Unisys Weather. (2012, October 15) Anais Tracking Information. Accessed October 15, 2012.

Images & Animations


File Dimensions

  • 720x480
  • JPEG
  • 7200x9400
  • JPEG 12 MB
  • GeoTIFF 95 MB
  • KMZ 2 KB

Note: Often times, due to the size, browsers have a difficult time opening and displaying images. If you experiece an error when clicking on an image link, please try directly downloading the image (using a right click, save as method) to view it locally.


  • Data Date:

    October 14, 2012
  • Visualization Date:

    October 15, 2012
  • Sensor(s):

    Terra - MODIS
NASA - National Aeronautics and Space Administration