CHENNAI: Tamil Nadu is headed for one of its worst November rainfall performances in recent years, raising concerns about the overall Northeast monsoon season, according to independent weather blogger Pradeep John, who runs the popular Tamil Nadu Weatherman handle.3

In a post on X (formerly Twitter), John said that historically, whenever November records sharply below-average rainfall, the Northeast monsoon for Tamil Nadu typically ends with less-than-normal seasonal totals. He noted that the Madden–Julian Oscillation (MJO), a key global weather phenomenon that enhances rainfall, is unlikely to return in December, reducing the chances of a late monsoon revival.

The normal rainfall for November in Tamil Nadu is 181.7 mm. However, data shared by John shows a significant deficit this year,

See Full Page