Academically Southwest Monsoon season starts from 1st June and ends on 30th September according to IMD. As we explain often this seasonal calendar is to ensure long term data availability is consistent. It is essential data remains consistent to understand long term changes in rainfall pattern. Prior to 2020 the withdrawal date for Southwest Monsoon…
Cyclone to form over Arabian Sea the 1st in 40 years during August
North Indian Ocean has two distinct cyclone seasons. The first characterised as Pre Monsoon during April and May which at times spills over into June. The 2nd characterised at Post Monsoon which coincides with Northeast Monsoon. IMD which is the RSMC for North Indian Ocean basin has a an exhaustive FAQ section on Tropical Cyclone….
Monsoon Jet picks up pace supported by back to back Lows
The Monsoon Jet or more commonly called Somali Jet is an integral component of the Indian Summer Monsoon (ISMR). Monsoon has been in existence from time immemorial. The term Monsoon which originated in French can trace its roots to the Arabic word “Mausim”. As early as 334 BC Aristotle had mentioned about reversal of monsoon…
MJO arrives, Monsoon to gradually revive
Tropical waves govern Monsoon intra seasonal oscillations across the globe. In this MJO plays a very key role modulating the strength of the monsoon. Additionally MJO along with ER many a times is the trigger for cyclogenesis during post monsoon periods. Over the past few months there has been a battle royale between MJO and…
Monsoon remains weak awaits the arrival of MJO trigger
Southwest Monsoon over the past few days has been weak with thunderstorms dominating most parts of the Indian sub continent. The daily rainfall chart while not indicating a classic “Break in Monsoon” period does show below average rainfall status. On the other hand the daily rainfall chart for TN & PDC has saw 11th straight…