Monsoon 2022 arrives in Kerala on May 31st, 2022 signalling monsoon onset
The 4-month long monsoon season signalled its arrival over mainland India, as the monsoon currents reached Kerala on May 31st, 2022. This signals an early arrival by 1-day. According to the analysis by team WeatherCast, all the dynamical factors that are required for monsoon onset over mainland India has been satisfied. Very briefly, we summarise them below: 1. The westerly wind depth persists from surface to ~3.5 km that is commonly observed during monsoon season. This condition has been observed at many places over Kerala. 2. Under the influence of a gradually strengthening Somali jet, the low level wind speed over Kerala has increased to an average value of 12-15 knots. In the adjoining parts of Arabian Sea, the wind speed is much higher, showing values as large as 30 knots. Therefore, the wind speed is also quite sufficient for declaration of monsoon onset. 3. Light to moderate rainfall persistent activity has been seen over many parts of Kerala, and Karnataka. 4. The cloudine...