3 weeks ago

Amid Floods and Deficits, India's 'Normal' Monsoon Feels Abnormal

Amid Floods and Deficits, India's 'Normal' Monsoon Feels Abnormal
Cloudbursts, Floods Yet Rain Deficit: Why Doesn’t India’s ‘Normal’ Monsoon Feel Normal Anymore? · news18.com

Every year, India gets a big season of rain called the monsoon.

This year, the rain was very uneven across the country.

Some places got too much rain, causing floods and landslides, while other places got almost no rain at all.

Even though the total amount of rain seemed normal, some areas had nearly ten times more rain than usual in just one day.

The India Meteorological Department checks if the monsoon is normal by comparing the rain to what has fallen on average over many years.

But that number does not tell us where the rain fell, how hard it fell, or whether it arrived when crops needed it.

Hotter air from climate change can hold more water, so when it rains, it often rains very hard and very fast.

This can make dry places drier and wet places wetter.

Scientists are finding that weather is becoming harder to predict, even with clues like El Niño.

That is why a 'normal' monsoon does not feel normal anymore.

Key facts

June rainfall deficit
38% below normal
Aug-Sep forecast
Below 94% of the long-period average
'Normal' monsoon range
96%–104% of the Long Period Average (LPA)
LPA baseline
868.6 mm per year (1971–2020 reference period, replacing 1951–2000's 880.6 mm)
Wayanad rainfall
24-hour rainfall nearly 10 times the average daily July rainfall
Ratnagiri landslides
Nearly 13 deaths over three days; traffic disrupted on the Mumbai-Pune Expressway near Khandala
Rajasthan dust storm
May 30; winds of 70–80 km/h hit Bikaner and neighbouring districts
Warmer air moisture
About 7% more moisture per 1°C temperature increase

Sources

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