IMD’s Regional Weather Center issued a “red alert” for Mumbai, forecasting heavy to very heavy precipitation in the country’s financial capital on Wednesday.
Previously, the MeT office had sounded an “orange alert”, but it is now replaced by a “red alert” for Wednesday due to “favorable synoptic conditions,” said Dr Jayant Sarkar, head of the regional weather center here.
Heavy rains also hit the metropolis on Sunday and Monday.
“There are two favorable synoptic situations for heavy to very heavy rains in Mumbai today and in the coming days. The offshore trough, which stretches from the southern coast of Gujarat to Karnataka, is expected to increase the intensity of the showers. “Sarkar said.
The second factor is the “shear zone” (referring to wind models) developed over Mumbai and the neighboring region, he said.
Sarkar, there will also be widespread rainfall over Konkan and central Maharashtra.
The Marathwada region is also expected to receive widespread showers through Thursday and the intensity of the rains is expected to decrease thereafter, he said.
There is an offshore trough between Maharashtra and Karnataka, which typically carries moisture-laden westerly winds from the Arabian Sea to land, another official from the MeT office said.
On top of that, there is an “east-west shear zone crossing Maharashtra” and this is in addition to the prevailing favorable monsoon conditions, he said.
These two synoptic systems cause very heavy rains to Konkan, Goa and central Maharashtra, especially the Ghat regions, the official said.
IMD alerts are color coded from green to red. A “green” alert means “no warning”: no action should be taken by authorities, and the forecast is light to moderate rain. A “red” alert means “warning” and asks authorities to “take action”. An orange alert indicates that authorities should be ready.
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