The space agency yesterday released an animated map that provides satellite-based estimates of rainfall over southeastern India on December 1–2, accumulating in 30 minute intervals.

At least 250 people have died, several hundred have been critically injured, and thousands affected or displaced by the flooding that has ensued.

NASA said the rainfall data come from the Integrated Multi-Satellite Retrievals for GPM (IMERG), a product of the Global Precipitation Measurement mission.

"But those northeasterly winds also blow over the warm waters of the Bay of Bengal, where they evaporate a great deal of moisture from the sea and dump it over southern and eastern India. Coastal eastern India receives 50 to 60 percent of its yearly rainfall during this winter monsoon," it said.

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