India: Monsoon to spread west; North to endure heat wave this week

By Eric Leister, AccuWeather senior meteorologist
June 20, 2018, 8:38:13 AM EDT

A recent break period in the monsoon will give way to more typical monsoon rainfall in the coming days across eastern India.

Showers and thunderstorms will increase in coverage each day through Thursday from Telangana to West Bengal and eastern Bihar.

Advancement to the north and west will follow from Friday into this weekend with rainfall potentially reaching areas from Madhya Pradesh to eastern Uttar Pradesh.

India 6/20

The rainfall will be largely beneficial in these areas; however, thunderstorms that produce frequent lightning will create a danger to anyone outdoors.

The heaviest monsoon rainfall this week will occur along and near the west coast of India and in northeast India from northern West Bengal into Assam.

Flooding has already resulted in more than two dozen deaths across northeast India and Bangladesh since last week, according to Reuters.

More than 1 million people have been displaced by the flooding across the region with Assam state being the hardest hit. Additional downpours into this weekend will cause further flooding and displacements.

In western India, daily rainfall is expected from Kerala northward through Maharashtra, including Kochi, Mangaluru and Mumbai.

The heaviest downpours will be concentrated from Kochi northward through Goa and into far southern Maharashtra.

Widespread rainfall of 100-200 mm (4-8 inches) was reported in these areas from Monday into Wednesday, and an additional 100-200 mm (4-8 inches) will fall through this weekend with local amounts in excess of 300 mm (12 inches).

Significant flooding is expected in the hardest hit locations along with an elevated risk for mudslides.

Travel disruptions are likely and some communities may be briefly cut off due to flooded or washed out roadways.

Mumbai is expected to remain north of the heaviest rainfall this week; however, there will be daily rainfall with the greatest chance for heavy downpours from Friday into this weekend.

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Meanwhile, residents of northern India will continue to endure dangerous heat this week as monsoon rain remains at least a week away from reaching areas from Gujarat to western Uttar Pradesh and the National Capital Region.

Daily high temperatures of 41-46 C (105-114 F) will create dangerous conditions, especially for the young and elderly.

Anyone that must be outdoors should attempt to avoid extended exposure to the heat during the hottest times of the day when heat-related illnesses are most likely to occur.

A bigger surge in the monsoon to the north and west is expected next week. This could bring rainfall to much of northern and western India, finally bringing relief from the relentless heat.

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