The India Meteorological Department says India is caught in sharply contrasting conditions, with worsening heatwave days in Delhi, Uttar Pradesh, Haryana, Rajasthan, Gujarat and Maharashtra, even as rain, thunderstorms, lightning and hail may strike Bihar, Odisha, Madhya Pradesh and parts of the Northeast. The simultaneous shift could disrupt travel and daily routines across regions.
The IMD projects monsoon rainfall will hit about 100% of the Long Period Average for India, with a small model error margin. But the catch is regional: monsoon patterns have historically varied sharply across different parts of the country, meaning “normal” overall may not feel normal everywhere.
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India’s IMD will continue using statistical models for monsoon forecasts, but the Ministry of Earth Sciences is increasing its focus on dynamic modeling. The move signals a push to improve forecast realism and potentially accuracy, while keeping familiar statistical approaches in place during the monsoon season transition.
The IMD has issued a weeklong weather outlook for Himachal Pradesh, forecasting light rain, snowfall, and thunderstorms in isolated to a few locations. Despite unsettled weather spells, temperatures are expected to remain above normal across many parts of the state, adding a contrasting mix of warmer days with brief rain and snow activity.
The India Meteorological Department has issued a yellow alert for New Delhi, forecasting around 43°C on Wednesday. Maximum temperatures are expected to remain between 42°C and 44°C, fueled by clear skies and hot winds. The heatwave is also likely to persist for several more days, with conditions expected to continue until April 24.
India’s monsoon outlook is benchmarked against the Long Period Average, but the story is messier than the acronym suggests. The IMD’s forecasting process, who sets the benchmark, and how consistent past forecasts have been all matter—especially since markets respond to April updates even though the monsoon season begins in June.
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