Monsoon Patterns Shift in August: Regional Rainfall Variability Expected The monsoon season in India is showing signs of changing patterns in August, with some regions anticipating relief through rainfall while others face the risk of drought. According to the latest forecast from the European Centre for Medium-Range Weather Forecasts (ECMWF), the distribution of rainfall across the country will not be uniform. The analysis, covering the period from August 14 to September 8, highlights significant differences in expected precipitation levels. In eastern India, several regions including Jharkhand, Chhattisgarh, Odisha, and West Bengal are projected to receive adequate rainfall during the remaining days of August. This could help alleviate earlier deficits in these areas. Meanwhile, western, southern, and northwestern parts of the country, such as Saurashtra-Kachchh, Maharashtra, Telangana, Karnataka, Andhra Pradesh, Punjab, and Haryana, are expected to experience below-average rainfall. The implications of this disparity are particularly concerning for states like Saurashtra-Kachchh, where prolonged dry spells have already led to water shortages. If the anticipated rainfall fails to materialize, these regions could face worsening conditions, with some areas potentially entering a drought-like scenario. The forecast also notes that the monsoon's retreat is not yet certain. While the India Meteorological Department (IMD) has traditionally marked September 17 as the typical date for the monsoon's withdrawal, the ECMWF model suggests that the monsoon could linger beyond this date. The decision to declare the monsoon's end depends on multiple factors, including sustained low rainfall, reduced humidity, and other atmospheric conditions.#india #india_meteorological_department #chhattisgarh #jharkhand #ecmwf
First El Niño Impacts Now Detected in the June Weather Forecast for the United States and Canada The 2026 North American summer season is entering a critical transition phase as a strong El Niño event begins to show its influence. Recent data confirms that the phenomenon, characterized by warm ocean temperatures in the equatorial Pacific, is already altering atmospheric pressure and temperature patterns across the United States and Canada. Scientists are now observing the first detectable changes in weather systems, signaling the start of a significant climatic shift. The article highlights that the El Niño event is progressing rapidly, with early signs of its impact already visible in June. Ocean temperature anomalies, driven by westerly wind bursts that push warmer subsurface waters toward the surface, are creating a distinct warm signal in the tropical Pacific. These changes are reflected in models like the NCEP CFSv2, which predict a strong El Niño exceeding the threshold of a "Super El Niño" event, marked by anomalies of +2 or higher. The development mirrors historical records of the strongest El Niño events, suggesting this year could rival or surpass past extremes. The atmospheric response to the oceanic changes is also evident. The ECMWF forecast for June shows a clear El Niño circulation pattern, with rising air over the Pacific and sinking air over the Indian Ocean. This shift in atmospheric motion, known as the Walker Cell, is a hallmark of El Niño and indicates that June will mark the first month of weather patterns transitioning into El Niño mode. The jet stream is expected to amplify over the Pacific, leading to distinct pressure anomalies. Low-pressure systems are anticipated over eastern Canada, the eastern United States, and the southern U.S., while high-pressure ridges will form over the northern U.S.#el_nio #ncep_cfsv2 #ecmwf #walker_cell #atlantic_canada
