Punjab: Interaction of weather systems brought rain and storm

Punjab: Rainfall of varying intensity, thunderstorms and gusty winds lashed many places in northwest India, including the capital, in the last 24 hours, affecting normal life and disrupting air flights. According to the India Meteorological Department (IMD), thunderstorms accompanied with gusty winds with speeds reaching 70-100 kmph were witnessed at many places over Jammu and Kashmir, Ladakh, Delhi and Odisha, while low-intensity winds with speeds reaching 40-70 kmph lashed some places over Punjab, Himachal Pradesh, Uttarakhand, Haryana, Chandigarh, Rajasthan, Vidarbha, Chhattisgarh, Kerala, interior Karnataka and coastal Andhra Pradesh. Punjab received 9.9 mm rainfall in the last 24 hours, while Haryana received 12 mm and Himachal Pradesh received 2.8 mm rainfall. Punjab and Haryana received heavy rainfall, while Himachal Pradesh received below normal rainfall during this period. Western Disturbance
Hailstorms have also been reported at isolated places over Himachal Pradesh, Punjab, Haryana, Chandigarh, East Uttar Pradesh, Bihar, Madhya Pradesh, Vidarbha, Chhattisgarh, Telangana and South Interior Karnataka. This rain is occurring due to interaction of several weather systems prevailing over different parts of the country. A Western Disturbance in the form of a cyclonic circulation lies over South Punjab and adjoining North Rajasthan and West Haryana at mid-tropospheric level. An upper air cyclonic circulation lies over Southwest Rajasthan at lower tropospheric level along with an upper air cyclonic circulation over Northeast Rajasthan and adjoining Northwest Madhya Pradesh. Besides, a trough, which is a linear area of ​​low atmospheric pressure, is running from this cyclonic circulation up to Bangladesh at lower tropospheric level and another trough is running from Punjab to North Kerala at lower tropospheric level. Western disturbances play an important role in weather conditions and are the major source of non-monsoonal rainfall in northern and northwestern India during summer and winter. These originate from the Mediterranean Sea region and move eastward over the Indian subcontinent, receiving moisture from sources such as the Mediterranean Sea, the Caspian Sea, and the Black Sea. Western disturbances are a common phenomenon, with a higher frequency in winter than in summer.

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