Significant rise in temperatures likely over the northwest; rainfall continues over east, northeast

New Delhi, Wednesday, September 19, The temperatures over the northwest region of the country are set to rise significantly during the next week due to the absence of rainfall. However, the rainfall activities would continue in the eastern and the northeastern parts during the next twenty four to forty eight hours. Rain would also reduce along the West coast during the next twenty four hours.

Temperatures are expected to rise significantly in the region as the north northwesterly winds are approaching the region and would replace the prevailing moist southeasterly winds originating in the Bay of Bengal. However, the western end of the monsoon trough would remain active for the next twenty four hours to bring rain over Himachal Pradesh, Uttarakhand and West Uttar Pradesh. The cyclonic circulation over west Uttar Pradesh would also induce rains. Light to moderate rainfall would take place over these areas during the next twenty four hours with heavy at one or two places.

The western end of the monsoon trough would also become ineffective after the next forty eight hours. The monsoon trough is passing through Churu, Lucknow, Varanasi, Gaya, Digha and thence southeastwards to the eastcentral Bay of Bengal. Monsoon trough is essentially a region of intensified monsoon winds.

The rainfall activities are likely to continue over the eastern and the northeastern states as the eastern end of the monsoon trough is still active. Bihar, sub-Himalayan West Bengal, Sikkim, Assam, Meghalaya and Arunachal Pradesh would continue to receive moderate showers at many places during the next twenty four to forty eight hours. Downpour could be heavy at one or two places over these areas.

Chhattisgarh, east Madhya Pradesh, Orissa and coastal Andhra Pradesh would also receive showers at many places during the next twenty four hours due the prevailing cyclonic circulation over north Orissa.

The rainfall activities are likely to lessen profoundly over the central and western regions. The central regions in southeast Rajasthan, east Gujarat, west Madhya Pradesh and north Maharashtra would remain mainly dry during the next twenty four hours as there is no weather system to support rains.

Along the West coast, the rains are reducing at a brisk pace as the seasonal offshore trough has turned feeble. The trough is extending from Maharashtra to Karnataka coast. Though, light rain with moderate at one or two places along the coastal areas of Konkan, Goa and Karnataka would occur during the next twenty four hours. In the southern Peninsular region, the weather would remain mainly dry as the rains are reducing and boosting the mercury level.