Wednesday, May 18, 2011

Mercury rising as heat wave prevails in North-West


The mercury level has been seeking new highs in the central and northwest India as heating of the regions sustained from over the weekend.
An India Meteorological Department (IMD) update on Tuesday afternoon said that heat wave conditions have been prevailing over parts of Rajasthan, south Uttar Pradesh and north Madhya Pradesh and isolated pockets of Punjab and Haryana.
But the highest maximum temperature of 46.8 deg Celsius was recorded elsewhere, at Khajuraho in Madhya Pradesh, as the core heat expanded its foot-print east-southeast.
A weather warning from IMD said that heat wave conditions would continue to hold over parts of Rajasthan, Haryana, Punjab, Delhi, Uttar Pradesh and Madhya Pradesh during this period.
Meanwhile, it maintained the watch for a fresh western disturbance crossing over the border affecting the western Himalayan region and adjoining plains of northwest India from Thursday onwards.
An extended outlook until Sunday (May 22) said that scattered rain or thundershowers would occur over western Himalayan region and adjoining plains of northwest India.
A seasonal upper air trough runs from Punjab to Mizoram across Haryana, Uttar Pradesh and Jharkhand with an embedded upper air cyclonic circulation over West Uttar Pradesh and neighbourhood.
A weather warning valid for the region said that isolated thunder squalls would occur over Jharkhand and West Bengal and Sikkim until Friday.
Another upper air cyclonic circulation has sprung up over southeast Arabian Sea in lower levels. It is seen steering the moisture laden winds to precipitate rain over the Kerala coast over the next few days.
Satellite cloud imagery on Tuesday morning showed convective (rain-bearing) clouds over parts of east-central Bay of Bengal, west Assam and Meghalaya.

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