Cold wave conditions have spread to east India with dense fog conditions blocking incoming solar radiation and bringing down day temperatures. An India Meteorological Department (IMD) outlook on Thursday said that cold wave conditions would continue to hold over many parts of Orissa, Jharkhand and Chhattisgarh for a couple of days.

WESTERLY MOVING AWAY

The frigid climes might break out fresh over Punjab, north Rajasthan, Haryana, Delhi and west Uttar Pradesh from Friday.

This is because the weather-maker western disturbance with its warmer head is moving to the east and away from Jammu and Kashmir where it was located overnight. A weather warning issued by the IMD said that dense fog conditions with visibility reducing to 100 metres or less in the morning hours and cold day conditions would unfold over parts of east Uttar Pradesh and Bihar on Friday.

The colder air that fills the plains after the western disturbance leaves the region, is expected to precipitate ground frost over parts of Punjab, Haryana, Delhi, north Rajasthan and west Uttar Pradesh during the weekend.

DENSE FOG

The last 24 hours ending Thursday morning saw dense to very dense fog spread out over many parts of east Uttar Pradesh and in isolated pockets of Punjab, Haryana, west Uttar Pradesh, Bihar and Assam. Parts of Delhi and sub-Himalayan West Bengal too witnessed foggy weather. Stations where visibility reduced to 50 metres or less are Ludhiana, Patiala, Pilani, Pantnagar, Churu, Shahjahanpur, Hissar, Lucknow, Sultanpur, Allahabad, Varanasi, Bahraich and Gaya. Cold wave conditions prevailed over parts Chhattisgarh, Orissa, Jharkhand, east Uttar Pradesh, east Madhya Pradesh and Bihar.

LOWEST TEMPERATURE

The stations where minimum temperatures dropped to 4deg Celsius or less are Amritsar, Ludhiana, Ganganagar, Agra, Lucknow, Fursatganj, Varanasi, Nowgong, Umaria and Gaya.

The lowest minimum temperature of 1.2 deg Celsius was recorded at Bhatinda in Punjab. Meanwhile, the European Centre for Medium-Term Weather Forecasts said in its seasonal forecasts that almost the entire northern half of India would witness normal to cold winter during January-February-March. Parts of eastern India, especially Odisha and West Bengal, could be the rare exceptions to this trend where the mercury could rise above normal.

The contiguous north peninsula (Maharashtra, Andhra Pradesh, parts of north Tamil Nadu) might also see elevated temperatures during this season.

>Vinson@thehindu.co.in

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