Heat wave seen rebuilding over North and East India

Thiruvananthapuram, April 28 A helpful north-south trough along the east coast persisted on Monday even as India Meteorological Department (IMD) warned of heat wave conditions rebuilding over much of the North and East.

Severe heat wave conditions have developed over parts of Saurashtra and Kutch, and these were expected to last for another next two days as well.

Heat wave conditions also prevailed in some parts of Gangetic West Bengal and Coastal Orissa, and were forecast to evolve over parts of Rajasthan during the next 24 hours.

This will later spread to parts of Haryana, Punjab and Rajasthan, the IMD said. By May 2, heat wave conditions would have fully evolved over parts of Northwest, Central and East India.

The west to east trough in the westerlies straddling the plains of North India and running into East and Northeast India persisted. The parent western disturbance lay parked over Jammu and Kashmir.

The north-south trough from Jharkhand to Kerala now runs from Orissa to Kerala through south Chhattisgarh, Telangana, interior Karnataka and Tamil Nadu. The cyclonic circulation over Kerala had weakened.

This trough will continue to set up some weather from the north down to the south. Isolated rain or thunderstorm has been forecast over coastal West Bengal, Orissa and the Northeastern States.
THUNDERSTORM

Isolated rain or thunderstorm is likely over south Konkan, Goa and south madhya Maharashtra during the next two days.

Isolated thundershowers are likely over Kerala, Tamil Nadu, coastal and south interior Karnataka, Lakshadweep and Andaman and Nicobar Islands.

In its update, the IMD said that during the past 24 hours ending Monday morning, maximum temperatures have risen by 1 to 2 deg Celsius over the plains of Northwest India.
Mercury rise

Current meteorological analysis and interpretation of numerical weather prediction models indicated further rise by 2 to 4 deg Celsius in maximum temperatures over parts of Northwest, Central and adjoining East India during the next four days.

This is in agreement with international model outlooks that showed a huge seasonal anticyclone (high-pressure area with warming and subsiding air) pushing west from Northwest India.

Vidarbha and adjoining north interior Andhra Pradesh are bracing to witness some record heating during this phase. Parts of Chhattisgarh, Jharkhand and West Bengal also would see runaway mercury blazing a trail.