Weather across the country is warming up to the transition to pre-monsoon and summer.
Prevailing atmospheric systems and formations testify to this, if India Meteorological Department (IMD) updates are any indication.
HEAT WAVE
Parts of Gujarat have already slipped under heat wave conditions, in what is seen as a signal to emerging weather for the region. Some global predictions have suggested that Gujarat might witness moisture stress during the rest of the season.
An IMD warning for the next two days said that the heat wave conditions might continue to hold over this region.
Elsewhere, pieces of the pre-monsoon regime are falling into place, as observed from weather system formations.
A fresh western disturbance, the winter-time rain carrier trooping in from across the border, would affect the western Himalayan region from Friday.
RAIN POTENTIAL
But its rain potential to generate associated wet weather would now be confined to mostly the hilly areas. Rain or thundershowers could break out at one or two places over Jammu and Kashmir on Friday.
To the east, however, an upper air trough of lower atmospheric pressure (with potential for thundery weather) has locked into position. On Thursday, the trough ran down from sub-Himalayan West Bengal to north Bay of Bengal.
The ascending motion of air will cause the moisture content to cool and drop down as rain over east India.
VIOENT WEATHER
The proceedings would get progressively violent with thundershowers breaking out in the late afternoons and evenings over east India and the north-east.
Another trough (or wind discontinuity) ran down from Madhya Pradesh to south-east Arabian Sea across interior Maharashtra and Karnataka.
Wind discontinuity is a formation where opposing winds blow in and head into opposite directions, triggering potential weather.
Rain or thundershowers have been forecast for Nicobar Islands, Kerala, Lakshadweep, Tamil Nadu, Orissa and Andhra Pradesh.