Delhi would continue to witness moderate to strong winds from north and northwest direction during the next 24 hours. Rain will be observed at a few places in the Western Himalayan states of Jammu & Kashmir, Himachal Pradesh during this period. Rain would also occur in northeastern states and in east over sub-Himalayan West Bengal and Sikkim in the coming 48 hours. There are possibilities of thunder-squalls at many places in the country during the next two to three days.
The high pressure area in the hills of Western Himalayan region and the low pressure zone in the northwest plains are pushing forth moderate to strong winds from north and northwest direction towards the capital New Delhi and almost entire northwest and Gangetic plains where these winds are slowing down a bit.
The apparent effect of such high-speed winds is that in spite of increase in temperatures warmth is not being felt. But as these winds would slow down in the next 24 to 48 hours, warmth would return. Till then places like Delhi would have pleasant weather that the city yearns for.
The Western Disturbance that lies over Jammu & Kashmir while moving eastward would give rain at a few places in Jammu & Kashmir, Himachal Pradesh and Uttarakhand during the next 24 hours.
There will more rain in northeastern states of Arunachal Pradesh, Assam, Meghalaya, Nagaland, Mizoram, Manipur, Tripura and in the east over sub-Himalayan West Bengal and Sikkim during the next two to three days. A cyclonic circulation is persisting over these states and rain will occur at a few locations during the period.
Increased heating has led to formation of low pressure zones in the country. One of them is persisting in east Madhya Pradesh and adjoining areas of Vidarbha. There is a weather forecast for thunder-squalls during the next three days over east Madhya Pradesh, Chhattisgarh, Orissa in the east and Punjab Haryana, north Rajasthan in northwest and over northeastern states.
Thunder-squalls that consist of high-speed winds with rain are essentially a movement of upward and downward wind currents in a vertical path. When there is moisture in the lower levels of the vertical path, the upward current cannot push these moist winds upwards after reaching a certain height and thus it comes down with speedy winds and rain.
Photograph by Vasenka