1. Day temperatures are unseasonably warmer in Rajasthan, Punjab, Delhi, Haryana and H.P. See departure map below. This is due to the absence of active WDs and corresponding cool NW winds associated with it.In fact, next 2/3 nights, the minimum will also show a rise of 2/3c. This is before
2. the next WD, that is J-1 arrives over the Kashmir region and H.P.around 3rd Jan. The winds in Delhi then change to N/NW.
3. Another, stronger WD follows. J-2 will arrive over North Pakistan on 5th Jan and over North India by 6th Jan. Northern region will surely feel the cold on arrival of J-2.J-2 will cover regions in Central Pakistan and cross into Indian Punjab . Sharp drop and cold wave expected in Rajasthan, Gujarat and M.P. besides North and Central India.
Mumbai : Days will remain warmer than normal around 33/34c till 2nd Jan. Nights will be around 17c.Real effective drop in temperatures expected after J-2.Cold wave expected after J-2 in Nasik, Pune, Aurangabad and North Konkan.