Temperatures have gone up all over the region in the last 4/5 days. The IMD map shows the deviation of night temperatures to be above normal all over the region. They have gone up by 2/4c in the northern areas and 4/6c in the central regions of India.
The nip in Mumbai's air seems to be also waning slowly, since the temperature shot up by 3c on Saturday/Sunday (11/12th.). In Colaba, minium 20.5 Celsius temperature was recorded while in Santacruz the minimum temperature was 17.2 degree Celsius. According to IMD , the rise in temperature is due to to a wind circulation in south Gujarat. This caused cloud formation and rainfall in parts of Maharashtr. Jalgaon received 1cm rainfall on Saturday.
However, with another "fairly strong" W.D. approaching, initially the temperatures are likely to rise further by 2/3c in the northern plains.This is because of the warm moisture laden southerlies preceding the system.
The W.D., is likely to bring rain/snow to the western Himalayas during the 3 days from 14th.Jan, and rain to the plains of Punjab, Haryana, Delhi and north Rajasthan from the 15th. to 18th. Some models show the formation of a secondary low over Rajasthan during this period. This may attract south -west moisture laden winds, and bring some rain to southern Rajasthan and M.P.
Subsequently, after the passage of this system, we can expect a renewed cold spell in the northern and central regions of India.Warm southerlies will again give way to cold dry northerlies as the cold front retreats.
Meanwhile, much of northern and eastern Europe were in the grip of a severe cold snap.Much of Europe continues to be plagued by arctic conditions as high pressure remains firmly in control - trapping in stagnant bitterly cold air.
Thus, the first seven days of January were colder than normal by (6.8 degrees C) at Paris and by (7.3 degrees C) at Warsaw.
The eastern part of Germany was the worst affected region, with temperatures sinking as low as minus 26c at Delitzsch in the state of Saxony.
Berlin experienced its coldest night of the year, with temperatures dropping -19 centigrade in parts of the capital. Daytime temperatures were slightly warmer at -9c.
Germany experienced its coldest night in 22 years on Tuesday last,6th.Jan.
Scotland had readings down to -12 or -13 degrees C ,Benson, Oxfordshire, England, came in with -12 degrees C early Tuesday.