Hisar town in Haryana sizzled at 46.2 degrees Celsius as the heat wave returned to Haryana and Punjab in full steam on Saturday.At all places across the region, the temperatures remained above 42 degrees as heat wave conditions swept through the plains.The maximum temperatures at most places were up to four degrees above normal, Met officials said.Chandigarh recorded a high of 42 degrees while in Haryana, Karnal saw a high of 43 degrees and Ambala 42.3.Amritsar city in Punjab recorded a high of 44.5 degrees, while Patiala and Ludhiana recorded highs of 43.8 and 42.8 degrees respectively.Met department officials said heat wave conditions and dry weather would prevail over the region in the coming days.