The hottest weather so far this year has arrived in the West and will continue through early this week in the Southwest. Last Thursday brought the year's first triple-digit temperature reading anywhere in the country when Death Valley, California, logged an official high of 101 degrees. Death Valley topped out a degree higher at 102 degrees on both Saturday and Sunday. On Monday, the high was 103 degrees, which ties the all-time record high there for the month of March. In Arizona, Phoenix clocked its fourth consecutive day in a row with high temperatures above 95 degrees on Monday. This is the earliest that this has happened there since records began in 1895.
A ridge of high pressure is responsible for the record warm temperatures that we have seen in the West. While generally above-average temperatures will persist in the Southwest early this week, a Pacific cold front and an attendant southward dip in the jet stream should knock temperatures back at least to seasonal averages in the Northwest, northern Rockies and northern Great Basin by Tuesday.
Link:http://www.weather.com/forecast/national/news/record-warm-march-west
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