02 Aug 2013:
Prolonged Heat Wave Leaves
Russian Arctic Vulnerable to Wildfires
An enduring high-pressure weather system over the Russian Arctic has led to a prolonged heat wave, creating conditions for another surge in wildfires
a year after a particularly extreme wildfire season. NASA scientists say that a so-called “blocking high” system — in which rain-bearing systems are blocked from moving west to east — has caused temperatures to reach 90 degrees F (32 degrees C) in the northern city of Norlisk, where daily highs in July typically average 61 degrees F (16 degrees C). Using satellite data, NASA produced a map that vividly depicts the land surface temperature anomalies in the region during the week of July 20-27, with temperatures soaring as high as 37 degrees F above normal. A separate satellite image shows smoke billowing from several fires burning in one of the areas, in the Khanty-Mansiyskiy and Yamal-Nenetskiy districts. According to scientists, the Siberian fires are burning in areas far north of where summer wildfires typically occur.
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