April Snowstorms: The Rule, Not the Exception

By Chris Martz – Re-Blogged From WUWT

Last week, the Great Plains and upper Midwest were pummeled with a late-season blizzard. A wide swath of 10 to 20+ inches of snow buried parts of Nebraska, South Dakota, North Dakota, Minnesota, and Wisconsin, with the highest totals in the 20 to 30 inch range centered in far western Minnesota, and much of South Dakota (Figure 1).¹ The storm was not technically a “bomb cyclone” because the air pressure didn’t drop 24 millibars within 24 hours, although it did get close.

Figure 1.Observed snowfall from Winter Storm Wesley – NWS Twin Cities.

The highest official snowfall report was 30.8 inches in Wallace, South Dakota, although higher amounts in scattered areas were more than likely.² On top of that, an ice storm occurred in numerous Midwestern states, a dust storm moved through the southern Plains, and 80 mph wind gusts were observed in Texas and New Mexico, while thundersnow was reported in other locations.²

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Wildfire Attribution Study Full of Smoke

By Bob Vislocky – Re-Blogged From WUWT

In light of the devastating wildfires that ravished California last month, I thought it would be interesting to critically review a frequently referenced article published in the Proceedings of the National Academy of Sciences in 2016 titled “Impact of Anthropogenic Climate Change on Wildfire Across Western US Forests” by John T. Abatzoglou and A. Park Williams.

http://www.pnas.org/content/113/42/11770

In the paper, which was the first and most significant quantitative effort to link climate change to wildfires, the authors conclude that roughly 50% of the wild fire acreage in the Western United States from 1979 to 2015 can be attributed to Anthropogenic Global Warming (AGW) as displayed in the figures below:

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