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The natural world. Looking pretty for 3.5b years.

Super Hot

Super Hot

Author: Hugh Bollinger/Monday, June 19, 2017/Categories: natural history, space science, sustainability, environment, climate change

                  Furnace Creek Temperature June 18, 2017, Death Valley NP (credit: National Park Service)

The western part of the USA will experience super-hot and muggy weather over the next 7-10 days. California, Arizona, Nevada, and Utah have a 'heat anomaly' of searing temperatures well above 100F. The extreme heat is caused by a high-pressure, atmospheric system that will be stationary over the affected region.

According to NOAA's National Center for Environmental Prediction (NCEP) temperatures along the California coast will range above 90F; the agricultural Central Valley could reach 115F; the inland deserts 120F+; while temperatures in central Azizona potentially could exceed 122-123F. The argicultural impact to crop production and water supplies isn't known but California's Central Valley is one of the nation's prime regions for producing fruit, vegetables, and other ag-products.

Two graphics developed by the NOAA environmental data centers show predicted temperature severities of the heatwave.


 Heat Anomaly Western US June 18-22, 2017 (credit: NCEP)  CA Central Valley Temperatures, 6-19-2017 (credit: NWS)

Besides the normal concerns to maintain hydration and protect kids and pets against heat stress, the current heat anomaly will be exaggerated by high moisture levels in the air. Originating from an ''atmospheric river" in the Pacific Northwest, the increased humidity will cause the heat to feel even more oppressive even along the coast. According to weather researchers associated with San Diego's Scripps Institute of Oceanography: "the weather models now suggest that the high pressure ridge may re-strengthen considerably after weakening only slightly turning this already remarkable heatwave into a 10+ day event"

While it is difficult to measure the extent that climate change affects individual weather events, the amplitude, ie severity, of an extreme event is affected. Watch out!



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