Extreme Weather

How dry is Arizona?

From the climate.gov article Western Drought 2021 Spotlight: Arizona by Tom Di Liberto (7/29/2021): Looking back even farther by using a drought indicator known as the Standardized Precipitation Index, the current drought in Arizona is also the worst on record back to the late 1800s. Going back even farther than …

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How Low is Lake Mead?

The Bureau of Reclamation posts the end of month elevation for Lake Mead dating back to 1935. I created the graph of minimum yearly end of month elevation starting in 1940 since Hoover Dam was only created in 1935. Here is the R code to create the graph including importing …

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What do we know about hurricanes?

The article NASA and Hurricanes: Five Fast Facts by Katy Mersmann (6/1/2021) has the answers. The 2021 Atlantic hurricane season starts today, June 1. Our colleagues at NOAA are predicting another active season, with an above average number of named storms. At NASA, we’re developing new technology and missions to study storm formation …

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Are hurricanes getting stronger?

Climate Central provides some graphs and facts related to hurricanes in their article Stronger Hurricanes (9/23/2020).  The graph shows the trend in Atlantic water temperature and here are the related key concepts from the article: Sea surface temperatures in the tropical Atlantic, known as the Main Development Region for tropical …

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How much of the U.S. is in drought?

The United States Drought Monitor is your source for drought information. Starting with the main graph, copied here, you can select regions and then down to state levels. From the data tab you can select time series graphs, download tabular data by selected region, as well as obtain GIS files. …

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How many billion-dollar disasters?

The Climate.gov article 2010-2019: A landmark decade of U.S. billion-dollar weather and climate disasters by Adam B. Smith (1/8/2020) reports: During 2019, the U.S. experienced a very active year of weather and climate disasters. In total, the U.S. was impacted by 14 separate billion-dollar disasters including: 3 major inland floods, 8 …

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Are hurricanes lingering near the coast longer?

The NASA research feature Tropical Cyclones are Stalling More by Kasha Patel (6/619) reports on hurricanes that stall for two days or more near U.S. coasts (graph copied here). In a study published on June 3, 2019, scientists from NASA and the National Oceanic and Atmospheric Administration (NOAA) showed that North …

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