Over 99% of the West has been in drought for the month of July and 4/6/2021 was the last time it was below 90%. Roughly 25% has been in exceptional drought since May. Over 60 million people (about 20% of the U.S. population) are estimated in the drought areas in the West. The definition of exceptional drought:
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Exceptional and widespread crop/pasture losses
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Shortages of water in reservoirs, streams, and wells creating water emergencies
The U.S. Drought Monitor has data for download including time series and GIS files.