Compared to one year ago, the area in drought in the western U.S. shrank from 89% to 73%, while the area in Exceptional Drought (D4) dropped from 25% to 7%. Spring storms in the Pacific Northwest and Northern Rockies removed drought in parts of those regions. A robust summer monsoon has improved drought in parts of the Southwest, especially western New Mexico. The Southwest, California, and even parts of the Northwest have been stuck in a 20+ year megadrought, influenced by climate change.
Compared to one year ago, the area in drought in the western U.S. rose from 77% to 88%, while the area in Exceptional Drought (D4) dropped from 22% to 3%. December 2021 storms brought more than 200% of normal precipitation to a large area of California and Nevada and in the Rockies west of the Continental Divide. These storms improved the drought status by 1–2 categories, according to the U.S. Drought Monitor, throughout much of the region.
This drought update is issued in partnership between the National Integrated Drought Information System (NIDIS), National Oceanic and Atmospheric Administration (NOAA) National Weather Service, and the U.S. Department of Agriculture (USDA), and the University of the Virgin Islands. The purpose of the update is to communicate a potential area of concern for drought expansion and/or development within Puerto Rico and the U.S. Virgin Islands based on recent conditions and the upcoming three month forecast.
This drought update is issued in partnership between the National Integrated Drought Information System (NIDIS), National Oceanic and Atmospheric Administration (NOAA) National Weather Service, and the U.S. Department of Agriculture (USDA), and the University of the Virgin Islands. The purpose of the update is to communicate a potential area of concern for drought expansion and/or development within Puerto Rico and the U.S. Virgin Islands based on recent conditions and the upcoming three month forecast.
As of July 13, 2021, 89% of the West is in drought and 25% is in Exceptional (D4) Drought. Both are U.S. Drought Monitor records. Much of the West was drought free just over 14 months ago, but drought conditions began developing around May 2020. A poor summer 2020 monsoon season followed by snow drought in winter 2020-21 worsened conditions in California and the Southwest. Record-shattering temperatures and dry conditions in the Northwest in early summer 2021 caused conditions to rapidly deteriorate in a region that was already facing multi-year precipitation deficits.
This drought update is issued in partnership between the National Integrated Drought Information System (NIDIS), National Oceanic and Atmospheric Administration (NOAA) National Weather Service, and the U.S. Department of Agriculture (USDA), and the University of the Virgin Islands. The purpose of the update is to communicate a potential area of concern for drought expansion and/or development within Puerto Rico and the U.S. Virgin Islands based on recent conditions and the upcoming three month forecast.
As of June 22, 2021, 90% of the Southwest and California is in drought, with 40% of this region in Exceptional Drought (D4), the highest level. Twelve months prior, most of the West was drought-free, but drought conditions began developing around May 2020. High temperatures and very low rainfall totals through spring and summer of 2020 set new records across the Southwest, and the combination of extremely low soil moisture leading into winter and snow drought through winter means that run-off in the spring of 2021 has been very low.
As of May 18, 2021, 93% of the Southwest and California was in drought, with 38% of this region in Exceptional (D4) Drought, the highest level. Twelve months prior, most of the West was drought-free, but drought conditions began developing around May 2020. High temperatures and very low rainfall totals through spring and summer of 2020 set new records across the Southwest, and the combination of extremely low soil moisture leading into winter and snow drought through winter means that run-off in the spring of 2021 has been very low.
This drought update is issued in partnership between the National Integrated Drought Information System (NIDIS), National Oceanic and Atmospheric Administration (NOAA) National Weather Service, and the U.S. Department of Agriculture (USDA), and the University of the Virgin Islands. The purpose of the update is to communicate a potential area of concern for drought expansion and/or development within Puerto Rico and the U.S. Virgin Islands based on recent conditions and the upcoming three month forecast.
This drought update is issued in partnership between the National Integrated Drought Information System (NIDIS), National Oceanic and Atmospheric Administration (NOAA) National Weather Service, and the U.S. Department of Agriculture (USDA), and the University of the Virgin Islands. The purpose of the update is to communicate a potential area of concern for drought expansion and/or development within Puerto Rico and the U.S. Virgin Islands based on recent conditions and the upcoming three month forecast.