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The Drought Monitor summary map identifies general areas of drought and labels them by intensity. D1 is the least intense level and D4 the most intense. Drought is defined as a moisture deficit bad enough to have social, environmental or economic effects.
- West
The National Drought Mitigation Center’s mission is to...
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The U.S. Drought Monitor is a weekly assessment of the...
- West
The U.S. Drought Monitor (USDM) is a map that is updated each Thursday to show the location and intensity of drought across the country. The USDM uses a five-category system, labeled Abnormally Dry or D0, (a precursor to drought, not actually drought), and Moderate (D1), Severe (D2), Extreme (D3) and Exceptional (D4) Drought.
- West Overview
- Great Plains Overview
- Mississippi River Basin
- Northeast
- Southeast
- Hawaii
- Alaska
- Puerto Rico and U.S. Virgin Islands
- U.S.-Affiliated Pacific Islands
The West (Rocky Mountains to Pacific Coast) has been suffering from a multi-year drought characterized by years with low precipitation and persistent unusual warmth. Half or more of the last 22 years have been drier than the long-term average, with 2013 ranking as the second driest year regionwide in the 1895-2022 record, 2020 ranking as fourth dri...
The Great Plainsof the U.S. stretches from Montana and North Dakota to Texas. This large region experienced diverse weather anomalies during 2022: 1. January, June, and September were dry across much of the region. 2. The central Plains were dry during February. 3. The northern and southern Plains were dry during March while parts of the central Pl...
The Mississippi River experienced the lowest water levels in a decade near Memphis, Tennessee and Vicksburg, Mississippi in October, closing off a vital channel to barge traffic at a crucial time of the year for transport of crops from the nation's heartland. This resulted from the development and intensification of drought in some of the river's t...
Drought affected parts of the Northeast during 2022. The year began with drought in northern New England and along the Mid-Atlantic coast. Dry conditions during late spring and in the summer led to drought development and expansion across southern New England. Beneficial fall and early winter precipitation virtually eliminated drought from the regi...
Various parts of the Southeast experienced drought at times during 2022. The region began the year with 16.2% drought coverage. The drought area decreased during February, increased during the summer, reaching a peak of 26.7% of the region on July 5, decreased again during late summer and early fall, then increased in the late fall to peak at 30.9%...
Hawaii began 2022 drought-free. A drier-than-normal January resulted in rapid drought expansion, especially on the Big Island to Molokai. The drought area reached a peak of 86.4% of the islands on February 8 before gradually decreasing to a minimum 24.3% in June. Dry weather returned during the summer, with most (94.0%) of the state in moderate to ...
Alaska was free of drought and abnormal dryness for most of 2022. Moderate to severe drought developed during the summer, reaching a peak extent of 17.9% of the state on July 5. The areas affected stretched from the southwest to the northeast interior. Dozens of large wildfires developed during the summer. One million acres had burned by June 18 — ...
The year began with drought across the U.S. Caribbean islands — moderate drought was affecting St. John (in the U.S. Virgin Islands) (USVI) and a fourth (28.0%) of Puerto Rico, St. Thomas was experiencing severe drought, and extreme drought was afflicting St. Croix. Drought contracted on Puerto Rico and the intensity decreased across the USVI durin...
In the U.S.-Affiliated Pacific Islands (USAPI), 2022 began with moderate drought affecting Kapingamarangi (in the Federated States of Micronesia) (FSM) and Wotje (in the Marshall Islands) (RMI). By February, Kapingamarangi was abnormally dry but Fananu (FSM) had developed moderate drought, and drought had expanded in the RMI with Wotje now having e...
The U.S. Drought Monitor is a weekly assessment of the extent and severity of drought in the United States. It’s a map released every Thursday, showing parts of the U.S. that are in drought, based on various sources of data collected through the previous week.
National Drought Highlights. Based on the Palmer Drought Index, severe to extreme drought affected about 26% of the contiguous United States as of the end of September 2022, about the same as last month. About 1% of the contiguous U.S. fell in the severely to extremely wet categories.
Aug 21, 2024 · The U.S. Drought Monitor 1-week change map shows where drought has improved, remained the same, or worsened since the previous week's Drought Monitor. Yellow/orange hues show areas where drought worsened, while green hues show drought improvement.
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The U.S. Drought Monitor (USDM) is a weekly map—updated each Thursday—that shows the location and intensity of areas currently experiencing abnormal dryness or drought across the United States. The maps use bright colors to highlight experts' current assessments of conditions related to dryness and drought.
