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Map released: Thurs. May 28, 2020
Data valid: May 26, 2020 at 8 a.m. EDT

Intensity:

  • None
  • D0 (Abnormally Dry)
  • D1 (Moderate Drought)
  • D2 (Severe Drought)
  • D3 (Extreme Drought)
  • D4 (Exceptional Drought)
  • No Data

Author(s):


The Drought Monitor focuses on broad-scale conditions. Local conditions may vary. See accompanying text summary for forecast statements.


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West Drought Summary

Precipitation fell this week across much of Montana (excluding southwest Montana), Idaho, eastern Oregon, parts of Washington, central and northeast Nevada, northern Utah, northwest Wyoming, central Colorado, and parts of eastern Wyoming. New Mexico was mostly dry this week, aside from a bit of rain across the far northeastern high plains. Warmer than normal temperatures could be found in coastal California, but otherwise, below-normal temperatures were common across the Intermountain West. In western Utah, severe drought expanded westward as a result of worsened short- and long-term precipitation deficits. Severe drought expanded northward in central Idaho, where streamflow had become very low in the Big Lost River area. Farther northwest in Idaho, and in adjacent parts of northeast Oregon and southeast Washington, recent precipitation resulted in lessened precipitation deficits and improved streamflow, leading to improvements in drought conditions and abnormal dryness in these areas. Recent precipitation also led to the removal of moderate drought in northwest Montana. Areas of southwest Montana and adjacent northeast Idaho that missed out on the larger precipitation amounts this week slipped into moderate drought as a result of growing short- and long-term precipitation deficits. Severe drought was added to the map in southeast Oregon, where short- and long-term precipitation deficits continued to grow. Growing precipitation deficits over the water year and lessening streamflow led to the extension of moderate drought in a small part of north-central Oregon and adjacent south-central Washington. Recent precipitation led to a slight reduction in coverage of moderate and severe drought in western Oregon. Moderate drought coverage increased in eastern New Mexico due to increasing short-term precipitation deficits and high evaporative demand.

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