This week’s drought summary
Over the past few weeks, a series of atmospheric rivers brought significant amounts of rain and snow across parts of the West leading to improvements in soil moisture, streamflow, reservoirs levels and snowpack. This above-normal precipitation led to abnormal dryness and drought improvements in California, the Pacific Northwest, Great Basin and the central Rockies. Despite these improvements, long-term drought persists across much of the West. In the eastern United States, winter storms brought cooler temperatures and above-normal precipitation from the Mississippi Valley to the East Coast, leading to abnormal dryness and drought improvements in the Midwest, Northeast and Southeast. Meanwhile, persistent dryness led to the expansion of drought in the southern Plains and northern Rockies, while much of the Southern and High Plains regions remain largely unchanged
Precipitation fell across much of the South, halting most degradations or improvements this week. Up to two inches of precipitation fell from central Louisiana to southern Mississippi while much of Texas and Oklahoma received less than half an inch of rain. Precipitation over parts of southeast Oklahoma and eastern Texas were below normal, resulting in the expansion of abnormal dryness (D0) in this area. Severe (D2) drought and abnormal dryness was expanded in southern Texas in response to below-normal precipitation, declining streamflow and drying soils.