This Week’s Drought Summary
Abundant monsoonal precipitation again spread from the Southwest as far as eastern Nevada, southern Idaho, southern and western Wyoming, and western Colorado. Totals exceeding an inch were common, and 2 to 4 inches doused some of the higher elevations, especially across the central Rockies and Intermountain West. Most other areas of dryness and drought recorded at least light precipitation, but totals were not enough to significantly improve dryness and drought from the Plains eastward. Conditions deteriorated in several areas where there was little or no rainfall, specifically the northern Plains from eastern Montana through western Minnesota, from central Kansas and adjacent Colorado northward into Nebraska, across northeastern Arkansas, over the central Virginias, and in the climatologically dry areas of the Far West. Temperatures fluctuated during the week, with unusual heat covering central and southeastern parts of the country early in the period, but restricted to near the Gulf Coast by the end of the period. On the other hand, abnormally hot conditions slowly developed in much of the West after a relatively mild start (due in large part to monsoonal rainfall).
Scattered patches of dryness can be found in the South, but they are few and far between. One to two months of subnormal rain prompted new, small areas of abnormal dryness (D0) in northeastern Tennessee and part of northeastern Arkansas. The latter area has seen 30 to 65 percent of normal precipitation in the past month. A small new D0 area was also introduced in the eastern Red River Valley while dryness slightly expanded in Oklahoma and remained intact across lower reaches of the Big Bend. Other areas remained free of significant dryness.