No change was made to the drought areas in the rest of the region…Ĭolorado Drought Monitor one week change map ending February 21, 2023. Moderate to exceptional drought was trimmed in a few areas of northwestern and eastern Kansas, and adjacent parts of Nebraska, while abnormal dryness and severe drought were trimmed in southern Colorado. The rest of the region received little to no precipitation. Weekly precipitation totals were half an inch to over an inch in parts of Wyoming, Colorado, northern and eastern Kansas, southern and eastern Nebraska, and southeast South Dakota. Drought or abnormal dryness contracted or reduced in intensity where it was wet over parts of the Four Corners area, southern and central Plains to Upper Mississippi Valley, and the Big Island in Hawaii… High PlainsĪ storm system tracked across southern parts of the High Plains region early in the week, with another late in the week tracking across northern Wyoming. Drought or abnormal dryness expanded where it continued dry in parts of the Pacific Northwest, southern Plains, and Florida. It was a drier-than-normal week across much of the West, southern Plains, coastal Southeast, and southern Great Lakes to New England, and parts of the northern to central Plains. The week was wetter than normal across parts of the northern Rockies, from the Four Corners states to western Great Lakes, and from the central Gulf Coast states to Ohio Valley and Mid-Atlantic states. As the week ended, weather systems moved across the northern tier states, bringing areas of snow. Two weather systems early in the week generated above-normal precipitation across parts of the central to eastern CONUS. A southerly flow between the trough and eastern ridge spread warm, moist air from the Gulf of Mexico across the eastern CONUS and directed weather systems northeastward from the southern Plains to Great Lakes. Strong high pressure over the Gulf of Mexico extended into a ridge across the East Coast. An upper-level trough developed over the western CONUS downstream from the ridge, and the trough was responsible for a cooler-than-normal week over the West. This resulted in a generally drier-than-normal week over much of the West. Drought Monitor (USDM) week (February 15-21). Here’s an excerpt: This Week’s Drought SummaryĪn upper-level ridge over the northeastern North Pacific Ocean deflected Pacific storm systems away from the West Coast of the contiguous U.S. Colorado Drought Monitor map February 21, 2023.Ĭlick the link to go to the US Drought Monitor website. West Drought Monitor map February 21, 2023. High Plains Drought Monitor map February 21, 2023. Here’s an excerpt: US Drought Monitor map February 21, 2023. Click on a thumbnail graphic to view a gallery of drought data from the US Drought Monitor website.
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