**Recent heat, persistent high pressure, and soil moisture deficits have driven localized expansions of D4 (exceptional drought) across parts of the West, Southern Plains, and Upper Midwest as of late August 2026, with D4 covering roughly 1.5–1.75% of the contiguous U.S. according to USDM data valid through August 25.** The US Drought Monitor, produced jointly by the National Drought Mitigation Center, NOAA, USDA, and NASA, classifies D4 as the most severe category, reflecting historic dryness, major crop/pasture losses, and widespread water shortages. States such as Colorado, Idaho, New Mexico, Nebraska, Nevada, and a few others currently show measurable D4 areas, while D3 (extreme) has expanded in Oregon, Washington, and portions of the southern Plains amid temperatures frequently exceeding 100°F and limited rainfall. This supports the market's near-even split, with the 10+ states outcome at 47% reflecting potential further degradation before the September 1–early September USDM update, while lower brackets at 37.5% align with D4 remaining confined to a handful of western and central states if monsoonal or scattered relief materializes. El Niño development offers longer-term context but limited near-term relief, and the weekly USDM release timing adds resolution uncertainty given rapid changes in flash drought indicators.