BoulderCAST Daily – Tue 07/22/25 | Slow-moving monsoon storms may cause localized flooding through midweek

Moisture from the subtropics—yep, the good ol’ summer monsoon—is surging north into Colorado this week. A favorable setup is taking shape: strong high pressure is parked over the Gulf Coast while a stubborn trough lingers in the Pacific Northwest. The flow between these two systems is coming straight up from the south, loaded with moisture and sprinkled with embedded shortwaves. …

Ben Castellani

Ben grew up in southwestern Pennsylvania and holds both a bachelor's and a master's degree in Meteorology, the latter being from CU Boulder. His hometown received nearly three feet of snow from the Storm of the Century back in March of 1993, sparking his initial interest in impactful weather. Ben currently works on remote sensing and data analysis software at NV5 Geospatial Software in Boulder.