Author: Ben Castellani (Page 20 of 358)

We had early indications last evening that the forecast was beginning to unravel. Frontal snow bands—initially expected to remain well north of the Denver/Boulder corridor—were instead pushing as far south as Loveland, Lyons, and even Niwot as the compact shortwave disturbance crossed northern Colorado. This southward displacement was the first sign that the system’s track was shifting. Ultimately, the disturbance …

Colorado is gearing up for several more days of active, unsettled weather as a broad longwave trough continues to hang over the western United States. The main axis of this system has now pushed onshore, stretching from Washington down through southern California. Out ahead of this trough, a deep plume of moisture and a cluster of small disturbances are streaming …

Today marks the beginning of what will be an active, high‑impact stretch of weather across all of Colorado—heavy Mountain snowfall, strong winds, and elevated fire danger depending on which side of the Divide you call home. Our storm system is assembling nicely this morning across the western U.S., with a broad longwave trough and parent low still anchored just offshore …

The hose of subtropical moisture is locked onto the southwestern United States this morning as a weak atmospheric river feeds into the region. GOES‑West water vapor imagery over the eastern Pacific clearly shows the moisture plume arcing from the Hawai‘ian Islands straight into the Front Range. With that firehose pointed our way, the Mountains statewide are in for a healthy …

After Boulder and Denver soared into the lower 70s yesterday—our warmest reading since Christmas—the pattern has finally snapped. A shallow but effective cold front slid through just before 11 PM Monday night, putting an end to the long‑running stretch of unseasonably warm, dry weather along the Front Range. Early this morning, low stratus has pooled up against the Foothills, draping …