Author: Ben Castellani (Page 237 of 358)

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.

DayCAST: Wed 10/24/18

October 24, 2018 / Ben Castellani

This morning is the big moment of the week....the one we have been talking about since Monday. A shortwave trough is moving through Colorado, though most of the energy is across the southern portions of the state. The axis will pass over Denver during the late morning hours. The GFS and NAM model precipitation forecasts were in fairly good agreement in yesterday's …

DayCAST: Tue 10/23/18

October 23, 2018 / Ben Castellani

The stable pattern across the western United States is breaking down as we speak this morning. Mid and upper-level moisture has increased significantly across Colorado under predominately southwesterly flow over the last 12+ hours, hence the thick cloud cover out there. As a broad trough moves across the state over the next few days, we'll see the passage of three weak …

This week in weather: October 22, 2018

October 22, 2018 / Ben Castellani

After a quiet weekend in weather, the blocking pattern across the West wears down which leads to chances for rain and snow across Colorado. We also discuss Category 4 Hurricane Willa currently bearing down on Mexico.

DayCAST: Thu 10/18/18

October 18, 2018 / Ben Castellani

The stagnant low pressure that has been in Arizona much of the week has lifted northward into Utah today. Later tonight it will move into western Colorado. The water vapor animation below from GOES-East runs from this past Sunday night through late last night. Watch the storm cut-off into Mexico, then slowly crawl northward into Arizona and finally Utah at the …

DayCAST: Wed 10/17/18

October 17, 2018 / Ben Castellani

The cut-off low pressure in Arizona has moved little in the last two days. It has grown in size, but not strength, leading to a slight uptick of southerly flow into Colorado at 500 mb today (see below). This will have little influence on our temperatures at the surface this afternoon...with readings very similar to yesterday in the mid to …

For the first time ever, Denver International Airport recorded snow before Boulder

October 16, 2018 / Ben Castellani

Did you know that Denver officially reported a half inch of snowfall way back on Saturday, October 6th before sunrise? Boulder’s first snow occurred four days later on October 10th. Yes, for the first time ever, Denver International Airport beat Boulder to the punch for the season’s first snowfall. We discuss how this happened and announce the winners of the 2018 First Snow Contest.

DayCAST: Tue 10/16/18

October 16, 2018 / Ben Castellani

The energy that brought widespread snowfall to the Front Range this past weekend has split from the jet stream forming a cut-off low pressure across Arizona (see below). In the wake of this transition, Colorado will be in a small ridge as a result. Winds at 500 mb will be weak and from the northeast today. If you're available, today would …