Author: Ben Castellani (Page 209 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: Tue 09/24/19

September 24, 2019 / Ben Castellani

Continued quiet under split-flow The weather today will be tranquil as a split-flow pattern has developed across the western United States. A strong cut-off low has taken a nose-dive into Baja California, while the polar jet stream remains to our north in Wyoming and Montana. This leaves Colorado in a surprisingly warm and dry northwest flow regime. Expect sunny skies …

DayCAST: Thu 09/19/19

September 19, 2019 / Ben Castellani

A troughy end to the week Southwest flow continues across Colorado today helping to bring northward deeper moisture to the area. This flow is in response to a potent trough approaching from the west. This system will weaken and move slowly across Wyoming and Montana over the next few days. Before the first trough axis passes tomorrow, it will help provide …

DayCAST: Wed 09/18/19

September 18, 2019 / Ben Castellani

Another overall nice day With the change in seasons just a handful of days away, it's no surprise that we are starting to see more impressive storm systems bombarding the Pacific Northwest and almost making it far enough south to bring some real weather to Colorado. Seattle is well on the way to its wettest September on record thanks to the onslaught. …

DayCAST: Tue 09/17/19

September 17, 2019 / Ben Castellani

Too far north... The trough which had looked so formidable in the models late last week is arriving tamer than originally shown and too far north to cause much cause for concern in Colorado today. The passing wave can be seen across Wyoming and Montana in the GFS 500 mb height anomaly forecast map below. Notice how the base of …

This week in weather: September 16, 2019

September 16, 2019 / Ben Castellani

Two strong Pacific storm systems are moving ashore this week but unfortunately will pass mainly north of Colorado. This will result in continued warm conditions with little opportunity for rainfall or Mountain snow as we conclude the summer season.

DayCAST: Sun 09/15/19

September 15, 2019 / Ben Castellani

More clouds, but still hot The zonal pattern that was present yesterday has disappeared thanks to a strong trough approaching the Pacific Northwest. Flow across Colorado has turned southwesterly as a consequence of this. Embedded in this flow is a weak subtropical wave that is helping to spread mid and upper-level clouds across the entire state this morning. This feature is seen …

DayCAST: Sat 09/14/19

September 14, 2019 / Ben Castellani

Another day of sun Today's forecast will be more of the same with sunny skies expected thanks to dry air and a lack of large-scale forcing across Colorado. A relatively zonal pattern has taken hold over the United States with generally westerly flow in the atmosphere for the northern two-thirds of the country. This includes our area. The GFS 500mb height …