Author: Ben Castellani (Page 261 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.

Premium Storm Update Ensembles are out to lunch for tonight’s snow!

February 5, 2018 / Ben Castellani

The operational GFS model has consistently forecast little to no snowfall for tonight's storm for the lower elevations, including Boulder and Denver... On the other hand, the GFS ensemble members have been telling a much snowier story for several days now. The four-panel plot below shows snowfall plumes for Denver from the GEFS ensemble runs from yesterday morning (top left), last evening …

This week in weather: February 5, 2018

February 5, 2018 / Ben Castellani

Premium Storm Update (Mon Feb 5 at 1:30 PM) Ensembles are out to lunch for tonight’s snow! We provide a brief storm update along with a discussion on why the ensemble model runs are worthless for this particular wintry event. READ NOW

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This week will see rain changing to snow Monday evening. We have included our official snowfall forecast map. We’ll then see a significant warming trend through the rest of the week as a lee trough develops, with the potential for more snowfall during the upcoming weekend.

Arctic airmass clears by afternoon, more rain/snow tomorrow

February 4, 2018 / Ben Castellani

Yet another shallow Arctic front has backed into the Metro area this morning, with light snow and freezing drizzle now falling across the region. We detail the weather for the next 48 hours, including the chance of more wintry weather Monday night.

CONTEST: Predict Our Snowfall for the Next Three Months!

February 4, 2018 / Ben Castellani

*Contest entries are now closed*

What is the outlook for snowfall in the next three months? You tell us! We provide a brief overview of the climatology, long-range model forecasts, and La Niña for the next three calendar months. We then ask for YOUR long-range forecast for snowfall in Boulder. Prizes include Amazon gift cards, BoulderCAST T-Shirts, and Premium subscriptions. Enter now!

DayCAST: Thu 02/01/18

February 1, 2018 / Ben Castellani

February begins on a cold and wintry note! Read our complete forecast.

DayCAST: Wed 01/31/18

January 31, 2018 / Ben Castellani

Winds have shifted to northeasterly this morning as a shallow cold front moved through just a few hours ago. Models show this dry front draped across the Denver Metro area through the day. As a result, temperatures will be much cooler this afternoon compared to yesterday, likely topping out near 50 degrees for the Plains and Foothills alike. Today's forecast …

DayCAST: Tue 01/30/18

January 30, 2018 / Ben Castellani

WARMTH The 500 mb ridge axis that brought nice weather to the region yesterday has now shifted east of Colorado, with strong westerly downslope flow taking over across the region. Maximum temperatures today will be in the 60's, though thick wave clouds may limit warming this afternoon. Due to the cloud cover, we aren't expecting any record highs today. Still, …