Author: Ben Castellani (Page 271 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.

This week in weather: October 23, 2017

October 23, 2017 / Ben Castellani

The main story for the week ahead will be the roller-coaster ride of temperatures! They will soar to near 80 degrees by midweek, but then tumble to bring the chance of snow to the region by Thursday. Read on for our complete outlook of the upcoming week.

DayCAST: Thu 10/19/17

October 19, 2017 / Ben Castellani

Calm and unseasonably warm weather continues.... The one change for today is that a weak piece of energy embedded in the southwest flow will pass across Colorado (see the red "L" below). This will produce lots of mid and high-level clouds, especially during the afternoon and evening. The airmass largely remains unchanged with temperatures peaking into the middle 70's. This is a …

DayCAST: Wed 10/18/17

October 18, 2017 / Ben Castellani

One reason for the recent stretch of quiet and warm weather in Colorado is that the position of jet stream is FAR to our north in Canada. Weather systems tend to form near the jet stream….along the baroclinic boundary between warm and cold air masses. Without the jet, our pattern has been quiet this week and this will continue through Friday evening.

250 mb wind map for this afternoon showing the position of the jet stream (lime green).

For today, expect mid-level clouds to dominate the sky in the morning as a swath of elevated moisture interacts with the terrain. However, drier air aloft moves in by lunch which will allow for sunshine this afternoon and evening. High temperatures will be in the upper 70’s today!

After 70’s tomorrow and possibly low 80’s on Friday, a dry cold front sweeps through Friday night. Temperatures will tumble about 20 degrees for Saturday, but at least that sun won’t stop shining…

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DayCAST: Tue 10/17/17

October 17, 2017 / Ben Castellani

We're smack in the middle of a lengthy stretch of quiet weather in Colorado right now. We warned you about this in a DayCAST one week ago. Under high pressure, mostly sunny skies, and warm (but tame) downslope, temperatures will push into the upper 70's and lower 80's this afternoon across the Denver Metro area. Our average highs this time of …

DayCAST: Thu 10/12/17

October 12, 2017 / Ben Castellani

Remember that trough in the Northwest that we mentioned yesterday? The 800 mb temperature map below on the left shows this well-defined trough. Further south, warm southwesterly flow continues across Colorado today. Look for mostly sunny skies today with temperatures SKY-ROCKETING into the upper 70's. A few locations could even hit 80 degrees across the Metro area. Sadly, today will …

DayCAST: Wed 10/11/17

October 11, 2017 / Ben Castellani

Despite there being a trough over the Pacific Northwest right now, very dry air is in place so it's hardly creating any clouds. We'll remain within a warm and dry airmass through the weekend. For today, expect mostly sunny skies with just a few high clouds around. Temperatures should rebound back to near 70 degrees. Any remaining snow across the lower …

This week in weather: October 10, 2017

October 10, 2017 / Ben Castellani

We hope you enjoyed the Columbus Day holiday! In this special weekly outlook, we provide a brief recap of yesterday’s snowstorm, announce the winners of our 2017 First Snow Contest, and detail the warm and sunny weather about to make a rebellious stand across Colorado.