Author: Ben Castellani (Page 121 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 Colorado weather: July 5, 2022

July 5, 2022 /

We hope you had a great Fourth! The Southwest monsoon remains active through the middle part of the week with good chances for rain in Boulder and Denver, especially Tuesday and Wednesday. Unfortunately, the pattern shifts late in the week suppressing the flow of monsoon moisture into Colorado. This will cause drying for us, but also a spike into triple-digit temperatures for the weekend. Read on for our full outlook of the week and weekend ahead.

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BoulderCAST Daily – Mon 07/04/22 | Very warm with widely scattered thunderstorms ending before sunset

July 4, 2022 /

⦁❶⦁ A favorable monsoonal flow continues today with another chance of showers and thunderstorms across the area, though storms will be less intense and less widespread

⦁❷⦁ Best chance of storms between 2PM and 8PM with things shifting east before sunset — little to no impacts expected to any fireworks displays

⦁❸⦁ High temperatures will be in the lower to middle 90s

⦁❹⦁ Warm weather with decent monsoon moisture sticks around for a few more days before changes come later this week

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Colorado Weekend Weather Outlook: June 30, 2022

June 30, 2022 /

Monsoon season has kicked into high gear with an excellent chance of rain showers and storms developing through the day today! This will be followed up by continued daily chances for storms through the long holiday weekend ahead. The plume of monsoon moisture originating in the subtropics can be seen in the GOES-East water vapor animation below. Note the narrow …

BoulderCAST Daily – Wed 06/29/22 | The hottest day of the week with decent odds for storms late this evening

June 29, 2022 /

Today will be the hottest day of the week under peak warming as the ridge axis passes east of the area during the early morning hours. By midday, the ridge axis will be across Kansas and Nebraska (shown below) with hot southwesterly flow streaming into Colorado. That weak low pressure moving along the Canadian Border will eventually force a cold …

Summer 2022 Outlook: Monsoon season has begun early, but La Niña sticking around is worrisome for Colorado

June 29, 2022 /

The arrival of the North American summer monsoon varies substantially from year to year, depending greatly on the weather patterns of Mexico, the southeast USA, and the tropical eastern Pacific Ocean. We don’t have to wonder anymore — the monsoon has already commenced in the last few days, about two weeks ahead of schedule. Hooray! We discuss the current state of the monsoon, what’s happening with that pesky La Niña, and what to expect in the coming months across Front Range Colorado.

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BoulderCAST Daily – Tue 06/28/22 | A triumphant return to the 90s

June 28, 2022 /

Ashortwave ridge will be drifting across the Rocky Mountains today bringing largely quiet weather to the Front Range. The 500mb height anomaly forecast map from the GFS model below shows that the center of the high pressure is located in northern Arizona with an axis extending northward into western Colorado. Elsewhere, a trough is coming ashore near Seattle --- this …

BoulderCAST Daily – Sun 06/26/22 | Staying cool with a chance of thundershowers

June 26, 2022 /

Another cool and marginally showery day is expected across the Front Range as weak upslope flow continues. Similar to yesterday, though, lots of cloud cover and cool temperatures across the lower elevations will keep things fairly stable preventing widespread  rains. The best chance of storms again will be across the Mountains, Foothills, and Palmer Divide which will see some destabilizing …

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