Author: BoulderCAST Team (Page 5 of 39)

This post had major contributions from at least two members of our team. The more meteorologists the better, right?

Arctic Blast Sunday PM Update: Widespread snow & even colder temperatures move in Monday

Just when you might have thought things were turning warmer, a secondary Arctic front and more snow will arrive to the Front Range on Monday. Additional snow accumulations and slick travel are expected during the day with the coldest temperatures we’ve seen yet developing Monday night. Let’s take a look at the latest as the ongoing Arctic blast delivers one final blow on MLK Day!

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Arctic air is inbound! Plan now for a prolonged period of dangerous cold in the Front Range starting Friday evening!

The most significant Arctic outbreak for the Front Range since 2022 is brewing! The initial cold front will blast through Friday early evening ushering in sub-zero wind chills which will persist all the way into at least Tuesday morning. While the extreme cold is all but certain at this point, the snowfall potential is a bit trickier of a forecast as there will be three separate chances for snow mixed into the polar plunge. However, the Mountains will be getting absolutely showered in powder. Let’s take a look at bitter cold and snowy forecast heading into the MLK holiday weekend.

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December 2023 Graphical Weather Review: The most abnormally warm we’ve been since the lead up to the Marshall Fire

December 2023 was yet another warm month in Boulder, the same fate which has befallen four out of the last five months. Despite the lack of appreciable snow events, precipitation ended just a hair above normal for the month since December is typically one of our driest months of the year. Here’s a quick and colorful graphical recap of our weather during December and how it relates to climatology.

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Holiday Snow Update: Rain transitions to snow Saturday evening, most accumulation over by Christmas Eve morning

Winter weather is on-track to arrive into the Front Range Saturday evening into Sunday just in time to give most of us a white Christmas! Two vastly different storm systems will be moving in from opposite directions later in the day Saturday with widespread rain changing to snow across the Boulder and Denver area. While we still have some lingering concerns regarding temperatures and exactly when rain will switch-over to snow, our forecast confidence has grown over the last few days. In this final forecast update, we discuss the storm’s timeline, how much snow will accumulate across the area, the probability the snow sticks around into Christmas Day, and how it will impact holiday travel the next few days. We’ve even got another chance of snow coming the day after Christmas. Whew! Read on for all the details.

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Winter Weather Update: Forecast uncertainty still abounds heading into the holiday weekend, but things are starting to come into focus

We’ve got a few more mild days ahead to end the work week, but as promised, winter will return for the holiday weekend in what is shaping up to be a challenging forecast indeed. We are finally starting to see better agreement in the various weather models, but things are still far from certain. Our weather will begin to trend downhill on Saturday with cooler temperatures and a chance of rain showers. Saturday night rain will change to snow with snow accumulation likely for all heading into Christmas Eve. Exact snowfall amounts and the timing of everything are still being worked out, but here’s our latest thoughts on the approaching holiday winter storm.

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November 2023 Graphical Weather Review: A little Turkey Day snow, but otherwise exceptionally warm & dry

November 2023 was yet another warm and dry month in Boulder with just one medium-sized snowfall event to speak of —- that occurred the day after Thanksgiving. Despite the relatively parched last few months, officially drought has not yet returned to the Front Range. Here’s a quick and colorful graphical recap of our weather during November and how it relates to climatology.

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