Category: Verification (Page 5 of 45)

These posts take a look back at recent weather events, like snow storms or severe weather outbreaks, and evaluate how the forecast played out. We evaluate how well the models predicted what actually occurred, and offer insight into what can be learned and applied moving forward.

Front Range Snowfall Totals: December 8-9, 2023

December 9, 2023 / BoulderCAST Team

Front Range Snowfall Totals: December 2-4, 2023

December 5, 2023 / Josh Aikins

Front Range Snowfall Totals: November 8-9, 2023

November 9, 2023 / BoulderCAST Team

October 2023 Graphical Weather Review: Bone dry except for the first snowstorm of the season near month’s end

November 1, 2023 / BoulderCAST Team

October 2023 was an overall warm and very dry month in Boulder, but the days leading up to Halloween turned markedly colder with our first snowfall of the season arriving just a tad later than usual, and it was a sizable one for many! Despite the dry 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 October and how it relates to climatology.

This Week in Colorado Weather: October 30, 2023

October 30, 2023 / Ben Castellani

Our first snowfall of the season is now behind us, but the bitter cold temperatures that accompanied it are still sticking around. It will take several more days before we have anything resembling normal temperatures across the Front Range. Overall the week ahead will be quiet and mostly sunny with little to be concerned about weather-wise. The upcoming weekend looks rather nice as well. Read on for all the details.

Forecast Update: Our first snow of the season is winding down, but the bitter cold will linger…

October 29, 2023 / Ben Castellani

The highly anticipated first snowfall of the season is now out of the way for everyone in the Front Range with a widespread blanket of snow having dumped on the area Saturday evening and overnight. Light snow continues to fall Sunday morning, but most of the accumulation is over and done with. Though things didn’t go perfectly as planned, snowfall amounts came in about as expected across the Boulder-Denver Metro area with a range of 3 to 12″. Let’s take a look at the totals and near-term forecast. We also announce the (many) winners of our 2023 First Snowfall Contest.

El Niño is finally back and it’s a strong one! Here’s what it means for Colorado this winter

October 19, 2023 / Ben Castellani

After enduring three consecutive La Niña winters, El Niño has taken over the globe once again intensifying in unusually rapid fashion. As of writing in mid-October, a strong El Niño is underway with impacts that will stretch globally in the months to come. We take a look at the current state of ENSO and what to expect from Mother Nature this winter across the Front Range lower elevations and Mountains.

The 2013 Boulder Flood: Ten years and three billion dollars later

September 12, 2023 / Ben Castellani

Ten years ago this week, torrential rains fell across the Front Range, triggering one of the worst floods in Colorado’s short recorded history, accompanied by a staggering repair bill now approaching $3 billion. With Boulder County at the epicenter of the disaster, the road to recovery has been long and arduous, and still continues today. We take a look back at this historic event, explain how it happened, and provide an update on related analysis performed since.