Category: Verification (Page 21 of 53)

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.

Boulder underwhelmingly reported its first snowfall of the season last night, tying 2016 for the latest on record

The saga for our first measurable snowfall of the season is finally over, in Boulder at least. In a rather uninspiring fashion, the city reported its first official snowfall early Wednesday morning before sunrise. Let’s review how it happened, check in how this fits in with climatology, and congratulate the winners of our 2021 First Snow Contest!

Continue reading

A second chance at our first snow: A cold but quick system is gearing up for Thursday

After a lull in the weather on Wednesday, the action picks up quickly again on Thursday with the arrival of a swift-moving but ultimately weak storm system that will bring another round of rain and snow to the Front Range. We discuss which areas are favored this time around to potentially see their first snow of the season and detail when widespread freezing temperatures will arrive.

Continue reading

Summer 2021: Crunching the numbers of yet another hot & mostly dry summer season for Colorado

Meteorological summer begins on June 1st and runs through August 31st. With that end date now having come and gone, the official numbers are in for Summer 2021! Let’s take a look at how Boulder, Denver and Colorado as a whole did this summer in terms of temperatures and precipitation. We also check in on how our state fared compared to the rest of the country. If you like seeing data displayed on graphs and maps, this post is for you!

Continue reading

August 2021 Weather Review: A month headlined by poor air quality and relentless smoke

August 2021 across the Front Range was defined by its poor air quality and tenacious smoky skies which were mostly caused by out-of-state wildfires. Other weather highlights during the month included a rotating thunderstorm which prompted tornado sirens, lots of red smoky sunsets, a sprinkle of summertime snow in the Mountains, and the landfall of Category 4 Hurricane Ida sixteen years to the day after Hurricane Katrina. Here’s a quick and colorful recap of our weather during August and how it relates to climatology.

Continue reading

July 2021 Weather Review: Boulder somehow squeaked out a wet month as the monsoon largely avoided the Denver area

During July 2021, the summer monsoon pattern tended to favor areas further west with persistent high pressure holding over Colorado. Despite this, with a little luck involved, Boulder managed to notch a Top 20 wettest July, while most of the Front Range was very dry. Other weather highlights during the month included persistent smoke from new fires burning in the Pacific Northwest, multiple bouts of triple-digit heat, highly localized flooding in portions of Boulder, and frequent mudslides across the Mountains which has left Interstate 70 indefinitely closed near Glenwood Springs. Here’s a quick and colorful recap of our weather during July and how it relates to climatology.

Continue reading

« Older posts Newer posts »