The State of the Atmosphere: Sunday, June 20th, 2021

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Happy Father's Day! It'll be cooling off today and tomorrow with some scattered rain chances, too.

For today, Colorado will be impacted by the first to two cold fronts.

The coolest change will be across northern Colorado, and that's where - potentially - we will see the strongest thunderstorms too. More on that in a moment.

The second cold front will be pushing into northeastern Colorado Monday.

Let's look at temperatures across Colorado for Sunday and Monday.

For Denver, we have gone from record heat down to the 70s in a matter of days. Colorado Springs will likely stay in the 60s for highs Monday! Quite a change to start this week versus last week.

Going for three 100-degree days in a row in Denver
Tuesday and Wednesday both hit 100-degree heat and the city will make a run at it again Thursday. Tuesday hit a high of 101 []. Wednesday hit 100. Both of those record setting highs. Today could be another record and the h…

There will be areas of rain and thunder too. An animation of today's possible rain is:

The rain that develops late Sunday spreads across eastern Colorado from Sunday evening through Monday morning. Don't be shocked to wake up early Monday morning to the sound of thunder.

The total amount of this rainfall will be hit and miss quarter to one-half inches, favoring the Palmer Divide and Cheyenne Ridge.

Let's look even more specifically at the hourly timeline for Denver (top) and Colorado Springs (bottom).

Colorado Springs

From the cool start to the week, temperatures quickly warm again starting Tuesday. Warmer than normal conditions will be here for the mid-week.

For Fort Collins:

The temperatures cool a bit headed into next weekend as we may see higher rain chances for that time...we shall see.

Speaking of rain chances, we've previously discussed the monsoon outlook for this year.

Monsoon or “nonsoon” this summer?
I want to immediately couch this post as a post that contains quite a bit of uncertainty. However, it’s time to take a stab at a forecast that involves whether or not we monsoon this summer. The map below adeptly explains what are referring to , when we talk about the monsoon. The past couple of su…

We are also watching what may occur with the "Atlantic ENSO" region as an indication for long-term moisture or drought.

Ever Hear About The Atlantic El Niño?
Yep, it’s true... The Atlantic Ocean has its own version of El Niño. It isn’t quite the global influencer that the bigger Pacific El Niño is... However, it has been researched enough to provide somewhat of “a tell” about what phase the Pacific ENSO may develop into. First off, where does the Atlanti…

For this week, however, plan on a couple of cool days with a few of us catching rain before we 'feel the burn' midweek.