State of the Atmosphere
The State of the Atmosphere: Sunday, May 17th, 2020
In the end, some good precipitation totals for many locations across Northeast and East-Central Colorado. Of course that wasn't the case for everyone, but for those areas (especially east of the urban corridor) that managed rain, a welcome couple of days to be sure. Denver saw its best storms Friday evening, aligning with our highest probabilities as well. The main storms that moved through the metro area produced about a half inch to 3/4" of rain –– pretty well modeled, actually. Of course, n
State of the Atmosphere
The State of the Atmosphere: Sunday, May 10, 2020
After a weekend on the chilly side, including even some spotty frost issues this morning, the coming week looks to feature more warmer days than cool once we get beyond Monday. The average high for this time of year in Denver has climbed to 71°F, and the average low now comfortably in the mid-40s at 44°F. You'll see in the image below most forecast temperatures are progged to run above average through Thursday, with the exception of tonight and Monday. Lows overnight tonight shouldn't dip quit
State of the Atmosphere
The State of the Atmosphere: Sunday, April 26th, 2020
After the record cold and plentiful snow we saw to start the month across much of the urban corridor and Front Range, the last days of April will be summer-like across the state as very warm weather will take over for much of this week. The official month-to-date snowfall total for Denver is just 3.7", below the long term average of 8.9" for April. Still, this is hardly representative of what we've seen in other Front Range cities this month (and really much of Denver proper itself), and did ma
State of the Atmosphere
The State of the Atmosphere: Sunday, April 5th, 2020
We've found ourselves in a bit of a pattern over the last few weeks, one that is likely continue for the week ahead as well. That is, warm and quiet weather to start the work week, with a cooler and more active weather pattern to end the week. As we move further and further into the spring, those warm days become warmer and warmer with each passing week , but still cold and snow lurks. In fact,
State of the Atmosphere
The State of the Atmosphere: Sunday, March 29th, 2020
Two chances for some precipitation this week, one to end March and the other to start April. Speaking of the end of March, let's see how the month will end in terms of precipitation and temperature. The last chance of March precipitation likely won't amount to enough to change that anomaly map very much, neither will the temperature map as we actually warm a bit more over the next couple days. Sunday into Monday is a chance for some rain and snow statewide, however it won't amount to much, if
State of the Atmosphere
The State of the Atmosphere: Monday, March 23rd, 2020
A system will approach for the end of the week, but at this time it doesn't appear to be as robust or as wet as the system last week. Let's do a quick check on precipitation for the month. Here is the month to date precipitation anomaly: So far, we see the highest surplus is over the Northern Front Range and pockets of the mountains and Western Slope. Southern Colorado is in a deficit for the month. Still, with last week's wet storm, a great to see the above average moisture for many given the
State of the Atmosphere
The State of the Atmosphere: Sunday, March 15, 2020
Persistent fog and drizzle has clear most of Eastern Colorado this evening, though the far Eastern Plains and Western Kansas will see areas of dense fog through tonight and into Monday morning. Along the Front Range a mild Monday is on tap. Highs will be near 60°F (perhaps into the low 60s for some), with mostly sunny skies for most of the day along the Front Range. By Monday evening and overnight we see a bit of a disturbance move through and bring areas of patchy fog and light rain. It shoul
State of the Atmosphere
The State of the Atmosphere: Sunday, March 8th, 2020
The warmth that has come with March will continue for much of the workweek, and as far as moisture, we are watching for the potential for some to arrive late in the week. For the first week of March, temperatures were warmer than average other than on the first. The first is also the only recorded precipitation for the week, and that was only 0.03" at Denver International Airport where official records are kept. The warmer and drier pattern of March is clearly different than what the area had
State of the Atmosphere
The State of the Atmosphere: Sunday, February 16th, 2020
As we discussed on Friday , our next change in the weather across Eastern Colorado arrives tomorrow. While some of the more bullish snowfall outputs we saw some models producing last week look much less likely today, we do expect to see pockets of snow across Eastern Colorado over the coming days. First Monday afternoon and overnight into Tuesday, then again possibly on Wednesday. For today and tonight t
State of the Atmosphere
The State of the Atmosphere: Sunday, February 9th, 2020
Well, someone must have gotten the word that readers of 5280 weren't happy about the lack of snow in December and January. The start of February has been a completely different story, and there's more in the forecast for this coming week. Today's snow will gradually come to an end through the evening hours, if it hasn't already stopped at your place. We managed another 2.75" today, bringing our month-to-date total to 19.75" here in Denver West. Denver International Airport has picked up 8.8" o
State of the Atmosphere
The State of the Atmosphere: Sunday, January 26th, 2020
Four weeks ago had you told me we'd be closing in on a snowless, precipitation-less January I probably would have applauded your pessimism but would have tried to assure you I thought we'd steal a storm during the latter half of the month. This was my expectation, and while at times we've seen fantasy storms show up in the NWP models , they've been quick to evaporate from any reality. The reality is, this dry
State of the Atmosphere
The State of the Atmosphere: Sunday, January 19th, 2020
I could almost just copy and paste last week's SOTA when looking at the week ahead today. This coming week briefly looked like it would deliver some more interesting weather as of mid last week, but today it looks much like the ongoing pattern we've seen since December. Our mountains should see some snow, but for the plains... the chances continue to decrease with each data run. On Weather5280 Insider: December 2019 signaled a dry January and a nearly average February [https://www.weather5280.
State of the Atmosphere
The State of the Atmosphere: Monday, January 13th, 2020
In our Insider outlook for the month I offered some "optimism" for snow lovers in what generally was a bleak outlook for the month on the snow front east of the mountains. My optimism is fading as the month progresses and the overall pattern proves hard to kick. It was always going to be a "small needle to thread" to get a storm across the plains this month. January isn't typically a big snow month for the plains as the pattern dictates a more favorable set for the mountains, and
State of the Atmosphere
The State of the Atmosphere: Sunday, January 5th, 2020
Welcome to the 2020s! January is likely to take on the weather pattern that established itself in December. It's been well over a month since the city received more than three inches of snow; most of December was dry until the holiday snow event. January, at present and looking at the longer-range forecasts, looks to follow suit with little snow in the outlook, however, there is a chance later this week. Although the snow season to date is ahead of average, look at the snow received since Dec
State of the Atmosphere
The State of the Atmosphere: Sunday, December 29th, 2019
Well, thank goodness for yesterday's snow. Denver came close to a snow-free December, something that hasn't happened in the city in over 100 years. Instead, Denver International Airport picked up 2.8" of snow, bringing the season-to-date total to 29.0" for Denver. The average to end December is 22.5", so our above average snow season continues, even after a mostly lackluster December. Our station picked up 2.75" of snow on Saturday,
State of the Atmosphere
The State of the Atmosphere: Sunday, December 22nd, 2019
For snow lovers, a disappointing outlook this Christmas week as no snow is expected across Eastern Colorado before the holiday. For travelers, a collective sigh of relief –– especially after many Thanksgiving holiday plans were thrown up in the air thanks to heavy snowfall along the Front Range just a few short weeks ago. Instead of cold and snow to kick off the official start to winte
State of the Atmosphere
The State of the Atmosphere: Sunday, December 1, 2019
Our latest weather maker is finally getting east of Colorado today, as the gusty winds that have wreaked havoc across Northern Colorado finally start to calm. The morning GFS shows those strongest winds over the eastern plains Sunday morning. They will gradually work their way east as the system moves into the Great Lakes Sunday night. A look at the national hazard map shows high wind advisories in place across the Central Plains, with still some lingering alerts for areas just north of the
State of the Atmosphere
The State of the Atmosphere: Sunday, November 17th, 2019
As forecast, the coldest temperatures relative to average have shifted into the Eastern United States through the first half of November. For Colorado we see the typical east/west split, with coldest anomalies across the Eastern Plains, and a warmer-than-average start to the month for the high country: This pattern was well telegraphed . As we head into the latter half of the month and December we start to see at least periods of more active weather setting u
State of the Atmosphere
The State of the Atmosphere: Sunday, October 20, 2019
Fall-like conditions have returned and will remain this week with the potential for snowfall by Wednesday night. The past week featured a pair of 80s for high temperatures (likely the last of the year, as we wrote previously ) before the cool off through this weekend. Outside of wind –– and related fire danger, there was little impact with the colder pattern change for the Front Range. The mou
State of the Atmosphere
The State of the Atmosphere: Sunday, October 13, 2019
The upcoming work week looks much, much quieter than the weather rollercoaster we experienced last week. Temperatures will be quite mild each afternoon, with Tuesday currently looking like the coolest day of the week across Northeast Colorado. Here's a look at the 500mb pattern last Thursday when we see the snow and cold move through the region: Today that system has moved into the Great Lakes, and we see between it and a trailing (weaker)
Arctic Cold
The State of the Atmosphere: Sunday, October 6th, 2019
Well... well... wellllll.......... This week is looking to be one of the more interesting weather weeks we've had around here in a long, long time. As we discussed on Weather5820 Insider last week , much of Eastern Colorado stands to see its first hard freeze of the season by the latter half of the week, as well as the first flakes of the season for many as well. The biggest story of this event looks to be the rather dramatic
State of the Atmosphere
The State of the Atmosphere: Sunday, September 29th, 2019
We continue to track some of the chilliest air of the season due to arrive late Monday into Tuesday across Northeast Colorado. It won't be an epic cold front by early October standards, but will finally serve as a reminder as to the (eventual) change of seasons across the region. But first, we wrap up a very warm September with more warm and dry weather across the state. As we covered last week [/blog/2019/09/22/the-state-of-the-atmosp
State of the Atmosphere
The State of the Atmosphere: Sunday, September 22, 2019
We've managed to piece together two very nice (and very climatologically average) days here this weekend in what has otherwise been a very warm September across Colorado. At our station on Denver's west side we've climbed into the mid to upper 60s here as of early afternoon, with midday temperatures across eastern Colorado all very pleasant indeed –– perhaps even on the chilly side(!) for some mountain locations: Month to date it's been a different story. Month to date the city is running 6.
State of the Atmosphere
The State of the Atmosphere: Sunday, September 15th, 2019
Seasonal changes are in the offing for the week ahead, with a slow-moving storm system to move through the Rockies. Let's take a look at the development of the system in this animation which runs from Sunday (today) to Sunday to show the middle atmosphere. What you'll see is a closed low (circles) form over the Western US and the Central Rockies. What this storm system does is break down the persistent ridge across the country which has kept temperatures warmer than average with drier than a
State of the Atmosphere
The State of the Atmosphere: Sunday, September 8, 2019
Latest observations from DIA show Denver's high topping out at 79°F today, a few degrees below the average of 82°F for the date. On the west side we did even better, just 72°F for a high after an overnight low of 50°F. While not exactly cold for September, a refreshing break from the early month heat we experienced last week. Not only did Denver set a new record high for the month of September last week, it managed best that previous