While he does acknowledging human caused climate change he argues that it is not an existential threat and blames "natural Variability for events like the 2021 PNW heatwave.
I'll admit right up front that much of this is way over my head. I do acknowledge the global climate is warming, but at least for now not at the crisis rate that makes for scary-bad headlines. I see six specific things that you criticized Dr Cliff Mass about.
his assertion that the 2021 heatwave was due to a high-pressure ridge rather than climate change
This blog entry contains too much
data from two published papers in the peer-reviewed, refereed literature he wrote on the subject for me to summarize.
This blog provides updated forecasts and comments on current weather or other topics
cliffmass.blogspot.com
no direct connection between climate Change and Northwest Wildfire risks or declining snow pack
Much of what I read from Dr Mass does not speak in the absolute. Does your use of "direct connection" to mean a 1:1 causation:effect?
Wildfire: Climate Change is a contributor but not a 1:1 absolute causation.
"Most of our wildfires occur at lower to middle elevations that melt out well before the fire season every year. Low snowpack years simply melt out a few days or weeks earlier. So by the mid-summer fire season, the impact is minimal at the elevation at which the fires are occurring."
(This is one thing I believe is not in Dr Mass’ Atmospheric Sciences PHD area of expertise, although he probably talks to Professional Foresters to come to this conclusion.
I wonder if @509 has an opinion about what roles poor forest management vs climate change play as drivers behind wildfires, and which would be the most cost effective-efficient and actionable issue to address NOW?)
Declining Snowpack: He believes low snowpack is
primarily driven by El Niño
And according to NOAA… "El Niño is caused by a weakening of the trade winds over the tropical Pacific Ocean, allowing warm water that is normally pushed westward to "slosh" back eastward toward South America. This buildup of warm water increases ocean surface temperatures, which alters atmospheric circulation, resulting in shifts in global weather patterns, such as increased rain in the eastern Pacific and drought in the west.
Key Drivers of El Niño: Weakening Trade Winds: Normally, trade winds blow from east to west across the tropical Pacific. When these weaken—or sometimes reverse—they allow the accumulated warm water in the West Pacific to shift eastward.
Ocean-Atmosphere Interaction: The warmer water in the eastern Pacific warms the air above it, which causes increased convection and rainfall in that region, further disrupting typical climate patterns. Westerly Wind Bursts: Periods of wind blowing from west to east help transport warm surface water from the Western to the Eastern tropical Pacific.
Oceanic Kelvin Waves: These act as a mechanism to transport warm water beneath the ocean surface from the western Pacific to the eastern Pacific.
El Niño occurs in cycles every 2 to 7 years.
Although a natural phenomenon, research *suggests that human-caused climate change is contributing to more frequent and extreme occurrences."
*Do you believe
suggests means proof of direct 1:1 causation, or a contributor, which is how I interptret Dr Mass' writings.
Oh, and again this isn’t really Dr Mass’ field of expertise but he also believes (probably based on discussions with Forest Management Professionals) that a large snowpack
can make the wildfire season WORSE by providing moisture longer in the spring, promoting MORE vegetation growth creating more fuel to burn. But I have to admit I am in the LOVE THAT SNOWPACK frame of mind because I suspect it helps provide better habitat and resources for fish and wildlife over the summer.
Mass has accused major publications, such as the Seattle Times, of exaggerating climate impacts using unrealistic, aggressive scenarios.
Dr Mass comes to this conclusion through various claims made by the Seattle Times. He provides data for his assertions, with regional climate modeling of which the American Meteorological Society says he is a recognized expert. One egregious example of STs "click bait" journalism style...
"Articles written by the Seattle Times Climate Lab, which receives financial support from climate advocacy groups, are the most concerning, as illustrated by the deceptive, unfactual article published yesterday. The article,
How bad is Washington's summer drought going to get?, starts with a large picture of a major reservoir (Lake Keechelus)-- The March 31, 2026 article picture shows a completely empty lake, and the legend describes a "depleted Lake Keechelus" and that this total lack of water is a "familiar scene." see below…
Totally deceptive and wrong. The truth is that the lake is nearly full, as shown by an image total from a WSDOT cam:

The official measurements of the U.S. Bureau of Reclamation indicate the lake was 95% full on March 30 (it is now 96%):"
This blog provides updated forecasts and comments on current weather or other topics
cliffmass.blogspot.com
Also the Seattle Times is urging Washington state lawmakers to pass legislation providing government grants to local news outlets, citing a "significant state of decline" in the industry. Is it losing readership because of articles like that?
Here's another recent example
This blog provides updated forecasts and comments on current weather or other topics
cliffmass.blogspot.com
And speaking of the Seattle Times it looks like even that
major publishing company, spoke out for the NO on 1631 Campaign.
"The Seattle Times Editorial Board strongly recommend a NO vote on I-1631, characterizing the new $2.3 billion energy proposal as “expensive and unaccountable” and urging voters to reject the measure on their ballots."
(
likely partisan campaign literature link witheld)
2018 Initiative 1631 was the defeated Protect Washington Act that would tax carbon emissions. It was supposed to be a comprehensive, primary policy to fight climate change through a direct fee on large carbon polluters but carried no guarantees on deliverables? But then we got the CCA...

I already outlined that debacle in another thread. It's a bad JOKE, and the joke is on the taxpayers.
Bottom line is Climatologists VS a local Weatherman - who do you chose to believe?
According to the American Meteorological Society, "Cliff Mass is a Professor of Atmospheric Sciences at the University of Washington,
holding a Ph.D. in Atmospheric Sciences from the same institution (1978) and a B.S. in Physics from Cornell University (1974).
He is a renowned expert in "numerical weather prediction" (
uses supercomputers to run complex physical and mathematical models, simulating atmospheric conditions to forecast weather)
, regional climate modeling, and Northwest weather, leading the region's top high-resolution modeling efforts."
“Crisis” another emotional buzz word favorited. Speak/write in concrete objective statements/declarations and I’ll listen.
I think this is a very reasonable viewpoint!