Phoenix Experiences Warmest December on Record for 2nd Consecutive Year

[donsutherland1]

Phoenix experienced its warmest December on record for the second consecutive year. Last year, the December mean surpassed a record that held since 1980. That record was beaten this year with Phoenix experiencing, by far, its warmest average low temperatures on record for December.

 

[Stormchaserchuck1]

Wow, 3 of the 4 warmest December's were in the last 4 years. That kind of thing exceeds climate change, it means that we have a strong pattern in place that is several years ongoing.. 

[donsutherland1]

10 hours ago, Stormchaserchuck1 said:

Wow, 3 of the 4 warmest December's were in the last 4 years. That kind of thing exceeds climate change, it means that we have a strong pattern in place that is several years ongoing.. 

The result is a combination of climate change, the urban heat island effect, and the pattern.

[Typhoon Tip]

12 hours ago, Stormchaserchuck1 said:

Wow, 3 of the 4 warmest December's were in the last 4 years. That kind of thing exceeds climate change, it means that we have a strong pattern in place that is several years ongoing.. 

mm  actually, resonance - which persistence is ... regardless of causality - can also be a feedback/positively reinforced by the CC.  Resonance then gives rise to synergy - outcome more than than sum of moving parts..etc.  "Exceeding" is still causally linked if that's the case. 

Longer diatribe:  CC is speeding up the basal velocities of global gradient latitudes.  This is so because ... even though the polar regions are warming faster than the tropics during the last 20 .. 30 years, the cooling seasons still impose a net +d(G).   

In practical terms, that means the cold side of the jet stream latitudes are more extreme than the warm sides - more so comparing to prior climate generations. That increases the thermal wind vector, which is balanced by the Coriolis parameter, and viola!  there is higher wind velocities in the gradient latitudes comparing 50 years ago.  

This is measured/empirically shown.   Not only by atmospheric physics ..but in every day usage.  Ex, more air-land speed records have been set ( airline traffic) when traveling west to east...etc during these recent decades.    

This increased velocity is going to alter the pattern footprints, because velocity of the medium is in the wave physical equations.  It's just physically avoidable.  

Predicting precisely how is a HUGE problem.    For one, in the summers ... there are these resonances that set up and create these synergistic heat domes and regions end up blazing hotter than the modeling suggested they really would- just one example.   Much to the counter-intuitive bemusement of the common person, these particularly deep, gelid visits by SPVs to mid latitudes in winters are actually causally linked to this just the same.  It's not just heat in the summers...   Not only that, it's effecting the transition seasons, too, with larger than normal variance in in temperature anomalies during seasons that inherently come with bigger transition differentials ('transition seasons')

CC does change the circulation behavior at planetary scales.  This should be more observable in the winter hemispheres, but ... there's room for science in the matter.  

It's probably era-    Transitional during this era of CC.  If CC were to continue unabated ... speculation would raise polar realms enough to where the distant future states relax the ambient gradients; the basal velocities slow.  What, 70 ..120 years? 

Or sooner.   How may 2023 burst in global temperatures are in the future, and when?   The fact that 2023 happened with     0    leading predictions, is pretty damming to the climate forecast community.  I mean ... not casting doubt or blame or shade for the their efforts, but the bottom line is ... no one saw that coming.  And, that pertinently rattles confidences and makes one wonder if these are going to happen again. If so ...the future CC curve is not linear.   Which is kind of duh in a philosophical approach anyway, because the last 20 .. 30 years have graphically shown that this hasn't been linear, anyway.   It comes down to acceleration - what is that rate going to be.  But I'm digressing...

 

[WolfStock1]

Question for those in the know:

Since urban heat island is a thing - has there been a concerted effort to place sensors specifically in non-urban areas?   If not - it seems like there should be.

Of course some areas could transition from non-urban to urban over the course of decades, but such an effort/project would presumably account for this - putting sensors in areas that are protected and would never becomes urban (national parks, wildlife refuges, etc.) and/or just remove any sensors that have become urbanized from the data sets.

As it is - it seems like threads like this one - "XXX city sees record warmth", are of questionable veracity; to me what would be more meaningful would be "Badlands NP sees record warmth" or the like.   (at first I started using Yellowstone as example but then realized it has its own non-urban heat island)

 

[tacoman25]

Looks like 1980 remains the warmest December for Flagstaff. Lot of pattern similarities this winter to that one so far.