Tuesday, May 30, 2023

Goldilocks Temperatures with Thunderstorms

Since about May 12th, we've been locked into what I'll call the large-scale doldrums with relatively weak flow at upper levels and a lack of strong synoptic systems and fronts.  The average 500-mb height analysis for May 12 to May 27 shows the pattern that has predominated quite well with a long-wave trough over the central Pacific, ridge over western North America, and trough over the Canadian maritimes.  

Image source: NOAA/PSL

At the same time, the pattern over Utah and indeed a good chunk of Nevada and the Sierra Nevada has been quite active from a thunderstorm perspective.  The reason for this is the weak short-wave trough that is embedded in the long-wave ridge (indicated by the dashed line above).  Systems have moved through this trough, modulating thunderstorm coverage and intensity, but it has refused to go away.  

As a result, we've seen lightning and thunder on a regular basis in the Salt Lake Valley.  Other than that, there hasn't been much in the way of weather variability, especially for May.  Since May 12 at the Salt Lake City International Airport, minimum temperatures have been at or above 50˚F and maximum temperatures have been at or below 88˚F. 

Source: https://xmacis.rcc-acis.org/

This is pretty much the Goldilocks zone for comfort in the valley, at least at my house where we haven't bothered running the heat or cooling system throughout this period.  If you like to exercise, it's tolerable in the morning and even in the afternoon.  One has just had to dodge the thunderstorms.  

Enjoy.  July will come eventually.  

1 comment:

  1. What are you estimates as to how long this set up will last?

    ReplyDelete