High heat continues to cause problems for the West

WEST – A new high-pressure ridge will settle over the southwestern United States, preparing us more intense heat. This includes the deserts where temperatures could rise into the triple digits again as a result. Heat warnings are in effect Tuesday through Thursday. Much of the San Joaquin/Sacramento Valley is under heat warnings (orange) and extreme heat warnings (pink). Las Vegas and Phoenix are under excessive warnings: This heat is dangerous.

California – Nevada

Both Reno and Redding will be more than 10 degrees above average on Tuesday and Wednesday. While these won’t be as hot as last week, it will still be dangerous for those working outside, so practice heat safety if you must be outside by drinking plenty of water and spending time in the shade. Records are in jeopardy in Redding, Reno, South Lake Tahoe and Bishop, where highs could topple any old records we have.

Of course, the Southern California desert will feel nice and warm. However, temperatures are about 5-10° above normal compared to average. There is the potential to match or break record temperatures in Flagstaff, the LA metro and Las Vegas through Thursday!

The ‘HeatRisk’ map shows many places in the southwest today with ‘great’ heat danger. For reference, last Thursday (June 6) there were “extreme” heat hazard conditions for Las Vegas and the Mojave Desert. The NOAA’s “HeatRisk” tool takes into account how much above-average temperatures and time of year create the “risk” and aims to provide another way of looking at the effects of heat.

Four corners

On the other side of the Four Corners there will be sinking air associated with our high-pressure dome. That sinking air “pushes” down on the surface and heats up quickly. Temperatures will rise to the upper 90s on Tuesday and reach the upper 90s by Wednesday. Grand Junction could even reach 100 degrees on Wednesday, which is 13 degrees above average.

Across the southern four corners, New Mexico and Arizona are also feeling the effects of this lingering high. On Wednesday, “high” to “heat impacts will be felt in far southern New Mexico and around El Paso, Texas, as temperatures reach 110 degrees!

High temperature records are in danger for Flagstaff, El Paso and Albuquerque, along with the mountains of southern Colorado. Take care of each other in this heat!

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