Another low pressure system anchored over the Pacific Northwest will keep desert temperatures slightly below average through Thursday. Highs will be in the 90's to near 100. Lows in the 60's and low 70s. Typical windy conditions may occur at times, strongest along the I-10 corridor from Whitewater to Indio.
Starting Friday, a sprawling high pressure system will build over the Desert Southwest, continuing into at least Tuesday of the following week. This will cause a HEAT WAVE over the deserts. The strength of this high pressure is expected to be unusually intense - and as a result, will likely produce record high temperatures for Sunday and Monday - possibly ranking the heat wave to be among the hottest top 10 on record for some deserts. The big question at this point, is exactly which areas will see the most intense heat?
There are some slight differences among the computer models. Some place the strongest high pressure over parts of Arizona, which could cause temps to reach or exceed 120 degrees there. If the strong high pressure extends just a bit further west over our area, it is possible temperatures of that magnitude could be felt throughout the Coachella Valley.
Since it is a bit too early to know for sure, we all should prepare for temperatures to climb to at least the 110-118 degree range for Sunday-Tuesday... and there remains a small chance that temperatures as high as 118-124 degrees could occur in some areas of the lower deserts between Palm Springs and Phoenix, especially Sunday and Monday. Temps this high can be dangerous.
The National Weather Service created the map below, showing the areas in magenta as having the highest probability of record breaking temperatures for next Monday.
Normal high/low temps for Palm Springs currently are 101/71.
This heat wave could exceed the intensity of the one in early June, and will likely last a few days longer. Next week appears to hold temperatures near 110 degrees into at least next Wednesday. It is too soon to know what will happen later next week, but historically, major heat waves typically break after several days.
It is summer, and it is the desert, so heat is normal here. However temperatures over 120 degrees don't happen all that often.
GIVE THE HEAT THE RESPECT IT DESERVES
- Limit outdoor activities
- Eliminate pet walking on hot pavement between 10am - 7pm if possible
- Consider cancelling strenuous outdoor activities between 10am - 7pm
- Drink plenty of fluids - humans and pets alike
Good news is the humidity levels appear to remain bone dry for the next 7 days while the high pressure should choke off any monsoonal moisture from the southeast.
I'll provide another update later this week.