How to tell when it’s hot
This heat and dry conditions are really getting to the large trees. Many have deep root systems but they have taken most of the water out of the soil and now the subsoil.
It will take some time to get water back in the subsoil, and in the meantime many of the large limbs have gotten brittle, and many are breaking off near the trunks. I had three large limbs break off on a giant sweet gum in my front yard. I am starting a four-hour soaking every day under the trees. I now have moistures in the soils 4 feet deep. Now I must try not to get the topsoil too wet. Some yards have soaked the grass to the place it is mud pies.