After a slightly cooler weekend, a major heat spell will engulf California as the subtropical high rebuilds once again and a heat wave takes over the southern half of the state. High temps will be near record levels by mid week this week in Mammoth and hold through the holiday weekend (Low to mid 80s).

For Southern CA,  desert heat moves into the valleys by mid week with highs between 100 and 110 later this week and into the next.   Heat may break between Labor Day and the following weekend with an unusual thunderstorm pattern for Southern CA  north to the Sierra as Monsoon moisture combines with easterly wave and tropical storm.

Lows at night in many areas will be in the 80s.  GFS has very high precipitable water levels along with high dew points by the middle of week 2 for Southern Ca as tropical systems both in the Gulf of Mexico and Eastern Pac give a one-two punch. Worth noting is that the ECMWF is not nearly as aggressive with that pattern later week 2 but hotter this week. As always, time will tell.  For the high country; The Labor Day holiday weekend will be more mid to late July like temperature wise, with highs running 10 to 20 degrees above normal.

Labor Day holiday weekend in So Cal could be a scorcher.

Plan ahead for near or record record heat.


Dr Howard and the Dweeb……………………:-)