GroundTruth

- GroundTruth
  
  For more than 20 years Earth Networks has operated the world’s largest and most comprehensive weather observation, lightning detection, and climate networks.
  
  We are now leveraging our big data smarts to deliver on the promise of IoT. By integrating our hyper-local weather data with Smart Home connected devices we are delievering predictive energy efficiency insight to homeowners and Utility companies.
- GroundTruth
- WeatherBug
  - Consumer
  - Corporate
- WeatherBug
  - Consumer
  - Corporate

Unusually hot temperatures and a high fire danger will remain a concern across southern California until the end of the work week. Thankfully, Friday won’t be punctuated with record heat and the mercury will return closer to typical late-October standards next weekend.

Scorching temperatures soaring well into the 90s and even a few spots touching the century mark along the bustling Interstate 5 corridor from Los Angeles to San Diego isn’t typical for October 20. Buoyed by a large upper-level high pressure parked across the Southwest and diminishing Santa Ana winds, or gusty winds being funneled between mountain passes in southern California, will squeeze in one last day of unseasonably hot weather on Friday for the same Interstate 5 locations.

Although not putting ink in the record books like on Thursday at Los Angeles International airport when the mercury eclipsed its old record of 95 degrees set last in 1999, the dial on the thermometer will climb into the lower and middle 90s along the Interstate 5 corridor across southern California on Friday. These impressive temperatures will fall from 15 to 20 degrees above normal today to 10 to 15 degrees above normal on Friday.

The Santa Ana winds being squeezed through mountain passes in southern California created a high fire danger Thursday. However, the wind dangers, outside of the mountains of Los Angeles and Ventura County where a Red Flag Warning persists, have diminished today. A red flag warning is issued when conditions are ideal for rapid spreading of wildfires.

Thankfully, the weather pattern providing the burst of heat will be squeezed away this weekend, as a series of disturbances slide onto the Pacific Northwest and British Columbia coasts. Not only will this squish the upper-level high pressure system across the Desert Southwest, it will allow the mercury to return closer to seasonal levels and will bring higher humidity to reduce or end the fire danger also.

- Live Radar
- - Weather Details
- Forecast
  
  }
- Featured Videos
- Air Quality

Unusual Heat Sticks Around for Southern Cal