High pressure building over the area continues to bring significant heat to SW California. The heat will peak on Friday and Saturday. Highs from the coastal valleys to the deserts are expected to be between 96 to 116 degrees by Friday, resulting in a high risk of heat-related illnesses. High temperatures across the coastal plain will be lower, but still climbing into the 82 to 92 degree range. Overnight low temperatures will also remain quite warm, exacerbating the excessive heat conditions. There will also be elevated to Red Flag fire weather conditions into he weekend, due to the hot temperatures, low relative humidity and breezy winds. Rapid fire spread will be likely any new fire starts. Use extra caution in the heat, and with any source of spark or flame!