Santa Ana winds that began late Wednesday have already led to a much warmer than normal start to Thursday as clear and dry skies persist across San Diego County. Earlier this week, a Frost Advisory was enacted as overnight lows dropped below freezing. Today, we're seeing temperatures 10-20 degrees warmer to start the morning with overnight lows in the 50s as opposed to the 30s. Afternoon high temperatures won't adjust much compared to yesterday but will still likely fall right around average for this time of year. MORE: https://www.cbs8.com/article/weather/forecast/san-diego-weather-update/509-addbcd08-0811-489a-b511-7cd202ccde99