SAN DIEGO COUNTY, Calif. — After a hot Thursday that broke several daily high-temperature records in Southern California, another warm day is in store for Friday.
Southern California's first Heat Advisory of the year took effect Wednesday morning with high temps soaring into the 80s, and even nearing 90 degrees inland. It was set to expire Thursday afternoon, but was extended through 6 p.m. on Sunday.
This all comes in the midst of the winter season as an abnormal rise in temps brings most regions between 15 and 20 degrees above average.
From East County to the coast, everyone was feeling the heat and we're supposed to be in "winter" in San Diego so it caught some people off guard.
A Heat Advisory was extended through San Diego County valleys through 6 p.m. Sunday.
Wednesday broke daily high-temperature records in San Diego (85), Newport Beach (83), and Anaheim (91). On Thursday, Oceanside Harbor hit a record high (88) along with Vista (91) and Escondido (89).
The warm temperatures this weekend could set a unique record for the warmest day that the Super Bowl has ever been played on. According to Accuweather the temperature at SoFi Stadium could be almost 90 degrees at kickoff on Sunday.
Furthermore, Santa Ana winds will direct more warm, dry air across the county, driving up fire concerns as relative humidity values fall into the teens. These easterly winds prevent clouds and sea breeze from affecting coastal communities. With fire season seemingly lasting year-round, local fire crews will be on high alert through this weekend.
It's also important to stay aware of symptoms of heat-related illnesses. Heat causes the highest number of weather-related fatalities in the nation, beating out floods, hurricanes, and tornadoes. The National Weather Service continues to remind visitors from cold parts of the country to take caution while outside. It's always a good idea during these warm temperatures to stay hydrated, cover skin in sunscreen, and seek shade often.
The heat and sunshine can be attributed to a building ridge of high pressure across the greater west coast. This blocks us out from wet, stormy weather -- including the winter weather and freezing temperatures plaguing a good portion of the United States last week and this week.
This trend of abnormally warm, dry weather will persist into the weekend with minor fluctuations in afternoon high temps. The coastline will remain in the low 80s with inland valleys between the mid and upper 80s.
Moving into early next week, onshore flow will return, cooling the county and bringing an increase in clouds and a chance for showers. Temperatures appear to cool down to average as we head into Tuesday and Wednesday of next week.
WATCH RELATED: Temperatures break daily records as highs reach the 90s in parts of San Diego County