Weather Headlines:
- Above-normal temperatures into next week, near record-high temperatures
- Heat Advisory for the inland and mountains Saturday through Monday, but will likely be extended
- Extreme Heat Warning in the deserts extended through Friday, August 28th.
- Monsoon flow makes things more humid into next week
- Chance of showers and thunderstorms over the mountains and deserts
High pressure, or the heat dome, is anchored over the Southwest, and it isn't budging any time soon. That means the heat and humidity are here to stay.
Temperatures will trend 3 to 13 degrees above average into next week with mostly 80s for the coast, mostly 90s inland to the mountains, with 100s for the hottest spots, and between 110 and 117 in the deserts. In fact, Chula Vista, Ramona, Palomar Mountain, Campo and Borrego Springs will be near record highs on Saturday.
Overnight temperatures will also be warmer due to the higher humidity, so we won't get much relief in the overnight hours. You can expect 70s all night for the coast, inland and mountains with 100s and 90s most of the night in the deserts. The hot, humid days and warm nights will increase the heat risk.
A Heat Advisory will be in effect inland to the mountains from 10am Saturday until 8pm Monday for highs between 89 and 105 degrees. This will likely get extended.
An Extreme Heat Warning has been extended for the deserts until 8pm Friday, August 28th! Highs will top out between 111 to 117 degrees.
There is a chance of showers and thunderstorms over the mountains and deserts each afternoon and evening, though storms are not likely on Saturday. Some days may have better chances than others. The chance of isolated showers and thunderstorms increases slightly Sunday through Wednesday. This may change, depending on how the monsoon moisture surges in each day.
Just like earlier this month, any storms that form may produce heavy rain, strong winds, lightning, small hail and localized flooding.
Above-normal temperatures and high humidity are likely to stick around through the end of the month.
Saturday's Highs:
Coast: 78-88°
Inland: 90-101°
Mountains: 89-103°
Deserts: 113-117°
Tips to Stay Safe in the Heat: Extreme heat is a danger to anyone, especially those with respiratory issues, people who work outdoors, children and the elderly. Make sure outdoor pets have safe shelter and cool water. Cars turn into ovens in a matter of minutes so be sure to check the back seat and never leave children or pets in the car. Wear light-weight, light-colored, loose-fitting clothing and stay hydrated! Avoid strenuous outdoor activities, enjoy air conditioning whenever possible and if you're working in the heat make sure to take breaks often and drink plenty of water.
Now is a good time to check your cars for loose tire tread or parts—anything that could easily spark a fire. In addition, make sure you have a go bag and working flashlights in case of an emergency or power outage. Also, prune and trim trees and shrubs to make a defensible space around your home.
Follow ABC 10News Meteorologist Megan Parry on Facebook at Megan Parry 10News, Instagram @mis_meg_wx and Twitter @10NewsParry.
