What is a heat dome?

The first heat wave of the year continues to hit our desert areas hard in San Diego County Thursday with an excessive heat warning in place.

Southwestern U.S.
Experts say a "heat dome" across the Southwestern United States is the source of the sweltering temperatures.

“This is the first time we’ve seen it so far this year so it’s more or less our first heat wave,” said Stefanie Sullivan, Lead Meteorologist at National Weather Service San Diego.

Day two of this heat wave brought scorching temperatures well over 100 degrees in places like Ocotillo Wells and Borrego Springs.

“Across pretty much all of the Southwest we have this high-pressure area, and that’s what’s bringing our heat,” said Sullivan.

[jamestfx]

Reporting heat dome pushes hot air to the surface. Then the actual weather forecast is colder than seasonal avg. Conflicting? -_•

[poempadgett]

Money-funneled manufactured media climate histrionics, lol. *¡Heat Domes?!*
🆘🙀~Oh My Dog‼️

[clagueb]

High temperatures is what is making it hot in some places while lower temperatures around 68 make other places cooler.

[mr.cmr.c]

Heat domes, atmospheric rivers, catastrophic, bomb storms etc. Same sht different name.

[kenrichter]

Same as the hole on the ozone?? Simple to people who make that crap up..wow hot on the desert, hmm

[Misaki]

climate activists sounding more like flat earthers every day

[fredneecher]

So high pressure produces compressed air. Who knew?

[spicyirwin]

Climate Chg will bring us a much hotter summer with huge hurricanes. Tornadoes will be over? Canada had firestorms before Calif.🥺🫣 i HATE CLIMATE CHG! Stay Safe y'all💜🙏💜