An unusually strong heat dome is impacting the western United States, bringing some of the hottest temperatures so far this year from California to Canada. CNN's Derek Van Dam explains how the weather phenomenon works and what those impacted can expect.
Video Ad Feedback
How does a heat dome work?

An unusually strong heat dome is impacting the western United States, bringing some of the hottest temperatures so far this year from California to Canada. CNN's Derek Van Dam explains how the weather phenomenon works and what those impacted can expect. Discover more videos, including live streams and exclusive storytelling, on our Watch page.

1:01 • Source: CNN
Get Looped in 13 videos
An unusually strong heat dome is impacting the western United States, bringing some of the hottest temperatures so far this year from California to Canada. CNN's Derek Van Dam explains how the weather phenomenon works and what those impacted can expect.
Video Ad Feedback
How does a heat dome work?
1:01
Now playing
• Source: CNN
Anthropic says during routine testing some of its AI models accessed the internet and hacked into three separate organizations’ systems. CNN's Hadas Gold breaks down what happened and what experts are saying about AI safeguards in the wake of this latest incident.
Video Ad Feedback
What to know about the Anthropic hack
1:32
Now playing
• Source: CNN
Dr. Anthony Fauci invoked the Fifth Amendment more than 100 times during his contentious Senate Homeland Security hearing Wednesday. CNN's Adam Cancryn explains why Sen. Rand Paul has now scheduled a contempt of Congress vote and what that means for Fauci.
Video Ad Feedback
What to know about the Fauci contempt vote
1:27
Now playing
• Source: CNN
A missile apparently fired by Russia landed deep inside Polish territory early Thursday, leaving a massive crater. CNN's Nick Paton Walsh explains how an intentional Russian attack inside a NATO member's territory would be an escalation in the war, but only if Poland was the intended target.
Video Ad Feedback
Why Poland is trending
1:25
Now playing
• Source: CNN
FIFA president Gianni Infantino says they are seeking investors to control commercial rights for future editions of the men's and women's World Cup. CNN's Andy Scholes breaks down the reaction to FIFA's controversial plan.
Video Ad Feedback
What to know about FIFA's plan to sell the World Cup
1:24
Now playing
• Source: CNN
The US military successfully intercepted an Iranian “surprise attack” on US forces based in Jordan, US Central Command announced on Tuesday. CNN's Zachary Cohen explains how President Donald Trump is responding.
Video Ad Feedback
Why 'Iran launches missiles' is trending
0:54
Now playing
• Source: CNN
The murder trial of Lindsay Clancy, the Massachusetts mother who pleaded not guilty to the 2023 strangling of her three children, began Monday. CNN's Jean Casarez breaks down the key points from the testimony so far and how Clancy's attorney is presenting her defense.
Video Ad Feedback
Why Lindsay Clancy is trending
1:59
Now playing
• Source: CNN
Senate Majority Leader John Thune is under pressure from the White House and fellow Republicans to pass the "SAVE America Act" and other key legislation before the upcoming August recess. CNN's Annie Grayer breaks down the status of the bill and explains what else is on the Senate's agenda.
Video Ad Feedback
Why John Thune is trending
1:28
Now playing
• Source: CNN
OpenAI CEO Sam Altman said on a recent podcast that we are now "in the singularity." CNN's Hadas Gold explains what the artificial intelligence theory is and why Altman thinks we're reached it.
Video Ad Feedback
Why the singularity is trending
0:56
Now playing
• Source: CNN
LeBron James is moving from Los Angeles to Philadelphia for his record-extending 24th NBA season. CNN's Patrick Snell explains why James made the decision to continue playing after he considered retiring after last season.
Video Ad Feedback
Why LeBron James is trending
1:28
Now playing
• Source: CNN
Friday marks the rescheduled White House Correspondents’ Dinner, nearly three months after a shooting abruptly ended the event. CNN's Brian Stelter breaks down what will be different this time around.
Video Ad Feedback
What to know about the White House Correspondents' Dinner
1:52
Now playing
• Source: CNN
An advisory committee to the US Food and Drug Administration is meeting this week to decide if certain peptides should be allowed to be dispensed by compounding pharmacies. CNN's Jacqueline Howard explains why this move is being considered, even though FDA experts have said there is a lack of evidence on the effectiveness and safety on some of these peptides.
Video Ad Feedback
What you should know about peptides
2:02
Now playing
• Source: CNN
A Secret Service agent on Vice President JD Vance’s security detail is under internal review and has been put on administrative leave after being suspected of leaking information about Vance’s travel. CNN's Kristen Holmes explains how this incident comes at a time the Trump administration has vowed to crack down on what it views as unauthorized disclosures to the press.
Video Ad Feedback
Why 'Vance Secret Service' is trending
1:30
Now playing
• Source: CNN