Legal cannabis shops near Seattle Stadium are reporting a noticeable uptick in sales as thousands of international tourists flood the city for the FIFA World Cup, and state and local health agencies have responded with a direct warning: Washington’s cannabis products are almost certainly stronger than anything visitors have encountered before.
“If you’re coming from an area where cannabis isn’t legal, you may not understand that one gummy or one cone is a dose. It will take an hour or more to kick in,” said Jimmy Leonard, pharmacist and chief clinical officer with the Washington Poison Center.
Public Health Seattle and King County launched a dedicated World Cup resource page to help out-of-town visitors navigate the state’s legal cannabis landscape. Standard legal edibles in Washington are packaged in 10-milligram servings, a dose that health experts say is likely overwhelming for someone with little to no tolerance. Research suggests many people begin to feel the effects of THC at just 2.5 milligrams, a fraction of what a standard serving contains.
The potency of Washington’s cannabis products extends well beyond edibles. “Something with 60% or 90% THC will have much more potent effect than 10-20% THC. Dabs and vapes’ THC levels are typically higher than that of a rolled joint,” said Beatriz Carlini, a resident cannabis research expert with UW Medicine.

The most common mistake health officials are seeing, or hoping to prevent, is visitors consuming more after feeling no immediate effect. Because edibles must pass through the digestive system, effects can take 60 to 90 minutes to appear. That lag time often leads people to take additional doses before the first has taken effect. “Start low and go slow and just wait it out,” Leonard advised. “Don’t try to take two or three thinking it’s going to kick in faster.”
Symptoms of overconsumption include dizziness, panic or extreme paranoia, hallucinations, a fast racing heart rate, and nausea or vomiting. Despite the influx of international visitors, health agencies say there has been no significant surge in emergency room visits tied to the tournament so far. “Other than some heat-related incidents at the stadium or fan zones, we haven’t seen any significant surge of emergency room visits,” a representative with the State Department of Health said.
The safety push is happening at the point of sale as well. Budtenders at cannabis dispensaries near Seattle Stadium confirmed the Washington State Department of Health supplied their shops with visitor safety guides ahead of the tournament. The guides outline local laws, including the fact that public consumption remains illegal in Washington, and emphasise safe transportation. Driving under the influence of cannabis carries the same legal consequences as driving under the influence of alcohol.
Anyone experiencing a bad reaction to a cannabis product can call the Washington Poison Center hotline at 1-800-222-1222 for free, confidential, 24-hour guidance. Additional safety information is available at cannabissafelywa.org and on King County’s World Cup resource page.



