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Severe weather and flooding across North America

Updated 12 times since CLSTR started tracking revisions of this situation.

What changed

2026-09-10 00:34 UTC → 2026-09-13 16:13 UTC · added removed

The Northeast and Mid-Atlantic regions have faced intensifying weather threats, characterized by multiple rounds of severe storms and flash flooding risks. In late August, flood watches were issued for New York City, New Jersey, and eastern Pennsylvania, with forecasters warning of rainfall rates reaching 2.5 inches per hour. A level 2 risk of severe thunderstorms, including damaging winds and hail, extended from Upstate New York to Northern Virginia. Researchers noted that while extreme rain events in the eastern United States may occur less frequently, they are increasingly characterized by “larger geographic footprints.” By early September, a heat dome began steering the jet stream into the Northeast, causing a continuous stretch of intense storms. On Tuesday, wind gusts up to 70 mph were recorded across southeastern Pennsylvania, northern Delaware, and southern New Jersey, resulting in power outages for more than 85,000 customers. On September 2, severe thunderstorm threats expanded across North America, stretching from the Great Lakes in the United States to southern Ontario, Canada. The storms caused significant damage to the grandstands and infrastructure at Rogers Stadium in Toronto, though no injuries were reported. Infrastructure impacts included the suspension of subway services, the closure of the Don Valley Parkway, and a road collapse in Vaughan. Toronto Hydro reported approximately 65,000 customers lost electricity, and flight delays occurred at Toronto Pearson International Airport. Following the storm, the City of Toronto issued a seven-part order to Live Nation Canada to remedy unsafe conditions at Rogers Stadium. The venue sustained damage to the north stadium structure, seating areas, and structural framing, while high winds overturned tents and shipping containers. On September 9, it was announced confirmed that the AC/DC concert scheduled for September 16 at Rogers Stadium has been canceled.

Versions

  1. 2026-09-13 16:13 UTC Severe weather and flooding across North America
  2. 2026-09-10 00:34 UTC Severe weather and flooding across North America
  3. 2026-09-06 22:32 UTC Severe weather and flooding across North America
  4. 2026-09-06 15:04 UTC Severe weather and flooding across the United States and US/
  5. 2026-09-04 21:00 UTC Severe weather and flooding across the United States and US/
  6. 2026-09-03 19:24 UTC Severe weather and flooding across the United States and US/
  7. 2026-09-03 10:58 UTC Severe weather and flooding across the United States
  8. 2026-09-02 18:34 UTC Severe weather and flooding across the United States
  9. 2026-09-02 15:51 UTC Severe weather and flooding across the United States
  10. 2026-08-27 16:55 UTC Severe weather and flooding across the United States
  11. 2026-08-23 23:31 UTC Severe weather across the United States
  12. 2026-08-18 21:14 UTC Severe weather across the United States
  13. 2026-08-17 16:37 UTC Severe weather across the United States

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