The launch of Crew 11 and its astronauts aboard a SpaceX Falcon 9 and Crew Dragon was halted 67 seconds before liftoff today due to a passing pop-up storm.

“On the Countdown Net, Hold! Hold! Hold! We are standing down for a violation of weather rules,” SpaceX’s launch director said, putting an end to hopes for a launch on what had otherwise been a hot, humid and hazy Space Coast day.

The inclement weather didn’t seem like much, especially to a resident: a small pop-up shower was immediately to the north of Kennedy Space Center and Launch Complex 39A, and its presence violated the Cumulus Cloud rule in place in the Launch Rules.

While the storm seemed like a benign rain shower, it still was a system that carried the potential of electrical activity, something unacceptable for rockets flying nearby.

Rinse and Repeat, Tomorrow

Almost immediately after today’s scrub, NASA announced that the “next launch opportunity will be tomorrow, Aug. 1, at 11:43 a.m. ET.”

That is, if the planned attempt is not called off well in advance before the new planned T-0. Tomorrow’s weather forecasts from the 45th Weather Squadron of Space Launch Delta 45 — the official weather authority for the Eastern Range — are forecasting a High Risk that weather along the ascent corridor will not be acceptable. Weather along the ascent corridor is critical in the unlikely event of a launch abort.

That path is generally up the Eastern Seaboard of the US, the Canadian Maritimes, and finally all the way to Ireland. It’s quite a stretch of land, but one that’s also critical for crew safety.

If anything, today proved that the weather here on the Space Coast can and will change in a few short minutes. Let’s hope for tomorrow that it changes back in NASA and SpaceX’s favor.

Here is the schedule info, as of 08:00 PM ET:

Mission	Falcon 9 Block 5 | Crew‑11
Organization	SpaceX
Location	Kennedy Space Center, FL, USA
Rocket	Falcon 9 Block 5
Pad	Launch Complex 39A
Status	Go for Launch
Status Info	Current T‑0 confirmed by official or reliable sources.
Window Opens	Friday, 08/01/2025 11:43:42 AM EDT
Window Closes	Friday, 08/01/2025 11:43:42 AM EDT
Destination	Low Earth Orbit (ISS)
Mission Description	SpaceX Crew‑11 is the eleventh crewed operational flight of a Crew Dragon spacecraft to the International Space Station as part of NASA’s Commercial Crew Program. The four-person crew includes astronauts from NASA, JAXA, and Roscosmos. They will dock with the ISS approximately 39 hours after launch and remain in orbit for ~6–8 months to support station operations and scientific research.