01 / Historical foundation
The inherited starting point blends two Thrill Data reference values: 48 minutes for 2024 (35% weight) and 62 minutes from the available 2025 snapshot (65% weight). The 2025 value is a partial-season snapshot, not a verified full-season average. These inputs were preserved from the supplied build and were not independently revalidated in this update. This is a lightweight planning model, not a trained or backtested attendance model.
Assumed adjustments: Wednesday −8 min; Thursday −4; Friday +8; Saturday +14; Sunday unchanged. October 28 onward adds 5 minutes. These adjustments are editorial assumptions, not values fitted to the historical dataset. The ±25-minute range is an illustrative uncertainty allowance; individual houses can exceed it substantially.
2024 historical summary ↗ · 2025 snapshot ↗
02 / Live updates & confidence
During the selected current event night (planning window 6:30 PM–2 AM Eastern), three or more fresh operating house queues activate the live adjustment. We take the median house wait, divide by the assumed hourly curve, and blend 60% of that implied nightly level with 40% of the historical baseline. This is queue pressure, not attendance or capacity utilization. Ride waits are displayed separately.
Data older than 15 minutes, unknown timestamps, closed attractions and missing waits do not enter the calculation. Manual observations take priority for their house while fresh. With fewer than three qualifying houses, the forecast remains historical. Even a live-adjusted forecast is unvalidated and low confidence.
03 / Weather & event calendar
Open-Meteo supplies hourly temperature, precipitation probability, weather codes and wind for Universal Studios Florida (28.4744, −81.4678). We request up to 16 days, convert timestamps to America/New_York, and include the hours after midnight in the preceding event night. The November daylight-saving transition is handled by timestamp conversion.
Rain is shown alongside crowd estimates; it does not mechanically reduce the crowd forecast. Storm-related closures can increase queues, and we do not have a validated weather-to-attendance model. This app is not a weather alert service.
Event date listing ↗ · Universal lineup & Premium Scream dates ↗