RampCast

See IROPS coming, hours before it starts.

Every hour, RampCast gives your station the chance that irregular operations begin in the next six hours, and how many departures will break. It runs on public weather data from the first day, and gets sharper once your departures feed in.

The outlook on a storm day at Atlanta Chance that IROPS begins within six hours, each hour from 05:00 to 20:00, with the alert line at 30 percent. The outlook warned at 09:00; IROPS began at 14:00. Below, departures that broke each hour: 549 of 931 for the day. IROPS from 14:00 21% 31% 32% 46% 40% 45% 37% 54% 63% 62% 35% 41% 30% 29% 30% 0 Warned 09:00 05:00 07:00 09:00 11:00 13:00 15:00 17:00 19:00 21:00 23:00 Chance scheduled departures each hourleft 15+ min late, cancelled or diverted Flights
Atlanta, Sunday, June 14, 2026. Replayed from the backtest on public data only. The outlook warned at 09:00, five hours before IROPS began at 14:00; a duty manager's rule of thumb fired at 13:00. 549 of 931 departures broke that day.

Scored against 1,300 real IROPS episodes

9 US hubs, January 2023 to August 2026. Each season was forecast by a model that had never seen it. An episode counts as caught when an alert was up at least an hour before it began.

Rule of thumb: last hour was bad, or thunder on the field 502 caught, 2,388 false alarms
RampCast, public data only 589 caught, 973 false alarms
RampCast, public data, allowed as many false alarms as the rule 850 caught
RampCast with your departure feed 826 caught, 1,402 false alarms

IROPS here means three or more hours in which a station's share of departures leaving 15+ minutes late, cancelled or diverted is in its worst 5%. Departures are BTS on-time data: domestic flights of US reporting carriers.

How it works

  1. Start on public data

    Station weather reports and forecasts, SPC storm outlooks, NWS warnings, GOES satellite lightning and FAA programs. Your team signs in and sees the outlook the same day.

  2. Send your departures

    Upload or push the export your system already produces, every 15 to 30 minutes. Map its columns once; the outlook then reads how your own operation is going.

  3. Check it every morning

    A morning-after report puts each hour's forecast next to what happened, and a same-day check scores it against the FAA's ground stops and delay programs.

A 60-day pilot at one station

We agree the success criteria on day one: the share of IROPS episodes warned at least an hour ahead, false alarms a week, and median warning time. Every week you get a report scored on your own departures. If the targets are met, the pilot fee becomes your first month; if they are not, you keep the reports and owe nothing more.

Request a demo

Tell us your station. We will replay one of its storm days with you and set you up with a view-only login.