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How to read the Babadağ launch forecast

A launch status on this site is a model forecast; it is not a measurement and does not replace the official flight decision. This guide shows the order in which to read the forecast and what each line means.

First: this is a forecast

Launch statuses are computed from the weather model. The official launch and single/tandem decision rests with the Fethiye Slot Service Centre and the launch marshal, and the marshal's call always comes first. A number labelled "live wind" on the site only comes from a fresh station measurement; there is currently no live measurement at each launch.

Reading order

  1. Status and reason: Suitable, Risky or Closed, with the most important reason next to it (e.g. "launch in cloud", "rain", "wind outside the sector").
  2. Direction sector: the operators define the wind directions each launch accepts; the current sector is shown on every launch page.
  3. Wind layer: at 1700, 1800, 1900 and 1965 the take-off wind is computed from the pressure level at launch altitude (about 900–800 hPa). The 10 m surface wind shows the valley and sea breeze; if the two oppose each other the status shows "Confirm on site". 1200 sits in the valley layer, so it uses the surface forecast.
  4. Speed, gusts and crosswind: default thresholds: speed is Risky at 20 km/h and Closed at 30 km/h; the gust spread is checked separately (its limit is on each launch page). The crosswind component across the launch axis is shown in the panel.
  5. Cloud base: compared with the launch altitude (below).
  6. Rain, thunderstorms, daylight: rain, thunderstorms, the Dalaman METAR warning and the last-flight time feed the decision.
  7. Landing area: if landing is not suitable, every launch shows Closed or Risky for the same hour.

What does "Confirm on site" mean?

When the model is not sure of the data behind a decision it shows "Confirm on site" and asks for verification. Typical cases: the model direction is outside the launch sector but Babadağ's terrain can turn the wind; the wind is below 5 km/h and the direction is unreliable (at 1200 the direction gate is not applied in calm air); the models disagree; rain data could not be fetched. It does not mean "do not fly"; it means the launch marshal and the Slot Centre need to confirm. If there is a real risk reason such as layer conflict, landing risk or gusts, the status stays Risky.

Cloud base and launch altitude: the 5 October example

Cloud base is compared with each launch's own altitude. If the base falls below the launch altitude the launch counts as in cloud and shows Closed; within 500 m of the altitude it shows Risky (default threshold). If a lower launch is in cloud, flights from the launches above it would descend through that layer, so those launches show Closed too.

On the afternoon of 5 October 2026 the field reported exactly this: cloud base was about 1,400 m, flights continued from 1200 and 1700 m and above were in cloud. On the site the base is computed at launch level from the humidity profile on pressure levels and from the surface forecast; the lower of the two applies. When the sky clears (total cloud cover drops) the high launches show open again.

Is the launch status a measurement or a forecast?

A forecast. There is no live measurement at each launch; the official decision rests with the Slot Service Centre and the launch marshal.

Why can one launch be open while others are closed?

Each launch is assessed at its own altitude and with its own wind sector. For example, with a cloud base of 1,400 m the 1200 launch is below the cloud and 1700 m and above are in cloud.

What is the difference between "Risky" and "Closed"?

Closed means a threshold is clearly exceeded. Risky means a threshold is close or the model is not sure and asks for confirmation on site.

Related pages

Launches and wind sectors · Single and tandem status · Opposing wind layers · Meteorology guide

Page text last updated: . This page is informational. The flight decision is made on site by the pilot, the launch marshal and the Fethiye Slot Service Centre. Fethiye Slot Service Centre (SHM) ↗