wx_outlook
Forecast VFR confidence 3-15 days ahead for any airfield, reporting daily probability of poor conditions (low cloud or thunderstorms) to plan trips beyond short-range TAFs.
Instructions
Longer-range VFR confidence outlook (3–15 days) for an airfield or location. Pools an ensemble (ECMWF-ENS for low cloud; ECMWF-ENS + GEFS for CAPE) and reports, per day, the probability that the day is NO-GO — the share of ensemble members with poor VFR conditions (low cloud above threshold OR high CAPE/thunderstorm potential) during the daylight window. Also shows the deterministic ECMWF-IFS trend, plus the ICON-EU run (≤5 days) as an independent medium-range cross-check that sits between ICON-D2 (48h) and ECMWF (15d). This is the confidence measure for trip planning that short-range METAR/TAF/ICON-D2 cannot provide. Pass an ICAO code (resolved offline from a bundled airport database covering GA fields) or lat/lon directly.
Input Schema
| Name | Required | Description | Default |
|---|---|---|---|
| lat | No | Latitude in decimal degrees (alternative to icao) | |
| lon | No | Longitude in decimal degrees (alternative to icao) | |
| days | No | Forecast horizon in days, 3–15 (default: 7) | |
| icao | No | 4-letter ICAO airport code (preferred; coords resolved from the station DB). Provide this OR lat+lon. | |
| end_hour | No | Daylight window end, local hour 1–24 (default: 18) | |
| start_hour | No | Daylight window start, local hour 0–23 (default: 8) | |
| cape_threshold | No | CAPE J/kg that counts as No-Go / thunderstorm potential (default: 1000) | |
| cloud_threshold | No | Low-cloud cover % that counts as No-Go (default: 50) |