# /weatherapi/aviationforecast/1.6/* stops working

Calls to /weatherapi/aviationforecast/1.6/* on MET Norway Weather API stopped working on March 16, 2026.

## What to use instead

Use Aviationforecast 2.0 (TAC format) instead.

- API: MET Norway Weather API (api.met.no)
- Kind: Version retirement
- Announced: January 12, 2026
- Takes effect: March 16, 2026
- Calls after that day: fail
- Calls it hits: `/weatherapi/aviationforecast/1.6/*`
- Source: [Announcement](https://api.met.no/weatherapi/aviationforecast/2.0/documentation)
- Verified: November 6, 2026, against MET Norway Weather API's own pages
- Page: https://www.okapi.bot/providers/met/breaking-changes/weatherapi-aviationforecast-1-6-stops-working/

## MET Norway Weather API's words

> The old version 1.6 will be terminated on 2026-03-16.

Okapi finds the calls this change hits in your repo and opens the pull request with the fix: https://github.com/apps/okapi-agent