Introduction

Overview

This manual has been consolidated in a descriptive and operational, informative and complete way, focusing on reading and interpreting METAR, SPECI, TAF and SIGMET from official DECEA sources (mainly AISWEB and REDEMET).

Objective

This manual aims to standardise the interpretation of weather messages and aeronautical notices, reducing ambiguity, improving situational awareness and supporting decision-making (planning, alternates, minima, trends and convective risk).

About this Manual

This manual was created according to the topics covered in the official DECEA and ICAO documents dealing with aeronautical meteorology, OPMET messages (METAR, SPECI, TAF) and NOTAM.

It is extremely important to read the official documents regularly and to consult the primary sources (AISWEB and REDEMET).