Metars and Tafs
In this part of the world if you have a Metar with a "trend" added it becomes a trend type forcast (TTF). The TTF is only valid for a short period of up to 3hrs and will take priority over the Taf for that period.
When I operated in Europe we used a Metar with a "trend" as just a Metar with a further observation and not as a forecast.
My question is do other countries use a TTF as a miny forecast?