How many days ahead do you count forecasts for?

It depends on the model and the start time of the forecast:

• UM 4 km: 00 and 12 o'clock forecast - 120 hours (5 days)
• UM 4 km: 06 and 18 o'clock forecast - 60 hours (2.5 days)
• UM 1.5 km: 00 and 12 o'clock forecast - 78 hours (~ 3.5 days)
• WRF: 00, 06, 12 and 18 o'clock forecasts - 72 hours (3 days)
• GFS (non-ICM): 00 and 12 o'clock forecasts - 14 days