Definition
Adjustments made by a human weather forecaster to the raw output of computer-generated weather prediction models. The forecaster applies professional judgment, local knowledge, and recent observations to refine or correct the model's automated forecast before it is issued.
Plain English
Changes a weather forecaster makes to a computer's automatic weather prediction, using their own experience and the latest real-world information, before the forecast is released.
Context Anchor
Seen in aviation weather products or weather-service notes that describe how a forecast was prepared or adjusted.
Why Pilots Care
These changes improve forecast accuracy for flight planning and safety decisions.
Intuition Check
Do not read this as a pilot modifying a forecast. It means the weather forecaster changed the forecast information before it was published.
Example Sentence 1
The TAF the pilot used for flight planning included forecaster modifications based on a line of thunderstorms the model had under-predicted.
Example Sentence 2
Pilots checked the forecaster modifications before departure because the automated forecast missed a developing thunderstorm.