Possible Clues:

• Like extended forecast for the Rockies, say
• Over a considerable distance
• Covering great distance, or looking further ahead
• Like some weather forecasts, look -- no good when going over mountains!
• Travelling considerable distance to large working farm
• For far firing in the Rockies, for instance
• Liberal farmhouse accommodating acceptable sort of weapon
• Covering a great distance well into the future
• At a distance there's pine on the mountains
• Type of weather forecast for the Andes?