Whither the weather "we"?

Watching the weather reports on the news channels, I have noticed an increasing tendency for the weather reporter to speak about "we" as the recipients or victims of weather trends. This is neither the editorial nor the royal "we" but a sort of symbiotic traveling "we" as the report moves from country to country. What makes the weather reporter one of us? If the reporter were speaking of the place in which he or she was located, the "we" might make sense, but when a Brit working in Qatar remarks of the Philippines, "We will be enjoying a respite from the seasonal rains..." I start to wonder about the internal conversation that results in this verbal expression.