Here are some one liners...
Weather becomes a Moving Phenomenon -- The first modern weather map is published showing wind patterns and directions. I talk about chaos theory, the Butterfly Effect, Jurassic Park and the Jarrell tornado.
A New Union: The Dominion of New England -- King James the 2nd, unites the New England colonies into the Dominion of New England. The colonies are unhappy. I talk a little about the Dominion of Canada.
Weather becomes a Moving PhenomenonEdmund Halley has produced the first weather map. He marks out the trade winds and other weather oddities such as monsoons using lines with arrows to show the direction of the winds. For all intents and purposes, this is the basis for the modern weather map you will see on TV in the modern day. Halley's work will lead to later scientists publishing papers in 1735 and 1740 concerning the reasons why weather occurs at all. Essentially, it is due to the rotation of the Earth, changes in atmospheric pressure and the fact that air acts like a fluid under certain conditions. Now all they need is a computer sufficiently powerful to model it all. Right?     
A New Union: The Dominion of New EnglandKing James the 2nd has jiggled the charters to join the various colonies into a single federation, the Dominion of New England. The region covers what is modern day New York, New Jersey, New Hampshire, Maine, Vermont, Massachusetts, Rhode Island and Connecticut, but this will not be a happy marriage between the colonies. There is a reason why they were separate before. Separate governing entities allowed for unhappy colonists to find something different. Now the colonies are supposed to be governed more efficiently from a central location, and in closer compliance with British law, but representatives from the various colonies are not being paid for their travel expenses to join in the central government. Sir Edmund Andros, the Dominion governor, sets up his offices in Boston, so the only representatives to show up are the ones living near by... primarily from Massachusetts. The Dominion will last as long as King James... and that is... not for long.  
This Year on Wikipedia
Year 1686, Wikipedia.