The Republican Party must hate the Atlantic Hurricane season with a vengeance.
In 2008, the convention (being held in Minneapolis / St. Paul) found itself on the forecast track for Hurricane Gustav.
In 2012, the convention (held in Tampa, Florida) has its first day curtailed because of Tropical Storm Issac which saw the convention chairman call the Convention to order, explain what was happening, and then start a clock showing the American national debt before placing the convention in recess ten minutes later.
And now in 2020, Hurricane Laura (as will be) and Hurricane Marco are both forecast to make landfall no further than 400 miles from each other within a timescale of 60 hours which (although I have only been focused on hurricanes since 2003) has to be the closest two landfalling hurricanes have landed and the shortest amount of time between them.
