I had posed the question I posted here directly to Shelby. That is, in her prophetic vision, she interpreted swimming in the pool to mean summer. I asked if, rather than meaning summer, could swimming in the pool  mean "not winter" and so be compatible with a May Rapture. Below is her response.
 
 
 
Hi Brad,
 
You are right swimming in the pool does not necessarily mean summertime it
just means not winter. But I still believe the rapture will be later in
the year. We are already swimming in our pool. The children started
swimming right after Easter. We can usually swim till late October.
 
God Bless,
 
Shelby Corbitt
 
 
As Shelby says, she believes the Rapture will happen later, but at least she confirms that her vision does not rule out a Rapture this month.
 
Brad