citydiver:
Aeolus...you are right, I did not want to hear that...Ugh! I don't know why I managed to not realise that, but oh well...
Something else no one wants to hear, but a quick search of SCUBABoard would bring up many posts that relate to this.
Utila is different than Roatan. Roatan is 17 miles long x 3 miles wide and lies along a WSW to ENE line.
This huge barrier defends the South side (CoCoView, where you are staying in on the S side) from "Northers" that are frequent in January.
How to know when the Bay Islands are getting bashed?
Look at any US weather map. When arctic cold masses envelop the upper midwest (ND, MN, IL, WI) the weather downturns a few days later in the Bay Islands. Rain, overcast, etc.
If the cold mass pushes farther down (KS, IA, IL) it takes another step downwards for the weather in the Bay Islands a few days later
When the cold hits Texas, a day later the diving on the North side of Roatan is
over.
Utila is a very small island. It is hard to "hide behind" it's lee side (away from the wind).
Go, have fun. Remember that each incremental change in the ocean environment changes the niche and behaviors of the miriad creatures that are your for observation. Go and enjoy the differences.