Colors 
For quick reference: 
... I think that the TD and TS colors are (and Category 5 might be) too bright - they seem to suggest there's something more important about those storms than the storms with hot colors.  I looked at your track map, and it feels my eye gets drawn to the green tropical storm dots too much there too.  Also, the contrast between Category 1 through 2 might be increased some, it's hard to tell the difference, though white vs. yellow is fine.  Category-5 red looks good on your map, but as a background behind text it makes things harder to read, so a lighter shade of red or pink might be better.  Maybe grey, white, aqua, white, yellow, orange, pink-ish?  Thanks for reading! -^