A look at invest area 99L indicates that it is getting somewhat better organized today. A general increase in shower and thunderstorm activity can be seen in satellite imagery although it is still rather poorly organized.
For the most part, the global models are not very bullish on 99L developing much in the coming days. The GFS suggests some strengthening and it is possible that this system becomes a tropical storm as it moves towards progressively warmer water. There is still some dry air around, enough so to limit the deep convection needed to allow 99L to thrive and grow at a rapid pace.
The NHC’s intensity model, SHIPS, shows modest intensification but keeps 99L below hurricane intensity. Yesterday, that same model suggested that it would in fact become a hurricane.
The ECMWF model or Euro, shows very little in the way of strengthening as the system moves towards the Lesser Antilles.
The bottom line here is that it appears some slow development is possible as 99L tracks generally westward towards the Windward Islands. Interests there should be ready for at least an increase in shower and thunderstorm activity in the coming days. I would not be surprised to see 99L become a tropical storm but it would probably be fairly weak and not very organized. Once it moves in to the Caribbean Sea, conditions are generally not very favorable for continued development.
Elsewhere, another tropical wave is moving through the Greater Antilles islands today and will spread showers and thunderstorms across Puerto Rico, Hispaniola and eventually Cuba. None of the reliable computer models indicate that this wave will develop in the coming days. Keep in mind that tropical waves often bring periods of gusty winds and squally weather. Conditions will improve across the region by tomorrow as the wave passes on by.
Speaking of tomorrow, our app, HurricaneTrack, hits the App Store. I will have a full blog post about it and the special limited time price that we will be offering as we officially roll out version 1.0. The app will feature a daily video blog plus live weather data during hurricane and tropical storm landfalls. This version will be just the start as we plan to add more features- but that will depend on YOU to help make it a success. We will have an Android version available just as soon as possible so no worries for our Android device users, we’ve got you covered too!