Weather wise has many advantages to regular weather radars, including real time radar updates, NWS/NOAA weather alerts, with clear UI and easy to read design, and is ad free and 100% free of charge. Weather wise active link.
Pivotal weather is a powerful tool that provides detailed weather infromation including upper air dynamics, severe weather and hodographs with soundings analysis, and more. Pivotal weather is the place to go for detailed weather information. Weather you're a storm chaser, an enthusiast, or just a regular person. Pivotal weather is a must have for anybody interested in weather. Pivotal Weather Active Link
The national hurricane cneter is the go to place for information the tropics regarding hurricanes and tropical systems. Here you can find information on tropical systems, and sort by region, ex pacfic, atlantic etc. NHC Active Link