![Weather Underground on Twitter: "Radar out of Puerto Rico shows the outskirts of #TropicalStormErika approaching the island. http://t.co/mNuuanSuwG http://t.co/DaqHWycPFs" / Twitter Weather Underground on Twitter: "Radar out of Puerto Rico shows the outskirts of #TropicalStormErika approaching the island. http://t.co/mNuuanSuwG http://t.co/DaqHWycPFs" / Twitter](https://pbs.twimg.com/media/CNdxy51VAAAWjoe.png)
Weather Underground on Twitter: "Radar out of Puerto Rico shows the outskirts of #TropicalStormErika approaching the island. http://t.co/mNuuanSuwG http://t.co/DaqHWycPFs" / Twitter
![Puerto Rico Radar Obliterated After It Takes a Direct Hit From Hurricane Maria | The Weather Channel Puerto Rico Radar Obliterated After It Takes a Direct Hit From Hurricane Maria | The Weather Channel](https://s.w-x.co/pr_radar_hit_0.jpg)
Puerto Rico Radar Obliterated After It Takes a Direct Hit From Hurricane Maria | The Weather Channel
![Introduction to Tropical Meteorology, Ch. 9: Observation, Analysis, and Prediction: <small>9.3 Weather Analysis � </small><br /> <small>9.3.1 Analysis Tools � </small><br /> 9.3.1.4 Radar Imagery Introduction to Tropical Meteorology, Ch. 9: Observation, Analysis, and Prediction: <small>9.3 Weather Analysis � </small><br /> <small>9.3.1 Analysis Tools � </small><br /> 9.3.1.4 Radar Imagery](http://www.chanthaburi.buu.ac.th/~wirote/met/tropical/textbook_2nd_edition/media/graphics/sj_radar_vis_elevation.jpg)
Introduction to Tropical Meteorology, Ch. 9: Observation, Analysis, and Prediction: <small>9.3 Weather Analysis � </small><br /> <small>9.3.1 Analysis Tools � </small><br /> 9.3.1.4 Radar Imagery
![The Weather Channel on Twitter: "BREAKING: #Hurricane watch issued for Puerto Rico, USVI, BVI as #Gonzalo strengthens: http://t.co/NdsIQ7NU1n http://t.co/bZ5Uu6dIFy" / Twitter The Weather Channel on Twitter: "BREAKING: #Hurricane watch issued for Puerto Rico, USVI, BVI as #Gonzalo strengthens: http://t.co/NdsIQ7NU1n http://t.co/bZ5Uu6dIFy" / Twitter](https://pbs.twimg.com/media/BzxpQivIEAAPXN5.jpg)