NOAA Image of the Day
This image, taken by GOES East on August 24, 2016, shows weather disturbance Invest 99L to the west near Puerto Rico and Tropical Storm Gaston to the east.
According to NOAA's National Hurricane Center, Tropical Storm Gaston could reach hurricane strength today, however the storm could move into environmental conditions that might weaken it temporarily. The current forecast shows the storm pushing through these conditions in roughly 72 hours and re-strengthening, perhaps significantly.
The National Hurricane Center is also monitoring weather disturbance Invest 99L as it moves westward across the northern Leeward Islands and Puerto Rico. Although the system lacks well-defined circulation, it is still producing tropical-storm-force winds over the northernmost Leeward Islands and adjacent waters. Forecasters have noted that this system could become a tropical storm or tropical depression at any time during the next couple of days. The storm should be located near the central or northwestern Bahamas by the end of the weekend.
Courtesy of NOAA Environmental Visualization Laboratory