Hurricane Maria’s origins trace back to a tropical wave that moved off the coast of West Africa on September 12, 2017. This vigorous disturbance carried the potential for significant development as it traversed the Atlantic, moving through an environment conducive to intensification.
The Precursor Wave and Early Development
The system that would become Maria began as a classic tropical wave, a common weather feature originating over the Sahara Desert. As this wave propagated westward across the Atlantic, it interacted with the moist, warm air of the tropical Atlantic Ocean. By September 14, the National Hurricane Center noted the increasing organization of showers and thunderstorms associated with the disturbance.
Formation Near Barbados
By the morning of September 16, the system had consolidated sufficiently to be designated a tropical depression. This formation occurred roughly 65 miles east of Barbados, marking the official start of Hurricane Maria. Shortly after this designation, the storm strengthened into a tropical storm, earning the name "Maria" from the official Atlantic naming list.
Intensification and Landfall
Maria’s development was rapid due to exceptionally favorable conditions. Warm sea surface temperatures and low wind shear allowed the storm to undergo explosive intensification. By September 18, Maria had escalated to a Category 5 hurricane, with sustained winds reaching 175 miles per hour near its core.
Path Through the Caribbean
After devastating the island of Dominica as a high-end Category 5 storm, Maria tracked toward the northeast Caribbean. It made landfall on Puerto Rico on September 20 as a high-end Category 4 hurricane, causing catastrophic damage that reshaped the island’s infrastructure and landscape.
Tracking and Final Landfall
Following its catastrophic strike on Puerto Rico, Maria continued its path, weakening slightly but maintaining significant strength. The system eventually curved toward the east coast of the United States, though it remained offshore. On September 25, Maria made its final landfall near Cape Race, Newfoundland, as a post-tropical cyclone, before merging with a frontal system.
Impact and Legacy
The genesis of Hurricane Maria in the eastern Atlantic allowed it to become one of the most powerful storms ever recorded in the North Atlantic basin. Its origin point, far from land, provided the necessary distance for the storm to organize into a devastating force. The hurricane’s legacy includes profound humanitarian, environmental, and economic impacts, particularly on Puerto Rico and Dominica, underscoring the importance of monitoring tropical waves originating off Africa.
