Usercane Bob

Usercane Bob is a currently category 5 active usercane located east-northeast of the Lesser Antilles.

Meteorological History
On September 7, 2015, a tropical wave developed over Western Africa. Early the next day, the wave exited the African coast and entered the extreme eastern Atlantic. A surface low pressure area formed that morning. An ASCAT pass revealing a closed circulation was present indicated that the tropical wave became a tropical depression around 23:30 UTC on September 8. Around 18:00 UTC the next day, it is estimated that the depression strengthened into a tropical storm, being named "Bob." Bob continued to gradually strengthen over the next few days, acquiring 50-mph winds by September 11. That weekend, a mid-level eye feature began to develop within Bob, and on September 15, it reached the surface and Bob was upgraded to a category 2 hurricane based on Dvorak estimates. Over the next two weeks, Bob changed very little in organization, initially because the strongest convection was displaced from the center. On September 29, wind shear increased, causing Bob to weaken back to a tropical storm.

The weakened Bob struggled to intensify for the next few weeks, embedded in a moderate shear environment. However, by October 18, a new mid-level eye feature began to develop. This eye feature began to reach the surface by October 25, and after an ASCAT pass revealed winds of 110-115 mph, Bob unexpectedly underwent rapid intensification and became a category 3 usercane with maximum sustained winds of 115 mph.