Hurricane Barbara (2019) (Blackford/What possibly happened)

Hurricane Barbara was a intense Category 5 hurricane which stayed out to mainly open waters in the eastern and central Pacific. The second named storm, second hurricane and first major hurricane of the 2019 Pacific hurricane season.

It inflicted minimal damage, with about $1 million in damages being inflicted in Hawaii as a remnant low due to flash flooding on the Big Island.

It reached peak intensity around 10 pm EDT on July 2, with winds of 160 mph. It was existent for just over a week before diminishing.

Meteorological history
On June 26, the NHC began monitoring the development of a possible tropical depression or storm several hundred miles southwest of the southern coast of Mexico. A tropical wave formed in the region of June 27.

The system moved northwest, slowly organizing into a tropical storm, and on the afternoon of June 30, the NHC noted that the storm had gained gale force winds and a well-defined circulation, and thus named it Tropical Storm Barbara.

Barbara continued west-northwest, slowly strengthening as it continued through a environment favorable for intensification. At around 21:00 UTC on July 1, the storm strengthened into a minimal hurricane about 970 miles southwest of the tip of Baja California.

The storm then started to undergo rapid intensification, becoming a Category 4 hurricane by noon on July 2. The storm reached it's peak intensity late on July 2 into the early morning of July 3 as a minimal Category 5 hurricane.

Soon after reaching it's peak, a eyewall replacement cycle began, and the storm also encountered cooler waters, causing the storm to start undergoing rapid weakening.

By the late afternoon of July 4, the storm was a minimal Category 2 hurricane, and on July 5, Barbara weakened to a tropical storm. Barbara was facing increased wind shear and degenerated into a remnant low on July 6.

It's remnants however continued west-northwest, passing south of the Big Island on July 8, causing flooding. The remnant low mostly lost circulation on July 8.

Hawaii
Some in Hawaii prepared for Barbara, fearing it would not diminish before impacting the state, and could still be a hurricane by the time it reached. Minimal preparations were done, however on July 2, with Barbara becoming a Category 5 hurricane, many people in the state accelerated preparations. The preparations were reversed as the storm underwent weakening.

Aftermath
Barbara was determined in August to had caused minimal damage, although it later on determined that as a remnant low it had caused about $1 million in damages on the Big Island of Hawaii.