Atlantic - Fiona forms August 17, 2016 (warm, days, storm, humidity)

[Psychoma]

Wednesday August 17, 2016 5pmEST:

Invest 98L became Tropical Depression 6, and now has organized enough to become Tropical Storm Fiona. Winds 40mph, moving NW 16mph, pressure 1006mb.

Official updates from the National Hurricane Center can be found issued at 5am/pm & 11am/pm EST at: National Hurricane Center

Satellite Imagery can be found here: Fiona - Satellite Products and Services Division - Office of Satellite and Product Operations

[muslim12]

Looks like it will head out to sea though.

[Psychoma]

Thursday August 18, 2016 11amEST update:
Winds 45mph, moving WNW 8mph, pressure 1006mb (29.71in). Tropical Storm force winds extend 35 miles from center. Expected to maintain a general WNW / NW movement next few days.

Trying to keep itself alive as it enters fairly dry air (relative humidity just near 40%). Stronger shear expected to hinder development in 48-72 hours. But very warm waters will give it something to fight back with. As such, intensity models are scattered ranging from dissipated system to hurricane within 96 hours. Time will tell. Likely a weaker system. NHC forecast is a mix of these models showing a generally weak TS.

Impact: Waves around Fiona currently 8-15 feet.

Image: "cone" reminder - that's just showing where the center could be over time.

[Psychoma]

Saturday August 20, 2016 5am update:

Winds 40mph, moving WNW 13mph, pressure 1008mb (29.77in).

Expected to weaken to a Tropical Depression later today. Strong shear and dry air is tearing Fiona apart.

Track uncertain but what remains of it generally headed WNW. Conditions not favorable for restrengthening.