Western Pacific Tropical Update – 7 February 2017

Bottom Line Up Front:  Tropical Depression (Ex-Bising) holding onto its convection.

Tropical Analysis – 7 February 2017 0600 UTC

Active Storms: Tropical Depression (99W/Ex-Bising)
Watches/Warnings: No tropical cyclone watches or warning.
Hazards: High surf along eastern seaboards of Philippines and western seaboard of Palau, mostly from Northeast Monsoon, but enhanced by Bising.
Discussion: Shear continues to win against the tropical depression this afternoon, but persistent convection is keeping the storm afloat.  The tropical depression is cut off from steering currents, allowing it to meander in the Philippine Sea for the next couple days before drifting southwestward by this weekend.

JMA is maintaining tropical depression intensity, due to the persistent convection but likely a generous call.  PAGASA has dropped warnings on what was known as Bising.  Meanwhile, JTWC has dropped Invest 98W from their bulletin, but re-added it as Invest 99W, focused on the current convective blob moving forward.  With shear expected to be high and dry air being mixed into the system, their give the area a “low” chance at development.

Satellite Snapshot, Tropical Depression (98W/Ex-Bising) – 7 February 2017 0600 UTC


5-Day Tropical Discussion: 

Elsewhere, tropical cyclone development is not expected to occur over the next five days.

Until next time, have a great day and take care. -Mike



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  1. DAILY WEATHER BRIEF – FEBRUARY 7th | Westernpacificweather.com - February 7, 2017

    […] Active Storms: Tropical Depression (99W/Ex-Bising) (From Mike Adcock’s Tropical Update. […]

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