Forecasts » Forecast Policy Thursday, January 19, 2017
 Forecast Policy

Weather Bulletin issued by the Vanuatu Meteorology and Geo-Hazards Department, Port Vila at 1:00 am Thursday, January 19, 2017

Synoptic Chart (181200Z).
A trough over Northern Islands of Vanuatu, slow moving.

Satellite Images.
Latest satellite (IR) imagery including a six-hour loop indicates few, scattered to broken low to mid-level clouds. Few CBs are also evident over northern islands. Latest Metar and Synoptic observations correlate with the imagery.

Models.
The trough mentioned above is expected to move further north of Vanuatu on Friday. A high pressure currently over Norfolk Island will dissipate while another high pressure will pushed over into Tasman Sea later today and will continue to move near north of New Zealand by Friday. A low pressure over Tasman Sea also moving east. The third high pressure will be over Tasman Sea later on Sunday and expected over New Zealand on Tuesday.

Outlook for the next 7 days.
Isolated showers, possible thunder about Northern islands while elsewhere, partly cloudy with chance of early morning showers. Isolated showers about Central and Southern Islands tomorrow while partly cloudy elsewhere. Partly cloudy about the group with chance of light showers expected on Saturday. Clear weather for Sunday. Isolated showers about southern Islands while partly cloudy elsewhere on Monday. Isolated showers over Shefa and Tafea Province while elsewhere, partly cloudy conditions for Tuesday and Wednesday next week. Light southeasterly winds persist throughout. Maximum temperatures range from 30oC down south to 32oC up north. Minimum temperatures range from 23oC down south to 25oC up north.