Weather Bulletin issued by the Vanuatu Meteorology and Geo-Hazards Department, Port Vila at 1:00 pm Sunday, April 30, 2017
Synoptic Chart (300000Z).
A northwesterly trough lies across north Vanuatu to east of southern group. Another trough east of north Vanuatu extends from a low pressure north of Fiji.
Latest satellite (IR/VIS) imagery including a six-hour loop indicates mostly few, scattered, broken to overcast low level, mid-level and high clouds about the Vanuatu. Isolated embedded CB about Northern and parts of Central Vanuatu. Latest METAR and Synoptic observations correlate with the imagery.
The trough east of the group will move further east southeast and expected over Fiji later tomorrow afternoon and expected near Fiji area till Friday. The low pressure mention above will remain in the area between north of Vanuatu and Fiji till Saturday. A high pressure over Victoria extends a ridge about New Caledonia will be over Tasman Sea later this afternoon and will move east past New Zealand on Wednesday. Another high pressure is expected over Tasmania on Thursday and will remain in that area till Saturday.
Outlook for the next 7 days.
Cloudy conditions with isolated showers, heavy at times and possible thunder about the group. Isolated showers about Northern and parts of Central islands while partly cloudy elsewhere is expected tomorrow. Partly cloudy about the group on Tuesday till Thursday with chance of brief showers about parts of Northern group on Wednesday, Thursday and spread about the group later on Friday. Partly cloudy with chance of brief showers about the group on Friday. Isolated showers about Torba province while partly cloudy with chance of brief showers elsewhere on Saturday and Sunday next week. A severe weather warning is current. Light to moderate south southeast winds over Vanuatu Group. Minimum temperature range from 20°C down south to 24°C up north. Maximum temperature range from 30°C down south to 33°C up north.