Weather Bulletin issued from CIMS Apr 18th 06:15pm.

Situation:
A southeasterly wind flow prevails over Southern Cooks.

A trough of low pressure with associated cloud and showers lies slow
moving over Northern Cooks.

Forecast to midnight tomorrow for the Southern Cooks:
Partly cloudy periods with brief showers.
Moderate to fresh southeasterly winds.
Moderate to rough seas.
Moderate southerly swells.

Further outlook:    
Fine apart from brief showers

For Rarotonga:
Partly cloudy periods with brief showers

Further outlook:    
Fine apart from brief showers

For the Northern Cooks:
Occasional showers and few thunderstorms.
Moderate northwesterly winds.
Moderate seas.

Further outlook:    
Some showers and isolated thunderstorms.