Situation:

A trough of low pressure with cloud and showers remains slow moving over Southern Cooks.

An easterly wind flow prevails over Northern Cooks. Meanwhile, a weak trough of low pressure lies slow moving over the northeastern parts of the group.

Forecast to midnight tomorrow for the Southern Cooks:

Occasional showers, heavy at times and few thunderstorms.

Moderate to fresh southeast to westerly winds.

Moderate seas.

Further outlook:

Cloudy periods with brief showers.

For Rarotonga:

Some showers and isolated thunderstorms.

Further outlook:

Cloudy periods with brief showers.

For the Northern Cooks:

Cloudy periods with some showers about and to the northeast of Manihiki. Elsewhere, cloudy periods with few showers. 

Moderate easterly winds, fresh at times.

Moderate seas.

Further outlook:

Cloudy periods with brief showers.