December 12, 2011

Sub-tropical humidity should cover much of the country by the middle of the week. This is in advance of a major trough that is likely to bring rain to the South Island on Wednesday, before moving across the North Island during Thursday and early Friday.

“Whilst the expected rain and extra humidity may be useful for those needing to fill water tanks before the summer holidays, it is likely to be troublesome for horticulturalists preparing for the Christmas rush,” commented MetService Weather Ambassador Bob McDavitt.

“The rain is likely to target the ranges of Westland and Buller, bringing heavy falls from early Wednesday, before reaching the ranges of Nelson, northern and western Marlborough, Mount Taranaki, Northland, and possibly other parts of the central North Island late Wednesday and much of Thursday.”

This trough is already directing a flow of sub-tropical air onto the country, producing increasingly sticky and uncomfortable conditions. As it approaches mid-week, MetService advises people in the above areas to be ready for the possibility of some heavy rain.

McDavitt added, “There is likely to be a southerly change over the South Island by the end of the week, bringing sunnier skies and lower humidity for the weekend.”

For the latest weather forecasts and warnings visit metservice.com, or m.metservice.com for mobile devices.

For further information please contact:
Bob McDavitt Weather Ambassador (09)377 4831
MetService issues Warnings, Watches and Outlooks for severe weather over New Zealand.
Warnings are about taking action:
* When severe weather is imminent or is occurring
* Issued only when required
* Recommendation: ACT
Watches are about being alert:
* When severe weather is possible, but not sufficiently imminent or certain for a Warning to be issued
* Issued only when required
* Recommendation: BE READY
Outlooks are about looking ahead:
* To provide advance information on possible future Watches and/or Warnings
* Issued routinely once or twice a day
* Recommendation: PLAN

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