MetService Blog

Few weather events are as dramatic, dangerous or challenging to predict as tornadoes.

About the tornado of Tuesday 3 May 2011

On the afternoon of Tuesday 3 May 2011, a line of showers moved southwards across Northland. Ahead of this line the winds were moderate northeasterlies; behind it, they were moderate northwesterlies. Along the line, the winds converged - that is, pushed against each other. Below is a portion of a working chart for 3:00pm Tuesday 3 May 2011, drawn by one of the Severe Weather Forecasters.

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Here's a couple of close-ups of Tropical Cyclone Bune as it passed near Raoul Island overnight Monday.

7:00pm Monday 28 March 2011. Tropical Cyclone Bune was about 80km north of Raoul. Infra-red satellite imagery courtesy Japan Meteorological Agency.

23rd March is World Meteorological Day.

Each year meteorologists around the world celebrate a chosen theme together to commemorate the anniversary of the founding of the World Meteorological Organization (WMO) on this day in 1950.

Storm tide is the storm surge + the tide. King Tides occur soon after moon reaches its perigee within a day of a full or new moon phase.

This article was originally written by Erick Brenstrum and published in New Zealand Geographic, issue 99 September-October 2009

This article was written by Erick Brenstrum and originally published in New Zealand Geographic, issue 76, November-December 2005.

Written by Steve Ready Meteorologist

On average, about nine tropical cyclones form in the South Pacific tropics between November and April each year. Three or four of these leave the tropics and nearly all of them undergo a marked transformation to a mid-latitude cyclone – a completely different weather system – before they reach New Zealand.

Written by Wayde Beckman from the Health Sponsorship Council.
February 2011

 “I got windburnt today.”  “My lips feel windburnt.”  It’s something we hear from time to time (and even say ourselves) to explain red, sore, dry skin or lips after being outside.  And in this glorious country of ours, it’s hard to be outside and not feel the sweet caress (or fierce pummeling) of the wind.  But what is windburn?  And can the wind really burn our skin?

Tropical Cyclone Yasi