Archive for October, 2009
- The Snow of ’39 - October 29th, 2009 , Written By: Erick Brenstrum | 1 Comment
- Record-Breaking weather for Coastal Classic - October 27th, 2009 , Written By: Bob McDavitt | No Comments
- The Structure of Lows – part II - October 14th, 2009 , Written By: Chris Webster | 2 Comments
- Puysegur Point Storms - October 11th, 2009 , Written By: Erick Brenstrum | No Comments
- The Structure of Lows - October 9th, 2009 , Written By: Chris Webster | No Comments
- Early October Snow - October 6th, 2009 , Written By: Bob McDavitt | 2 Comments
Among the benefits of giving public talks on the weather are the stories you get back from the audience. Once, after a lecture in Dunedin when I described the cyclone of 1936 as the worst storm to have hit New Zealand in the last century, a number of people mentioned the snow storm of 1939. [...]
The weather pattern was almost perfect for the 2009 Coastal Classic
In my previous blog post I pointed out that tropical lows and cyclones don’t have fronts like the lows we’re used to around NZ, but rather, a core of warm air near the centre. I’d like to follow up by further contrasting tropical and mid-latitude lows, and looking a bit more closely at tropical cyclones and how they can affect our weather in New [...]
Years ago, I heard the wife of a lighthouse keeper talking on the radio about the weather at Puysegur Point, on the south coast of Fiordland, where she and her husband had been stationed for a time. Six months or so before they arrived there, a fishing boat had gone down in a storm with [...]
You are probably familiar with seeing lows and highs on our weather maps around New Zealand. See, for example, previous blog posts on a mid-July northern low, How Lows and Highs move and the satellite loop in Winds Aloft. The lows or depressions that affect us in the mid-latitudes are accompanied by warm and cold fronts with [...]
The snow that closed the Desert Road and Napier-Taupo Road on Sun-Mon-Tue 4-5-6th October 2009 was unseasonable. It was caused by a low pressure system deepening over the area at the same time as a cold southerly flow arrived, resulting in moist air being cooled from below in a cauldron of lowering pressure. This produced [...]