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    Wellington, NZ, about 120m ASL.

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  1. At Cropp River, on the west coast of the South Island, 1086 mm was recorded in 48 hours. For perspective, Christchurch, which is about 100 miles east of the site, recorded <1 mm in the same period. This is enormously larger than any of the UK's 48, 72 or 96 hour records (all of which are a measly 400-500 mm). It's not really that far off Britain's highest monthly rainfall total of 1396 mm! New Zealand's calendar month record is currently at 2927 mm (or 3813 mm if you allow for any 31 days period). Since March has had a very long dry spell, Cropp may not be able to beat its current monthly record.
  2. We just passed the Perihelion, when Earth is closest to the sun. This is when NZ records its highest UV values. Wellington is hitting 12 each day now. As you can see, for about 4-5 hours every sunny day from November - February, the sun in central NZ is stronger than has ever been recorded in the UK. It's probably more like 5-6 hours and October - March in northern NZ. Even in early November in northern NZ, the peak UV index is already higher than has ever been recorded in the UK. Effectively, a 25C day in NZ does not feel like a 25C day in the UK. One reason is the sun (you cannot really "enjoy the sun" in the same way you might in the UK); another reason is the ability to get higher dewpoints. But that depends on location, and NZ is also capable of getting lower dewpoints than the UK in decent foehn wind situations.
  3. Does anyone have any functioning AAM or torque monitoring sites anymore? All the usual suspects stopped working around June. Thanks.
  4. The New Zealand Meteorological Service offers a Master of Meteorology as part of its trainee meteorologist course: https://about.metservice.com/our-company/careers-and-job-opportunities/trainee-meteorologist/ It might be complicated without an NZ/Aus passport or an NZ work visa though.
  5. There is a live thread here: https://www.stuff.co.nz/national/101542667/live-cyclone-gita-nears-new-zealand Some locations in the upper South Island received 50mm of rain in an hour yesterday. In just 18 hours, Kaikoura recorded one third of it's typical annual rainfall! Westport had easterly gales, gusting 60 knots. Westport is a pretty wild, windy place but is not accustomed to easterly gales - they tend to be very damaging. There's also lots of snow to 1000m or less in the lower South Island.
  6. Cyclone Gita last week moved directly over Tonga's main island, incredibly causing no fatalities. It's still classified as a TC at 33S, though will transition soon. It crosses New Zealand on Tuesday, bringing extreme weather. As is often the case with these former cyclones, it brings up cold air the time of year. Below is some GFS guidance showing the incredible 850hPa temperature contrasts: 23C in the warm core of Gita, and 0C just 500 miles south. A 23C 850hPa temperature gradient from the north to the south of the South Island!
  7. There were decent chunks of high pressure dominated weather in October 2013 I think.
  8. Yes, it looks like despite that anomaly, Nov 97, Dec 97 and Jan 98 all came in above average for the whole UK.
  9. Going in the other direction down here. Clear sky UV index around 6-7 across the North Island as we move into April. Pretty much high summer values for the UK. This time of year is generally much better for everyone I think. When the UV index hits 12 or 13 (sometimes 14) every day from late Nov to late Jan, it really isn't fun to be in the sun too long!
  10. The winter so far in 250hPa zonal wind anomalies: Not an easy pattern to break due to positive feedbacks within the system.
  11. Doesn't seem to be an amazingly strong correlation over the British Isles. Also....it looks opposite to what might be expected. Negative correlation would imply that as QBO goes up, surface temperature goes down.
  12. Amusingly, where I live the winter max temperatures are almost always in that range (more like 9C-14C). Houses have thin wooden walls, single glazing, and no central heating. Can be dismal. We have 4 dehumidifiers in this house and I usually wear a down jacket indoors all winter.
  13. To touch very briefly on this. Two images from work by Anders Persson (previously SMHI and ECMWF) regarding forecast consistency:
  14. Australia's problems are less. Most of the population is on the east coast, which has climatologically much wetter summers than California, though as you say it is dependent on the ENSO cycle. It also has a smaller population than California. This Californian drought is deeply concerning. It might take until April or May, when the chance of rains are over, before it hits home properly.
  15. Pretty much. The most robust highs on the planet are the subtropical ridges (think Azores High, North Pacific High, South Pacific High) rarely go above 1030hPa. A 1050-1060hPa high could occur from purely low level conditions (cold dense air near the surface), with little upper support. Hence, could be barrelled out of the way fairly easily. Or, it could be persistent. Hard to tell from looking purely at a surface pressure field.
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