Bob Blog

Bob McDavitt's ideas for sailing around the South Pacific.
Disclaimer: Weather is a mix of pattern and chaos; these ideas are from the
patterned world.

Compiled Sunday 26 November 2023

Earth briefly passed a critical warming threshold on Fri 17 Nov. According
to data from ERA5, the European Centre for Medium-Range Weather Forecasts'
(ECMWF) fifth generation reanalysis of the global climate from 1940 to the
present, 17 November 2023 was the first day in which the global temperature
exceeded 2°C above pre-industrial levels. These latest figures put Earth's
rising temperatures into sharp focus ahead of COP28, which is set to start
in Dubai, United Arab Emirates, on 30 November.



TROPICS
The South Pacific Convergence zone is located from Solomons to Tokelau and
then SE towards Southern Cooks.

HIGHS and LOWS

LOW1 has been east of Gisborne this weekend with southerly rain over NE of
NZ and is moving off to the southeast.
HIGH H1 is remaining quasi stationary around 35S to south of Tahiti, with a
strong ridge along 30S between Fiji and NZ.
LOW L2 off Tasmania by Monday is expected to cross NZ as a trough on Tuesday
followed by a SW flow on Wednesday.
HIGH H2 should follow L2 crossing NZ on Thursday and Friday.
LOW L3 is expected to move from Aussie interior to off NSW by Thursday and
then travel east across the Tasman this weekend and central NZ on Monday.
These are mediocre features this week, nothing to noticeably avoid.

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If you would like more details about your voyage, then check metbob.com to
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at bottom).
Weathergram archive (with translator) is at weathergram.blogspot.co.nz.
Contact is bob@metbob.com or text 64277762212.
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