Bobgram 22 Jan

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 22 Jan 2023

When at sea, Your barometer can be a navigator
Always watch your barometer when doing a long sail, as it forewarns you of
wind changes.
In the past week I have shifted from Auckland to Palmerston North.
On Monday night I was saying farewell to a few friends at the Royal New
Zealand Yacht Squadron, and then met a previous user of my services, Mark
Hipgrave freshly arrived in NZ to participate in the Round North island see
http://www.ssanz.co.nz/rni2023/ and then the 50th anniversary of the Solo
Trans-Tasman this year, see http://www.solo-tasman.co.nz/#
Mark reminded me of the advice I gave him when he was delivering his yacht
The Healer to New Plymouth for the 2014 Trans-Tasman and cyclone LISA
appeared.
He remembers me emailing "Go due north until the barometer starts rising
then resume."
He wrote up the story for the My Sailing magazine in Australia, see
http://www.mysailing.com.au/how-a-professional-weather-router-directed-a-yac
ht-around-a-tropical-cyclone/

Last week I mentioned some apps that can turn an iPhone to a sensitive
marine barometer and barograph.
I was reminded via feedback to also mention barometer and barograph n apps
for android phones to barometers and the one mentioned was
barograph-craftsoft.en.aptoide.com/app .I have not tried it myself.
Just make sure you take a barometer with you on your next sailing adventure
and know how to use it.

TROPICS
Cyclone CHENESO is a tropical depression over Madagascar, but it should fade
soon.
The potential map for cyclone development during the coming week has some
hotspots around northern Australia and Vanuatu, as well as the Philippines.

WEATHER ZONES
South Pacific Convergence Zone
The SPCZ is expected to be very active from PNG all the way to French
Polynesia.
Low L1 between New Caledonia and Norfolk Island is expected to weaken as it
travels slowly southwest and then southeast towards west of North Island.
High H1 in the Tasman Sea is travelling east along 45S around south of the
South Island and then along 40S east of NZ.
Low L2 over Gulf of Carpentaria is travelling south and may briefly trigger
another low off the ne South wales coast on Monday/Tuesday then weaken.
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If you would like more detail for your voyage, then check metbob.com to see
what I offer.
Or Facebook at /www.facebook.com/metbobnz/
Weathergram with graphics is at metbob.wordpress.com (subscribe/unsubscribe
at bottom).
Weathergram archive (with translator) is at weathergram.blogspot.co.nz.
Contact is bob@metbob.com or txt 64277762212
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