Bobgram 23 Feb

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 23 February2025

Sea Ice is now at its lowest on record in the Arctic and also near a
record low in the Antarctic.
See
nsidc.org/sea-ice-today/sea-ice-tools/charctic-interactive-sea-ice-gra
ph


TROPICS

Cyclone Zelia roared ashore as a Category-4 storm just east of Port
Hedland on northwestern Australia's Pilbara coast but failed to
inflict significant damage in the remote sparsely populated region.
Tropical depression Number 18 is in the Coral Sea, TD19 is near Niue
and TD20 is in the South Indian Ocean.

WEATHER ZONES

Rain accumulation this week from Windy.com shows an intense SPCZ with
heavy rain especially in Coral Sea from TD18 and near Southern
Tonga/Niue from TD19.

Wind accumulation this week from Windy.com
The wind accumulation gives a good indication of the possible path to
be taken by TD18 and the max winds associated with TD19. That green
zone from Coffs to Bay of Islands shows OK winds for sailing mid
Tasman this week. Light winds this week for Vanuatu
LOWS and HIGHS
Tropical Depression 18 in Coral Sea is expected to move slowly south
this week.
Tropical depression 19 is expected to travel slowly southeast
affecting southern Tong and Niue.
Another tropical Low L1 is expected to travel southeast and remain
south of Tahiti
A trough is crossing South Island on Monday and Tuesday then fading
over North Island on Wednesday as HIGH H1 travels east from Aussie
Bight to Tasman Sea. Later in the week H1 travels across southern NZ.
Panama gulf---- some useful northerly winds this week.
Galapagos: An unusual LOW is sitting to SW of Galapagos maintaining
a west to SW flow over the group along with a east-going current over
2kt at 1degree South latitude.. Be AWARE.

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