Think I can answer my own question regarding Hg vs HPa: The METAR is issued
from McMurdo, a United States base.

Mark.

Auckland

New Zealand.



"Mark" wrote in message
news:1101335415.277374@ftpsrv1...
Currently listening to New Zealand Air Force "Kiwi 940" as it flies to
McMurdo Station, Antarctica.

Sir Edmund Hillary is flying to Antarctica this morning, as a member of a
party that will commemorate the 25th anniversary of the Air New Zealand
air
crash, this Sunday. (A McDonnell-Douglas DC-10 crashed into Mt. Erebus
killing all 257 people on board.) I don't know if he is on board this
flight.

Nov. 24 22:12 UTC 9032 kHz USB - "Kiwi 940" is given a METAR for the ice
runway at McMurdo: "Light snow, clouds few 3,400, scattered 4,000,
overcast
6,000. Temperature -5, dew point -1, altimeter 29 decimal 30" "Visibility
reducing to 800 metres in light snow".

Interesting that the QNH is given in inches of mercury (29.30). Thought it
would be in Hectopascals?

Mark.

Auckland

New Zealand.