1 November, 2001

Weekly Climate Summary - South Pole Station, Antarctica

26 October 2001 through 01 November 2001 UTC

Temperature:

Average temp... -42.7°C / -44.9°F

Maximum temp... -30.9°C / -23.6°F on day 30

Minimum temp... -51.2°C / -60.2°F on day 27

Wind:

Average wind speed.......... 15.6 mph or 13.6 knots

Prevailing wind direction... Grid North

Maximum wind speed.......... 36 mph or 31 knots on day 31

Maximum wind direction...... Grid North

Average vectored wind....... 028 degrees at 12.6 knots

Station Pressure:

Average pressure... 675.5 mbs

Highest pressure... 687.7 mbs on day 1

Lowest pressure.... 668.5 mbs on day 30

Physio-altitude:

Average physio-alt = 10798 ft/ 3291 m

Highest physio-alt = 11065 ft/ 3373 m on day 30

Lowest physio-alt = 10339 ft/ 3151 m on day 1

Sky Cover:

Average cloud cover (8ths)... 6

Days clear................... 1

Days partly cloudy........... 2

Days cloudy.................. 4

Sunshine:

Sunset on 22 March 2002

Average hours per day... 17.3

Percent of possible..... 72

Visibility:

3 days with visibility of 1/4 mile or less.

Balloon flight data:

Number of soundings for the week..... 14

Average height of soundings.......... 31.7 mb, or 25305 meters Highest sounding..................... 5.9 mb, or 33245 meters

on day 29/12Z flight

0 soundings were missed.

14 soundings were terminated due to balloon burst.

**RECORDS**

No records were tied or broken during the week.

Katie Wallet

Supervisor of Science

Spotsylvania County Schools