12 January 2001 Through 18 January 2001 UTC Temperatures: Average Temp...-28.3 C/-18.9 F Maximum Temp...-23.9 C/-11.0 F on day 17 Minimum Temp...-31.8 C/-25.2 F on day 16 Sky Cover: Average Sky Cover in 8ths... 5 Days clear............. 2 Days partly cloudy..... 2 Days cloudy............ 3 Sunshine Data: Sunset on 21 March Average hours/day......... 15.9 Percent of possible....... 66 Station Pressure in Millibars: Average pressure.... 688.0 mb Highest pressure.... 691.8 mb on day 18 Lowest pressure..... 683.4 mb on day 14 Physio-altitude in Feet and Meters: Average physio-alt = 10328 ft/ 3148 m Highest physio-alt = 10500 ft/ 3200 m on day 14 Lowest physio-alt = 10186 ft/ 3105 m on day 18 Visibility: 0 days with visibility of 1/4 mile or less. Wind: Average wind speed......... 9.0 mph or 7.8 kts Maximum gust............... 20 mph or 17 kts on day 17 Maximum gust direction..... from Grid North Vectored wind direction.... 051 degrees Vectored wind speed........ 6.1 kts Prevailing direction....... Grid East Balloon Flight Data: Number of soundings for the period.... 14 Average height of soundings...... 8.9 mb Highest sounding................. 5.4 mb, or 36439 Meters on day 18/00Z Flight 0 soundings were missed. 13 soundings were terminated due to balloon burst. 1 sounding was terminated due to flight equipment failure. **Records** No records were tied or broken during the week.