11 May 2001 through 17 May 2001 UTC

Temperatures:
Average Temp...-55.9(C)/-68.6(F)
Maximum Temp...-41.8(C)/-43.2(F) on day 11 
Minimum Temp...-66.9(C)/-88.4(F) on day 17 

Sky Cover:
Average Sky Cover (8ths)... 3
Days clear................. 3
Days partly cloudy......... 3
Days cloudy................ 1 

Sunshine:
Sunrise on 22 September 2001
Average hours/day......... 0.0
Percent of possible....... 0

Station Pressure (millibars):
Average pressure........ 682.5 mb
Highest pressure........ 698.7 mb on day 11 
Lowest pressure......... 673.6 mb on day 17 

Physio-altitude in feet and meters:
Average physio-alt = 10534 ft/ 3211 m
Highest physio-alt = 10871 ft/ 3313 m on day 17 
Lowest physio-alt  =  9931 ft/ 3027 m on day 11 

Visibility:
2 days with visibility of 1/4 mile or less.

Wind:
Average wind speed............ 10.4 mph or 9.0 kts
Maximum gust.................. 30 mph or 26 kts on day 13 
Maximum gust direction........ from Grid Northeast
Vectored wind direction....... 073 degrees
Vectored wind speed........... 6.5 kts
Prevailing direction.......... Grid Northeast

Balloon flight data:
Number of soundings for the period... 7 
Average hgt of soundings............. 82.8 mb, or 15339 meters
Highest sounding..................... 8.7 mb, or 29238 meters
                                      on day 14/00Z flight.

 0 soundings were missed.
 6 soundings were terminated due to balloon burst.
 1 soundings were terminated due to floating balloon.

**RECORDS**
No records were tied or broken during the week.