25 May 2001 through 31 May 2001 UTC

Temperatures:
Average Temp...-50.7(C)/-59.3(F)
Maximum Temp...-40.3(C)/-40.5(F) on day 26 
Minimum Temp...-63.2(C)/-81.8(F) on day 31 

Sky Cover:
Average Sky Cover (8ths)... 3 
Days clear................. 4 
Days partly cloudy......... 1 
Days cloudy................ 2 

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

Station Pressure (millibars):
Average pressure........ 678.3 mb
Highest pressure........ 682.9 mb on day 25 
Lowest pressure......... 675.0 mb on day 25 

Physio-altitude in feet and meters:
Average physio-alt = 10692 ft/ 3259 m
Highest physio-alt = 10817 ft/ 3297 m on day 25 
Lowest physio-alt  = 10519 ft/ 3206 m on day 25 

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

Wind:
Average wind speed............ 17.7 mph or 15.3 kts
Maximum gust.................. 44 mph or 38 kts on day 25 
Maximum gust direction........ from Grid North
Vectored wind direction....... 015 degrees
Vectored wind speed........... 14.3 kts
Prevailing direction.......... Grid Northeast

Balloon flight data:
Number of soundings for the period... 6 
Average hgt of soundings............. 122.1 mb, or 14295 meters
Highest sounding..................... 45.2 mb, or 19558 meters
                                      on day 28/00Z flight.

 1 sounding was missed.
 5 soundings were terminated due to balloon burst.
 1 sounding was terminated due to ground equipment failure.

**RECORDS**
Day 25 - The daily average wind speed of 25.1 kts / 28.9 mph broke the previous daily
         record of 21.4 kts / 24.6 mph set in 1994.
       - The daily peak wind speed of 38 kts / 44 mph broke the previous daily record
         of 36 kts / 41 mph set in 2000.