[1] At the time, it was named the "Weather Bureau," so this was a good forecast.

[2] In 1953 upper-level wind observations were taken four limes daily at 130 rawinsonde sites over North America and at 195 United States pilot balloon stations, with complete soundings taken twice per day at the rawinsonde sites. Currently, we have twice-daily rawinsondes at about 110 sites over North America and pilot balloon soundings arc no longer available!