Aviation Investigation Report A98H0003

1.7.4  Upper Level Wind ^(STI1-47)

The wind at FL330 was from 210 degrees True at 65 knots, providing a ground speed for SR 111 of about 530 knots or nearly 9 nm per minute. The tailwind decreased during the descent, and diminished to about 13 knots from 200 degrees True at 10 000 feet.

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