radiosonde profile of wind velocity from Spokane (Washington) 		
on May 18, 1980 at 16:00 (LT); from Holasek and Self (1995)		
		
height (km)	wind speed (m/s)	
1		4.1	
2		5.4	
3		9.5	
4		8.7	
5		15.7	
6		17.7	
7		14.9	
8		16.9	
9		22.7	
10		30.9	
11		36.7	
12		33.0	
13		26.8	
14		18.1	
15		13.2	
16		10.3	
17		9.5	
18		7.4	
19		7.4	
20		5.8	
21		3.3	
22		3.3	
23		2.9	
24		2.5	
25		1.7	
26		2.1	
27		2.1	
28		2.1	
29		2.1	
30		2.1