WHOLE VOL. 



LAT. 80° 



497 



SEA-LEVEL PRESSURE AT 10° INTERSECTIONS 



Lat. 80° N. Long. 90° W. 

 950 mb. + 



Mean G6.1 66.9 72.8 74.8 72.6 69.0 65.3 61.6 65.4 65.1 66.2 65.0 



67.7 



Lat. 80° N. Long. 80° W. 

 950 mb. + 



