BURNING- INDEX FREQUENCY 



SOVfiCf: Fffi£-W£ATHE# fi£COP0S, AV£#AG£ /9S6-/9S8 



HALF WCH ST/CK 

 APPAL ACM/AN SLAT 



ABOVE AY 3 /. 



JUNE 



no 

 doto 



BURMNG 

 fNP£X 



71* 



iiiiiMiiiir 



6t-7& 



£f-60 



4f-sa 



3/ -40 



21-30 



11-20 



0-10 



71* 



6/ -70 



41S0 



31-40 



21-30 



11-20 



o-io 



mm 



61-70 



Sf-60 



41-50 



31-4Q 



21-30 



11-20 



0-10 



mm 



61-70 



Sf-60 



41 -SO 



31-4C 



21-30 



11-20 



O'/O 



I Mill III! II 



JULY 



ANCHORA&E 



FORT YUKON 



PRIEST RIVER 



(N. IDAHO) 



FT HOWES 



f£. MO/YTJ 



60 £0 40 30 20 fO O 10 20 30 40 £0 60 



FFEQUF/VCY OF BL/fiA///VG /NDFX, PERCENT 



Figure 40 

 46 



