: Loo Sa ON atat cee Se a : era ia a fe wen : so . . ee ee oF , 5 ae weet ate dasa n tareal ‘ ed Un al a Tht . he 153 LAKE TEMPERATURE 8-12 kt -—-O °o ORD lex —_— Omgw 206 o1o0 TAMS Oram8 26 o-~ 0.02 () tam-4 25 on 0.10 ARG i TAM-6 4c | INDIANA 27 DECEMBER 1966 rn | 10 km l ARG | i6 c 27 DECEMBER I966 bee { 'INDIANA j 10 km | t | | i | Fig. 120.—Weather and pollution maps for Chicago area, 27 December 1966 EUR ES