f od te ed ER tele 1 a Re de Ma met Pe we ee ee di Oe 152 LAKE TEMPERATURE oO ORD ORD , 0.6 2. TAM-6 |; te mi AR o2 | 10c 27 DEC 66 INDIANA 27 DEC 66 O049% eg TAM-§ R29 | to km 10 km 24 © Oo oro ORD INDIANA : TAM~ | Set 24 2l ! arc * tic | van 27 DEC 66 j a2 | 0.2! ARG f2c | worana 27 DEC 66 trarirt | 10 km 10 km { Frc. 119.—Weather and pollution maps fur Chicago area, 27 December 1966 I ‘