LEGEND 



_A- COLD FRONT \ ^^ 

 _^ WARM FRONT ^n 

 .^4. OCCLUDED FRONT "^ 



. ISOBARS 



i WIND DIRECTION AND 

 VELOCITY 



■_'2i®-7 



aO ■ll* t-OMCITUOt 



Fig. 4.— Weather conditions prevailing at 6:30 A.M., C.S.T., November I, 1955; shown are pressure areas, isobars, fronts, 

 and wind directions and velocities as reported by the United States Weather Bureau. 



15 



