278 SOUTH AFRICAN MKTEOROLOflV. 



Duration and Movement of High and Low Pressures. 



The point now to be decided is, how long will a High remain 

 in approximately the same position, and where will it most pro- 

 bably move to? The results of investigating the periods when 

 Highs and Lows remained stationary, when they moved, and 

 where to, are embodied in the following tables : — 



Lozvs. — Summer. 



Duration. Movement. 



Type. Days Duration Days. Days Where moved to. 

 when when 



Low. I 2 3 More. Low. W E S P O L 



W 190 80 72 30 8 127 — 5 79 12 17 14 



E 106 79 16 9 4 89 25 — 13 7 42 2 



S 298 129 130 15 24 202 14 55 — 15 107 II 



P 58 40 18 — o 49 II 8 23 — 4 3 



O 389 135 68 57 129 169 73 5 75 3 — 2 



L 52 19 22 3 8 33 4 14 ro 14 19 — 



W 34 25 6 T, O 29 O 19 O 10 



E 3300030—003 

 S 127 47 36 21 23 77 3 3 — o 71 

 No other Types. 



HigJis. — Sum mer. 



