WSMX31 MMMX 191243
MMID SIGMET A3 VALID 191242/191642 MMMX-
MMFO MAZATLAN OCEANICA FIR OCNL TS OBS
 AT 1242Z
WI N0812 W11359 - N0938 W11955 - N0553 W12000 - N0526 W11837 - N0714 W11410
         CB TOP ABV FL500
MOV NNE 05KT NC.
=