789 

WVMX31 MMMX 171320 CCA

MMEX SIGMET 1 VALID 171211/171811 MMMX-
MMFR MEXICO FIR VA POPOCATEPETL PSN N1901 W09837 OBS
 AT 171211Z
VA CLD BTN SFC/FL280 WI N1908 W09843 - N1908 W09834 - N1858 W09834 - N1858
         W09845 - N1908 W09843.
MOV SW AT 5KT. .
OUTLK AT 171800 VA CLD BTN SFC/FL280 WI N1859 W09844 - N1856 W09833 - N1746
         W09850 - N1825 W10008 - N1859 W09844.
=