WVDR31 MDSD 141120 MDCS SIGMET 3 VALID 141120/141520 MDSD- MDCS SANTO DOMINGO FIR: EMBD TS OBS AT 1110Z WI N1830 W07130 - N1830 W06901 - N1601 W06904 - N1601 W07130 - N1830 W07130 TOP FL 460 MOV W INTSF=