WSCA31 MDSD 290620 MDCS SIGMET 1 VALID 290620/291020 MDSD- COR MDCS SANTO DOMINGO FIR: EMBD TS OBS AT 0610Z WI N1862 W06915 - N1644 W06910 - N1645 W07179 - N1840 W07200 - N1862 W06915 TOP FL500 MOV NE INTSF=