FZPS04 SCSC 172236 CHILEAN NAVY WEATHER SERVICE VALPARAISO MARITIME METEOROLOGICAL CENTER WEATHER BULLETIN AND SEA STATE ZONE X VALID 181200 TO 191200 UTC. PART I: SEVERE WEATHER WARN. SOUTHWEST AREA (LAT 45 TO 60 SOUTH AND LONG 95 TO 120 WEST): WIND N/NE SHIFTING TO N/NW 20/30KT INC 30/40KT GUSTS 50/60KT, SEA 3.0/5.0M, VIS 4/2KM, RN. PART II: SYNOPTIC SITUATION (ANALYSIS 171800 UTC). HIGH 1034 HPA 43S/84W LOW 1010 HPA 40S/106W PART III: FCST. NORTHEAST AREA (LAT 18 TO 30 SOUTH AND LONG 76 TO 95 WEST): WIND S/SE 5/15KT, SEA 1.5/2.5M, VIS 10KM. NORTHWEST AREA (LAT 18 TO 30 SOUTH AND LONG 95 TO 120 WEST): WIND N/NE SHIFTING TO N/NW 5/15KT, SEA 1.0/2.0M, VIS 10/6KM, SH/RN. CENTRAL WEST AREA (LAT 30 TO 45 SOUTH AND LONG 95 TO 120 WEST): WIND N/NE SHIFTING TO N/NW 5/15KT INC 15/25KT DEC (190800 UTC) 25/15KT, SEA 2.0/3.0M, VIS 4/6KM, SH/RN. CENTRAL EAST AREA (LAT 30 TO 45 SOUTH AND LONG 78 TO 95 WEST): WIND E/SE 15/25KT OCNL 30KT, SEA 1.5/2.5M, VIS 10/8KM, SH/RN. SOUTHEAST AREA (LAT 45 TO 60 SOUTH AND LONG 81 TO 95 WEST): WIND W/SW SHIFTING TO N/NW 15/20KT INC 20/30KT GUSTS 40KT, SEA 2.5/3.5M, VIS 4/10KM, RN/SH.