WEATHER BULLETIN AND SEA STATE ZONE X VALID 301200 TO 311200 UTC. PART I: SEVERE WEATHER WARN. SOUTHWEST AREA (LAT 45 TO 60 SOUTH AND LONG 95 TO 120 WEST): WIND W/NW 15/25KT SHIFTING TO E/SE 25/35KT GUSTS 45KT, SEA (1.5/2.5M), VIS AVERAGE (6/10KM), RN/SH. PART II: SYNOPTIC SITUATION (ANALYSIS 300600 UTC). HIGH 1022 HPA 29S/91W LOW 1006 HPA 51S/88W PART III: FCST. NORTHEAST AREA (LAT 18 TO 30 SOUTH AND LONG 76 TO 95 WEST): WIND S/SE 10/20KT, SEA (1.0/2.0M), VIS GOOD (10KM). NORTHWEST AREA (LAT 18 TO 30 SOUTH AND LONG 95 TO 120 WEST): WIND N/NW 10/15KT OCNL 20KT, SEA (1.0/2.0M), VIS GOOD (10KM). CENTRAL EAST AREA (LAT 30 TO 45 SOUTH AND LONG 78 TO 95 WEST): WIND N/NW 15/15KT GUSTS 35KT, SEA (1.5/2.5M), VIS GOOD (10KM). CENTRAL WEST AREA (LAT 30 TO 45 SOUTH AND LONG 95 TO 120 WEST): WIND N/NW 20/25KT GUSTS 35/40KT, SEA (1.5/2.5M), VIS GOOD TO AVERAGE (10/8KM) SH/RN. SOUTHEAST AREA (LAT 45 TO 60 SOUTH AND LONG 81 TO 95 WEST): WIND W/SW 20/30KT GUSTS 35/40KT, SEA (1.5/2.5M), VIS AVERAGE (4/8KM) RN/SH. MET108SS