During the approach and passage of a frontal depression (sistema frontal) from the South Pacific into central/southern Chile, how do the barometric pressure and coastal wind direction typically evolve?

1. Ahead of the front: pressure drops rapidly with winds from North to Northwest (N-NW); As the cold front passes: pressure reaches minimum and begins to rise rapidly with winds shifting (backing) sharply to West-Southwest (W-SW)
2. Pressure rises continuously with steady winds from the East throughout the entire passage
3. Winds remain calm while barometric pressure stays perfectly steady at 1040 hPa
4. Winds blow from the South before the front and shift to East after the front