As the sun sets, the convection current reverses and an offshore flow ensues causing a land breeze. After a land breeze develops, warmer temperatures flow east toward the lakeshore, sometimes causing high temperatures during the late evening. The lake breeze is not a daily occurrence and will not usually form if a southwest, west, or northwest wind generally exceeds 15 mph (24 km/h). The lake moderates cold air outbreaks along the lakeshore during winter months.