Record (or close to it) cold can be expected over all of Texoma Tuesday morning.
Overnight lows may reach the low to mid 20s for a hard freeze in normal cold spots; while most locations should hover in the upper 20s. This my damage some crops and garden plants.
Warmer weather should return by Wednesday afternoon. Since the cold air reservoir will be emptied by this event, and since we’re getting very late into the season for freezes anyhow, this is likely the last freeze threat of the spring.