Rare Florida Snow Signal? 540 Thickness Line Dips Near Coast as Rain-to-Snow Transition Zone Edges Toward the Southeast
FLORIDA — A striking winter weather signal is emerging along the Southeast coast, as forecast maps show the 540 thickness line — a key atmospheric marker for the rain-to-snow transition — dipping unusually far south toward Florida. Meteorologists often use the 540 line as a rough guideline for where precipitation can change from rain to…
