Today’s Ask Storm Team 11 question: What is a millibar? A millibar is a unit of pressure. Millibar is abbreviated mb. Standard sea level pressure is 1013.25 mb. Meteorologists use pressure to ...
A millibar is a measure of pressure. The Earth’s atmosphere exerts a pressure of 14.7 pounds on every square inch at sea level, or 1,013.25 millibars (and progressively lesser pressures at higher ...