Hurricane Harvey dropped so much rain the US National Weather Service added new colors to its maps — Quartz

Hurricane Harvey’s rainfall is, quite literally, off the charts. The US National Weather Service needed to add two colors to its flood maps—a dark purple hue to represent “20 to 30” inches (51-76 cm) rainfall, and a lighter purple to indicate “greater than 30 inches.” #Harvey in perspective. So much rain has fallen, we’ve had…

via Hurricane Harvey dropped so much rain the US National Weather Service added new colors to its maps — Quartz