NWS added a light purple, or lavender, layer to show what it is calling "unfathomable rain," or greater than 30 inches.
#Harvey in perspective. So much rain has fallen, we've had to update the color charts on our graphics in order to effectively map it. pic.twitter.com/Su7x2K1uuz
— National Weather Service (@NWS) August 28, 2017
And more rain is on the way.
This isn't the first time a new color was needed to illustrate a weather phenomenon. In 2013, Australia needed another color for a deadly heat wave that blanketed the island continent, the Guardian reported.
Experts say 12 trillion gallons of rain has fallen in Texas during Harvey.
Credit: DaytonDailyNews
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