With fall nearly a month underway, leaves are revealing their vibrant colors from the Northeast to the mid-Atlantic and the Midwest.
Leaves in much of Maine, New Hampshire, New York, Wisconsin and Minnesota are entering their period of peak coloration this week. A few areas are already past peak in the Northeast.
Over the next week, trees will experience a critical period, where cold temperatures are very important. The cold has a significant impact on the vibrance of leaves in locations that have not yet peaked.
Warm temperatures in this time frame can delay the trees that have not yet turned but shouldn't deter the ones that have, according to Marc Abrams, professor of Forest Ecology and Physiology at Penn State University.
The next locations to reach peak coloration will likely be in the coastal Northeast and much of Pennsylvania, Ohio and Michigan.
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