Tropical Storm Irene, White Mountains - From 6PM Saturday, August 27, 2011 through midnight Monday, August 29, 2011 the White Mountain National Forest was closed because of Tropical Storm Irene. This tropical storm caused massive damage along the East Coast of the United States and the White Mountain National Forest was officially closed during the storm. The above photo of the East Branch of the Pemigewasset River, near the Lincoln Woods Trail, shows how the river looked just days after ...