NEW : Minnesota 's Pagami Creek fire grows to more than 100,000 acres . The blaze is burning in the northern part of Minnesota's Upper Peninsula, and has already burned through about a third of its land area. A smoky haze stretches as far south as Milwaukee . Minnesota 's governor has sent National Guard helicopters to assist firefighters . Tyler Barnes , a spokesman for baseball 's Milwaukee Brewers , said that haze contributed to the team 's decision to close the retractable roof at its stadium for Tuesday night 's game against the Colorado Rockies . The fire 's spread is `` unprecedented '' for the area , a spokeswoman says .
NEW : Minnesota 's Pagami Creek fire grows to more than 100,000 acres . The blaze is burning in the northern part of Minnesota's Upper Peninsula, and has already burned through about a third of its land area. A smoky haze stretches as far south as Milwaukee . Minnesota 's governor has sent National Guard helicopters to assist firefighters . The fire 's spread is `` unprecedented '' for the area , a spokeswoman says .