ALTON — An Alton man apparently died of a heart attack while clearing snow from his property Thursday morning.
Carl W. Walker, 66, of Alton developed shortness of breath while operating a snow blower outside his residence Thursday morning, according to the Madison County Coroner's Office. He went inside, where his wife called 911.
Walker was transported to St. Anthony's Hospital, where he was treated for a myocardial infarction and pronounced dead at 9:51 a.m.
Coroner Steve Nonn warned residents that the dangers of bitter cold include frostbite and hypothermia, as well as additional dangers for people with heart disease or other pre-existing medical conditions.
"We want to make sure that people close out the holiday season safely and without tragedy," Nonn said.
Those with medical conditions should consult a physician to determine their limitations during the bitter cold expected this weekend. Symptoms of hypothermia include confusion, dizziness, exhaustion and profound shivering. Frostbite appears as gray, yellow or white skin discoloration, waxy skin and numbness.
Funeral arrangements are pending at Gent Funeral Home of Alton.