The National Weather Service has issued a Heat Advisory which goes into effect at Noon today and will be in effect until 7pm Sunday evening for the following counties, Benton, Cedar, Clinton, Des Moines, Henry, Iowa, Jefferson, Johnson, Jones, Keokuk, Lee, Linn, Louisa, Muscatine, Scott, Van Buren and Washington. Heat indices will approach 100-105 degrees during Saturday and Sunday afternoon. Take necessary precautions to beat the heat. Other National Weather Service offices will likely issue similiar advisories later this morning.