Laura Skirde's Forecast - Jan. 31, 2012

• Frost advisory in effect for northern parts of the Pittsburgh area

  

• Frost advisories and freeze warnings issued for all of Lower Michigan

  

• Sunny, nice Tuesday in Philadelphia region, tracking rain Wednesday. Here's the weather forecast.

  

• Mostly cloudy and cooler Monday in Philadelphia region

  

• San Francisco leaders commemorate landmark Yick Wo case that shaped U.S. civil rights movement

  

• Gunman shot by trooper and civilian after opening fire on Memorial Drive in Cambridge; 2 in critical condition

  

• Video shows suspect in Cambridge shooting firing gun

  

• Man charged with sexual assault, kidnapping in connection with attack at cemetery