President Barack Obama speaks to people aboard a bus after the Memorial Day ceremony at Abraham Lincoln National Cemetery in Elwood, Ill., was canceled because of severe weather, May 31, 2010. The President stopped to talk to people that were attending the event but were forced to return to their buses for safety reasons.

President Barack Obama speaks to people aboard a bus after the Memorial Day ceremony at Abraham Lincoln National Cemetery in Elwood, Ill., was canceled because of severe weather, May 31, 2010. The President stopped to talk to people that were attending the event but were forced to return to their buses for safety reasons.

May 31, 2010 "The skies opened up on Memorial Day outside of Chicago. When the lightning began, the Secret Service told the President that it was too dangerous to proceed. He took the stage by himself and informed the audience that his speech was canceled and that for everyone’s safety, they should return to their busses. Later, he boarded a few of the busses to thank them for attending and apologized for not being able to speak."

May 31, 2010
"The skies opened up on Memorial Day outside of Chicago. When the lightning began, the Secret Service told the President that it was too dangerous to proceed. He took the stage by himself and informed the audience that his speech was canceled and that for everyone's safety, they should return to their busses. Later, he boarded a few of the busses to thank them for attending and apologized for not being able to speak."

As rain falls, President Barack Obama begins to take part in the annual Memorial Day ceremony at Abraham Lincoln National Cemetery, Elwood, Ill., May 31, 2010. Heavy rain and lightning later forced the cancelation of the event.

As rain falls, President Barack Obama begins to take part in the annual Memorial Day ceremony at Abraham Lincoln National Cemetery,  Elwood, Ill., May 31, 2010. Heavy rain and lightning later forced the cancelation of the event.

With storm clouds approaching, President Barack Obama and other dignitaries sing the national anthem at the 11th annual Memorial Day ceremony at Abraham Lincoln National Cemetery, Elwood, Ill., May 31, 2010. Heavy rain and lightning later forced cancelation of the event.

With storm clouds approaching, President Barack Obama and other dignitaries sing the national anthem at the 11th annual Memorial Day ceremony at Abraham Lincoln National Cemetery, Elwood, Ill., May 31, 2010. Heavy rain and lightning later forced cancelation of the event.

President Barack Obama pauses after laying a wreath at Abraham Lincoln National Cemetery in Elwood, Ill., on Memorial Day, May 31, 2010.

President Barack Obama pauses after laying a wreath at Abraham Lincoln National Cemetery in Elwood, Ill., on Memorial Day, May 31, 2010.