I found this quite amusing given the controversy(?) over Obama giving the Tomb of the Unknowns at Arlington a pass this Memorial Day...
"President Barack Obama's Memorial Day observance was stopped in its tracks on Monday by a torrential downpour accompanied by bolts of lightning and booming thunder.
Obama thrilled the crowd at Abraham Lincoln National Ceremony by appearing under an umbrella as the rain poured down. But he did not deliver his prepared remarks honoring troops who died fighting for the United States.
Instead he urged the crowd to seek shelter.
"We don't want to endanger anyone, particularly the children, in the audience. A little bit of rain doesn't hurt anybody, but we don't want anybody struck by lightning," he said from the podium, the storm so loud his words could barely be heard through the amplifiers.
As it became obvious that the storm was not going to ease, aides said Obama would not make his speech. Instead, he climbed onto buses where the crowds had taken shelter to greet the drenched members of the public..." (source)