Thunder Under a Blue Sky

Boom!!! That was the alarm clock, about 6:45 a.m.
Landry: What was that?
Me: I don't know.
Landry: Just thunder.
We tried to go back to sleep, but my sleepy eyes squinted at the sunlight coming through our window and a bright blue sky. "I don't think it's thunder." I rolled out of bed, went to talk to the cook downstairs, who pointed to the big cloud of an explosion outside _ a brown mushrooming cloud that dissipated as it rose into the sky over the mountains of Kabul.
Gunpowder explosion, officials said, in a poor part of Kabul. At least six were killed. Cause: unknown.