Weather events

It was summertime, but no one seemed surprised by the patchy snow all over Rebsamen Park Golf Course.
Rock stood in several inches that had been swept from the number-six tee box, and noticed that one of the golfers in an approaching group was a young sportswriter from the Arkanasas Democrat-Gazette. He couldn't remember the man's name, but they spoke affably.
Later they were in the clubhouse, seated at a table in the grill, when a tremendous storm blew in. High winds blew rain horizontally past the large picture window. Rock looked straight up through a large skylight in the ceiling and saw distinct patterns in the dark gray overcast, each sharply outlined in random shapes, like counties on a state map. Then he saw patterns of small numbers, which looked as if they had faded into the storm from a bar code.
"What is that?" the sportswriter said.
"I don't know," Rock said. "I've never seen anything like it."