Weak storm over Yucaipa

Steve Vanderburg, a meteorologist with the National Weather Service in San Diego, said rain Tuesday in the Yucaipa and Oak Glenn area does not appear to be a large storm system.

Vanderburg said a large, impressive thunderstorm system is over the Crestline and Running Springs area today, but he called the storms around Yucaipa and Oak Glen "pretty weak."

The service was forecasting a 20 percent chance of thunderstorms Tuesday afternoon and evening. Vanderburg said the storm could help firefighters by raising humidity levels.

"When it gets cooler and more humid the firefighters can be more
aggressive," Vanderburg said. However, the storms can also bring erratic, gusty winds that could fan the flames and make battling the fire more difficult, he added.