The following is an Important Message from the National Weather service. The National Weather service in the San Francisco bay area issued a Flash Flood Warning for Sonoma County in western california, this includes the city of petaluma. From 540time a. M. Pacific standard time. And National Weather service Doppler Radar and automated rain gauge indicate sharp highs is producing flooding on the wildo grief and sand hill park. The indicated county, a Flash Flood Warning means that flooding is occurring or is umnent. The runoff from heavy rainfall will cause localized flooding of small creeks and streams as well as roadways under passes and low lying spots. Dont attempt to cross the water flowing or of unknown depth. Its important for campers and hikers to know where theyre relative to creeks, streams, or rivers that can be dangerous in heavy rains. Be particularly aware where many low water crossings can become killers. If flash flooding is quick, move up to Higher Ground to e scape flo