Volunteers can sign up for two-hour shifts at the eighth annual event on Dec. 13, and may be asked to fill sandbags or assist residents who need help getting the bags home.
The city's yellow sandbagging machine will be used at the event, and volunteers will be given gloves, hardhats and safety goggles.
Palo Alto emergency manager Barbara Cimino said volunteers filled 4,000 bags at last year's Sandbag Saturday.
Certain areas of the city are prone to flooding, particularly near creeks, Cimino said.
"We suffered significant damage in the 1998 El Nino storm," Cimino said. "Since that time we've been trying to get neighbors to prepare their houses before the storm hits."
Sandbag Saturday will take place Dec. 13 at the Municipal Services Center at 3201 E. Bayshore Road from 10 a.m. to 4 p.m.
Shifts are from 10 a.m. to noon; noon to 2 p.m.; and 2 p.m. to 4 p.m. Volunteers can sign up to work one or more.
Those interested can call Barbara Cimino at (650) 617-3164.