Update, July 25, 11 a.m.:

As of 11 a.m., career and volunteer swiftwater teams have responded to 32 water-related incidents since unusually heavy rains began last Saturday.

The central and western portions of the county are most affected by this weather system. The latest calls for service -- mostly involving vehicles stuck in water -- occurred at Bentley Road and the NCR Trail, 21120; Kratz Lane and Ridge Road, 21244; Falls Road and Newstead Lane, 21209; 11000 block York Rd., 21030; and 1300 block Wiseburg Rd., 21161.

No injuries have been reported.

National Weather Service flood warnings remain in effect through 4 p.m. today. Do not drive through standing water, avoid flood-prone areas and stay away from swollen creeks and streams.

Original release:

As of 11 a.m. today, swiftwater teams from the Swiftwater incident at Stevenson and Hillside roads, Pikesville.Texas Fire Station and two volunteer companies have responded to 27 incidents related to the unusually heavy rains that began Saturday.

The National Weather Service estimates that four to eight inches have fallen across our region since then. Radar indicates significant moisture heading in a northerly direction that will add to those totals; two to three additional inches are forecast over the next two days.

Most of the water-related incidents occurred on the west side of the County: three in the Cockeysville area, eight in Pikesville, three in Owings Mills, five in Halethorpe and six in Woodlawn. Two incidents occurred in the Dundalk area.

Fifteen of the 27 calls involved rescues or assists -- situations where victims needed first responders' help in getting to safety. No serious injures have been reported.

Swiftwater teams are located at the Texas Fire Station and the Kingsville and Arbutus volunteer companies.

"Turn Around, Don't Drown"

All but one of the 27 water-related calls involve vehicles trapped in floodwaters.

Motorists should use extreme caution when driving in these conditions. Because the ground is saturated, heavy rains will run off and flood roadways. Flash flooding -- which occurs suddenly -- is particularly dangerous. Do not attempt to drive through floodwaters; turn around, don't drown.

Swiftwater rescue, Gwynn Oak areaNighttime conditions are particularly hazardous because flooded roads are difficult to see. Motorists can find themselves trapped in water that they didn't realize was there.

Avoid traveling at night, if possible. Avoid low-lying routes and routes that involve bridges; streams are swollen, and in these conditions waters can rise to bridge level.

Pedestrians should avoid walking through floodwaters and stay away from streams and creeks.