Drivers on the Nassau Expressway in Lawrence travel with caution...

Drivers on the Nassau Expressway in Lawrence travel with caution as heavy morning rains have caused flooding. (May 17, 2011) Credit: Jim Staubitser

Heavy rainfall could cause coastal flooding across southeastern Nassau and Suffolk counties, the National Weather Service said Tuesday morning in an urban flood advisory.

The hazardous weather advisory expected rain to fall at rates of 2 inches per hour as the Upton-based service tracked a morning storm that extended "from Lindenhurst to 14 miles southeast of Robert Moses State Park to 35 miles south of Center Moriches," it said in the advisory.

The service warned of "minor flooding in poor drainage areas" as a result of the heavy rainfall. Water also is likely to collect on roads, the service said.

The flood advisory lasts until 12:30 p.m., the service said.

NewsdayTV's Doug Geed is heading 'Out East' to showcase the ultimate local spots you need to explore. Credit: Randee Daddona, Michael A. Rupolo Sr.

Out East Show: Visit The Shamrock evergreen maze, Sannino Vineyard, Seven Ponds Orchard and the Warrior Ranch Foundation NewsdayTV's Doug Geed is heading 'Out East' to showcase the ultimate local spots you need to explore.

NewsdayTV's Doug Geed is heading 'Out East' to showcase the ultimate local spots you need to explore. Credit: Randee Daddona, Michael A. Rupolo Sr.

Out East Show: Visit The Shamrock evergreen maze, Sannino Vineyard, Seven Ponds Orchard and the Warrior Ranch Foundation NewsdayTV's Doug Geed is heading 'Out East' to showcase the ultimate local spots you need to explore.

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