A water mass that forms between the Gulf Stream and the continental shelf in the northwestern Atlantic Ocean. It is isolated by the Stream from contact with oceanic water masses in its depth range and therefore forms via interactions among shelf water, water from the Labrador Current, and water from the Gulf Stream. The Slope Water thus formed extends over the upper 1000 m of the water column north of Cape Hatteras along the continental rise and has a nearly linear T-S curve similar to that evinced by North Atlantic Central Water (NACW). The T-S curve typically extends from 21° C-36.0 to 15° C-35.1. Slope Water is intermittently transported by cyclonic rings across the Gulf Stream and into the Sargasso Sea.