Slippery When Wet, Black and White Small 320×320 Medium 640×640 Large 1024×1024 Download TIFF Original 3000×3000 | (405.4 KB) Download EPS Vector 397.1 KB Description The Slippery When Wet sign may be used to warn that a slippery condition might exist. Keywords kadvisblwh, slippery road sign Galleries Advisory and Warning Signs, Motor Vehicles Source: Federal Highway Administration Manual on Uniform Traffic Control Devices for Streets and Highways, 2003 Edition (including 2004 and 2007 revisions) (Washington, DC: United States Department of Transportation, 2007)