* WHAT...For the High Rip Current Risk, dangerous rip currents. For the Coastal Flood Statement, up to one half foot of inundation above ground level expected in vulnerable areas near the waterfront and shoreline. * WHERE...Southern Nassau County. * WHEN...For the High Rip Current Risk, through Wednesday evening. For the Coastal Flood Statement, from Wednesday afternoon through Wednesday evening. * IMPACTS...Brief minor flooding of the more vulnerable locations near the waterfront and shoreline. Life- threatening rip currents are likely for all people entering the surf zone. Anyone visiting the beaches should stay out of the surf. Rip currents can sweep even the best swimmers away from shore into deeper water. * ADDITIONAL DETAILS...The high rip current risk is expected to persist through late week. Do not drive through flooded roadways. If you enter the surf zone, always have a flotation device with you and swim near a lifeguard. If caught in a rip current, relax and float, and do not swim against the current. If able, swim in a direction following the shoreline. If unable to escape, face the shore and yell or wave for help.