* WHAT. For the High Rip Current Risk, dangerous rip currents. For the first Coastal Flood Statement, up to one half foot of inundation above ground level expected in vulnerable areas near the waterfront and shoreline. For the second 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 Sunday evening. For the first Coastal Flood Statement, from 7 AM to 10 AM EDT this morning. For the second Coastal Flood Statement, this 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. * COASTAL FLOOD IMPACTS. Minor flooding in the more vulnerable locations near the waterfront and shoreline. Some roads and low lying properties including parking lots, parks, lawns, and homes and businesses with basements near the waterfront will experience minor flooding. * SWIMMING IMPACTS. Life-threatening swimming and surfing conditions and localized beach erosion. 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.