Weather alerts in Northern Mariana Islands

* WHAT...Southeast winds 25 to 35 mph with gusts up to 45 mph. * WHERE...Tinian and Saipan. * WHEN...Until 4 AM ChST Monday. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. * ADDITIONAL DETAILS...As Super Typhoon Champi (29W) continues moving away from the Marianas, southeast winds will remain elevated over Saipan and Tinian and lasting at least through early Monday morning.

What to do: Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution when driving on roads with no center barriers, as well as when passing high profile vehicles.

* WHAT...For the Coastal Flood Warning, significant coastal flooding. For the High Surf Warning, dangerously large breaking waves of 18 to 24 feet in the surf zone. * WHERE...Guam and Rota. * WHEN...Until 4 AM ChST Monday. * IMPACTS...Low lying property including homes, businesses, and some critical infrastructure may still be inundated. Some shoreline erosion will occur. Breaking waves can sweep people off jetties and docks, and into dangerous seas. Life-threatening swimming conditions and significant beach erosion can be expected. * ADDITIONAL DETAILS...South to southeast swells and elevated wind waves induced by Super Typhoon Champi to the west-southwest will continue life-threatening surf and significant coastal flooding at least through early Monday morning.

What to do: Everyone should remain out of the water due to life-threatening surf conditions. Stay off of jetties, piers, and other waterside infrastructure.

* WHAT...For the High Surf Advisory, large breaking waves of 10 to 14 feet in the surf zone. For the High Rip Current Risk, dangerous rip currents. * WHERE...East and south facing reefs of Tinian and Saipan. * WHEN...Until 4 AM ChST Monday. * IMPACTS...Dangerous swimming and surfing conditions and localized beach erosion. Rip currents can sweep even the best swimmers away from shore into deeper water. * ADDITIONAL DETAILS...As Super Typhoon Champi continues moving away from the Marianas, swells from the southeast have diminished enough for surf to drop below 15 FT and for coastal inundation to no longer be a concern. However, elevated surf and dangerous rip currents will continue along east and south facing reefs through tonight.

What to do: Rip currents will be life threatening. Inexperienced swimmers should remain out of the water due to dangerous surf conditions. Rip currents will be life threatening. If caught in a rip current, relax and float. Don't swim against the current. If able, swim in a direction following the shoreline. If unable to escape, face the shore and call or wave for help.