Weather alerts in Northern Mariana Islands

...SUPER TYPHOON CHAMPI CONTINUES WEST, AWAY FROM GUAM WATERS... .NEW INFORMATION... None. .AREAS AFFECTED... This local statement provides important information and recommended actions for people in Guam and the Northern Marianas. .Watches/Warnings... A Typhoon Warning continues for Guam and Rota. Although tropical cyclone watches or warnings are not in effect for Tinian and Saipan, possible impacts from related hazards are still a concern. A Flood Watch is in effect for portions of Guam and the Northern Marianas. Please listen closely for any Flood Warnings that might be in effect for your area. Please check the latest public and marine forecasts for detailed information about additional hazards. .STORM INFORMATION... At 2 PM ChST...the center of Super Typhoon Champi (29W) was located near latitude 13.0N...longitude 142.6E. This was about 150 miles west of Guam. Storm motion was west, 260 degrees, at 12 mph. Storm intensity was 150 mph. .SITUATION OVERVIEW... Super Typhoon Champi continues to move generally westward with a slight southward turn over the last few hours, and a slight decrease in forward speed. The eye remains very small and compact, appearing to fill in with cloud cover in the latest visible satellite imagery, with a width of around 5 miles across. It looks to be going through an eyewall replacement cycle. GLD network data shows frequent lightning within the deep convection along the southern eyewall, which is beginning to exit radar range. Surface observations from Guam International Airport show strong sustained winds of 25 to 30 mph with frequent tropical storm-force gusts up to 60 mph. At Saipan, winds are fresh to strong with gusts to 35 mph.

What to do: Tropical Storm conditions were verified on Rota earlier this morning, and tropical storm-force gusts look to continue over the next few hours as Super Typhoon Champi pulls away. Remain alert and stay inside until the all-clear is given. Listen for possible flood warnings.

* WHAT...Flooding caused by excessive rainfall continues to be possible. * WHERE...Guam, Rota. * WHEN...Through late tonight. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Flooding may occur in poor drainage and urban areas. Storm drains and ditches may become clogged with debris. Extensive street flooding and flooding of creeks and rivers are possible. * ADDITIONAL DETAILS... - As Super Typhoon Champi (29W) continues to move west, away from the Marianas, outer bands around Champi will produce locally heavy rainfall tonight. Rota could receive 1 to 3 inches, and Guam might get 2 to 4 inches. - http://www.weather.gov/safety/flood

What to do: You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued.

* 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.