Weather alerts in Guam

...TROPICAL STORM CHAMPI INTENSIFYING AND MOVING WEST TOWARDS THE MARIANAS... ...CHAMPI LIKELY TO MOVE NEAR GUAM AS A TYPHOON... .NEW INFORMATION... Guam was placed in Condition of Readiness 2 as of 1 PM ChST. .AREAS AFFECTED... This local statement provides information and recommended actions for people on Guam and on Rota, Tinian and Saipan in the Northern Marianas. .Watches/Warnings... A Typhoon Warning continues for Guam and Rota. A Tropical storm warning and a Typhoon Watch continue for Tinian and Saipan. A Flood Watch is in effect for all 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 8 PM ChST...the center of Tropical Storm Champi (29W) was located near latitude 11.6N...longitude 152.1E. This was about 510 miles east-southeast of Guam. Storm motion was west, 275 degrees, at 13 mph. Storm intensity was 60 mph. .SITUATION OVERVIEW... TS Champi continues to head toward Guam. Along the way, Rota will be affected by lesser but still damaging winds toward the outside of Champi. Tinian and Saipan will be just grazed by the edge. .PRECAUTIONARY/PREPAREDNESS ACTIONS...

What to do: Make the final preparations to protect life and property. Rush to completion the hardening of your home or business by closing shutters and bracing garage doors. If evacuating, leave as soon as possible. Guard against being stuck out on roadways when dangerous winds and heavy rains arrive. Again, do not stay in a metal roof or container home. Remember, pets are not allowed in most official shelters, so check ahead with your intended shelter. If staying in a home, turn the refrigerator to maximum cold and keep it closed. Turn off propane tanks and unplug small appliances. Fill the bathtub with water in case the tap water becomes unavailable after the storm. This is for cleaning and flushing purposes. Do not drink it.

* WHAT...Flooding caused by excessive rainfall continues to be possible. * WHERE...Guam, Rota, Saipan and Tinian. * WHEN...Through Sunday afternoon. * 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... - Tropical Storm Champi is approaching the Marianas and will bring torrential rain Saturday night and Sunday at least. Total rainfall accumulations of 12 to 20 inches are possible for Guam, 10 to 18 inches for Rota and 8 to 12 inches for Tinian and Saipan. This could cause flooding problems in poor drainage and flood prone areas. - 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 High Surf Warning, large, hazardous breaking waves of 7 to 9 feet Saturday afternoon will become dangerous, building to as high as 35 feet for Guam, 25 feet for Rota and 20 feet for Tinian and Saipan. For the Coastal Flood Watch, significant coastal flooding possible. * WHERE...For the High Surf Warning, initially east facing reefs of Guam, Rota, Tinian, and Saipan; spreading to all reefs through Sunday afternoon. The Coastal Flood Watch is also for all reefs of the Marianas. * WHEN...For the High Surf Warning, from 5 PM Saturday to 4 AM ChST Monday. For the Coastal Flood Watch, from Saturday afternoon through late Sunday night. * IMPACTS...Numerous roads may be closed. Low lying property including homes, businesses, and some critical infrastructure may be inundated. Some shoreline erosion may 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. Coastal inundation of 5 to 7 feet for Guam, 2 to 4 feet for Rota and 1 to 3 feet for Tinian and Saipan is possible along with coastal flooding and beach erosion. * ADDITIONAL DETAILS...As TS Champi approaches the Marianas, surf conditions are expected to deteriorate rapidly, with surf reaching 9 feet Saturday afternoon, building to dangerous/deadly levels through Saturday night.

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 Warning, large, hazardous breaking waves of 7 to 9 feet Saturday afternoon will become dangerous, building to as high as 35 feet for Guam, 25 feet for Rota and 20 feet for Tinian and Saipan. For the Coastal Flood Watch, significant coastal flooding possible. * WHERE...For the High Surf Warning, initially east facing reefs of Guam, Rota, Tinian, and Saipan; spreading to all reefs through Sunday afternoon. The Coastal Flood Watch is also for all reefs of the Marianas. * WHEN...For the High Surf Warning, from 5 PM Saturday to 4 AM ChST Monday. For the Coastal Flood Watch, from Saturday afternoon through late Sunday night. * IMPACTS...Numerous roads may be closed. Low lying property including homes, businesses, and some critical infrastructure may be inundated. Some shoreline erosion may 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. Coastal inundation of 5 to 7 feet for Guam, 2 to 4 feet for Rota and 1 to 3 feet for Tinian and Saipan is possible along with coastal flooding and beach erosion. * ADDITIONAL DETAILS...As TS Champi approaches the Marianas, surf conditions are expected to deteriorate rapidly, with surf reaching 9 feet Saturday afternoon, building to dangerous/deadly levels through Saturday night.

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.

ESFGUM This Hydrologic Outlook is for Guam, Rota, Tinian, and Saipan. Invest 96W is still a broad, disorganized disturbance located about 300 miles north of Kosrae. Ensemble model guidance continues to show a passage anywhere between south of Guam to north of Saipan as a tropical storm or typhoon. Uncertainty is still high regarding timing, location, and intensity, but the potential for locally heavy rainfall and flooding continues to increase approaching this weekend. This is expected to produce 5 to 8 inches of rainfall between Saturday and Monday, with localized amounts up to 12 inches possible. As showers are likely to persist, consistent rainfall is likely to saturate the soils enough to increase chance for mudslides. Residents on these islands need to closely monitor this developing situation as flood watches, advisories and flash flood warnings could be issued later this weekend. If living near streams and rivers, prepare to move items away from stream and river banks. Make sure storm drains nearby are not clogged, especially If living at low-lying areas.