For Immediate Release
July 4, 2018
2 p.m.
Tropical Depression 10W Continues Approach Toward the Marianas; Practice Caution on Roadways
At 2 p.m., the National Weather Service (NWS), Weather Forecast Office Guam, issued an updated advisory for Tropical Depression 10W.
Watches and Warnings:
A tropical storm warning is remains in effect for Guam and Rota, meaning damaging winds of 39 mph or more are expected tonight.
A tropical storm watch remains in effect for Tinian and Saipan, meaning damaging winds of 39 mph or more, are possible within 24 to 36 hours.
As of 1 p.m., Tropical Depression 10W was located 11.9 degrees north latitude and 146.1 east longitude, about 140 miles southeast of Guam and 225 miles south of Saipan.
Guam remains in Condition of Readiness 4 at this time.
Closest Point of Approach
The current forecast track has Tropical Depression 10W passing near or just south of Guam at midnight tonightinto early Thursday morning with damaging winds between 40 and 45 mph and gusts up to 50 mph in heavier showers at the closest point of approach. Worst conditions are expected early Thursday morning, as the tropical depression leaves the area.
Rainfall amounts between 4 and 6 inches are possible, with a potential for flash flooding.
Outdoor Precautions
As winds and rains increase through the evening, residents and visitors are advised to practice extreme caution if traveling on the roadways is necessary. Allow enough braking distance between cars to avoid any collisions and drive cautiously, being mindful of flooded roadways. Avoid outdoor activities such as hiking.
The Chamorro Village Wednesday Night Market will remain open this evening until 8 p.m. Vendors with pop-up canopies or tents will not be setting up due to the anticipated heavy weather conditions. The Chamorro Village businesses and vendors occupying the festival huts will be open for the night market. For additional information, contact the Chamorro Village Office at 475-0377 or Jeffrey San Nicolas at 864-5133.
Mariners should make all necessary preparations to return to port, seek safe harbor and secure their craft. Dangerous rip currents are expected, along with 10 – 12 feet of open ocean and 8 – 10 feet of surf.
The Offices of Guam Homeland Security and Civil Defense (GHS/OCD) advise the community to make last minute preparations before the winds and rains increase through the evening:
• Store any items that may become airborne with heavy wind, including canopies and children’s outdoors toys.
• Stay up to date with the latest information. The storm track or intensity may change and additional advisories may be issued.
• Locate or prepare your emergency preparedness kits for your household.
• Gas your vehicles and get fuel for your generators.
• Stay up to date in the event there are changes with or updates to changes in Conditions of Readiness.
• Secure outdoor pets in a safe location either indoors or inside the garage.
GHS/OCD, working with the NWS, will continue to monitor the system and provide updates. Monitor the latest advisory information through the following sites:
· NWS Website:
· NWS Facebook:
· GHS/OCD Website:
· GHS/OCD Facebook:
· Governor Eddie Baza Calvo Facebook:
For more information, contact GHS/OCD Public Information Officer, Jenna G. Blas at (671) 489-2540 or via email at or contact the GHS/OCD watch desk at (671) 478-0290.

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