At COR 3, damaging winds of 39-57 mph are expected within 48 hours. Although the tropical depression does not currently have damaging winds, it is expected to intensify into a tropical storm by this evening, meaning tropical storm force winds are possible.
The tropical depression is about 545 miles southeast of Guam, 555 miles southeast of Rota and 595 miles south-southeast of Tinian and Saipan, with maximum sustained winds of 30 mph. It is expected to gradually strengthen, passing south of Guam Saturday afternoon as a tropical storm. The closest point of approach is forecast around 5 p.m. Saturday but inclement weather is expected before, during and after the storm makes its closest point of approach.
Scattered to numerous showers and isolated thunderstorms will develop through Saturday. East winds will increase to between 20 and 30 mph with gusts up to 40 mph in heavier showers Saturday and Saturday night. Any northward deviation of the current forecast track would bring stronger winds to Guam, particularly in the southern villages.
Winds and seas will become hazardous to small craft early Saturday morning. Surf is currently hazardous along west facing reefs. Surf could become hazardous along south and east facing reefs by Saturday afternoon.
For the Marianas, rain is expected to be heavy at times, causing ponding on roads and in low-lying areas Saturday through Sunday. Up to 2 to 4 inches of rain are possible through Sunday night, with locally higher amounts.
Don’t Wait – Prepare Now
With the uncertainty of exactly how close to Guam the disturbance will pass and the strength, it is advised to take precautionary actions now:
·Roll up carpets away from doors and windows
·Make lighting supplies easily accessible
·Unplug all appliances and ensure energy breakers are switched off once damaging winds approach
·Make sure family members know where the emergency preparedness kits are at; stock up on non-perishable food items and water for your household, flashlights, first-aid kits, batteries, matches or lighters, portable stove, toiletries, etc. Visit https://www.ready.gov/build-a-
·Secure important documents such as birth certificates, tax papers, and insurance documents and keep copies in a water-proof bag
·Cover beds and furniture with plastic to prevent water damage
·Stay up to date in the event there are changes in weather conditions
·Secure your home – Prepare shutters in case they need to be put up tomorrow morning
·Clear loose debris around your yard and store any items that may become airborne with heavy winds, before inclement weather arrives
·Take down canopies and tarps
·Take down any temporary signs, including those for political campaigns, advertisements, and any other wooden or loosely placed items as these have the ability to lift in heavy winds and cause damage to life and property
·Gas your vehicles and get fuel for your generators now while the weather is clear
Discuss your emergency plan with household members. Include pets as part of your plan.
Those living in areas prone to flooding should be prepared to take action:
· Clear drainage areas and un-block clogged storm drains in your area to minimize the chance of flooding
· Residents living near rivers and streams need to review plans for protecting properties
· Once heavy rains occur, avoid walking or driving through flood waters
· Just 6 inches of moving water can knock you down, and 2 feet of water can sweep your vehicle away
· If there is a chance of flash flooding, move immediately to higher ground
· If floodwaters rise around your car but the water is not moving, abandon the car and move to higher ground. Do not leave the car and enter moving water.
· Avoid camping, parking, or hiking along streams, rivers, and creeks during heavy rainfall. These areas can flood quickly and with little warning.
· Visit https://www.
Visit the following links for the latest advisory information:
·NWS Website: http://www.prh.noaa.
·NWS Facebook: https://www.
·GHS/OCD Website: https://ghs.guam.gov/
·GHS/OCD Facebook: https://www.
·Governor Calvo Facebook: https://www.
·Joint Region Marianas Facebook: https://www.
For more information, contact the GHS/OCD 24/7 watch desk at (671) 475-9600 or (671) 482-7019.