The National Weather Service (NWS) Guam Weather Forecast Office continues to monitor Invest Area 90W. As of 4 a.m., 90W was located near 9.2 degrees north latitude and 152.4 degrees east longitude, about 80 miles north of Chuuk, 570 miles east-southeast of Guam, moving northwest at 6 mph, with maximum sustained winds of 18-23 mph. It is expected to maintain this general course with an increase in forward speed in the coming days as it steadily intensifies.
What to Expect
Current model guidance shows a more likely scenario of 90W, possibly an intensifying tropical storm, passing south of Guam. However, this track could change with a southward or northward shift. There remains a small possibility of the system shifting northward, over Guam or through the Marianas, bringing stronger winds and heavier rains.
Fair, breezy weather will continue for the next couple of days. The Marianas should expect increasing showers, thunderstorms, and gusty winds, developing late Saturday and continuing into early next week. The heaviest rainfall and possible onset of damaging winds of 39mph are anticipated more Sunday night into early Tuesday.
Preparedness
Residents and visitors are advised to take the following precautionary actions:
- Those living in flood-prone areas should prepare to take action such as clearing drainage areas and unblocking storm drains to minimize the potential for flooding;
- Stay up to date with the latest information;
- Clear loose debris around your yard and prepare to secure any items, such as tents and canopies, that could become airborne with heavy winds, before inclement weather arrives;
Secure or be prepared to take down signs such as campaign signs
- Have an emergency kit prepared: Store enough food and water for your household for 7-10 days. Include medication, disinfectant supplies and pet supplies;
- Review your emergency plan: If you do not have a plan, learn how to create an emergency plan; Have plans for your family members and pets. If you are a person with disabilities or a caregiver for elderly, you may need to take extra steps to plan for those additional needs.
Building easterly swell will continue to maintain a high risk of rip currents along east facing reefs of the Marianas into the weekend. As the intensifying tropical disturbance, Invest 90W, passes near the Marianas, swells will continue to bring elevated surf along east and potentially south facing reefs during the weekend.
Advisories in Effect:
- High Risk of Rip Currents for Guam, Rota, Tinian, and Saipan through Friday afternoon.
- Small Craft Advisory for Guam, Rota, Tinian, and Saipan coastal waters (winds 15–25 kt; seas 8–11 ft), currently through 4 p.m. Friday.
For the latest advisory information, visit:
· NWS Website: https://www.weather.gov/gum/
· NWS Facebook: https://www.facebook.com/NWSGuam/
· GHS/OCD Website: https://ghs.guam.gov/
· GHS/OCD Facebook: https://www.facebook.com/GHSOCD/
For more information, contact Public Information Officer Jenna Blas at (671) 475-9600 or via email at jenna.g.blas@ghs.guam.gov.