Tropical Storm Halong is strengthening east of the Marianas, but poses no threat to the CNMI. Tropical Depression 24W was upgraded to Tropical Storm Halong Sunday morning, and the National Weather Service in Guam expects Halong to keep moving east.
As of 7am yesterday, NWS located Halong 510 miles north-northwest of Pohnpei, 695 miles east of Saipan, and 760 miles east of Guam. Halong is moving northwest at 10 miles per hour with maximum sustained winds of 40 mph.
Halong will continue to strengthen and will likely become a typhoon in the next day or two. Halong will keep moving east of the Marianas, soon turning toward the north and then northeast, keeping away from the CNMI and Guam.
NWS expects the storm will likely generate a monsoon surge across the region this week, bringing rain and winds to western Micronesia and the Marianas. Furthermore, NWS weather models are still depicting a second disturbance within the monsoon pattern southeast of Guam by the middle of this week.
Based on information received from the NWS in Tiyan, Guam, and compiled at the CNMI Emergency Operations Center-State Warning Point early Sunday, the tropical disturbance developed north of Pohnpei over the last couple of days, and was the subject of a Tropical Cyclone Formation Alert by the Joint Typhoon Warning Center. That tropical disturbance was upgraded to a Tropical Depression early Sunday.
In other news, CNMI EOC reported at 9am yesterday of a 4.9-magnitude earthquake centered at 240 kilometers east-southeast of Pagan. EOC has not received any tsunami warnings or advisories from the Pacific Tsunami Warning Center.