The Joint Typhoon Warning Center (JTWC) forecasts that both depressions 92W and 93W are producing a large area of unorganized showers and thunderstorms. Upper winds are not particularly favorable for development, but the two systems have a short chance of becoming tropical depressions in the short term as they remain in the region for the next few days. The JTWC assesses the chance of both depressions strengthening over the next 7 days at 30%.
According to Windy.com, at 7:00 a.m. on September 24, the center of low pressure 93W was at about 21.39 degrees north latitude, 110.18 degrees east longitude, central pressure 1,008hPa, 265.2km from Co To Island, Vietnam.
The JTWC is also monitoring a system called Area B northeast of the Philippine island of Luzon, with a new low pressure area expected to form later this week. The low pressure is developing as it moves slowly and erratically westward, and could become a tropical depression by September 29 as it approaches the Luzon Strait. The seven-day chance of it forming is 40%.
Additionally, in the eastern part of Guam and Rota, a weak low pressure system Invest 91W is producing showers. Upper level winds are not favorable for development and the likelihood of significant development of this system is very low as it moves west-northwest over the next few days. The 7-day chance of development is only 10%.
