Issued (2130 UTC) 530am PhT 070813
A new Tropical Depression has formed in the Western Pacific. This new system--TD 07W--is currently moving near the Northern Mariana Islands. It was last located approximately 650km north of Guam or about 450km north of Saipan. Maximum sustained winds are at 55kph with gusts of up to 75kph. TD 07W is currently moving westward at 20kph.
IR Image from NRLMRY
Latest satellite image shows a quickly developing tropical cyclone with good organization and strong convective activity. Microwave image also shows improving banding wrapping around the storm's low-level circulation center.
So far, Tropical Depression 07W is impacting the northern portions of the Marianas Islands. Guam and Saipan are mostly dry right now although gusty winds and on and off rain showers may impact the said islands later today. We're not really expecting stormy conditions to occur due to the distance of 07W especially from Guam.
Tropical Depression 07W will continue to move westward under the influence of the subtropical ridge currently anchored just south of Japan. The system will continue moving in an area of very favorably environment which should allow it to intensify steadily over the next few days. We expect TD 07W to become a Tropical Storm as early as tonight and could even become a Typhoon by as early as Thursday. Computer models are generally in good agreement with regards to the intensification and even with the track. Right now, projections take 07W possibly towards Taiwan by as early as Friday.
We'll have more updates later today.