令和8年9月17日

#台風25号
#Dujuan
24W
#TropicalTidbits

It's upgraded to Tropical Storm #Dujuan, typhoon later. No big change in track forecast, but could be more slow when it recurves this weekend.

台風25号 ドゥージェン Dujuan 発生 2026/09/17 am~ Ventusky.com による4予測（~06z版のGFS＋ECMWF＋ICON＋GEM）比較 weather-gpv.info による各国進路予測。シルバーウィーク台風 #台風25号 #Dujuan 発生。当初の九州直撃予測が昨夜から関東指向に、関東直撃か東岸指向か？

Right now, JTWC has #Dujuan #24W as a 30 kt tropical depression, while JMA has it as a 35 kt tropical storm.

If the structure is any indication, it may be quite a bit stronger. There's been a partial eyewall feature present for quite some time now.

Tropical Storm #Dujuan #24W – Tropical Cyclone Advisory #5: 1200 UTC 16 September 2026: Depression strengthens into Tropical Storm Dujuan. Now forecast to recurve just west of Iwo Jima.
willweatherrva.beehiiv.com/p/tropical-s...

Tropical Storm #Dujuan has formed east of the #Mariana Islands & will pass near #Japan's Iwo Islands Friday night before brushing southeast #Honshu with heavy rain & gusty winds later Sunday & Monday, local time.

A tropical depression is passing east of #Saipan & will become TS #Dujuan in the next day or so. The storm will pass near #Japan's Iwo Islands Friday night before hook northeast & brushing southeast #Honshu later Sunday & Monday, local time.

The tropical depression will strengthen to TS #Dujuan as it passes east of the #Mariana Islands over the next day or so. Dujuan can become a typhoon by the time it passes near #Japan's Iwo Islands late Friday, then can impact southern Japan early next week.

Additional rain, some heavy, is likely in southern #Japan, especially central & southern #Honshu from Tuesday into Thursday, local time. This rain can lead to more flooding in the area. Brewing cyclone #Dujuan near the Mariana Islands can impact southern Japan early next week.