Some 700 houses were completely inundated by floods in eastern and western Japan and about 9,500 households in nine prefectures across the nation suffered power outages.
In post-analysis, the Japan Meteorological Agency (JMA) downgraded Talas from a minimal typhoon to a severe tropical storm.
[3] At midnight that day, the system became sufficiently well organized that the Japan Meteorological Agency (JMA) started tracking it as a tropical depression.
[4] On August 23, the system moved into an environment of low wind shear and warm sea surface temperatures prompting the JTWC to issue a Tropical Cyclone Formation Alert (TCFA) on it.
[6] Soon the system developed long and expansive convective banding along the eastern and south-western periphery of the broad low level circulation center, similar to a monsoonal depression.
This prompted the JTWC to change its forecast on the system, from turning west and interacting with Nanmadol, to continuously move north and intensify into a typhoon.
[11] Talas, being located in a very weak steering environment hardly moved in 24 hours and was effectively trapped between strong subtropical ridges and an anticyclone.
[13] Talas then moved into an environment favorable for slow development, with moist winds and significantly warm sea surface temperatures.
[18] On September 1, Talas developed a large annulus of nearly 110 nautical miles (205 km; 125 mi) in diameter with multiple weak circulations cyclonically rotating around a centroid within the center.
[19] Soon, Talas turned towards the Kansai region of Japan maintaining intensity with cloud tops warming around the expansive, nearly cloud-free 140 nautical miles (260 km; 160 mi) wide low level circulation center (LLCC).
[23] After making landfall over Aki, Japan early on September 3, Talas moved into an area of moderate wind shear (15–20 knots) along the western edge of a deep-layered subtropical ridge with a mid-latitude trough approaching from the northwest.
Also, the mid-latitude trough located to the northwest of the system started to weaken, which made the JTWC anticipate Talas to turn northwestward and accelerate as it enters the Sea of Japan.
On becoming exposed to wind shear and strong upper-level westerlies, Talas became grossly elongated to the northeast and convective banding became more shallow and fragmented.
The central convection became significantly eroded and was displaced to the north-east as Talas was exposed to a very strong wind shear of over 50 knots (95 km/h; 60 mph) that made the LLCC very distorted and difficult to pin-point.
Talas was embedded in a baroclinic zone and the JTWC anticipated an extratropical transition, which prompted them to issue their final warning on the system.
[32] Talas was expected to cause rainfall and strong winds for an unusually long period of time because of its slow movement.
I hope that I can find my wife soon to send off my family with my daughter.Talas poured record rainfall across the nation stranding thousands, turning towns into lakes and washed away cars, setting off mudslides.
[48] Ever since the typhoon approached land, Talas continuously dumped heavy rain over the Wakayama, Nara and Mie prefectures turning a large portion of the area to swamps.
Talas broke a record of 1,322 millimetres (52.0 in) rainfall that fell on the southern town of Takachiho in Miyazaki Prefecture in September 2005.
[52] On September 6, aid-laden helicopters landed in the hardest-hit areas while police, firefighters and soldiers started clearing roads and debris so that they could distribute food, medicine and other assistance.
[53] However, thousands of people remained isolated for a long time because of the bad conditions of the roads, that prevented rescue workers from quickly reaching the victims.
[55] Later the same day, death toll continued to rise and reached 54 after reports from the search and rescue operations listed more people as dead.