Typhoon Francisco (2013)
|This section is outdated. (December 2013)|
Francisco at peak intensity on October 19, 2013
|Formed||October 15, 2013|
|Dissipated||October 27, 2013|
|(extratropical after October 26, 2013)|
|Highest winds||10-minute sustained:
195 km/h (120 mph)
260 km/h (160 mph)
|Lowest pressure||920 mbar (hPa); 27.17 inHg|
|Areas affected||Guam, Ryukyu Islands, Japan|
|Part of the 2013 Pacific typhoon season|
Typhoon Francisco, (international designation: 1327, JTWC designation: 26W, PAGASA name: Urduja) is one of the two storms which became a Category 5 typhoon during October 25. It is the 25th named storm and the 10th typhoon of the 2013 Pacific typhoon season. The storm reached peak intensity on October 19–20. Typhoon Francisco is also one of the storms that underwent rapid deepening.
During its lifecycle, Francisco started of as a tropical disturbance which was enhanced by Typhoon Wipha during October 13. It became Tropical Storm Francisco on October 16 and rapidly a Category 1 typhoon on October 17. Starting that day, Francisco underwent rapid deepening of 65 millibars in about exactly 24 hours. It rapidly weakened to a severe tropical storm on October 21 and a tropical storm on October 22. It became extratropical and fully dissipated on October 27.
A cluster of thunderstorms formed to a tropical disturbance on October 13, which was been enhanced by Typhoon Wipha. It slowly organized as it moved southwest. Favorable conditions of becoming a tropical depression in the next 24 hours occurred by deep convection becoming more intense. It weakened a bit on October 14 as it moved again towards warm waters.
On October 15, the JMA reported that a tropical depression had developed about 465 km (290 mi) to the northeast of Hagåtña, Guam. During that day the depression gradually developed further before later that day the JTWC designated it as Tropical Depression 26W. It was subsequently named Francisco by the JMA as it very rapidly became a Severe Tropical Storm early on October 17.
Explosive intensification occurred which dropped about 65 millibars in 1 day. As Francisco finished the rapid deepening phase, it evolved to a category 5 super typhoon late on October 19 and reached peak intensity early later that day. It stayed in that intensity on October 20, until Francisco slowly weakened as it underwent an eyewall replacement cycle. At noon on October 21, Typhoon Francisco rapidly weakened to a Category 3 typhoon and became an annular typhoon. Very early on October 22, Francisco entered the Philippine area of responsibility and it was given the name Urduja, as convection around Francisco started to weaken later that day. 
- "JMA WWJP25 Warning and Summary October 15, 2013 06z". Japan Meteorological Agency. October 15, 2013. Archived from the original on October 16, 2013. Retrieved October 26, 2013.
- Joint Typhoon Warning Center (October 15, 2013). "Tropical Storm 26W Warning 1". United States Navy, United States Air Force. Archived from the original on October 16, 2013. Retrieved October 26, 2013.
- "New tropical storm 26W now named Francisco heading for Japan". Retrieved October 16, 2013.
- "Tropical Storm (26W) Francisco 250900Z near 29.4N 134.0E, moving NE at 15 knots (JTWC) Heavy rain expected across Japan". Goaty's News. Retrieved October 17, 2013.
- "All eyes on Super Typhoon Francisco, It Iis strengthening to Cat 5 and headed to Japan!". Retrieved October 19, 2013.
- "Pagasa warns vs sea travel as Urduja maintains strength". JK/Sunnex. Retrieved October 22, 2013.