Typhoon Roke/Onyok 18w 2011 Satellite Animation

Typhoon Roke 18w 2011
http://2011pacifctyphoonseason.blogspot.com/
Highest Maximum sustained winds:217km/h
Lowest Pressure:940hpa
Duration:September 8-22
Category 4 Typhoon
History:On September 3, Tropical Storm Noru extended a trough of low pressure which slowly moved south west and developed into a Tropical wave(It was as if Tropical Storm Noru placed a seed which develop into this system!).On September 6 the system develop a circulation center and on September 7 the Typhoon Storm Watch upgraded the low as a Tropical disturbance, as it moved towards warmer waters.Late on September 8, the Typhoon Storm Watch and the JMA upgraded the disturbance to a tropical depression northeast of the Northern Mariana Islands, with sustained winds of 55km/h.Over the next two days, the system gradually drifted west and intensified slightly, prompting the JTWC to issue a Tropical Cyclone Formation Alert (TCFA) on it.Convection gradually consolidated the LLCC and the JTWC initiated advisories on the system on September 11, designating it with 18W.The next day, PAGASA assigned the name Onyok to the depression.The system was slowly moving west but started to change direction towards east,and at the same time, TD 18w's low level circulation center became exposed.But as it moved west again the low level circulation center wasn't exposed but it soon became exposed again 5 hours later.On September 13, The Typhoon Storm Watch and the JMA upgraded Tropical depression 18w to a tropical storm and named it Roke.Due to a Strong High pressure in the north, TS Roke moves south east.Roke soon drifted over the southern side of Minami-Daito, Japan on September 15.On September 16 the southern side of the system,as well as the remnants of a Tropical depression brought humid moist air from the south towards the the Circulation of the system and the system started to strengthen as well as increased cloud production.Early on September 17,TS Roke intensified further into a Severe Tropical Storm as well as absorbing the remnants of a Tropical depression(unnamed).On September 18,Roke unexpectedly moved south due to a slight Fujiwhara effect between Roke and Sonca,which later caused the storm to made a small cyclonic Loop.On September 19 the storm develop a weak slightly visible eye but quickly dissipated three hours later.In the evening of September 19, STS Roke intensified unexpectedly into a Category one typhoon and developed a 45 kilometers across medium eye, due to the fact that it was drifting into a patch of warmer waters which fueled the storm.(Read More at http://typhoonwatch2011.blogspot.com)

Category:

News & Politics

Tags:

• Typhoon
• Roke
• 18w
• 2011
• pacific
• typhoon
• season
• Satellite
• Animation
• Japan
• flooding
• damage
• storm
• Cyclone

[chunfu2]

Don't Forget to Comment and read the description