The storm slowly intensified Cause_change_of_strength into a Category 1 typhoon on the Saffir–Simpson hurricane wind scale , according to JTWC .

Fern peaked north of Yap on December 26 , with JTWC assessing winds of 150 km/h ( 90 mph ) , while the Regional Specialized Meteorological Center , Japan Meteorological Agency ( JMA ) assessed Testing peak winds of , just below typhoon strength .

Around the same time , the JTWC assessed Testing the storm Catastrophe to have been equivalent to a Category 1 hurricane .

Tropical Cyclone Cilla ( RSMC Nadi designation : 10F , JTWC designation : 13P ) was a tropical cyclone that brought Bringing minor damage Damaging to several islands in the South Pacific in January 2003 .

Severe Tropical Cyclone Catastrophe Glenda ( JTWC designation : 20S , also known as simply Cyclone Catastrophe Glenda ) of March 2006 was among the strongest tropical cyclones Catastrophe to threaten Western Australia , though it weakened Cause_change_of_strength considerably before landfall Arriving and moved Motion ashore in a lightly populated region .

Increased wind shear caused Causation the cyclone Catastrophe to rapidly weaken Cause_change_of_strength , and both BoM and JTWC discontinued Process_end advisories Warning on Gillian on 26 March .

Health officials in Bangladesh confirmed Check a deadly outbreak of diarrhoea on 29 Formation Alert being issued Statement early the next day by the JTWC as the low level circulation center had become Becoming stronger and more defined .

During the day Depression BOB02 continued to slowly intensify Expansion until early the next day when it was upgraded Cause_to_make_progress to a Deep Depression by RSMC New Delhi , and designated Deciding as Tropical Cyclone 02B by the JTWC .

Severe Tropical Cyclone Catastrophe Jasmine ( RSMC Nadi designation : 12F , JTWC designation : 10P ) was a powerful and long-lived annular tropical cyclone Catastrophe that affected Influence several countries , particularly Vanuatu and Tonga , over a 16-day span in February 2012 .

Severe Tropical Cyclone Catastrophe Daman ( RSMC Nadi designation 04F , JTWC designation 05P ) was the strongest cyclone Catastrophe of the 2007–08 South Pacific cyclone Catastrophe season .

The JTWC discontinued Process_end warnings Warning on December 4 , while the Japanese Meteorological Agency ( JMA ) continued to track Recording the storm until it crossed Motion_directional the International Date Line again on December 7 .

Severe Tropical Cyclone Erica ( RSMC Nadi designation : 10F , JTWC designation : 23P ) of March 2003 was a powerful cyclone Catastrophe that severely affected Influence New Caledonia and was considered the worst to affect Influence the country since Cyclone Beti .

The 2000 Sri Lanka cyclone Catastrophe ( IMD designation : BOB 06 JTWC designation : 04B ) was the strongest tropical cyclone Catastrophe to strike Destroying Sri Lanka since 1978 .

On May 7 both the JTWC and the Japan Meteorological Agency designated Choosing the disturbance as a tropical depression , while PAGASA named Name_conferral the depression Butchoy .

Later that day both the JMA and the JTWC upgraded Cause_change_of_position_on_a_scale the depression to a tropical storm with the JMA naming the storm Rammasun .

On May 9 both the JTWC and the JMA upgraded Cause_change_of_position_on_a_scale Rammasun to a typhoon .

The next day the JMA and the JTWC reported Reporting that Rammasun had reached Achieve its peak winds of 195 km/h ( 120 mph ) and 250 km/h ( 155 mph ) respectively , which made Causation Rammasun a Category 4 super typhoon on the Saffir-Simpson Hurricane Scale .

After reaching Achieve its peak intensity , Rammasun weakened Cause_change_of_strength and was downgraded Cause_change_of_position_on_a_scale to severe tropical storm on May 12 , before the JTWC declared Expressing_publicly it extratropical and issued Creating their final advisory .