Offshore Weather Services (OWS) Tropical Cyclone Season Outlook for 2018 indicates the expected number of tropical cyclones (TC) over the NW Pacific region is 24, which is close to the long term (1970‐2016) average. The tropical cyclones are expected to be of slightly above average intensity with Accumulated Cyclone Energy (ACE) 113% of normal.
The first 3 months of 2018 have seen negative conditions over the central Pacific, close to the La Nina threshold (‐0.8). The overwhelming majority of CGCM models show the NINO3.4 anomaly increasing during the next few months with the model average becoming positive around July. The average then continues to increase till December but remains below the El Niño threshold.
For more details of the 2018 Northwest Pacific Tropical Cyclone Season Outlook, please click the link below:
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