Issued (0030 UTC) 830am PhT 051715
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Super Typhoon Dolphin is beginning to show signs of weakening after peaking earlier this morning. The eye of Dolphin was last located approximately 760km northwest of Guam or about 800km south southwest of Iwo To (Iwo Jima) in the Ogasawara Islands of Japan. Maximum sustained winds are at 240kph with gusts of up to 295kph making Dolphin a Category 4 Super Typhoon. Dolphin is moving northwestward at 15kph.
IR Image from NRLMRY
Dolphin rapidly intensified into a Category 5 Super Typhoon this morning but has since weakened as it starts to move into unfavorable region of the Pacific. The eye is still present but is beginning to be ragged. Furthermore, convective activity has also weakened and is becoming more asymmetrical. Dolphin should continue this slow weakening trend as it moves further north.
Super Typhoon Dolphin is now rounding the western periphery of the subtropical ridge. It will continue turning to the north and eventually to the northeast. It is forecast to move near the Ogasawara Islands of Japan by Tuesday, bringing winds, rains, and high waves across the region. Dolphin is forecast to eventually become an extra-tropical cyclone by Thursday as it moves across the North Pacific.
We'll have another update later today.