Issued (03 UTC) 11am PhT 051315
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Dophin (07W) has rapidly intensified this morning and is now a Category 1 Typhoon. The eye of Typhoon Dolphin was last located approximately 460km northwest of Pohnpei or about 1,240km east southeast of Guam. Maximum sustained winds are now at 120kph with gusts of up to 150kph. Typhoon Dolphin is moving westward at 10kph.
The National Weather Service has now issued a Typhoon Watch for Guam and Rota. The agency is advising people of the potential for typhoon-force winds within the next 48 hours. Residents are advised to start preparing for the incoming typhoon and should start stocking up on supplies, food, and water. Please consult with your local officials for the latest warnings for your area.
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IR Image from NRLMRY
Latest satellite image shows a very small eye has appeared surrounded by increasingly robust convective activity. Dolphin is intensifying at a quicker pace now that it is moving in an area that is more conducive for tropical cyclone development. Dolphin is expected to intensify even further in the next 2 to 3 days.
Based on the current forecast tracks from different agencies, along with the latest computer model outputs, Typhoon Dolphin is expected to move generally west northwestward in the next 2 to 3 days. The chances of Guam and parts of the Mariana Islands seeing at least tropical storm-force conditions are also increasing. Expect stormy conditions to start affecting Guam and nearby islands by Friday morning and lasting into the evening hours. Strong winds, heavy rains, and high waves are possible in the region in the coming days.
We'll have another update later tonight.