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western pacificwestern pacific
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Post-Tropical Cyclone Sinlaku (04W) – Tropical Cyclone Advisory #23 (FINAL): 1500 UTC 19 April 2026

Post-Tropical Cyclone Sinlaku (04W) – Tropical Cyclone Advisory #23 (FINAL): 1500 UTC 19 April 2026

Sinlaku becomes a post-tropical cyclone over the cold waters of the west central Pacific. This is the last advisory.

Will Weaver
Will Weaver
western pacificwestern pacific
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Severe Tropical Storm Sinlaku (04W) – Tropical Cyclone Advisory #21: 1200 UTC 18 April 2026

Severe Tropical Storm Sinlaku (04W) – Tropical Cyclone Advisory #21: 1200 UTC 18 April 2026

Sinlaku weakens to a tropical storm. Expected to become post-tropical on Sunday.

Will Weaver
Will Weaver
western pacificwestern pacific
+1+1
Typhoon Sinlaku (04W) – Tropical Cyclone Advisory #19: 1200 UTC 17 April 2026

Typhoon Sinlaku (04W) – Tropical Cyclone Advisory #19: 1200 UTC 17 April 2026

Sinlaku slowly moving away from the northernmost Marianas.

Will Weaver
Will Weaver
western pacificwestern pacific
+1+1
Typhoon Sinlaku (04W) – Tropical Cyclone Advisory #17: 1200 UTC 16 April 2026

Typhoon Sinlaku (04W) – Tropical Cyclone Advisory #17: 1200 UTC 16 April 2026

Sinlaku finally moving away from the populated Northern Mariana Islands after relentlessly lashing Tinian and Saipan for over two days.

Will Weaver
Will Weaver
western pacificwestern pacific
+1+1
Typhoon Sinlaku (04W) – Tropical Cyclone Advisory #15: 1200 UTC 15 April 2026

Typhoon Sinlaku (04W) – Tropical Cyclone Advisory #15: 1200 UTC 15 April 2026

Typhoon conditions continuing on Tinian and Saipan as Sinlaku moves slowly away from the islands.

Will Weaver
Will Weaver
western pacificwestern pacific
+1+1
Typhoon Sinlaku (04W) – Tropical Cyclone Advisory #13: 1200 UTC 14 April 2026

Typhoon Sinlaku (04W) – Tropical Cyclone Advisory #13: 1200 UTC 14 April 2026

Eye of extremely dangerous Sinlaku passing directly over Tinian and Saipan. Extreme wind warning issued for those islands. This is a particularly dangerous situation!

Will Weaver
Will Weaver
western pacificwestern pacific
+1+1
Super Typhoon Sinlaku (04W) – Tropical Cyclone Advisory #11: 1200 UTC 13 April 2026

Super Typhoon Sinlaku (04W) – Tropical Cyclone Advisory #11: 1200 UTC 13 April 2026

Outer bands of Category 5 Sinlaku moving over Guam and the CNMI. Forecast to pass between Tinian and Saipan at or near Category 5 strength late Tuesday night. This is a particularly dangerous situation!

Will Weaver
Will Weaver
western pacificwestern pacific
+1+1
Super Typhoon Sinlaku (04W) – Tropical Cyclone Advisory #10: 0000 UTC 13 April 2026

Super Typhoon Sinlaku (04W) – Tropical Cyclone Advisory #10: 0000 UTC 13 April 2026

Potentially catastrophic Category 5 Sinlaku strengthens a little more while moving northwestward toward the Marianas. This is a particularly dangerous situation!

Will Weaver
Will Weaver
western pacificwestern pacific
+1+1
Super Typhoon Sinlaku (04W) – Tropical Cyclone Advisory #9: 1500 UTC 12 April 2026

Super Typhoon Sinlaku (04W) – Tropical Cyclone Advisory #9: 1500 UTC 12 April 2026

Sinlaku rapidly becomes a potentially catastrophic Category 5 super typhoon. Typhoon warnings issued for Rota, Tinian, and Saipan. This is a particularly dangerous situation!

Will Weaver
Will Weaver
western pacificwestern pacific
+1+1
Typhoon Sinlaku (04W) – Tropical Cyclone Advisory #8: 0000 UTC 12 April 2026

Typhoon Sinlaku (04W) – Tropical Cyclone Advisory #8: 0000 UTC 12 April 2026

Sinlaku explosively intensifying and now a Category 3 typhoon. Additional rapid intensification likely today.

Will Weaver
Will Weaver
western pacificwestern pacific
+1+1
Severe Tropical Storm Sinlaku (04W) – Tropical Cyclone Advisory #5: 1200 UTC 10 April 2026

Severe Tropical Storm Sinlaku (04W) – Tropical Cyclone Advisory #5: 1200 UTC 10 April 2026

Sinlaku continues to strengthen as it batters Chuuk with tropical storm conditions.

Will Weaver
Will Weaver
western pacificwestern pacific
+1+1
Tropical Depression 04W – Tropical Cyclone Advisory #3: 1200 UTC 9 April 2026

Tropical Depression 04W – Tropical Cyclone Advisory #3: 1200 UTC 9 April 2026

Tropical storm warnings and typhoon watches issued for portions of Chuuk State.

Will Weaver
Will Weaver
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