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western pacificwestern pacific
+1+1
Tropical Depression 13W (formerly 93W) – Tropical Cyclone Advisory #2: 0000 UTC 2 August 2025

Tropical Depression 13W (formerly 93W) – Tropical Cyclone Advisory #2: 0000 UTC 2 August 2025

Poorly organized Tropical Depression 13W moving northeastward over open waters. Not expected to be a threat to land.

Will Weaver
Will Weaver
western pacificwestern pacific
+1+1
Severe Tropical Storm Krosa (12W) – Tropical Cyclone Advisory #20: 0000 UTC 2 August 2025

Severe Tropical Storm Krosa (12W) – Tropical Cyclone Advisory #20: 0000 UTC 2 August 2025

Krosa moving northeastward away from Japan.

Will Weaver
Will Weaver
western pacificwestern pacific
+1+1
Tropical Depression (#93W) – Tropical Cyclone Advisory #1: 1200 UTC 1 August 2025

Tropical Depression (#93W) – Tropical Cyclone Advisory #1: 1200 UTC 1 August 2025

Tropical depression well to the east of Okinawa could become a tropical storm over the weekend. Not expected to be a threat to land.

Will Weaver
Will Weaver
western pacificwestern pacific
+1+1
Severe Tropical Storm Krosa (12W) – Tropical Cyclone Advisory #19: 1200 UTC 1 August 2025

Severe Tropical Storm Krosa (12W) – Tropical Cyclone Advisory #19: 1200 UTC 1 August 2025

Outer rainbands of Krosa moving over southeastern Honshu.

Will Weaver
Will Weaver
western pacificwestern pacific
+1+1
Remnants of Co-May (11W) – Tropical Cyclone Advisory #18 (FINAL): 0000 UTC 1 August 2025

Remnants of Co-May (11W) – Tropical Cyclone Advisory #18 (FINAL): 0000 UTC 1 August 2025

After a long and strange journey Co-May is degenerating into a broad area of low pressure. This is the last advisory. Again.

Will Weaver
Will Weaver
western pacificwestern pacific
+1+1
Severe Tropical Storm Krosa (12W) – Tropical Cyclone Advisory #18: 0000 UTC 1 August 2025

Severe Tropical Storm Krosa (12W) – Tropical Cyclone Advisory #18: 0000 UTC 1 August 2025

Krosa moving northward and getting better organized.

Will Weaver
Will Weaver
tropical weather outlooktropical weather outlook
+2+2
WPAC Tropical Weather Outlook - 7/31/25

WPAC Tropical Weather Outlook - 7/31/25

New tropical depression forms out of the massive monsoon gyre southeast of Okinawa. Co-May and Krosa are leaving the scene, while Iona will cross over from the Central Pacific this weekend.

Will Weaver
Will Weaver
western pacificwestern pacific
+1+1
Severe Tropical Storm Krosa (12W) – Tropical Cyclone Advisory #17: 1200 UTC 31 July 2025

Severe Tropical Storm Krosa (12W) – Tropical Cyclone Advisory #17: 1200 UTC 31 July 2025

Krosa drifting north-northwestward with no change in strength.

Will Weaver
Will Weaver
western pacificwestern pacific
+1+1
Tropical Depression Co-May (#11W) – Tropical Cyclone Advisory #17: 1200 UTC 31 July 2025

Tropical Depression Co-May (#11W) – Tropical Cyclone Advisory #17: 1200 UTC 31 July 2025

Co-May still hanging on as a tropical depression well inland.

Will Weaver
Will Weaver
western pacificwestern pacific
+1+1
Severe Tropical Storm Krosa (12W) – Tropical Cyclone Advisory #16: 0000 UTC 31 July 2025

Severe Tropical Storm Krosa (12W) – Tropical Cyclone Advisory #16: 0000 UTC 31 July 2025

Krosa finally on the move.

Will Weaver
Will Weaver
western pacificwestern pacific
+1+1
Tropical Depression Co-May (11W) – Tropical Cyclone Advisory #16: 0000 UTC 31 July 2025

Tropical Depression Co-May (11W) – Tropical Cyclone Advisory #16: 0000 UTC 31 July 2025

Co-May’s long and strange journey is nearly at an end.

Will Weaver
Will Weaver
western pacificwestern pacific
+1+1
Severe Tropical Storm Krosa (#12W) – Tropical Cyclone Advisory #15: 0000 UTC 30 July 2025

Severe Tropical Storm Krosa (#12W) – Tropical Cyclone Advisory #15: 0000 UTC 30 July 2025

Krosa strengthens but still moving very, very slowly.

Will Weaver
Will Weaver
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