Tomorrow.ioTomorrow.io THE ATMOSPHERE TODAY · EVENT← TODAY'S COVER
tropical

THE EASTERN PACIFIC — TWO AREAS AT 90 PERCENT, AND A THIRD RISING OFF HAWAII

On the board · September 20, 2026 →
BUILDING · September 20, 2026 · NO. 0920
THE STORM

Two storms that do not exist yet are near certain by midweek. EP99, about 400 mi south-south-west of Manzanillo, at 90 percent over 48 hours and 90 percent over 7 days, moving north, with the south-western and west-central Mexican coast advised to monitor. EP98, well south-west of Baja, also 90/90. The former TD Fifteen-E east-south-east of Hawaii is near 0 percent at 48 hours and 60 percent over 7 days. Up from 80/80 and 70/80.

THE RECORD

28 turning points on record since Aug 16 — the 8 most recent shown.

Sep 19↑ moved up the board
Sep 18▽ slipped down the board
Sep 17easing → building
Sep 15→ held
Sep 15▽ slipped down the board
Sep 15▽ designation Tropical Storm→Tropical Depression
Sep 13→ held
Sep 13→ held
CONNECTED

The tropical energy is in the Pacific — and both basins said so in advance.