ZCZC HFOTWOCP ALL
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Special Tropical Weather Outlook
NWS Central Pacific Hurricane Center Honolulu HI
Issued by NWS National Hurricane Center Miami FL
1110 PM HST Sun Jul 27 2025

Special outlook issued to include a recently formed area of low
pressure southeast of the Hawaiian Islands.

For the central North Pacific...between 140W and 180W:

Active Systems:
The National Hurricane Center is issuing advisories on Tropical
Storm Iona, located in the central Pacific basin well southeast of
the Hawaiian Islands.

1. Western East Pacific:
An area of low pressure well east-southeast of the Hawaiian Islands
is producing disorganized showers and thunderstorms. Gradual
development of this system is possible and a tropical depression
could form during the next couple of days as it moves generally
westward around 10 mph.
* Formation chance through 48 hours...medium...40 percent.
* Formation chance through 7 days...medium...40 percent.

2. Eastern portion of the Central Pacific:
Updated:  Satellite derived winds indicate that a small area of low
pressure has formed around 1000 miles southeast of the Hawaiian
Islands.  If deep convection persists, a short lived tropical
depression or tropical storm could develop later today.
* Formation chance through 48 hours...medium...50 percent.
* Formation chance through 7 days...medium...50 percent.




Public advisories on Tropical Storm Iona are issued under WMO header
WTPA31 PHFO and under AWIPS header HFOTCPCP1.
Forecast/Advisories on Tropical Storm Iona are issued under WMO
header WTPA21 PHFO and under AWIPS header HFOTCMCP1.


Forecaster Jelsema