IPTCWC

Western North Pacific Tropical Weather Outlook: The IPTCWC is issuing advisories on Tropical Storm #Four, located slightly to the northwest of Chuuk, Micronesia. Elsewhere, no new tropical cyclones are expected in the next seven days.

IPTCWC TC Update Tropical Storm Four Advisory #3 …FOUR EXPECTED TO BECOME A POWERFUL TYPHOON NEXT WEEK… Thu, Apr 09 2026 1800 UTC Location: 8.0N 151.1E Max Sustained Winds (1-min): 40kts (45mph) Central Pressure: 994mb Dvorak Analysis: FT3.0 CI3.0 Next advisory: 04/10 0300z

Tropical Storm #FOUR Advisory #2: Four now a tropical storm, slowly organzing, watches and warnings issued for Micronesian Islands. Max winds have increased to 35knots (40mph). Significant typhoon possible, Guam highly advised to closely monitor. Click below for more info.

Tropical Depression #FOUR Advisory #1: Depression quickly consolidates near Marshall Islands, forecast to become powerful typhoon. Max winds are at 30knots (35mph). Marianas Islands are strongly advised to closely monitor. Click below on IPTCWC cone and discussion for more info.

IPTCWC will initiate advisories on Tropical Depression WP04 (FOUR) at the next advisory cycle (04/09/26 03z) which is located approximately 592 Nautical miles east-southeast of Guam, Marianas Islands, US.

Western North Pacific Tropical Weather Outlook: An area of low pressure (Invest #90W) lies in the open Tropical West Pacific, southeast of the Mariana Islands. This system has a high 🔴 (near 100%) chance of tropical development through the next 7 days.

Western North Pacific Tropical Weather Outlook: An area of interest lies in the open Tropical West Pacific, southeast of the Mariana Islands. This system has a high 🔴 (80%) chance of tropical development through the next 7 days.

Western North Pacific Tropical Weather Outlook: An area of interest lies in the open Tropical West Pacific, southeast of the Mariana Islands. This system has a high 🔴 (70%) chance of tropical development through the next 7 days.

Western North Pacific Tropical Weather Outlook: A broad area of low pressure is forecast to form near the Federated States of Micronesia this weekend. This system has a medium 🟠 (50%) chance of tropical development through the next 7 days.

Western North Pacific Tropical Weather Outlook: A broad area of low pressure is forecast to form near the Federated States of Micronesia this weekend. This system has a low 🟡 (30%) chance of tropical development through the next 7 days.

The Indo-Pacific Tropical Cyclone Warning Center will begin issuance of 7-day Tropical Weather Outlooks (TWOs) on April 1, 2026. This applies to all text and graphical products and will replace the 5-day TWOs issued between 2023 and 2025.

NOAA OSPO Ensemble Tropical Rainfall Potential (eTRaP) for WP02 #Penha | Rainfall Accumulation Forecast for next 24 hours valid 14:00 PHST Feb 6th 2026.

NOAA OSPO Ensemble Tropical Rainfall Potential (eTRaP) for WP02 #Penha | Rainfall Accumulation Forecast for next 24 hours valid 20:00 PHST Feb 5th 2026.

Tropical Storm #Penha Advisory #1: Penha near landfall in Mindanao, heavy rains a major concern. Max winds are at 45knots (50mph). Heavy rainfall expected over much of southern Philippines. Dissipation near Palawan in 48 hours. Click below on cone and discussion for more info.

Western North Pacific Tropical Weather Outlook: An area of low pressure is expected to develop over the central Philippine Sea by early next week, with tropical cyclogenesis possible by Wednesday or Thursday as it approaches Mindanao.

Western North Pacific Tropical Weather Outlook: An area of low pressure may develop over the central Philippine Sea by early next week, with tropical cyclogenesis possible by Wednesday or Thursday as it approaches Mindanao.

Severe Tropical Storm #Nokaen Advisory #2: Nokaen bringing heavy rainfall and rough surf to eastern Visayas. Max winds have increased to 50knots (60mph). Major forecast track adjustment and weakening expected after 24 hours. Click below on cone and discussion for more info.

Tropical Storm #NOKAEN Advisory #1: January storm kicks off 2026 pacific storm season. Max sustained winds are 35knots (40mph). Strong vertical wind shear will hinder developing. Moderate to heavy rains expected over the Philippines. Click on cone and discussion for more info.

Western North Pacific Tropical Weather Outlook: The area of low pressure (#91W) located east of Mindanao has become better defined today and is likely to develop into a tropical depression or storm by early next week as it tracks northwest towards the central Philippines.

Western North Pacific Tropical Weather Outlook: An area of low pressure (#91W) located east of Mindanao may develop into a tropical depression or storm by early next week as it tracks northwest, roughly parallelling the Phillipine Islands.