Tropical Storm Pena forms in the Pacific Ocean south of Hawaii

Tropical Storm Pena has developed in the eastern Pacific Ocean south of the Hawaiian Islands, according to a statement released by the U.S. National Hurricane Center on Saturday afternoon. The system, which has now acquired a formal name, is expected to continue to strengthen over the next 48 hours before moving further westward, potentially bringing heavy rainfall and strong winds to parts of the Central American coast.The National Hurricane Center issued a Tropical Weather Outlook at 12:00 UTC on Saturday, noting that a broad low‑pressure area had formed in the far eastern Pacific, near 20° N, 140° W..

Satellite imagery at the time showed a well‑defined low‑level circulation and a cluster of deep convection that was beginning to coalesce. By the early evening, the system had consolidated enough to be classified as a tropical depression, with maximum sustained winds of 35 mph (55 km/h). The center of the storm, located roughly 400 miles south of Honolulu, was moving slowly towards the west at a speed of 10 mph (16 km/h).Within hours, the National Hurricane Center upgraded the depression to a tropical storm, assigning it the name Pena..

The designation follows the World Meteorological Organization’s list of names for east‑Pacific storms, which cycles annually. The name “Pena” had not been used in previous seasons and will appear on the 2026 list. The official bulletin noted that the storm’s center was becoming more defined, with an eye‑like feature forming in the central core..

While the system was still relatively small, with a diameter of around 150 miles (240 km), its organization suggested it had the potential to intensify further.Meteorologists are monitoring the storm’s environment closely, as the sea‑surface temperatures in the area are above 28 °C (82 °F), providing ample heat and moisture to fuel further development. However, the National Hurricane Center cautions that the system could encounter increased wind shear later in the week, which would likely limit its strengthening. Wind shear, defined as a change in wind speed or direction with height, tends to tilt the structure of a tropical cyclone and disrupt the vertical alignment that is essential for intensity gains..

The forecast models currently predict a moderate level of shear, but the exact timing of its arrival remains uncertain.Despite these uncertainties, the forecast track for Tropical Storm Pena remains generally westward, with a slight northerly component that would bring it closer to the southern coast of Mexico by Monday. National Weather Service has issued a tropical storm warning for the southern coast of the Baja California Peninsula, advising residents and visitors that sustained winds of 40–60 mph (65–95 km/h) and heavy rainfall are possible. The warning is in effect from 8 p.m..

local time on Sunday until 6 a.m. The warning also highlights the risk of storm surge along the coastlines and the potential for coastal flooding.In addition to the warnings issued for the U.S. territories, the National Hurricane Center has issued a watch for parts of the Central American coast, particularly the western coasts of Guatemala and Honduras..

A watch is issued when a tropical storm or hurricane is expected within 48 hours, and it allows time for preparation. The agency urges local governments to review emergency plans, secure loose objects, and ensure that coastal communities are aware of the potential for high winds and heavy rain. While the system is currently located well south of the mainland, the possibility of an intensification scenario, though low, cannot be ruled out entirely.Local news outlets across the Hawaiian Islands have already begun reporting on the storm’s development..

Although the center remains far from the islands, the National Weather Service in Honolulu has issued a tropical storm watch that will remain in place until the system is further out to sea. The watch advises residents to prepare for the possibility of heavy rain, gusty winds, and the risk of locally strong winds. While the impact on the islands is expected to be moderate, the watch provides a precautionary measure for the communities that live on the windward side of the archipelago.The National Hurricane Center also noted that the system’s rainfall totals could be significant..

Models suggest that a band of rain could produce up to two inches of precipitation over a 24‑hour period in the most affected areas. For regions already dealing with drought conditions, even a modest increase in rainfall could be beneficial. Conversely, in areas prone to flooding, the additional precipitation could exacerbate existing concerns, especially in low‑lying or deforested areas where runoff is a serious problem.The Center has indicated that the best‑track analysis will be refined as the system continues to evolve..

Meteorologists rely on a combination of satellite data, reconnaissance aircraft reports, and numerical weather models to track the storm’s movement and intensity. As such, the official track and intensity projections may change as new data become available. The National Hurricane Center urges the public to remain vigilant and to consult local authorities for the latest updates.In the meantime, residents across the Pacific region are encouraged to stay informed through reliable sources, such as the National Hurricane Center’s website and local news channels..

The organization has emphasized that while Tropical Storm Pena is currently a low‑end threat, the dynamic nature of tropical cyclones requires continuous monitoring. The National Hurricane Center will continue to issue updates throughout the week, ensuring that communities have the necessary information to prepare and respond to any potential impacts..