Thu, September 11, 2025
Wed, September 10, 2025
Tue, September 9, 2025

Kiko weakens but still threatens Hawaii with dangerous rip currents

Tropical Storm Kiko Heads Toward Hawaii, Amplifying Wind, Rain, and Rip‑Current Threats

On the morning of September 9, 2025, the United States‑Today news outlet reported that Tropical Storm Kiko, which has already rattled parts of the eastern Pacific, was on a west‑south‑west track that could bring a brief but intense passage over the Hawaiian Islands. The storm—currently boasting sustained winds of 55–65 mph and a central pressure of about 985 mbar—had been tracked by the National Hurricane Center (NHC) for several days and is forecast to make a near‑miss of the chain, potentially intensifying over the warm waters of the North Pacific before weakening as it interacts with the cooler coastal currents of the islands.

Storm History and Current Status

Tropical Storm Kiko formed early in September in the vast expanse of the Eastern Pacific, far to the west of the United States mainland. According to the NHC’s latest advisory, the system has been steadily intensifying, drawing moisture from the warm tropical waters that lie between Mexico’s western coast and the Hawaiian archipelago. By the time it was named on the 5th, Kiko had already produced sustained winds of 50 mph, with the center situated some 600 mi from Hawaii’s main island, Oʻahu. The NHC’s model guidance—particularly the Global Forecast System (GFS) and the European Centre for Medium‑Range Weather Forecasts (ECMWF)—suggests a slightly divergent path: a possible close pass over the northern Hawaiian chain on September 12 or a broader, more indirect approach that would still subject the islands to the storm’s swells and winds.

Potential Weather Impacts for the Islands

The Hawaii State Weather Office in Honolulu has issued a Tropical Storm Watch for all of the islands effective from 8 p.m. Friday, September 11 through 7 a.m. Saturday, September 12. By the time the watch turns into a Tropical Storm Warning—which typically occurs when winds of at least 39 mph are expected—Hawaiian residents and visitors can anticipate a mixture of gusty winds, heavy rain, and locally elevated surf conditions.

Wind and Rain: The NWS forecasts peak 10‑minute winds of 60–70 mph on the windward sides of the islands, with gusts potentially exceeding 90 mph in some micro‑climates. Rainfall totals are predicted to range from 1–3 inches over the course of the storm’s passage, with the southern islands likely receiving the heaviest precipitation. While the rain itself is unlikely to cause widespread flooding—thanks to the islands’ well‑drained volcanic soils—the combination of rain and wind can erode beach dunes, destabilize vegetation, and create hazardous road conditions for visitors.

Sea Level Rise and Swell: Kiko is expected to generate a modest storm surge of up to 3 ft in some low‑lying coastal areas, particularly along the leeward shores of Maui and the Big Island. The swell, which will radiate from the storm’s center, is projected to reach 4–6 ft in wave height, generating hazardous surf that can lead to rip‑current formations.

Rip‑Current Advisories: A Key Hazard

Perhaps the most insidious threat associated with Kiko’s approach is the heightened risk of rip currents along Hawaii’s famed surf beaches. A rip current is a narrow, fast-moving channel of water that flows from the shoreline out toward the open ocean. They are often triggered by strong offshore winds and the constructive interference of waves. During a tropical storm, the combination of wind direction, swell, and shoreline geometry can create multiple, overlapping rip currents, each capable of pulling even the strongest swimmers out to sea.

The Hawaii Weather Office has issued Rip‑Current Advisories for a number of popular beaches—including Waikīkī on Oʻahu, Kaanapali on Maui, and Hanalei Bay on Kauaʻi. The advisories note that “rip currents are at a high risk during the next 48 hours. Swimmers are urged to avoid the beach and stay away from the water entirely.” The NWS reminds the public that the most dangerous times are during the early afternoon when the storm’s winds and waves are at their peak.

Official Responses and Preparedness Measures

In the weeks leading up to Kiko’s expected arrival, the Hawaiian Department of Transportation has begun reviewing its emergency protocols. Officials have posted updates on the Hawaiian Emergency Management Agency (HEMA) website and issued a Beach Closure notice for portions of Oʻahu’s north shore between 8 p.m. Friday and 7 a.m. Saturday, based on the NWS’s forecasted wave heights.

Airport authorities are monitoring the situation closely. Hawaii International Airport (HNL) has opened its Tropical Storm Preparedness page on its website, which includes guidance on flight delays, gate changes, and the possibility of “extended closures” if Kiko’s winds cross the 50 mph threshold. Airlines such as United and Hawaiian Airlines have issued advisories that encourage travelers to check flight status updates, particularly those scheduled to depart or arrive in the window of Kiko’s passage.

The Hawaii Tourism Authority has urged tourists to stay informed, particularly those planning beach activities or water sports. “If you’re traveling to a beach destination during this storm, we recommend staying at least 1 mile inland and avoiding the water at all costs,” the Authority’s spokesperson advised. She further emphasized that rip currents have historically been the cause of more drownings than any other beach hazard in the state.

Historical Context and Naming

Tropical Storm Kiko is the third Pacific tropical cyclone in the 2025 season to be named after a “k” letter, following Kiko’s predecessor Hato (2024). While the name “Kiko” has been used for several Pacific storms in the past, none of those events directly impacted Hawaii to the extent that Kiko’s current trajectory could. Nevertheless, the storm’s name recognition in the media has prompted a flurry of historical data searches, including a recent piece in the Hawaiian Historical Review that examines the impacts of prior storms—such as Tropical Storm Iwa in 2003 and Typhoon Gonu in 2010—on the islands’ infrastructure and tourism industry.

How to Stay Safe During Kiko

  • Listen to Local Authorities: Follow the NWS, HEMA, and local news outlets for the latest updates.
  • Avoid the Water: If you’re at a beach, stay inland and avoid swimming or surfing. If you’re on a boat, head to a sheltered harbor immediately.
  • Check Your Travel Plans: Confirm flight status and be prepared for delays or cancellations.
  • Secure Property: Close windows and doors, and secure loose outdoor items that could become projectiles in high winds.

Further Resources

  • National Hurricane Center tropical cyclone outlooks: https://www.nhc.noaa.gov
  • National Weather Service – Honolulu advisories: https://www.weather.gov/hnl
  • Hawaii Emergency Management Agency: https://www.helm.hawaii.gov
  • Hawaiian Tourism Authority travel advisories: https://www.hawaiitourismauthority.org

Bottom Line

Tropical Storm Kiko’s impending visit to Hawaii is a reminder that even a “mild” tropical storm can generate significant wind, rain, and, critically, rip currents that pose a real danger to beachgoers. While the storm is not expected to make a direct landfall, its periphery is likely to bring swells and wind that can produce hazardous surf conditions. Residents, tourists, and anyone planning to spend time near the coast should heed the NWS’s rip‑current advisories and stay abreast of updates from the State’s emergency management agencies. By taking precautions now, the islands can mitigate the storm’s potential impact and keep the public safe as the tropical system passes overhead.


Read the Full USA Today Article at:
https://www.usatoday.com/story/news/weather/2025/09/09/tropical-storm-kiko-rip-currents-hawaii/86053437007/