Morning Overview

Two long-track typhoons are spinning up in the West Pacific even as the Atlantic stays empty

Two organized tropical cyclones are tracking across the western Pacific this week, with satellite bulletins logging simultaneous updates for systems designated 07W and 08W, while the National Hurricane Center confirms zero active storms in the Atlantic and expects none to form in the next seven days. The split between the two ocean basins is stark: one is producing long-track systems in rapid succession, and the other sits dormant during what NOAA has already forecast to be a below-normal hurricane season. For communities along Pacific shipping corridors and coastlines from the Marianas to Japan, the active pair demands close attention right now.

A quiet Atlantic and a busy Pacific diverge sharply in late June

The contrast between basins is not subtle. The NHC’s early-morning Atlantic outlook issued at 8:00 a.m. EDT on June 24 stated plainly: “There are no tropical cyclones in the Atlantic at this time,” and added that tropical cyclone formation is not expected during the next seven days. That bulletin, tagged ABNT20 KNHC 241134, reflects a basin where environmental conditions are actively hostile to storm development and where even the typical late-June “homegrown” disturbances in the Gulf or western Caribbean have failed to materialize.

NOAA’s seasonal perspective already pointed in this direction. The agency’s official guidance for a quieter Atlantic season cites an expected El Niño, comparatively cool Atlantic sea-surface temperatures relative to recent hyperactive years, and stronger-than-normal trade winds that increase vertical wind shear. Those ingredients tend to shred nascent circulations and inject dry, stable air into the mid-levels, making it far harder for tropical waves emerging from Africa or drifting north from the Intertropical Convergence Zone to consolidate into named storms.

In the western Pacific, by contrast, the atmosphere is behaving as if a switch has been flipped. The NOAA NESDIS Satellite Analysis Branch has been issuing recurring bulletins for both 07W and 08W, with entries for the two systems appearing on June 25 and 08W continuing into June 26. The Climate Prediction Center’s Global Tropics Hazards Outlook highlights elevated odds of tropical development in the West Pacific during the coming weeks, indicating that the current burst of activity is embedded within a broader pattern of favorable ocean heat content, low shear, and robust monsoon trough convection.

Meteorologists have long studied how the major ocean basins can “talk” to one another through large-scale circulation features. One plausible connection in late June involves the subtropical ridge, the belt of high pressure that arcs across the Northern Hemisphere and helps steer tropical cyclones. When one or more typhoons intensify in the western Pacific, their outflow can reinforce this ridge, extending and strengthening it downstream. A temporarily stronger ridge over the Atlantic can suppress rising motion and limit the clustering of thunderstorms along easterly waves, adding a subseasonal brake on top of the seasonal El Niño signal. While no operational model output in the sourced record explicitly quantifies that feedback for June 2026, the physical mechanism is well documented in tropical meteorology, and the timing lines up: the Atlantic outlook turned emphatically quiet just as the Pacific spun up two simultaneous systems.

Satellite data pins Typhoon Higos at Dvorak T3.5 near Japan

The stronger of the two Pacific systems, 08W, has been named Higos. A recent NESDIS bulletin fixed its center at 27.8°N, 134.5°E at 05:30 UTC on June 26, placing the storm well southeast of mainland Japan in the open Pacific. The analysis assigned a Dvorak intensity of T3.5/3.5, consistent with a solidly organized tropical cyclone possessing sustained winds in the range typically associated with a moderate typhoon and seas rough enough to disrupt marine operations across a wide swath of the western Pacific.

That intensity estimate rests on multiple satellite platforms. Himawari‑9, Japan’s geostationary weather satellite, provides high-frequency visible and infrared imagery that reveals the symmetry of the central dense overcast, the curvature of spiral bands, and the presence or absence of a discernible eye feature. AMSR2, a microwave radiometer aboard a polar‑orbiting satellite, peers through the cirrus canopy to map rainbands and the warm core at the storm’s heart. When both instruments support a consistent Dvorak classification-showing curved bands wrapping tightly around a central convective mass-forecasters gain confidence that the assigned T‑number reflects the cyclone’s true structure rather than a transient convective flare.

At its current position, Higos is far from any immediate landfall, but its wind field and swell footprint are already relevant for shipping lanes and fishing fleets that operate between the Ryukyu Islands, the Ogasawara archipelago, and Guam. Moderate typhoons can generate significant wave heights that propagate hundreds of kilometers from the center, complicating navigation and potentially forcing reroutes for commercial and military vessels. Depending on how the steering flow around the subtropical ridge evolves, the storm could either recurve harmlessly into the North Pacific or angle closer to Japan’s southern coastline later in its life cycle, but those scenarios remain speculative in the absence of official forecast tracks.

System 07W, which appeared in parallel satellite bulletins through June 25, is less well documented in the public record available here. The existing evidence confirms its classification as an organized tropical cyclone but does not provide a detailed breakdown of its peak intensity, inner-core structure, or subsequent evolution after that date. Even so, the mere fact that 07W developed alongside Higos is operationally important. Simultaneous long‑track typhoons can strain regional resources, as meteorological agencies, emergency managers, and maritime operators must monitor multiple threat envelopes, each with its own potential for heavy rain, high surf, and damaging winds.

Gaps in track forecasts and ridge diagnostics leave key questions open

The sourced material paints a clear picture of the current state of play-two active cyclones in the western Pacific, none in the Atlantic-but leaves several critical details unresolved. Notably, there are no primary forecast products from the National Hurricane Center or the Joint Typhoon Warning Center in the record beyond the single-time satellite fixes, so there is no authoritative guidance here on future track, peak intensity, or timing of any recurvature or land interaction for 07W or Higos.

That absence of forecast data limits how specifically one can speak about risk to particular coastlines such as Taiwan, the Philippines, or Japan’s main islands. Without official model‑based projections, any attempt to pinpoint landfall locations, rainfall totals, or wind impacts would be conjecture. What can be said with confidence is that Higos currently occupies a position that allows for multiple plausible trajectories around the western flank of the subtropical ridge, and that even a recurving track well offshore could still send dangerous surf and rip currents toward exposed coasts.

There are also gaps in the diagnostics of the larger‑scale environment. While the conceptual link between active western Pacific typhoons, a reinforced subtropical ridge, and suppressed Atlantic convection is well established, the available sources do not include quantitative analyses of ridge strength, jet‑stream configuration, or outgoing longwave radiation anomalies for late June 2026. As a result, the degree to which the Pacific activity is actively damping Atlantic storm potential-versus simply coinciding with an already hostile Atlantic background state-remains an open question.

For now, the practical implications are straightforward. Interests across the western Pacific, particularly maritime operators and island communities from the Marianas to southern Japan, should continue to follow updates from their national meteorological services as additional satellite passes refine the structure and motion of both 07W and Higos. In the Atlantic, the lack of near‑term development signals a temporary reprieve, but it does not negate the need for preparedness later in the season, when climatology and any shifts in ocean‑atmosphere patterns could still allow a smaller number of storms to become high‑impact events. The current split between a quiet Atlantic and a busy Pacific underscores how unevenly the tropics can distribute risk, and how closely that risk is tied to evolving patterns that span the entire hemisphere.

More from Morning Overview

*This article was researched with the help of AI, with human editors creating the final content.