Storm Watch — Week 37, 2026
The Atlantic basin entered the climatological peak of hurricane season with nothing to show for it. As of the 13 September snapshot, there are no named systems, no active tropical disturbances threatening to organize, and no advisory products in effect across the Gulf, the Caribbean, or the deep tropics. For traders running positions tied to Gulf Coast crude, LNG export terminals, or Atlantic Basin refining capacity, that absence is itself a data point — and a fairly legible one given the forcing mechanism behind it.
The Nino-3.4 index, which reached 3.5 on 2 September, has now climbed without interruption for the past twelve weeks. The sequence runs from 1.9 on 17 June to 2.0, 2.0, 2.2, 2.3, 2.5, 2.8, 3.0, 3.2, 3.3, 3.4, and finally 3.5 — a steady, nearly linear ascent that has carried the event well into strong El Niño territory. What matters for Atlantic basin risk is where Nino-3.4 sits during the August-October peak, and by that measure the signal is about as clean as seasonal forecasters get: sustained anomalous warmth in the central equatorial Pacific drives anomalous wind shear across the Caribbean and the main development region, and shear tears storms apart before they can intensify. The quiet basin is consistent with that physics, not a surprise.
The seasonal forecast agencies said as much months ago. NOAA's 21 May outlook called for 8 to 14 named storms, 3 to 6 hurricanes, and 1 to 3 major hurricanes — a below-normal season. CSU's 10 June update tightened those numbers to 11 named storms, 5 hurricanes, and 2 major hurricanes, with an ACE forecast of 70 against a climatological median near 123. Both outlooks flagged El Niño suppression as the primary driver, and the Nino-3.4 trend since those publications has only reinforced the case. We are now halfway through the statistical peak window — roughly the two-week period centered on 10 September that accounts for a disproportionate share of climatological activity — and the basin has remained dormant throughout.
The open call ledger, established in early July when this El Niño trajectory was already visible, remains intact across all five positions. The central call — that below-normal Atlantic hurricane risk would compress Q4 energy risk premia — has had nothing to test it on the meteorological side, which is exactly what the position anticipates. CSU's 10 June landfall probabilities, cited as the basis for the second call, put CONUS major-hurricane landfall odds at 24 percent against a 43 percent climatological baseline, and Gulf major-hurricane odds at 14 percent against 27 percent. With peak season passing quietly, the odds-to-date are behaving in line with that framing, though the season runs through November and the ledger will not be graded until the final tallies are in.
The structural gas-market call — that Gulf hurricane risk to Henry Hub has migrated onshore to the LNG export terminals rather than sitting in offshore production — has not been tested by a landfall event this season, and that is precisely the point of the call. The offshore Gulf of Mexico now accounts for roughly 1 percent of US marketed gas against 17 percent in 2005, but LNG export capacity has clustered along the Louisiana and Texas Gulf Coast in the years since. A terminal strike would be bearish Henry Hub and bullish TTF and JKM; the absence of a strike this season leaves the winter gas strip to be driven by demand rather than supply disruption.
That demand framing connects directly to the fourth call: in strong El Niño analogue years — 1997-98 and 2015-16 being the reference cases — the warmer-US-winter tilt suppressed heating demand and weighed on the gas strip more than any hurricane season effect. Nino-3.4 at 3.5 entering autumn puts this season on a trajectory comparable to those analogues. The Q4 gas strip, not the remnants of Atlantic storm season, is the live meteorological risk to watch.
The fifth call, concerning western Pacific typhoon track shifts and LNG demand-corridor exposure through Japan and Korea, is the one most actively in play right now. Guy Carpenter's May outlook for the western Pacific pointed toward above-normal Japan and Korea landfall risk under El Niño-driven northeast recurvature. That window runs through October, and unlike the Atlantic, the western Pacific has been active. Any typhoon that reaches the Japanese coast or disrupts Korean LNG import infrastructure during a period of high storage utilization carries a TTF and JKM impact that dwarfs anything the quiet Atlantic season can generate. This column will continue monitoring that corridor through W40.
For the Atlantic, the honest read at mid-September 2026 is that the season is performing as advertised: suppressed, orderly, and thus far without commercial consequence for Gulf Coast infrastructure. The calls opened in July remain open and ungraded. The Nino-3.4 signal continues to strengthen. The season has not ended — but the window in which it was most likely to deliver a disruptive event is closing without incident.