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Autoresearch: ACP primaries after A-33-2026 (Panama Canal El Niño bottleneck, step 3)

Post-A-33-2026 ACP primary pull: slots still 9/23, draft still 14.63 m (14.48 m not reinstated). No Oct–Dec path. Auction series not pulled (login-gated box plots only). Step 3 stays open.

Source

Autoresearch: ACP primaries after A-33-2026 (Panama Canal El Niño bottleneck, step 3)

Generated by /autoresearch on 2026-09-19. Synthesized across 3 rounds from 12 successful web pages (2 guessed advisory URLs 404). Anchored by Grokipedia Panama_Canal + El_Niño–Southern_Oscillation (encyclopedic primers — not 2026 Canal sources). See Provenance. Treat as raw material — review before promoting. Context: vault/projects/stock-market (P1 open step 3 of el-nino-watershed-to-panama-canal-slot-draft)

Honesty for step 3

Stay open. No ACP primary after A-33-2026 (4 Sep) gives an October–December 2026 slot or draft schedule. An ACP auction-info portal exists (A-16-2026 → https://auctioninfo.pancanal.com/en) but it is registration-gated 7-day box plots, with full bid history only to participating parties. This pass did not pull a public primary auction-clearing series. Do not invent prints. Do not invent tickers. No buy/sell/size.

Summary

As of 19 September 2026, the latest capacity/draft ACP primary is still A-33-2026. Searches and two guessed PDF paths for A-32-2026 / A-34-2026 returned 404; the HTML advisory index still lists 2026 entries only through A-25, while A-28 through A-31 and A-33 exist as PDFs. Daily slots remain 9 Neopanamax / 23 Panamax under A-29-2026 (Panamax 23 from booking dates beginning 15 Sep). Draft remains 14.63 m (48.0 ft) TFW; the 14.48 m cut is not reinstated — A-33 postponed it “until further notice.” Official Gatun on 19 Sep is 84.5 ft, with dashboard official max draft 48.0 ft / 39.5 ft. Last ACP rainfall/inflow percentages are still A-29’s May–August −34% / −44%. NOAA/CPC 10 Sep 2026 is an El Niño Advisory (very-strong odds through fall–winter) — climate context, not a Canal slot path.

Findings

Advisories after A-33-2026 (4 Sep): none found

The governing post-A-33 draft print is A-33 itself. No A-34-2026, A-35-2026, or later advisory was located on pancanal.com. Guessed August monthly-ops paths (ADV-32-2026, ADV-34-2026-Monthly-Canal-Operations-Summary-August-2026) 404. Latest monthly ops primary found is A-26-2026 (July 2026) — pre-slot-cut, pre-A-33. A-32-2026 is a numbering gap between A-31-2026 (28 Aug) and A-33; it was not retrieved.

Pre-A-33 primaries that still bind current operations:

AdvisoryDateWhat it still does on 19 Sep
A-25-20265 AugFirst named 14.63 m (26 Aug) then 14.48 m (3 Sep). Superseded on dates by A-29 then A-33. Said slots “remain stable” — later reversed by A-29.
A-28-202620 AugEl Niño attribution; auction-by-segment groups (same method as 29 Nov 2023); ranking frozen from 1 Sep; ITT 48 h from 4 Sep.
A-29-202620 AugSlots 9 / 25 then 23; May–Aug −34% rain / −44% inflows; 14.48 m then aimed at 1 Oct.
A-30-202625 AugBooking-rule clarification only.
A-31-202628 Aug63 Neopanamax slots/week (= 9/day); segment minima; daily auction from leftover Period-3 capacity. Does not raise the 9/23 totals.
A-33-20264 SepHolds 14.63 m; postpones 14.48 m until further notice. Latest draft primary.

Matching ACP HTML press (not a substitute for the PDFs): 20 Aug watershed measures; 28 Aug booking flexibility.

Current slots: still 9 Neopanamax / 23 Panamax

A-29-2026 is still the slot primary:

  • Neopanamax 9/day from booking dates beginning 4 Sep 2026 (1 Period-2 slot; no Conditioned Neo slot).
  • Panamax 25/day on those dates, then 23/day from booking dates beginning 15 Sep 2026 (8 Super slots in Period 2; no more than 9 supers booked per direction).
  • Combined booked+auction totals in A-29’s tables: 34/day then 32/day (9 + 18 Super + 5 Regular).

A-31-2026 restates 63 Neopanamax slots per week, “compliment[ing] the slot distribution table … in Advisory A-29-2026.” The 28 Aug ACP press repeats 63/week. No later primary restores slots “well above 9.”

Current draft: still 14.63 m; 14.48 m not reinstated

A-33-2026 (full operative text):

Based on the current Gatun Lake level and the latest weather projections, the Panama Canal Authority (ACP) announces the postponement of the maximum authorized draft of 14.48 m (47.5 feet) Tropical Fresh Water (TFW) for Neopanamax Locks, scheduled to become effective on October 1, 2026, as announced in Advisory to Shipping No. A-29-2026.

Therefore, the maximum authorized draft of 14.63 m (48.0 feet) TFW will remain in effect in the Neopanamax Locks until further notice.

The same-day official dashboard (Gatun Water Indicators, 19 Sep 2026) prints Official Maximum Draft 48.0 ft / 39.5 ft and Official Gatun Water Level 84.5 ft. That matches 14.63 m, not 14.48 m.

Timeline (do not collapse): A-25 set 14.63 m on 26 Aug and 14.48 m on 3 Sep; A-29 postponed those to 2 Sep and 1 Oct; A-33 postponed the 1 Oct 14.48 m cut indefinitely. A-33 is a postponement, not a recovery of slots and not a reinstatement of 14.48 m.

Oct–Dec 2026 path: no ACP primary schedule (stay open)

What ACP has said, short of a path:

  • A-29: “forecasts indicate that the anticipated severity of the 2026-2027 El Niño event could further reduce precipitation and runoff during the remainder of the wet season”; combination “raises concerns regarding water availability during the upcoming 2027 dry season (January to April).”
  • A-28 and A-31: “While the water deficit continues in the Canal watershed…” — present-tense deficit, no dated Oct–Dec slot table.
  • A-33: will “announce future draft adjustments in a timely manner.”
  • A-28 unused-slot carryover language mentions booking dates into November 19–20, 2026 — booking-period mechanics, not a capacity recovery or further-cut decision.

NOAA/CPC 10 Sep 2026 diagnostic: El Niño Advisory; “greater than 90% chance of a very strong event during the Northern Hemisphere fall and winter 2026-27”; “During the October-December 2026 season, there is a 75% chance of a historic event” (RONI ≥ +2.5 °C vs 1950–). That is an ENSO strength forecast, not an ACP slot/draft path. Grokipedia ENSO text still cites a March 2026 CPC note — not usable as a 2026 operational source.

Checkpoint status: further cuts below 9/23 vs recovery = unscheduled. Hold 14.63 m vs reinstate 14.48 m = hold, until further notice. Neither is an Oct–Dec path.

Auction clearing vs 2023–24: series not pulled

ACP does operate daily auctions (A-29 tables: 1 Neo + 1 Super + 1 Regular auction slot/day). A-28 temporarily groups those auctions by market segment “similarly to what was temporarily implemented on November 29, 2023.” A-31 §10–14: customer limits do not apply to auction awards; “The daily auction slot will be offered using the remaining slot from any of the market segments competitions at the opening of Booking Period 3.”

A-16-2026 (18 May) is the disclosure primary:

Information provided by users during the auction process will remain strictly confidential. Once the auction is closed, the complete bid information will be made available and displayed in the bidding history exclusively to the participating parties.

Additionally, a daily box plot table covering the previous seven-day period will be published. This information will be available after registration through a self-service platform at … https://auctioninfo.pancanal.com/en.

Fetched https://auctioninfo.pancanal.com/ and /en: login / “Create your subscription” wall. No public clearing prints retrieved. No 2023–24 vs 2026 official series comparison is possible from this pass. Press anecdotes (e.g. a reported $5.3 million Sep-1 bid) are not an ACP primary series and are not used as a clearing print here.

Gatun / watershed: level update yes; rainfall % still A-29 only

Still the only ACP rainfall/inflow percentages: A-29-2026 — hydrological year May–August rainfall 34% below historical average; inflows 44% below. El Niño is named in A-29, A-28, A-25, and the 20 Aug press.

New vs the 10 Sep chain file: official Gatun dashboard on 19 Sep 2026 (PDF; index https://evtms-rpts.pancanal.com/eng/h2o/index.html):

  • Official Gatun water level 84.5 ft
  • Official max draft 48.0 ft Neopanamax / 39.5 ft Panamax
  • Variable freshwater surcharge 0.36% for transits beginning 19 Sep
  • Last projection upload 15 Sep 2026 14:57 GMT-5 (ACP labels projected drafts as estimates only; official drafts are advisories)

A search-index snapshot of the same PDF for 1 Sep showed 84.1 ft. That is a modest mid-September rise, not an ACP statement that inflows have normalized and not a new −34/−44 update. Historical/projection CSVs are linked from the index; they were not extracted as rainfall or inflow percentages. August 2026 monthly ops (which would be the natural next hydrology table) was not found.

Instrument reminder (step 4; do not reopen)

No US-listed Canal P&L pure-play. Do not invent HPGLY or CP. CPKC sold PCRC 1 Apr 2025. This pass did not research issuers and does not name trades.

Contradictions and open questions

  • A-33 vs a one-way restriction path: ACP postponed a further draft cut on current Gatun + weather even while A-28/A-29/A-31 keep a watershed deficit and 9/23 slots. Restriction is real; it is not monotonic.
  • A-25 “slots remain stable” (5 Aug) vs A-29 slot cuts (20 Aug) — already known; A-25 is historical for the draft calendar only.
  • Index vs PDFs: HTML advisory index still surfaces 2026 through A-25; later 2026 PDFs exist off-index. Absence of A-34+ on the index is not proof none exists, but URL guesses 404’d and targeted searches found none.
  • Open — Oct–Dec slot path: further cuts below 9/23 vs recovery? No ACP primary.
  • Open — draft path after “until further notice”: hold 14.63 m vs later reinstate 14.48 m? A-33 holds; no Oct–Dec calendar.
  • Open — auction vs 2023–24: portal exists; series not pulled. Need a logged-in box-plot extract or a later public advisory that prints clearing stats.
  • Open — Sep rainfall/inflow %: still A-29 May–August only.
  • A-32-2026: numbering hole; 404 on guessed paths.

Provenance

Rounds run: 3 of 3

Sub-questions by round:

Round 1 (broad survey):

  1. Which ACP Advisories to Shipping exist after A-33-2026 (4 Sep 2026)?
  2. What are the current official Neopanamax / Panamax daily slots and Neopanamax draft?
  3. Does any ACP primary give an Oct–Dec 2026 further-cut vs recovery path?
  4. Is an ACP primary auction-clearing series now public?
  5. What Gatun / watershed rainfall-inflow update exists for hydrological year 2026 after A-29’s May–August print?

Round 2 (drill-down):

  1. A-32-2026 existence / August monthly ops — targeting the A-31→A-33 numbering hole and a possible hydrology table.
  2. Official Gatun level after 1 Sep — targeting a post-A-33 lake print.
  3. Auctioninfo / N-7 disclosure rules — targeting whether a series can be cited vs 2023–24.
  4. A-31 slot-week math (63 = 9/day) — targeting confirmation that 9/23 was not quietly raised.

Round 3 (resolve remaining uncertainty):

  1. Can auctioninfo be read without login? — targeting whether the series is actually public.
  2. Do A-32 / A-34 PDF URL patterns resolve? — targeting a hidden post-A-33 primary.
  3. A-28 + A-25 full text — targeting El Niño language, 2023 method reuse, and the draft calendar A-33 reversed.

Anchor source (Grokipedia, fetched before round 1; encyclopedic — not a 2026 Canal source):

  • Panama Canal — 12,017 chars (capped) — history, locks, Gatun as the 26 m freshwater pool. No 2026 slot/draft figures.
  • El Niño–Southern Oscillation — 6,017 chars (capped) — ENSO mechanics; embedded CPC note is March 2026 (stale vs 10 Sep advisory). First “El Niño” slug resolved to the Spanish Sorteo Extraordinario de El Niño lottery page — discarded.

URLs fetched (12 successful, 2 failed; Grokipedia anchors extra):

Round 1:

Round 2:

Round 3:

Not used as primary (press / search only): FreightWaves / Maritime Executive $5.3 m anecdotes; Newsroom Panama 23 Aug Gatun ~84.5 ft interview; WorldCargo A-33 recap. A-26-2026 July ops identified via search, not fully fetched — July only.

Tools used: WebSearch, WebFetch, grokipedia-fetch (_lib/grokipedia.py). No X pass. Generated: 2026-09-19 21:10 UTC

Referenced by
Mechanisms
El Niño watershed drought → Panama Canal slot/draft cuts → no US listed pure-play