Panama Canal Draft Cut Revives Drought Concerns as NOAA Confirms El Niño

• The Panama Canal Authority (ACP) announced on June 4, 2026, that it will reduce the maximum authorised draft for vessels transiting the Neopanamax locks beginning July 3, 2026, based on current and projected water levels in Gatun Lake and concerns that El Niño conditions could develop later in the year.
• The announcement is now more significant after the National Oceanic and Atmospheric Administration (NOAA) issued an El Niño Advisory on June 11, 2026, confirming that El Niño conditions have developed in the tropical Pacific. According to the NOAA, El Niño, the warm phase of the El Niño–Southern Oscillation (ENSO), is expected to strengthen into the Northern Hemisphere winter, with a 63% chance of a very strong El Niño.
• According to the ACP, the maximum authorised draft for Neopanamax vessels will be reduced from 15.24 metres / 50 feet to 15.09 metres / 49.5 feet of tropical fresh water. The adjustment forms part of the canal’s broader water-management strategy and will not affect the number of daily vessel transits.
• The measure marks the return of draft restrictions for the first time in around two years, likely rekindling concerns about a repeat of the 2023–2024 drought crisis. At the height of that crisis, water shortages cut canal throughput by as much as 40% below normal levels through transit restrictions and vessel draft limitations.
• Canal officials have sought to reassure customers, noting that unusually heavy rainfall during the latest dry season has left both Gatun and Alhajuela lakes at maximum capacity. The ACP said current water reserves provide a substantial buffer against potential El Niño-related water stress and that significant disruption is not expected before December, while weather conditions and hydrological forecasts will continue to be monitored weekly.
• However, the draft cut comes as the canal is already operating under increasing pressure from record U.S. energy exports and shifting trade flows linked to the Middle East conflict. According to Clarksons Research, product tanker transits reached record levels in April and May, while growing volumes of liquefied petroleum gas and ethane exports have intensified competition for available slots.
• Signs of congestion are already visible, with Clarkson’s Research estimating that deep-sea cargo vessel waiting times averaged 50 hours during April and May, up from around 30 hours before the recent surge in traffic. Competition for priority passage has also intensified, with average auction prices for canal transit slots reportedly trebling to around US$400,000, while some priority bookings have changed hands for as much as US$4Mn per vessel.
• The Panama Canal draft cut is modest, but strategically important because it comes at a time when water-management risks and geopolitical trade disruptions are overlapping. While current lake levels provide a buffer and daily transits are not being reduced, higher U.S. energy exports, Middle East-related rerouting, rising waiting times and record auction prices suggest that any future restrictions could have a larger impact on freight costs, vessel scheduling and global supply chains than the small draft adjustment might initially imply.

(Sources: Seatrade Maritime News, Panama Canal Authority & the National Oceanic and Atmospheric Administration)