Reservoir levels drop as dry season deepens

The dry season that began in late September has advanced faster than the thirty-year average, and the Costa Mar Hydro Authority reported this week that the main reservoir system is now operating at 58 percent capacity—three percentage points below the historical norm for early November. The measurement stations at Lago Esperanza and the Río Dulce intake both show flow rates that have declined by roughly twelve percent since mid-October.

The tightening margin has already prompted the Federal Hydro Authority to reduce the region's committed export volume to Tierra Verde by four megawatts for the November-December period. Tierra Verde's landlocked agricultural economy depends on hydroelectric supply from Costa Mar's isthmus rivers, and any interruption to that flow affects grain-processing schedules and irrigation pumping across the inland valley.

Federal officials in Meridian have begun contingency planning for a potential shortfall in January if the dry season extends beyond its historical window. The question now is whether November and December rainfall will restore the reservoir to comfortable operating margins, or whether Costa Mar will face a choice between reducing export commitments or drawing down reserves.