Journal Special entry
El Niño is very strong. This basin's winter is still not a sure thing.
A special Journal entry, not the daily gauge record. NOAA CPC and IRI have a very strong El Niño for winter 2026-27. The local precipitation record for strong events here is mixed. Written once, from public bulletins and named local quotes.
Special retrospective, published Sunday, September 27, 2026. Permanent URL.
NOAA's Climate Prediction Center, in its September 10, 2026 ENSO discussion, says El Niño is strengthening, with a greater than 90% chance of a very strong event during Northern Hemisphere fall and winter 2026-27. For October-December 2026, CPC gives a 75% chance of a historic event that would exceed previous El Niño events in the 1950-present record. IRI's current ENSO forecast agrees that El Niño is in place and expected to continue. That is the ocean. It is not a Tahoe snowpack number, and it is not a Truckee flood forecast.
The honest regional record is less dramatic than the Pacific. The El Niño-to-wet-winter signal is real for Southern California. For the Tahoe-Truckee-Reno basin it is weaker and mixed. Among the last four strong-or-stronger events, only 1997-98 was clearly wet here. 2015-16, the previous record-strength event, was a snow-year miss. This page does not invent a basin-specific probability. CPC does not publish one at this scale.
Dan McEvoy, regional climatologist at the Western Regional Climate Center, put that in one sentence on September 9, 2026, in the Nevada Independent: "The El Niño might be super, but the impacts aren't guaranteed to be super." In the same piece he said Northern Nevada sits in a middle zone, without a one-to-one link from a strong ocean event to strong local impacts, and that 1982-83 and 1997-98 were extremely wet in Nevada while 2015-16 precipitation was near normal, according to NOAA.
Nevada State Climatologist Baker Perry, speaking to News 4 / Fox Reno on July 23, 2026, drew the 1982-83 analog and named the January 1997 Truckee River flood as the template for a bad-case rain-on-snow winter. CNRFC's Farad historical table lists that peak at 14,900 cfs and 13.13 feet on January 2, 1997. Perry also said El Niño winters tend to run a little warmer, which raises the chance of rain at lower elevations and higher snow levels. That warmer-storm line is forecaster consensus. This site did not find a study that isolates the effect for Tahoe alone.
On September 21, 2026, California Governor Gavin Newsom proclaimed a statewide emergency to prepare for flood, landslide, and related winter impacts from this El Niño. The proclamation cites CPC's greater-than-90% very-strong outlook. It does not name Tahoe, Truckee, or Nevada. It is included here as evidence the event is being taken seriously at the state level, not as basin-specific news.
As of September 27, 2026, no Truckee-basin water operator or Reno, Sparks, or Washoe emergency-management agency had issued a public statement on this winter's outlook. TMWA's most recent water-supply outlook is from April 30, 2026, before the event was confirmed, and is not tied to it. That silence is a snapshot as of this writing, not a claim that agencies will never speak.
The ski industry had already moved. On August 18, 2026, Vail Resorts Mountain Division president Bill Rock called the possibility of blockbuster snowfall optimistic and said the company was taking an aggressive approach to snowmaking. CBS Sacramento the same day reported projected openings at Mt. Rose, Heavenly, Northstar, Palisades Tahoe, Boreal, and Kirkwood for late November and early December, tied to that Super El Niño forecast. Heavenly and Northstar were listed for November 20, Kirkwood for December 4, all condition-dependent. Commercial operators have acted in public. The agencies responsible for flood safety and water management had not, as of this check.
CNRFC already runs a live ensemble for the Truckee at Farad. This entry does not redraw it. The traces are theirs. The outlook module on Story links out.
This could be a good winter, a normal one, or a bad one. Nobody honestly knows which yet.