Will it snow this winter? NOAA's outlook cannot say — here is what it can

If you arrived here wanting to know how much snow is coming, the honest answer is that NOAA's winter outlook does not tell you, and it is not supposed to. Its precipitation maps combine rain and melted snow into a single measure and cannot say which of the two will fall in any given place. That limitation is built into the product, not an oversight in it. What the outlook does offer is a read on the odds for your region, and this year it carries an unusually confident number.

The seasonal winter outlook issued by NOAA's Climate Prediction Center on 16 July carries an unusually confident number in it. Forecasters put the odds of El Niño continuing into early spring 2027 at 97 per cent, and the odds of it reaching very strong intensity between October and December at 81 per cent.

El Niño is a warming of the central and eastern tropical Pacific that shifts where the jet stream sits. When it is strong, the storm track tends to run further south across North America than it otherwise would. That single mechanism explains most of what the outlook says.

The regions favoured for above-normal precipitation form a band across the southern half of the country: Southern California and parts of the Sierra Nevada, Arizona, New Mexico, southern Colorado and Utah, the southern Plains, the Gulf Coast, the Southeast and the eastern United States.

The regions favoured for below-normal precipitation are the mirror image, sitting to the north: the Pacific Northwest, northern Idaho, Montana, Wyoming and the northern Plains.

Temperatures lean above normal across much of the West, the northern tier, the East Coast and Alaska. The central and southern interior is given equal chances of above, near or below normal, which is the outlook's way of saying the signal there is not strong enough to call.

What the outlook does not say is the part most readers want, and the caveats are worth taking literally rather than skimming. It does not predict snowfall totals. Precipitation in these maps combines rain and melted snow, and the outlook cannot say which one will fall in a given place. It does not predict individual storms, which are not forecastable at this range. And a lean toward above-normal temperatures does not rule out major snowstorms or Arctic outbreaks; a warm season average and a severe cold snap are entirely compatible.

One further detail is easy to miss. This particular outlook covers January through March 2027 and does not include December 2026, so the first month of what most people would call winter sits outside it.

There is a further limit that applies to every seasonal outlook, not just this one. These maps express probabilities relative to a thirty-year normal, so a region shaded for above-normal precipitation is not being promised a wet winter; it is being told the odds have tilted. A season can land in the unfavoured third of the distribution without the forecast having been wrong, which is a distinction that survives poorly in headlines.

Two words worth clearing up, because both send people to this page.

**"Super El Niño"** is not a NOAA classification. The official scale tops out at "very strong", which is the category the 81 per cent figure above refers to. "Super" is media shorthand for events at the high end of that range, and it carries no defined threshold — so when you see it, check whether a number is quoted alongside it.

**The Farmers' Almanac** publishes regional winter forecasts months ahead, including snowfall totals. NOAA does not, and the difference is not caution. Seasonal snowfall forecasting has very little demonstrated skill, which is why the Climate Prediction Center issues probability tilts for precipitation and temperature and stops there. The two are not rival forecasts of the same thing; one is making a claim the other has decided the evidence does not support.

The practical reading is narrow but real. A southern-shifted storm track raises the odds of a productive season for the southern half of the western mountains and raises drought and fire concerns for the Pacific Northwest and northern Rockies. Those are shifts in probability across a season, not a schedule. Anyone making a decision that depends on a particular week of weather will still be waiting on forecasts issued days ahead, not months.

So where does a snow answer come from? For a specific storm, from National Weather Service forecasts issued days ahead — that is the range at which snowfall becomes predictable at all. For the season as a whole, it largely does not exist: seasonal snowfall forecasting has very little demonstrated skill, which is precisely why NOAA declines to publish one. Maps promising winter snowfall totals by region are going beyond what the underlying science supports, whoever is publishing them.