Meteorologist Travis Roberts says the biggest weather headline right now is not simply NOAA’s new estimate that there is a 75% chance this El Niño could become the strongest on record since 1950.
For Roberts, host of the Weather With Travis YouTube channel, the more interesting story is how that powerful Pacific pattern may eventually interact with colder air building across the far north as the Northern Hemisphere loses more solar energy heading toward winter.
“75%. That’s NOAA’s new number,” Roberts said, referring to the chance of an exceptionally strong El Niño. But he quickly added that focusing only on the warm Pacific waters misses what may become the more important winter setup.
His concern is the growing contrast between warm, moisture-rich air tied to El Niño and colder air developing across Alaska, Canada and Siberia.
NOAA’s 75% Number Gets the Attention
Roberts said NOAA’s Climate Prediction Center described a 75% chance that the current El Niño could reach historic strength, potentially exceeding other events in records dating back to 1950.
He noted that the event is already considered strong.
The eastern Pacific remains warm, while the western portion closer to the International Date Line has cooled somewhat.
Roberts said some models are starting to flatten the warming trend, meaning the event may not continue strengthening at the same pace.
Even so, he said the bigger point is that El Niño is already strong enough to matter.
“Would it be the strongest on record? I think that’s still to be determined,” Roberts said.
The official outlook, he explained, still suggests a likely peak around November, followed by a gradual decline while El Niño remains strong through much of winter.
That uncertainty is important because a record-setting El Niño does not automatically tell people exactly what their local winter will look like. It changes the background pattern, but individual storms still depend on where cold air, moisture and the jet stream line up.
Canadian Model Shows a Much Colder East
Roberts spent considerable time on long-range model guidance, particularly the Canadian seasonal model.
He said that forecast shows warmer conditions in the West but a much colder central and eastern United States by December.
The cold signal becomes even more notable because El Niño can also strengthen the subtropical jet stream and bring additional Pacific moisture across the country.
Roberts said that combination immediately caught his attention.
“If it gets this darn cold in the east,” he said, while warmer El Niño-fed air remains nearby, “you’ve set up a battle zone for big winter storms.”
The Canadian model carries that colder pattern into January.
The European model is less aggressive, Roberts said, but still shows some similar features, including cooler conditions across parts of the South and warmth across Alaska.
He emphasized that he does not know which model will prove more accurate.
Still, both are showing enough of the same broad idea to make the winter setup worth watching.
The Other Story Is Happening in the Far North
Roberts argued that the changing energy balance across the Northern Hemisphere may be just as important as the El Niño itself.
As the sun angle drops and days get shorter, areas farther north begin losing more energy to space than they receive from sunlight.
He said that break-even line has already moved south through much of Canada and into the northern United States.
By October and November, that process spreads much farther south.
“This will be the driver of the cold air that we start to see develop,” Roberts said.
He pointed to Alaska, the Yukon and the Northwest Territories, where nighttime temperatures are already falling well below freezing in some areas.
Daytime highs there are increasingly settling into the 40s and 50s.
That seasonal shift may feel very distant to people in Texas, Oklahoma or Arkansas still dealing with summer-like heat, but Roberts said winter is already beginning to build in the places where cold air masses are born.
Siberia and Alaska Become Key Areas to Watch
Roberts said he will be watching Siberia, Alaska and the Northwest Territories closely over the next several weeks.
Those land areas, he explained, are where very cold air can form efficiently as heat escapes during long nights.
The Arctic Ocean itself is not necessarily the coldest source because open water and sea ice can still release heat into the atmosphere.
Roberts also compared Arctic snow and ice conditions with last year.
He said there did not appear to be a dramatic difference overall, although there may be somewhat more ice near parts of Siberia and Alaska in certain areas.
That observation is not enough by itself to predict winter, but it matters because the amount and placement of cold air across high latitudes can influence what becomes available to move south later.
This is where Roberts’ larger argument becomes interesting.
A strong El Niño may provide abundant moisture, but major winter storms still need access to cold air. If the northern cold reservoir builds strongly and is able to push south, the combination could become much more active.
More Moisture Could Mean Bigger Snowstorms
Roberts also raised the possibility that warmer-than-normal high-latitude air could actually carry more moisture.
“Warmer air holds more moisture,” he said.
His question is whether that extra moisture, when placed inside a cold enough air mass, could help models begin producing heavier snow signals later in the season.
He stressed that above-average temperatures do not necessarily mean temperatures are above freezing.
In very cold northern regions, a warmer-than-normal air mass can still easily support snow.
Roberts said he is particularly interested in a broad corridor from the Southwest through parts of the South and into areas farther north, where a strong subtropical jet could potentially interact with cold air.
He was careful not to promise specific snow events.
Still, he said the temperature contrast between warm Pacific-fed air and stronger northern cold could create the ingredients for large winter storms.
That is a much more useful way to think about El Niño than simply assuming it guarantees warmth or snow. The pattern sets the stage, but the storm itself depends on timing and alignment.
A Strong Pacific Jet Could Still Shut Off Cold Air
Roberts also warned that there are plenty of ways this setup could fail to produce a cold or snowy winter.
He recalled a recent year when a very strong Pacific jet effectively blocked Arctic air from moving into the United States.
If that happens again, a large reservoir of cold air could stay bottled up farther north.
“Everything has to line up,” Roberts said.
That is why he plans to watch the pattern continuously rather than treating the current seasonal models as a final answer.
He also advised viewers to be cautious with long-range guidance.
“Nothing’s 100%,” he said, stressing that seasonal forecasts can change significantly.
Summer Heat Still Holding Across the South
Despite all the winter discussion, Roberts said cold air will remain difficult to find across much of the South in the short term.
A strong upper-level ridge is expected to build across the southern and eastern United States, keeping temperatures unusually hot through much of the week.
He pointed to a very strong high over the southern Appalachians and said that if this pattern were happening in June or July, some areas could be facing a brutal heat wave.
The saving factor is the September sun angle.
Even with a strong ridge, the sun is weaker now than it would be during midsummer, limiting how extreme daytime temperatures can become.
Roberts expects the heat to spread east through Tuesday and Wednesday and remain entrenched across much of the South into Friday and Saturday.
He said Memphis could remain especially hot, while Texas also stays warm.
Signs of Change Show Up Next Week
The European model, however, continues to show temperatures dropping early next week.
Roberts said he is “holding my breath” on that cooler shift but acknowledged that signs of change have been appearing consistently.
That potential break would fit with the broader seasonal progression he has been describing.
The North is losing energy, cold air is gradually building, and eventually those air masses should become easier to push farther south.
For now, Roberts sees two major weather stories running at the same time.
The first is the strong El Niño in the Pacific, which NOAA says has a 75% chance of reaching historic strength.
The second is the cooling northern hemisphere, where the seasonal energy balance is already changing and cold air is beginning to organize.
By themselves, either one would be worth watching.
Together, Roberts believes they could create the kind of sharp temperature contrasts and energetic storm track that sometimes lead to a very active winter.
That does not guarantee record cold or record snow.
But it does mean the 75% El Niño headline may only be the beginning of the story.
Mark grew up in the heart of Texas, where tornadoes and extreme weather were a part of life. His early experiences sparked a fascination with emergency preparedness and homesteading. A father of three, Mark is dedicated to teaching families how to be self-sufficient, with a focus on food storage, DIY projects, and energy independence. His writing empowers everyday people to take small steps toward greater self-reliance without feeling overwhelmed.
