Once again, I don't have too many updates in today's forecast. Outside of the far southern part of the southern zone, we can expect warm and mostly dry weather for the rest of this week and through the weekend. 

El Fraile, in the southern part of the southern zone, might be just far enough south for some impacts from this southerly storm track. This would result in intermittent snow showers between Wednesday night and Friday, and again over the weekend. Accumulations will be limited to a few cms during this time; however, winds are expected to be absolutely howling. 

The models continue to show a possible storm early next week, sometime in the Monday to Wednesday timeframe. Below are the latest upper-level forecasts from the American and European models for Tuesday. Both show a storm system pushing farther north into the Andes on Tuesday.

And here are the latest snow forecasts from the American and European ensembles through Thursday of next week. Both show some decent snow accumulations in the southern and central zones, with lesser snow in the north. 

Both the upper-level and snow forecasts are good signs that a storm with accumulating snow is likely next week. The amount of snow and the northerly extent of this snow are still uncertain, but we should know more in the coming days. 

Next post on Friday.

Thanks for reading the South America Daily Snow!

Luke Stone
Forecaster, OpenSnow

NEW: Forecast Range Graphs

You can now view individual forecasts from global and regional high-resolution weather models in OpenSnow. This includes forecasts from the GFS, ECMWF, HRRR, and ICON models, as well as the OpenSnow blend.

The graphs give you a behind-the-scenes look at the forecast and make it easier to see if the forecast models are in tight agreement or if there is a wide range of potential outcomes over the next 10 days.

Note: This is currently only available in the OpenSnow iOS app and website (OpenSnow.com). Android will be available soon.

Getting Started

1. Go to any location screen.
2. Scroll down under "Weather" or "Snow Summary".
3. Tap "View Interactive Chart" in the app.
4. Adjust the model, timeframe, or data view.

Why is the Forecast Range helpful?

Understand if there is high or low confidence in the forecast. If all models show a similar forecast, there is higher confidence in the forecast, and vice versa.

Dig into the details. If you have experience looking at weather model data and trust certain models or higher-resolution models, you'll be able to isolate your favorite data.

View → Forecast Range Graphs