Split Screen Maps
Keryn McMaster avatar
Written by Keryn McMaster
Updated over a week ago

The split screen is available on the PredictWind website https://forecast.predictwind.com/ using a PC or Mac computer. We have this visual set up so that you can compare two forecast models side by side.

Under each map, you have the ability to select the global models PWG/ PWE/ GFS/ ECMWF/ SPIRE/ UKMO plus the high-resolution HRRR, NAM, AROME or UKMO 2km and then adjust the resolution to suit.

If you choose, for example, PWG on one map and ECMWF on the other, you will see the two different forecasts side by side.

Here is a screen recording to show the functions of the split screen: http://share.predictwind.com/2736044afc09

Unfortunately, there is no "golden rule" for which model is more accurate. Often, there are periods where one model is better, and then it swaps around. If the models are similar, you can have more confidence in the forecast. If they are very different, it just shows the uncertainty in the situation. We provide the 6 global models PWG/ PWE/ GFS/ ECMWF/ SPIRE/ UKMO models on the Forecast Maps for comparison. With only 1 or 2 models, it can be difficult to decide on which forecast to select, but with 6 models and looking for consensus, the decision is a little easier.

To clarify the terminology of the 6 models and to understand their sources, please review this article: https://help.predictwind.com/en/articles/2884560-what-does-pwg-pwe-gfs-ecmwf-stand-for

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