So, today I had the chance to observe an example of the relative accuracy of buienalarm.nl vs. buienradar.nl

Time: ~13:00

Around 13:00 I wanted to know what the weather was going to be at 17:00, and I noticed that buienradar was predicting complete dryness, whereas buienalarm was predicting torrential rain.

Here are the screenshots:

Buienradar ~13:00

Buienalarm ~13:00

Time: ~16:00

When I checked again around 16:00, buienradar was showing more or less the same thing, while buienalarm had completely changed its mind!

Buienradar ~16:00

Buienalarm ~16:00

Time: 17:00

Sure enough, at 17:00 the weather was completely dry. Here is the view from my office window:

Of course this is just a single observation; in another observation, the roles might be reversed. It will take many more comparisons before I can tell if there is a pattern.

Cover image: “Relief map of the European Netherlands” from Wikipedia