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  • Rain gauge data from water company Waternet, after quality control by KNMI. Raw data originating from a self-maintained network of rain gauges. Delivery of data is every 1-5 minutes.

  • Combined rain gauge data from water boards and water companies, after quality control by KNMI. Raw data originating from a self-maintained network of rain gauges. Delivery of data is every 1-5 minutes. Availability of measuring locations varies.

  • Dutch water board De Dommel provides KNMI with unvalidated rain gauge data, originating from a self-maintained network of rain gauges. Delivery of data is every 1-5 minutes.

  • Rain gauge data from water board Noorderzijlvest, after quality control by KNMI. Raw data originating from a self-maintained network of rain gauges. Delivery of data is every 1-5 minutes.

  • Dutch weather warnings from KNMI. Current information about weather warnings in the Netherlands in respect to conditions of iciness and snow, rain, visibility, thunderstorm, gusts, heat stress, wind/water spouts. The warnings are issued up to 48 hours in advance. The data is published in two different formats: txt and xml.

  • The warnings forecast covers the coastal waters around the Netherlands up to 30 nautical mile offshore and the greater inland waters. This area is divided into the following districts: Vlissingen, Zierikzee, Hoek van Holland, IJmuiden, Texel, Harlingen, Rottum, Delfzijl, IJsselmeer and Markermeer. The forecast contains wind warnings in force (≥6 Bft) and storm warnings. Visit https://www.knmi.nl/nederland-nu/weer/waarschuwingen-en-verwachtingen/warnings-coastal-waters-and-dutch-continental-shelf and https://www.knmi.nl/nederland-nu/maritiem/marifoon_uitleg for more information.

  • Rain gauge data from water company PWN, after quality control by KNMI. Raw data originating from a self-maintained network of rain gauges. Delivery of data is every 1-5 minutes.

  • Rain gauge data from water board Limburg, after quality control by KNMI. Raw data originating from a self-maintained network of rain gauges. Delivery of data is every 1-5 minutes.

  • Rain gauge data from water board HHNK, after quality control by KNMI. Raw data originating from a self-maintained network of rain gauges. Delivery of data is every 1-5 minutes.

  • The Marifoon forecast covers the coastal waters around the Netherlands up to 30 nautical mile offshore and the greater inland waters. This area is divided into the following districts: Vlissingen, Zierikzee, Hoek van Holland, IJmuiden, Texel, Harlingen, Rottum, Delfzijl, IJsselmeer and Markermeer. The Marifoon is issued four times a day and covers a period of 24 hours beginning at 00:00, 06:00, 12:00 and 18:00 UTC. The forecast contains wind warnings in force (≥6 Bft) and a forecast of: general synopsis, average wind direction and force, wind gusts (if  ≥ 10 knots above average wind), weather and visibility for the districts mentioned above. For the time indication, "first" or "soon" are used for a change in the weather in the first 4 hours of the time block, "later" is used to indicate a change in the last 4 hours. Visit https://www.knmi.nl/nederland-nu/maritiem/marifoon_uitleg for more information. The data is published in two different formats: txt and xml.