Frequently Asked Questions

FAQ

How can I subscribe to and download the data through email?

  1. Complete the subscription form here: https://go.gov.sg/asmc-wis2-email-subscription-request-form

  1. Enter your details, ensuring your email address is correct.

  1. Select your desired topics for subscription and submit the form.

  1. Check your inbox for an email from Amazon Web Services. Click "Confirm Subscription" in the email to finalise your subscription.

  1. You'll now receive email notifications when new data is available for your chosen topics.

How can I subscribe to and download the data through an MQTT Client?

  1. In order to download WIS 2.0 data, you will require an MQTT client. MQTT explorer is one example of a free and readily available MQTT client which can be downloaded from the MQTT Explorer website.

  2. Open MQTT Explorer and add a new connection to one of the Global Brokers. As an example, we will connect to the Global Broker hosted by MeteoFrance using the following details:

    • host: globalbroker.meteo.fr

    • port: 8883

    • username: everyone

    • password: everyone

    • Turn off Validate Certificate

    • Turn on Encryption

  3. Click on the 'ADVANCED' button, remove the pre-configured topics and add the following topics to subscribe to:

origin/a/wis2/sg-mss-asmc/#

origin/#

  1. Click 'BACK', then 'SAVE' to save your connection and subscription details. Then click 'CONNECT'. Messages will start appearing in your MQTT Explorer as soon as new notification messages are available.

What are some useful links?

You may browse the technical documents and guides at the WMO Library or at the WIS2 Github