Weather Alerts in IW Pro: More Control Than Ever

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IW Pro now includes a powerful set of Weather Alert controls, giving you more flexibility over what you see and how you see it.

Control official weather alerts and how they appear on the map

IW Pro displays official weather alerts from Environment Canada and the U.S. National Weather Service, and now you can fully customize how those alerts appear.

Customize the Alerts You Receive

You can now choose exactly which alerts matter to you.

Under Weather Alerts, you’ll find:

  • Canada Alerts and U.S. Alerts toggles

  • Full control over alert categories, including:

    • Tornado & Severe Storms

    • Winter Weather

    • Flooding

    • Tropical & Hurricane

    • Marine & Coastal

    • Heat & Fire

    • Wind & Air Quality

    • Geological Hazards

    • Public Safety

Choose which types of official alerts you want to see

Each category can be expanded so you can turn individual alerts on or off (for example, Blizzard Warnings, Snow Squall Warnings, or Severe Thunderstorm Watches).

Customize individual alert types within each category

This allows you to reduce noise and focus only on the alerts that matter most to you.

Turn Alerts On or Off Anytime

At the top of the section, you’ll see a simple Enable Alerts toggle.

  • Turn it on to display official alerts on the map

  • Turn it off to hide them completely

Control How Alerts Look on the Map

You can also adjust how alerts appear visually:

  • Alert Outline + Fill (on/off)

  • Outline Thickness

  • Drop Shadow

  • Transparency

Adjust how alerts appear with outlines, shadows, and transparency

This helps you balance visibility without overwhelming the radar view.

Instant Updates (IW Pro)

In addition to official alerts, IW Pro includes Instant Updates.

These are not official weather alerts. They are issued by the Instant Weather team to provide additional real-time insights, such as:

  • Rotation detected

  • Developing storm features

  • Other notable conditions

You can turn Instant Updates on or off separately, depending on how much additional information you want to see.

nstant Updates are separate from official alerts and provide additional real-time insights from the Instant Weather team

Why This Matters

Previously, it was not always clear:

  • Which alerts were being shown

  • Why certain alerts appeared

  • Or how to filter them

Now, you are in full control of both:

  • Official alerts from trusted sources, and

  • Additional insights from the Instant Weather team

If you have any feedback on the new alert settings, let us know. We are continuing to improve IW Pro based on your input.

Canadian Radar Outages Now Available in IW Pro

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We have added a new feature in IW Pro that provides more transparency around radar coverage across Canada.

You can now see when and where Canadian weather radars are experiencing outages directly on the map.

When a radar is offline or undergoing maintenance, a red radar icon will appear at that location (see image below). Simply tap or click the icon to view more details about the outage.

Screenshot 1: Red radar icon shown on the map

After selecting the icon, you will see additional information about the outage, including details provided by Environment and Climate Change Canada.

Screenshot 2: Radar outage details after tapping the icon

Previously, it was not always clear whether an issue was with IW Pro or the radar station itself. This update helps remove that uncertainty by clearly showing when a radar outage is the cause.

Outage information is based on data from Environment and Climate Change Canada:

https://www.canada.ca/en/environment-climate-change/services/weather-general-tools-resources/radar-overview/outages-maintenance.html

We are continuing to improve how radar data is displayed in the app, and this is another step toward making the experience clearer and more reliable.

Measurement tool in single mode

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There is now a measurement tool that you can uses when you are in single mode.

  1. Choose Single Mode with any of the products.

  2. Click on the small open circle on the right side of the screen.

  3. With your mouse (PC) or finger (mobile) choose the center point from which to measure and hold until you reach the point you wish to measure the distance to.

  4. The radius of the circle (distance) will be displayed on the screen.

  5. You can also use this circle to “mark” a location and then zoom out.

  6. Click on the small circle again to remove the measurement circle.

In the above example Sussex was chosen as the center mark and I picked a random distance so that when I zoomed out I could see the location of Sussex.

Recent Improvements as of Sept 6

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  • updating faster

  • no more flickering with lightning or alerts

  • no more lightning conflicts with city names

  • faster animation

  • measurement tool in single mode

  • changing products is faster

If you are having issues seeing the controls at the bottom of the screen on mobile devices please try adding IW Pro to your Home Screen.

We are also working on fixing the issues with Noise Reduction on Canadian Radars.