RadarScope is a specialized display utility for weather enthusiasts and meteorologists that allows you view NEXRAD Level 3 and Super-Resolution radar data along with Tornado, Severe Thunderstorm, Flash Flood and Special Marine Warnings, and predicted storm tracks issued by the US National Weather Service. It can display the latest reflectivity, velocity, dual-polarization, and other products from any NEXRAD or TDWR radar site in the United States, Guam, Puerto Rico, Korea, and Okinawa, as well as reflectivity and velocity data from Environment Canada radars. These aren't smoothed PNG or GIF images, this is native radar data rendered in its original radial format for a high level of detail.

Whether you are scanning reflectivity for a mesocyclone's tell-tale hook echo, trying to pinpoint the landfall of a hurricane's eye wall, or looking for small features like velocity couplets in the storm relative radial velocity product, RadarScope gives you the power to view true radial NEXRAD weather radar on your Mac.

RadarScope displays tornado, severe thunderstorm, flash flood, and special marine warnings issued by the National Weather Service. You can browse the list of active warnings in the information sidebar, select a warning to view the details, and even zoom to the selected warning on the map.

Zoom in and out on the map using the mouse or pinch gestures on multi-touch trackpads. Click and drag to scroll around the map. Select one of the 155 different radar sites using buttons on the map, the full radar list in the sidebar, or your list of saved favorites in the menu bar. Tap the play button to download and animate up to 20 frames of radar data. Dynamically display the names of over 25,000 cities and towns on the map as you zoom and scroll. Move the cursor over the color legend to see the data value associated with each color. You can also copy the currently displayed map to the clipboard or save it in several common image formats.

Meanwhile, RadarScope will retrieve and display updated data automatically and intelligently (approximately every 5 to 10 minutes, depending on the radar scan strategy).

You can display Level 3 radar data from our servers, NOAA's public access web site, or use your Allison House subscriber account for radar data.

The RadarScope Pro subscription is an optional auto-renewing subscription with two different tiers to choose from. Super-res products are still available to all RadarScope users without purchasing a subscription.

RadarScope Pro Tier 1 is an annual subscription that provides access to real-time lightning data that animates along with the radar loop and up to 20 frames of radar data, including *extended loops* of Super-Res Level 2 data. Tier 1 subscribers can also access optional dual-pane and quad-pane modes for viewing multiple radar products side-by-side.

RadarScope Pro Tier 2 is an annual or monthly subscription that combines all the features in Tier 1 with more advanced features, including a 30-day archive of all radar products, estimated hail size contours, rotation (azimuthal shear) contours, and the ability to use subscription features across multiple platforms.

If you choose to buy the RadarScope Pro subscription, it will charged to your iTunes account. The subscription will be auto-renewed within 24 hours prior to the end of the current period at the same price you originally paid. Subscriptions may be managed and auto-renewal disabled via your iTunes Account Settings after the purchase. Once purchased, the subscription cannot be cancelled during the active subscription period.

WDT is committed to safeguarding your privacy online. Our Terms Of Use and Privacy Policy are available here:

Please visit our web site for more information.

What's New

Version 3.8.2

• Fixed a crashing bug when viewing Canadian radars with storm tracks enabled
• Fixed azimuth display in inspector tool
• Fixed a crashing bug when querying the cities database
• Fixed potential crashing bugs when parsing invalid data files
• Fixed a bug that sometimes preventing AllisonHouse feeds from displaying
• Fixed keyboard navigation bug

Ratings and Reviews

4.2 out of 5

26 Ratings

26 Ratings

Not that great at all.

jdog weather

So I always wanted a macbook pro and finally got one. I had GRlevel3 for my windows setup and from reading this was about the only option for Mac. Very dissapointed. Not worth 30 bucks. 2 very simple things. Number one, you cant see your location on the map. I mean come on. Even the free apps offer this. You would at least expect this out of an expensive app. Number two, also included in most free apps. You cant even adjust the opacity of the radar data over the map. Really?. Number 3, no detail roads. If there were a way to get my money back I would so do it. Guess I will just have to stick to free apps or open up my windows laptop. This app is not even close to there, no matter what radars you offer. If you dont have these simple features the radars are worthless. But for 30 bucks? Refund please.

The only weather app I go for

Laura Toeniskoetter

I have this on all my Apple products. I had the iOS version since 2012 and went back and forth on whether I neeeded this on my mac too. I live in Central Texas (Austin area) and August finally gave me that answer. I puchased the macOS version when Hurricane Harvey was still churning in the Gulf and no one was sure what part of south Texas it would hit. With friends and family back in Houston, I was able to check in on the rain and help a few of them out.

When it comes to radar, I don’t even look at other apps, just Radarscope.

Great, but not perfect


I have been a user of the iOS app for about a year now and love it. The desktop version for the Mac is just as good, although there is no way to see your current location on the desktop version. The addition of this feature would be excellent! Otherwise it offers the same great features that the mobile app does. Another thing that would make both better woild be the addition of a more detailed map.


Base Velocity, LLC
53.5 MB
Age Rating
Rated 4+
2017 © Weather Decision Technologies, Inc.


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

More By This Developer