RadarScope is a specialized display utility for weather enthusiasts and meteorologists that allows you to view NEXRAD Level 3 radar data and severe weather warnings. It can display the latest reflectivity, velocity, and other radar products from any NEXRAD radar site in the United States, Guam and Puerto Rico. These aren't smoothed PNG or GIF images, this is real Level 3 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 NOAA's public access web site or use your Allison House subscriber account for radar data (recommended).

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 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 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.

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What's New

Version 3.6.1

• Support for 280 characters in animated GIF tweets
• Storm Total Rainfall now shows correct product when using WDT data providers

Ratings and Reviews

4.2 out of 5

14 Ratings

14 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.

Great Radar App


For studying weather and weather systems over large a large area, this app does more than a phenominal job. Has everything any meteorologist/enthusiant could really need. It would be nice if you could add a satalite or road maps layer so when you're studying weather in more smaller geographic zones you can see the impact of that system in relation to what its physically over. On the meteorology side of things, this app couldnt be any better.

Great app for mobile and Mac


I have this on iphone,ipad and now my new imac. This app works great. I love how I can put locations in my address and see exactly where people are compare to a storm or snow storm. The developers have done a great job keeping things up to data. My only complaint is I think lightening dectection should be included with the base price not an upgrade. Most people want a weather app to see the lightening.


Base Velocity, LLC
55.4 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.

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