Squall: Storm Radar
Live weather radar & alerts
Only for iPhone
$9.99 · Designed for iPhone. Not verified for macOS.
iPhone
Squall is a radar viewer, not another weather app. It shows the same raw NEXRAD radar data meteorologists use — base reflectivity and velocity — rendered as a high-resolution, high-contrast overlay on a dark map, in near real time, with smooth animation and live warning polygons. The promise is simple: the real radar, fast, beautiful, and readable.
THE REAL RADAR
See actual NEXRAD base reflectivity and Level III velocity, not a smoothed consumer blob. Squall is built for storm chasers, spotters, weather enthusiasts, and anyone who wants to understand what the sky is really doing.
SMOOTH LOOPS
Animate the last several frames with play, pause, and scrub. Watch a cell build, track its motion, and read frame timestamps so you always know how fresh the data is.
LIVE NWS WARNINGS
Tornado, severe thunderstorm, and flash flood warning polygons are overlaid and color-coded by severity. Tap any polygon for the headline, expiration, and official instructions.
RADAR NEAR YOU
Squall finds the nearest radar site to your location and centers the map on you. Pick any site manually, switch products, and the app remembers your preferences.
BUILT FOR CLARITY
A dark-first map style, a perceptually-tuned color table, and sane defaults keep severe weather legible at a glance — without burying the data behind menus.
DATA & ATTRIBUTION
Radar and warning data come from NOAA / the U.S. National Weather Service (public domain). Processed radar tiles are courtesy of the Iowa Environmental Mesonet (Iowa State University). Full attributions are listed in the app.
Squall is for situational awareness and is not a substitute for official NWS warnings, local emergency alerts, or sirens.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
Refreshed the App Store preview images to better show what the app does. No changes to the app itself in this update.
The developer, Brian Boler, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Brian Boler
- Size
- 1.2 MB
- Category
- Weather
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - Mac
Requires macOS 14.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- © 2026 Brian Boler
