Explore the atmosphere

Powerful tools.
Clear purpose.

From everyday weather to severe storms, Mammatus gives you the detail to understand what is developing—without turning the experience into a technical manual.

01 · Free & Pro

High-resolution radar

Move beyond a basic precipitation map with radar products made for closer inspection.

  • Five-frame animation and the lowest Level II tilt with Free
  • Longer loops and selectable Level II elevations with Pro
  • Inspection values in knots and mph
  • Custom color tables with Pro
02 · Pro

Storm intelligence

Follow automated detections and understand how a cell may move over time.

  • Storm-cell identification and projected tracks
  • Arrival-time markers
  • Hail and severe probabilities
  • Motion, speed, and tracking-error information

Storm tracks are algorithmic detections, not official warnings or confirmation of surface conditions.

03 · Free & Pro

Lightning

Add recent electrical activity to the radar picture without sacrificing performance.

  • Recent activity near the selected radar
  • Age-based strike colors
  • Live updating
  • Radar-centered filtering
04 · Pro

Dual & quad layouts

Compare multiple products while keeping views synchronized.

  • Single layout with Free
  • Dual and quad layouts with Pro
  • Shared lightning and overlay data
05

Tropical weather

Follow official tropical outlooks and active systems across the Atlantic and Pacific.

  • Atlantic, Eastern Pacific, and Central Pacific outlooks
  • Development areas colored by formation probability
  • Active tracks and forecast information
  • Official discussion details
06

Warnings & conditions

Keep local context close to the radar view.

  • Active severe-weather warnings
  • Current weather conditions
  • Location-based radar selection
07 · Supported coverage

International radar

Use supported German and Finnish site radar alongside U.S. NEXRAD products.

  • German DWD reflectivity and available velocity sweeps
  • Finnish local PPI reflectivity and velocity
  • Coverage and products vary by provider and site

Choose the view you need.

Start with essential weather tools for free, then unlock advanced radar analysis with Pro.

Compare Free and Pro
The app in action

Track the tropics.
Look ahead with models.

Follow active systems and move through forecast guidance in a focused interface made for iPhone.

Mammatus Weather tropical tracker showing active Pacific storms, forecast tracks, and reconnaissance aircraft
Tropical intelligenceFollow active storms, official tracks, forecast cones, flight-level winds, and reconnaissance aircraft.
Mammatus Weather HRRR composite reflectivity forecast model over the Mid-Atlantic
Forecast modelsAnimate HRRR guidance with clear valid times, model runs, frame progress, and product legends.