Mammatus Weather

YOUR WEATHER. WITH YOU.

A better view
on your phone.

Take Mammatus with you for radar, satellite, local forecasts, and severe weather tools.

Download on the App StoreGet it on Google Play

Free to download. Features and model access vary by app and subscription.

Staying on the web?

Model Lab is available on tablets and computers. Your local forecast and weather guides are ready here.

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Model coverage guideWeather guides

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Explore the forecast models

The interactive viewer needs JavaScript to load current model runs. The model coverage guide and worked weather examples remain available without it.

Read the model coverage guide →Learn to read a model map →Back to local weather
Mammatus Weather
Forecast guidance

Weather model viewer

FORECAST MAP

Connecting to the model service

MAP VIEW
Loading the latest run

Retrieving published model fields.

Waiting for model data
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LOCAL TIME
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UTC
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Published steps only←→ step space play
MAP LAYERS

Model guidance is one possible forecast outcome. Follow official forecasts and warnings.

Sources & map details

Forecast fields: Mammatus model data. Boundaries: Natural Earth and U.S. Census Bureau. Maps are rendered from numerical grids, with forecast times preserved. Shading and legends use matching units. Contours appear only when available for the selected run and hour.

MAKE IT YOURS

Export forecast

Converts the loaded graphic directly. Logo, legend, timestamps and credits are already included.

Animations include the selected map layers. Up to 48 frames per export. First-time renders can take longer.

MAP REGION

Find your forecast

Select a region to take a closer look. Your forecast hour stays in sync.

United States with selectable forecast regions

Regional graphics include county boundaries. Each frame is a complete forecast graphic. Areas outside the model’s coverage remain unshaded.

FORECAST GUIDANCE

Choose a model

DATA & ATTRIBUTION

Credits & sources

Map boundaries: Natural Earth and U.S. Census Bureau. Mammatus renders these forecast fields independently.

UNDERSTAND THE FORECAST

About this parameter

Local forecast time uses your device’s timezone. Model run times and timestamps embedded in the graphic use UTC.