Feature

Space Weather & Aurora Forecasts

Monitor solar activity, geomagnetic storms, and aurora potential. WeatherAI brings space weather data and live solar imagery to your iPhone for aurora hunting and understanding solar impacts.

Availability, coverage, update frequency, and alert delivery vary by data source, region, subscription plan, device permissions, and service conditions. Space weather indices are planetary averages and forecasts, not a local guarantee of aurora visibility.

Track Aurora & Solar Activity

WeatherAI brings you live space weather data from NOAA's Space Weather Prediction Center. Monitor geomagnetic activity, solar flares, and aurora forecasts, perfect for aurora hunters and space weather enthusiasts.

Illustrative examples, open the app for current NOAA data

Example: K-Index Summary

A Kp 5 summary can explain that a minor geomagnetic storm is underway and that aurora visibility still depends on your location, darkness, and cloud cover.

Example: Solar Activity Summary

A solar-activity summary can show a detected flare, an estimated CME arrival window, and any NOAA geomagnetic storm watch that has been issued.

Space Weather Features

K-Index Monitoring

Track the planetary K-Index to understand current geomagnetic activity levels and aurora potential.

3-Day Forecasts

NOAA SWPC forecast discussions for the next 3 days. Plan your aurora viewing opportunities in advance.

Solar Imagery & CME Loops

View static and animated imagery of the Sun, including coronagraph and CME loops, to watch recent eruptions unfold.

Solar Activity

Monitor solar flares and coronal mass ejections that drive geomagnetic storms and aurora displays.

AI Summaries

Complex space weather data translated into plain language. Understand what it means for aurora viewing.

NOAA SWPC Data

Direct data from NOAA's Space Weather Prediction Center, the authoritative source for space weather.

Aurora Visibility Where You Are

A visibility readout from Excellent to None, worked out with NOAA's rule of thumb for how far the aurora oval reaches at the current Kp, measured in geomagnetic latitude for your location.

Viewing Conditions

When it gets dark enough to look, how much cloud your forecast shows in the way, and how bright the moon is, for now or for the next dark hours. It is a checklist of conditions, not a score or odds.

Chart Freshness

The X-ray, proton, and solar wind charts say when they are showing an older copy, with the time of the newest reading.

Tool

Sunrise and Sunset Calculator

Find sunset and twilight times for your viewing spot on the night you plan to go out.

Tool

Moon Phase Calculator

Check the moon phase for any date, since a dark sky makes a faint aurora easier to see.

Chase the Northern Lights

Download WeatherAI and track space weather on your iPhone. It is free to download on iPhone, iPad, Mac, and Vision Pro.

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Frequently Asked Questions

What is the K-Index?

The planetary K-Index (Kp) measures geomagnetic activity on a 0-9 scale. Values of 5+ indicate geomagnetic storms that can produce visible aurora. WeatherAI shows current Kp values from NOAA SWPC.

Can I get aurora alerts?

WeatherAI can notify you when NOAA observes a geomagnetic storm at or above the level you choose (G1, G2, or G3), and when a solar flare reaches the class you pick (M1, M5, or X1). Whether the aurora is visible where you are depends on your latitude, darkness, and cloud cover, so treat a storm notification as the cue to go and look. The Space Weather screen also shows aurora visibility for your location and tonight's viewing conditions: darkness, cloud cover from your forecast, and the moon.

What solar data does WeatherAI show?

WeatherAI displays solar wind speed and density, interplanetary magnetic field data, X-ray flux, sunspot numbers, and geomagnetic storm forecasts from NOAA's Space Weather Prediction Center.