Real-Time Tracking
Aurora Forecast for Rovaniemi Tonight
Live Kp index, solar wind, Bz and Rovaniemi cloud cover, the same feeds our guides use to decide where to chase the Northern Lights tonight. Updated continuously.
Loading KP Index…
Source: NOAA SWPC • Updates every 15 min
Loading solar wind…
Source: NOAA SWPC DSCOVR • Updates every 5 min
Loading weather…
Source: Open-Meteo • Updates every 30 min
Real-Time Solar Wind, Last 2 Hours
IMF, Bt & Bz (Real-Time)
nT • Negative Bz = southward (aurora favorable) • Last 2 hours from DSCOVR
Solar Wind Speed, Forecast
km/s • Above 500 = enhanced aurora • WSA-Enlil model forecast →
Proton Density, Forecast
p/cm³ • Higher density = more fuel for auroras
Bt/Bz: NOAA DSCOVR real-time • Speed & Density: WSA-Enlil forecast model • Auto-refreshes
Guide
How to Read the Data
KP Index
Measures geomagnetic activity on a 0-9 scale. KP 3+ means moderate aurora chances; KP 5+ means a geomagnetic storm with vivid, widespread displays.
Solar Wind Speed
Charged particles streaming from the sun. Speeds above 500 km/s energize the aurora. Combined with southward Bz, high speed dramatically increases aurora visibility.
Bz (North-South Field)
The most important short-term indicator. When Bz is negative (southward), Earth's magnetic shield opens and solar particles flood in, triggering auroras. The more negative, the better.
Bt (Total Field Strength)
Total strength of the interplanetary magnetic field. Higher Bt (10+ nT) means more energy is available. When paired with negative Bz, it signals strong aurora potential.
Cloud Cover
Even during strong solar storms, clouds can block the view. Our guides monitor real-time weather radar and drive to clear skies when needed.
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