X  Close Visual Aurora Borealis/Northern Lights and VHF Radio Aurora Indicators
Geomagnetic Storm

4 KP-INDEX

Weak Geomagnetic Storm

KP-PLANETARY INDEX

Weak High Latitude Aurora Viewing Possible

Radio Aurora Indicators

15 A-INDEX

Weak Storm

RADIO AURORA ACTIVE

High Latitude Weak Radio Aurora
50-144MHZ Possible




KP-INDEX Information

KP-INDEX provides a good indicator of viewing the Aurora Borealis or Northern Lights. The higher the Kp-Index the greater the probability of viewing. The estimated 3-hour Planetary Kp-index data is collected from ground-based magnetometers.

A-INDEX Information

A-INDEX is an indicator of possible enhanced VHF radio communication at a range of 1000 miles or more. Strong solar activity may allow long-distance radio communications at 28-433 MHz in mid to high latitudes.


Data Provided by http://services.swpc.noaa.gov  ©2020