X  CloseVisual Aurora Borealis/Northern Lights and VHF Radio Aurora Indicators Last Updated: 13:55:11

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 figure provides a good indicator of viewing the Aurora Borealis or Northern Lights The greater the KP-Index the higher 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 signal communication at a range of upto 1000 miles or more. During strong solar activity frequencies from 28 to 433MHZ or higher allowing radio communications to be possible at mid to high latitudes .

Data Provided by http://services.swpc.noaa.gov  ©2019