Written by 1AT058 Alex on 18 March 2026.

Dr. Tamitha Skov said: (update 17 March 2026): I have included the 5-Day Outlook graphics. The forecast is now open to everyone.

More info  

The March equinox or northward equinox is the equinox on the Earth when the subsolar point appears to leave the Southern Hemisphere and cross the celestial equator, heading northward as seen from Earth. The March equinox is known as the vernal equinox (or spring equinox) in the Northern Hemisphere and as the autumnal equinox (or fall equinox) in the Southern Hemisphere. 

HF propagation during the spring equinox (March) is characterized by excellent long-distance (DX) opportunities, particularly on higher HF bands (15–20m), driven by improved ionospheric conditions. The north-south paths open earlier and remain open longer due to balanced sunlight, while lower bands (40–80m) become less noisy and better for global coverage!

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eBook	[Aurora_All]	3136 kB
eBook	[IK0ZIZ_ITA]	9210 kB
eBook	[Intro_HF_Radio]	583 kB
ITU handbook	[R-HDB-32-1998-ENG]	2565 kB