Radio Propagation

Sporadic-E: High MUF upto FM band 2 is continuing over SE Europe this afternoon, as dusk approaches.

#radiopropagation
#amateurradio
#g7izu

Radio Propagation

Early season sporadic-E has raised the MUF over south-east Europe today.

This 3D fly-through was created using a new mapping backend for G7RAU's Live MUF that I created. It runs in a web browser and is under test.

Similar to the maps on my website, line colour indicates frequency. The coloured blobs show areas of high MUF (sporadic-E clouds). Purple is showing Band 2 FM reception via sporadic-E, yellow is the 10m band. As new spots appear, you see the lines propagating between ground and ionosphere as they bounce around the world.

#radiopropagation
#amateurradio
#g7izu

Space Weather

An M3.9 flare peaked at 06h24 UT 26 March. An R1 radio blackout affected the South Asia and Indian Ocean region.

#spaceweather
#g7izu

Space Weather

The G2/G3 geomagnetic storms of the last few days broke the tedium, but unfortunately it's back to the declining phase with a vengeance this week.

Activity may bump slightly in the next 48 hours due to a possible glancing blow from another minor CME. A NOAA G1 warning is in effect until midnight tonight (UT).

The solar wind remains fast at around 600km/s. Solar XRay flux has remained low for the last six days, not exceeding C3.4.

Boring!

#spaceweather
#g7izu

UK Space Weather Policy

The Register: "The UK is ill prepared for a major catastrophic solar storm"

"In 2025, the government estimated a 5-25 percent chance of a severe space weather event by 2030. However, according to the NAO, the UK is not well prepared. Despite severe space weather being added to the UK's National Risk Register in 2011, and some investment in developing the country's forecasting capabilities, the NAO warned that the government "does not yet understand the full range of possible impacts and cascading effects well."

It has also not "yet set out how resilient it would like the UK to be to severe space weather, nor what level of resilience its spending will provide."

Read more:
https://www.theregister.com/2026/03/23/nao_uk_space_weather/

#spaceweather
#ukgov
#g7izu

When it comes to catastrophic space weather, the UK is holding a cocktail umbrella

: National Audit Office warns government has little idea of how to respond in the event of a major solar storm

The Register

Space Weather

G3 Geomagnetic Storm Conditions are continuing.

Earth just passed though a "reverse shock". The solar wind is currently fast at 650km/s.

Aurora may continue at mid-high latitudes for a few more hours.

#spaceweather
#aurora
#g7izu

Space Weather

A G3 Geomagnetic Storm is in progress.

Aurora may be visible at mid-latitudes after sunset.

#spaceweather
#aurora
#g7izu

Radio Propagation

Here we see all amateur bands enabled and spots from only the last minute visible. Each band is coloured according to the scale above.

#spaceweather
#radiopropagation
#g7izu

Radio Propagation

A different perspective on radio path propagation!

This is an application I'm working on to display live DX spots on a 3D globe. Here we see the 10m to 2m bands with a live aurora layer.

#spaceweather
#radiopropagation
#g7izu

Space Weather

Mid-latitude aurora continuing, now reported by amateur radio operators down to ~50ยฐN over Europe.

#spaceweather
#aurora
#g7izu