Radio Propagation 10m is performing well across the Atlantic from Europe this afternoon (yellow lines on the maps). The first image is FT8 received by my station on PSK Reporter (Airspy HF+ and Youloop). The second image is reports from all stations in multiple modes as shown on my website.

Space Weather Solar tornadoes four times the diameter of Earth dancing on the NW limb. #spaceweather #nasasdo #g7izu Video: https://universeodon.com/@g7izu/115264812245269936

Extreme weather has badly damaged a weather radar in New Zealand. In a post on Facebook, Met Service New Zealand shared a picture and details of how a massive lightning strike severely damaged the radome and electronics of the radar at the site near Hokitika.

Universeodon (Mastodon instance) outage My main social media host Universeodon has suffered a major outage. The phone app Tusky is also affected and is unresponsive. Owners Atlas Media Group Ltd report an outage which is affecting their servers. #universeodon #g7izu

Space Weather A mahoosive (scientific term) long filament is visible on images from Goes 19's SUVI instrument on the NW limb of the sun. #spaceweather #goes19 #g7izu

Space Weather Despite some suggestions that the sun was waking up, there's been precious little activity in the last few days. Apart from a single M1.5 flare in the centre of the disc on the 19th, the XRay flux has been hovering around the C1 to C3 level for most of the last week. #spaceweather

BBC News - New evidence confirms Yorkshire North Sea asteroid impact. Scientists have found proof that an asteroid hit the North Sea more than 43 million years ago causing a huge tsunami and leaving a 1.9 mile (3km) wide crater under the seabed.

Space Weather (history) Seventy-five years ago, a massive geomagnetic storm disrupted electrical power, interrupted radio broadcasts, and illuminated the night sky in a World War II battle theatre.

Radio Propagation HF propagation looks like it's improving this week as the sunspot numbers rise. The last week or so has been quite poor on the bands.

Earthquake Another approx M7.4 to M7.8 earthquake off the Kamchatka Peninsula at 18h58 UT 18 Sept. No tsunami warnings seen (yet). #earthquake #g7izu

Space News NASA's Solar Dynamics Observatory data is have issues since 13 Sept. A note on the SDO data retrieval website states:

Space Weather A brief G3 geomagnetic storm kicked off this morning triggering some very nice auroras. Amateur radio operators in Europe reported contacts down to ~52°N. #spaceweather #aurora #g7izu

Uncanny... #spaceweather #g7izu

Windoze Why have I only just discovered that displaying the seconds on the taskbar clock is now a thing? Apparently it was brought in as an option some years ago. :thinkSpin: #windows11 #g7izu

Satellite radio spectrum: S-Band Scott Tilley (Twitter @coastal8049) is sounding the alarm over a wayward satellite ICO G-1 [32763, 2008-016A] which is transmitting broadband noise across the S-Band between 2,200 and 2,300 MHz. #spectum #satellite #g7izu

Radio Propagation The 40m band is supporting some good regional propagation across the UK and Europe this evening. The usual interfering data traffic is blocking the lowest end of the band. #radiopropagation #amateurradio #g7izu Video: https://universeodon.com/@g7izu/115187279750223279

Space Weather A strong geomagnetic sub-storm is in progress. Aurora may be visible at high latitudes in Scandinavia and as far south as northern England. #spaceweather #aurora #g7izu

Space Weather Aurora is visible on a camera at Lyngen, Norway. A moderate geomagnetic substorm is in progress at high-latitudes. https://www.youtube.com/embed/vuHCnnjijgI #spaceweather #aurora #g7izu

Radio Propagation Patches of "good" to "strong" tropospheric radio propagation are drifting eastwards across northern Europe, creating boosts for the various VHF contests that are running today. I've been hearing a station 450km to my east from Germany on 2m USB using a discone.

Space Weather GLE Alert: A Forbush Decrease (drop in the rate of galactic neutrons detected on the Earth's surface) has just been recorded by detectors around the world. The detected neutron level at the Oulu detector in Finland dropped to a maximum of around 14% at 01h UT 07 Sept. Rates then recov

Space Weather Aurora Alert: Mid-latitude aurora is being reported by amateur radio operators down to ~52°N over Europe and the UK. This auroral radio contact map shows all reported contacts for the last four hours between 15h UT until 19h00 UT. #radiopropagation #amateurradio #aurora #g7izu

Radio Propagation Sporadic-E: Es clouds over Poland are raising the MUF above 88 MHz in the region. #radiopropagation #amateurradio #fmdx #g7izu

Space Weather Aurora Alert: Here comes round 2! Mid-latitude aurora is being reported by amateur radio operators down to ~53°N over Europe. #spaceweather #aurora #g7izu

Space Weather Geomagnetic Storm Update: Conditions reached G2 levels briefly overnight. A G3 watch remains in effect for today as a second storm is expected. Visual aurora was spotted as far south as the UK and France and central US states. Here are some pictures. #spaceweather #aurora #g7izu

Space Weather The first of a two solar storms is just reaching Earth now. Magnetometers are starting to react the change in the solar wind. Also the solar proton storm that was slowly increasing in strength is having a rapid surge in activity. #spaceweather #g7izu

Space Weather Two solar storms are incoming. A geomagnetic storm is expected tonight which may reach G2 level - strong aurora at high-latitudes and possibly to the northern mid-latitudes is possible. Arrival times suggest between 20h 01 Sept and 06h 02 Sept (UT).

Radio Propagation Sporadic-E: Strong Es clouds over north-east Europe are pushing the MUF above 88 MHz. #radiopropagation #fmdx #g7izu

Space Weather Solar Flare Alert: A long-duration flare peaked to M2.7 at 20h01 UT 30 Aug, and just ended at 21h16 UT. The flare originated from AR4199, which was looking so promising for a major flare when it appeared over the limb a few days ago. It is now almost earth-facing.

Radio Propagation It's starting to look like it'll be another good day for OIRT and FM DXing in Europe as sporadic-E builds to the east. OIRT FM from Belarus is being reported into Ireland. #radiopropagation #g7izu

Forwarded on behalf of my friend and amateur radio supremo Peter Taylor, G8BCG: It's a Ham Radio thing!

Radio propagation Sporadic-E: A burst of Ukraine Radio Emmanuyil on 69.26 MHz OIRT-FM. #radiopropagation #g7izu Video: https://universeodon.com/@g7izu/115102095323661684

Radio Propagation Sporadic-E: Double-hop Es on FM band 2 are being reported between Finland and NW Spain at 3102km, also between Finland and Mallorca at 2855km! #radiopropagation #amateurradio

Space Weather: Solar flare alert There were four flare peaks >M1 during the last 24 hours: M1.2 @ 15h18 UT 25 Aug M1.1 @ 15h36 UT 25 Aug M3.3 @ 00h30 UT 26 Aug M4.5 @ 05h24 UT 26 Aug

My new book exists! I’m thrilled to have received the first physical copies of ‘Space Hazards’, which publishes in 17 days! If anyone is interested in astronomy and/or its intersection with society, then this book is for you. Available to pre-order now, from all good bookshops!

Radio Propagation As the blocking high-pressure over Europe begins to lose out to ex-hurricane Erin, strong tropospheric radio propagation is affecting the west of Europe. Spanish FM is strong into the southern UK this afternoon. #radiopropagation #amateurradio #g7izu

Space Weather ALERT: Proton Event 10MeV Integral Flux exceeded 10pfu A big halo CME that occurred behind the sun on 12 Aug has caused an electron and proton radiation storm. Arctic and Antarctic regions will suffer degraded HF communications for a few days. #spaceweather #g7izu

Space Weather Solar Flare Alert

Radio Abuse Illegal French "freebanders" are taking over the 6 MHz aero band (yet again), interfering with safety of life frequencies. #radiopropagation #freeband #scum #g7izu Video: https://universeodon.com/@g7izu/115074194790824586

Space Weather A spectacular CME, caused by a prominence eruption, was observed this morning. The CME was not earth-directed so is unlikely to affect us. #spaceweather #g7izu

Radio Propagation Sporadic-E is causing high MUF over parts of Europe now. #radiopropagation #amateurradio #g7izu

Radio Propagation Sporadic-E: High MUF between UK and Italy above 88 MHz, and more generally across Europe. #radiopropagation #amateurradio #g7izu Video: https://universeodon.com/@g7izu/115049047756379880

Space Weather There are three real-time solar observatories for monitoring the solar wind: ACE, DISCOVR and SOHO. These are all located at the Sun-Earth Lagrange Point "L1", between the Sun and Earth. DISCOVR (10 years old) went offline a month ago on 15 July.

Radio Propagation Lots of tropospheric activity is being reported on the 2m band around Europe - mostly France - this morning. Maybe a contest? #radiopropagation #amateurradio #g7izu

The new #SpaceWeatherWoman forecast is up! Learn when the big coronal hole entering the Earth-strike zone will bring #aurora. Watch GPS & radio communication continue to be disrupted after the recent #solarstorm & find out what our Sun is cooking on the farside! www.patreon.com/posts/136605...

Terrestrial Weather/Wildfires Smoke from terrible wildfires in Spain and Portugal is spreading north-eastwards across Northern Europe. #wildfires #europe #zoomearth Video: https://universeodon.com/@g7izu/115029222150786304

Starlink Gatecrash Whilst monitoring the Perseids meteor shower using the CAMRAS websdr, a train of Starlink satellites gate-crashed proceedings at 03h14 UT 12 Aug. #perseids #starlink #g7izu

Radio Propagation Sonde monitoring: I am receiving the VE1EP High-Altitude Balloon on 14.097 MHz WSPR mode. This remarkable HAB is now making its second circumnavigation of the northern hemisphere, having been launched from Vancouver on 17 July 2025. Full tracking page:

Space Weather The west limb of the solar disc has been lighting up with several minor flares in the last few days. The largest of eight flares between 9th Aug and now (>M level) was M2.2. #spaceweather #g7izu

Radio Propagation High pressure across northern and western Europe is creating some good tropospheric propagation in the VHF/UHF bands. I'm seeing AIS signals from right across the South-West Approaches of the English Channel. #radiopropagation #amateurradio #g7izu

Space Weather Perseids: I recorded a number of quite large reflections from the CAMRAS WebSDR last night. Attached are some screen captures. Some of the reflections were so strong that the receiver was being overloaded. [Note: The times at the top are h:mm:ss since the start of recording, which