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G7IZU Radio Reflection Detection @g7izu.bsky.social · 01/10/2026

Space Weather NOAA has issued a G1 geomagnetic storm watch for Friday 02 Oct and Sunday 04 Oct. There is no watch issued for Saturday 03 Oct. #spaceweather #g7izu

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G7IZU Radio Reflection Detection @g7izu.bsky.social · 29/09/2026

Space Weather A large west-side filament eruption that erupted yesterday (28 Sept) has produced a solar storm that will cause us a glancing blow in a few days. Additionally, the fast solar wind from a large trans-equatorial coronal hole will become geo-effective in three to four days.

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G7IZU Radio Reflection Detection @g7izu.bsky.social · 29/09/2026

UK & Ireland Grid Monitor The grid monitor received another update today to fix a fault with Rep of Ireland power cuts reporting. New features also allow mouse over notes, giving details for each power cut on the map, and a new plot showing "customers off by operator".

UK & Ireland Grid Monitor Power Cuts Map

UK & Ireland Grid Monitor Power Cuts Map with mouse tooltip data

UK & Ireland Grid Monitor Power Cuts Map wind gust/cuts correlation graph

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Reposted by G7IZU Radio Reflection Detection

Paul Voosen @voosen.me · 28/09/2026

New Horizons is now *three days away* from shutting off its two heliophysics instruments, simply because NASA has not provided the $2M in funding it had promised to the mission last year or this year. There is no science basis for shutting these off. Our earlier coverage:

science.org

NASA’s New Horizons mission may shut down two instruments over lack of funding

Decision risks “incalculable loss” of data from the edge of the Sun’s influence, scientists say

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G7IZU Radio Reflection Detection @g7izu.bsky.social · 26/09/2026

UK & Ireland Grid Monitor - UPDATE The grid monitor is had some major updates since the last version.

UK & Ireland Grid Monitor - Forecast view

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G7IZU Radio Reflection Detection @g7izu.bsky.social · 26/09/2026

UK Electricity Grid The UK grid is flirting with a higher than normal operating frequency this morning with frequent short excursions above the normal operational limit of 50.2 Hz, indicating too much generation for the current load.

UK & Ireland Energy Monitor
UK & IRELAND ENERGY SYSTEM - LIVE

RISK System risk elevated
Grid frequency 50.207 Hz, 0.207 Hz off nominal — system inertia reduced (CGRI 0.318).

IMPORT Notable import dependence
Net imports are supplying 29% of demand (6.472 MW).

SYSTEM FREQUENCY
SYSTEM RISK +0.226 AMBER Hz

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G7IZU Radio Reflection Detection @g7izu.bsky.social · 23/09/2026

Space Weather Sudden Storm Commencement: The DST (Disturbance Storm Time Index) spiked to +24nT at 13h UT, suggesting imminent geomagnetic storm conditions, which could follow within hours. The solar wind density is gradually increasing, but is still quite low.

Space Weather Ops Dashboard by G7IZU - DST plot

Space Weather Ops Dashboard by G7IZU - solar wind parameters plot

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G7IZU Radio Reflection Detection @g7izu.bsky.social · 22/09/2026

Radio Propagation High pressure across northern Europe is again producing good tropo propagation on VHF. Ship AIS is being received from over 200nm into the Bay of Biscay from Plymouth, UK. #shipais #radiopropagation #amateurradio #g7izu

AIS map view (Plymouth-Hartley receiver)

AIS range (Plymouth-Hartley receiver last 12 hours)

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G7IZU Radio Reflection Detection @g7izu.bsky.social · 21/09/2026

UK Electricity Imported electricity is currently the largest provider of the UK's energy mix. www.tvcomm.co.uk/g7izu/software

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G7IZU Radio Reflection Detection @g7izu.bsky.social · 18/09/2026

UK & Ireland Electricity A major power cut has hit Northern Ireland. Over 130,000 customers have lost power this morning. #ukgrid #NIE #g7izu Video: universeodon.com/@g7izu/11729152582…

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G7IZU Radio Reflection Detection @g7izu.bsky.social · 16/09/2026

Space Weather A minor G1 geomagnetic storm watch is in effect today. Last night saw very minor auroral activity at high-latitudes. Storm conditions now appear to be subsiding, although the solar wind speed (blue line on the graph) remains steady at around 550km/s. #spaceweather #g7izu

Space Weather Ops Dashboard - solar wind parameters

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G7IZU Radio Reflection Detection @g7izu.bsky.social · 15/09/2026

Space Weather A very fast solar wind stream is starting to hit at L1 (and soon the Earth) . This may be the fast wind from two coronal holes that have just passed the solar meridian. #spaceweather #g7izu

NASA/SDO AIA211 - coronal holes north and south of the equator have just passed the meridian. Fast solar wind streams blast out from coronal holes, enhancing the solar wind.

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G7IZU Radio Reflection Detection @g7izu.bsky.social · 14/09/2026

Radio Propagation High pressure over Northern Europe is producing tropospheric ducting, extending the range of VHF and UHF signals. My AIS station in Plymouth is receiving ship AIS signals from over 250nm (460km) away across the English Channel and into the Bay of Biscay. #shipais

AIS plotter with a map of South-West UK and NW France

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G7IZU Radio Reflection Detection @g7izu.bsky.social · 14/09/2026

Space Weather Proton and electron fluxes are rising following a filament eruption.

Solar proton flux at L1 (EPAM) - solid lines
Solar proton flux at GOES (geostationary orbit) - blue dotted line

Solar electron flux at L1 (EPAM) - solid lines
Solar electron flux at GOES (geostationary orbit) - blue dotted line

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G7IZU Radio Reflection Detection @g7izu.bsky.social · 09/09/2026

G7IZU RRD Website - down for maintenance My website at tvcomm.co.uk/g7izu is currently down as I work through a PHP upgrade that went south and broke the site. Users may see a message "There has been a critical error on this website."

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G7IZU Radio Reflection Detection @g7izu.bsky.social · 08/09/2026

Space Weather A G1 (minor) geomagnetic storm is continuing. A G2 watch is in effect for tomorrow (09 Sept).

Electron flux plots at L1 (solid lines) and GOES (dotted lines)

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G7IZU Radio Reflection Detection @g7izu.bsky.social · 08/09/2026

Space Weather The geomagnetic storm strength reached G1 (minor) level at 07h30 UT this morning. Further bursts of substorm activity will continue as this storm progresses, giving further opportunities to see aurora at the higher latitudes. #spaceweather #aurora #g7izu

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G7IZU Radio Reflection Detection @g7izu.bsky.social · 07/09/2026

Space Weather: Geomagnetic Storm Update Geomagnetic activity is continuing to build as a number of CMEs reach Earth. Aurora has been seen at high latitudes.

G7IZU Ionoscope - estimated auroral zone

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G7IZU Radio Reflection Detection @g7izu.bsky.social · 07/09/2026

Space Weather Disturbed geomagnetic conditions are continuing. Significant solar wind dynamic pressure of 30 cm^3 is being recorded at L1, along with a marked negative Bz swing to ~ -12nT.

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G7IZU Radio Reflection Detection @g7izu.bsky.social · 07/09/2026

Space Weather CME arrival: The first CME in a potential series has arrived overnight - somewhat earlier than predicted. IMF Bz is strongly southward and substorms are now hitting polar regions. HF radio will be degraded at high latitude and polar regions - aurora is possible.

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G7IZU Radio Reflection Detection @g7izu.bsky.social · 06/09/2026

Space Weather Incoming Solar Storms: In recent days several active regions on the sun have launched many CMEs (coronal mass ejections). Only a small number of these appear to be Earth-directed. AR4520 launched an M1.0 flare which produced yesterday's high-energy proton storm.

ELEVo (Austrian Space Weather Office). Earth is the green dot to the right of the sun.

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G7IZU Radio Reflection Detection @g7izu.bsky.social · 04/09/2026

GB Grid Monitor: One for the data geeks! You may know that I recently created an energy and environment dashboard that's available to download on Github.

Grid Monitor by G7IZU - frequency monitor

Grid Monitor by G7IZU - generators online now

Grid Monitor by G7IZU - generation history plot

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G7IZU Radio Reflection Detection @g7izu.bsky.social · 02/09/2026

Space Weather An M3.0 flare peaked at 19h21 UT 02 Sep. Type II and IV radio emissions were observed, with a CME being observed in imagery. The flare originated on the east limb so the CME will not be Earth-directed. #spaceweather #g7izu

Space Weather Ops dashboard by G7IZU - solar X-ray flux plot.

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G7IZU Radio Reflection Detection @g7izu.bsky.social · 01/09/2026

Geostationary Eclipse Season As we head towards the autumn equinox, the angle between the plane of the ecliptic and the Earth's equatorial plane causes the Sun, Earth, and geostationary satellites to align.

Space Weather Ops Dashboard Solar X-ray FLux plot - showing data breaks caused by eclipses by the Earth

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G7IZU Radio Reflection Detection @g7izu.bsky.social · 30/08/2026

Space Weather Minor geomagnetic storming is continuing today with substorms occasionally affecting high and polar latitudes. Conditions should be calming soon. HF radio propagation will be affected nearer high latitudes. #spaceweather #aurora #g7izu

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G7IZU Radio Reflection Detection @g7izu.bsky.social · 29/08/2026

Ship AIS Major search & rescue operation is ongoing in the western English Channel for a possible sunken fishing vessel. Two SAR aircraft and three lifeboats and at least six or seven fishing boats are searching an area approximately 45km south-west of Plymouth. Lifeboats have spotted life-rafts bu

Ship AIS plotting map centred on approximately 50.0°N 4.42°W.

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G7IZU Radio Reflection Detection @g7izu.bsky.social · 28/08/2026

Space Weather A G2 geomagnetic storm is expected today. Several incoming solar storms may give glancing blows to the Earth, and we'll also be under the influence of a southern-hemisphere coronal hole.

Solar Wind Parameters. The magnetic polarity (Bz) is strongly negative.

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G7IZU Radio Reflection Detection @g7izu.bsky.social · 26/08/2026

My GB Energy Monitor Python/browser app has been updated yet again!

Rain Alarm weather radar (not included in Grid Monitor)

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G7IZU Radio Reflection Detection @g7izu.bsky.social · 26/08/2026

Space Weather Incoming solar storm: NOAA has issued a G1 storm watch for 27 Aug and a G2 watch on 28 Aug. The M6.9 flare at 10h02 UT yesterday (25 Aug) launched a CME that was substantially Earth-directed. #spaceweather #g7izu Video: universeodon.com/@g7izu/11715863792…

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G7IZU Radio Reflection Detection @g7izu.bsky.social · 25/08/2026

Space Weather An M6.9 solar flare peaked at 10h02 UT 25 Aug. A moderate R2 radio blackout affected Europe, Africa and the Middle East. The flare originated from Earth-facing active region AR4513.

G7IZU Ionoscope DRAP and amateur radio propagation layers

NASA/SDO AIA131 showing the flare location

NASA/SDO AIA211 showing the coronal hole in the southern hemisphere

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G7IZU Radio Reflection Detection @g7izu.bsky.social · 24/08/2026

Space Weather Solar flare is in progress, peaked at M1.7 at 19h42 UT 24 Aug. A minor R1 radio blackout is affecting eastern Pacific, Central and North American regions. The green region on this globe represents the area of D-layer absorption on the Earth's sunlit side. #spaceweather #g7izu

G7IZU Ionoscope DRAP layer - flare at M1.7

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G7IZU Radio Reflection Detection @g7izu.bsky.social · 23/08/2026

GB Energy Monitor (update) New versions of the Python server and html files (v260823.8) were uploaded to Github this morning.

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G7IZU Radio Reflection Detection @g7izu.bsky.social · 22/08/2026

Space Policy The Brussels Times: The European Union told the UN Conference on Disarmament in Geneva that it wants new norms of “responsible behaviour” in outer space alongside future legally binding agreements to help prevent an arms race in space.

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G7IZU Radio Reflection Detection @g7izu.bsky.social · 22/08/2026

Marine Band Radio interference What on earth is going on on VHF marine channel 16 in the Plymouth area? This noise has been ongoing for a long time. I don't know how local it is to me. Ch16 is the international calling and distress channel. #marine #marineradio

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G7IZU Radio Reflection Detection @g7izu.bsky.social · 22/08/2026

Space Weather Proton storm building A solar energetic particle storm is building following an eruption from beyond the east limb. Goes >=10MeV proton levels are approaching the S1 minor radiation storm level. Electron levels are also rising. #spaceweather #g7izu

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G7IZU Radio Reflection Detection @g7izu.bsky.social · 21/08/2026

Space Weather Another look at this morning's long duration flare which peaked at M1.6 at around 09h50 UT. The flare originated from AR4507 which was slightly beyond the west limb. This has become the customary location for large flares during this solar cycle!

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G7IZU Radio Reflection Detection @g7izu.bsky.social · 21/08/2026

Space Weather A long duration M-level flare is in progress. The flare started at 09h30 UT 21 Aug and reached a maximum of M1.6 between 09h50 and 10h25 UT. The X-ray flux is now falling very slowly and is currently at M1.3. A minor R1 radio blackout is affecting Africa and southern Europe.

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G7IZU Radio Reflection Detection @g7izu.bsky.social · 20/08/2026

Space Weather A moderate M8.1 solar flare peaked at 11h42 UT 20 Aug. An R2 radio blackout affected Africa and Europe. This is the third flare >M level within 24 hours. A type II radio emission was detected at 1,200km/s, indicating that a CME was released. #spaceweather #g7izu

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G7IZU Radio Reflection Detection @g7izu.bsky.social · 20/08/2026

Space Weather Moderate solar flare in progress, now above M6. Standby for updates. #spaceweather #g7izu

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G7IZU Radio Reflection Detection @g7izu.bsky.social · 20/08/2026

Space Weather An M1.8 solar flare peaked at 08h04 UT 20 Aug. A minor radio blackout is affecting eastern Africa and the Middle East. This is the second M-flare in 24 hours. There was an M1.0 yesterday at 18h53 UT 19 Aug. #spaceweather #g7izu #spaceweather

G7IZU Ionoscope by G7IZU - DRAP and amateur radio propagation layers

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G7IZU Radio Reflection Detection @g7izu.bsky.social · 19/08/2026

Space Weather Continuing minor geomagnetic activity is causing HF radio to be degraded. Proton flux is also increasing out at L1 so further degradation may follow in high latitude and polar regions. #spaceweather #g7izu

Space Weather Ops Dashboard by G7IZU Proton radiation plots

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G7IZU Radio Reflection Detection @g7izu.bsky.social · 18/08/2026

Space Weather Another burst of geomagnetic activity is hitting Earth. A minor G1 storm is again in progress.

Space Weather Ops Dashboard by G7IZU Substorm Monitor

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G7IZU Radio Reflection Detection @g7izu.bsky.social · 18/08/2026

Earthquakes A series of moderate, shallow earthquakes has been hitting southern Spain since an M5.2 hit at 23h04 UT on 14 Aug. This morning there have been at least four quakes measuring between M4 and M4.9. These are all clustered in a region near Granada in Andalusia.

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G7IZU Radio Reflection Detection @g7izu.bsky.social · 18/08/2026

Space Weather Minor G1 geomagnetic storm conditions were reached at 05h UT this morning. The Kp level reached KP 5. Conditions are now calming, but the solar wind will remain disturbed for most of the day. HF propagation is generally not great, but is worse over the polar regions. #spaceweather

Space Weather Ops dashboard by G7IZU - 3-hourly Kp index for the last 7 days

Space Weather Ops Dashboard by G7IZU - solar wind parameters last 24 hours

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G7IZU Radio Reflection Detection @g7izu.bsky.social · 18/08/2026

Space Weather The solar wind is currently disturbed as a solar storm is grazing past us. The Disturbance Storm Time Index (DST) has dropped rapidly and is now at -27nT. The solar wind density is high at 15.6cm3, and wind speed is rising and is above 400km/s. Bz is currently negative. The Hp30 index

Space Weather Ops Dashboard by G7IZU - Interplanetary Magnetic Field parameters

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G7IZU Radio Reflection Detection @g7izu.bsky.social · 16/08/2026

Space Weather We had a filament eruption in the south-east quadrant yesterday. That, combined with a large far-sided blast, released a messy solar storm with some solar material heading towards Earth. Geomagnetic conditions may reach G1 levels on the 17th and/or 18th.

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G7IZU Radio Reflection Detection @g7izu.bsky.social · 15/08/2026

UK Energy Snapshot at 18h30 UT 15 Aug 2026 As we near the evening peak of demand, gas generators are supplying 32% of the electricity for the UK. Imports account for 14%, nuclear 12%, and wind 11%. Other sources such as biomass, solar, battery, pumped storage and hydro-electric make up the rest.

UK Electricity Grid supply and demand dashboard

UK Gas System supply and demand dashboard

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G7IZU Radio Reflection Detection @g7izu.bsky.social · 15/08/2026

Indonesia Earthquake There've been a ridiculous number of aftershocks following the major M7.7 quake in Indonesia yesterday. #earthquake #g7izu Video: universeodon.com/@g7izu/11710063612…

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G7IZU Radio Reflection Detection @g7izu.bsky.social · 15/08/2026

UK Energy snapshot at 13h UT 15 Aug 2026 Solar is now dominant, providing an estimated 33% electricity to the grid. Imports account for 20%, wind 15% and nuclear 12%. Gas linepack is pressurizing with supply 27.5% higher than demand. I'll post a further snapshot this evening. #ukenergyGrid

UK Electricity grid supply and demand snapshot

UK Gas system supply and demand snapshot

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