Tag: solar_flares

NOAA Forecasts Minor Geomagnetic Storms on October 19-20

18 Oct 2026 9:45 p.m. · Source: NOAA

NOAA's Space Weather Prediction Center reports one minor R1 radio blackout last week and warns that minor G1 geomagnetic storming is likely on October 19 and 20.

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Solar Activity Stays Low, But M-Class Flares Possible Over Next Three Days

18 Oct 2026 6:01 p.m. · Source: NOAA

NOAA reports low solar activity with four numbered sunspot regions and a 25 percent chance of M-class flares on 19, 20 and 21 October, while geomagnetic conditions are forecast to reach minor storm levels.

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Solar Activity Stays Low, Slight Chance of M-Class Flare Through 20 October

17 Oct 2026 6:00 p.m. · Source: NOAA

NOAA reports low solar activity with three numbered sunspot regions and a slight M-class flare chance, while geomagnetic conditions are forecast to build to minor storm levels by 20 October.

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Solar Activity Moderate as NOAA Forecasts Low Levels and Slight Chance of M-Class Flares

16 Oct 2026 6:02 p.m. · Source: NOAA

NOAA reports moderate solar activity with three numbered sunspot regions, quiet to active geomagnetic conditions, and a slight chance of M-class flares over the next three days.

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Solar Activity Low With Slight Chance of M-Class Flares, NOAA Reports

15 Oct 2026 6:00 p.m. · Source: NOAA

NOAA's joint USAF/NOAA report finds low solar activity with five sunspot regions, quiet to unsettled geomagnetic conditions, and a slight chance of M-class flares over the next three days.

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Solar Activity Low With Slight Chance of M-Class Flares, NOAA Reports

14 Oct 2026 7:12 p.m. · Source: NOAA

NOAA's joint USAF/NOAA report finds low solar activity with eight sunspot regions, quiet to unsettled geomagnetic conditions, and a slight chance of M-class flares over the next three days.

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Solar Activity Low as Geomagnetic Field Stays Quiet to Unsettled

13 Oct 2026 6:02 p.m. · Source: NOAA

NOAA reports low solar activity with seven sunspot regions and a slight chance of M-class flares, while geomagnetic conditions remain quiet to unsettled over the next three days.

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Solar Activity Low as NOAA Forecasts Chance of M-Class Flares

12 Oct 2026 6:02 p.m. · Source: NOAA

NOAA reports low solar activity with six sunspot regions, a chance of M-class flares and unsettled to minor storm geomagnetic conditions expected on 13 October.

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NOAA: Strong Geomagnetic Storm Hit Earth as Solar Radiation Storms Persist

11 Oct 2026 11:59 p.m. · Source: NOAA

NOAA reports R1 and R2 solar radiation storms plus G1 to G3 geomagnetic storms from October 5-11, with a minor G1 geomagnetic storm expected on October 13.

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Solar Activity Low as Geomagnetic Storm Levels Ease; Moderate Flares Likely

11 Oct 2026 6:02 p.m. · Source: NOAA

NOAA reports five sunspot regions and quiet to minor storm geomagnetic levels, with moderate solar activity and a slight chance of an X-class flare forecast for 12 and 13 October.

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Severe Geomagnetic Storm Hits Earth as Solar Wind Peaks at 904 km/s

10 Oct 2026 6:01 p.m.

Solar activity has been at high levels with five sunspot regions on the disk, and forecasters see a slight chance of an X-class flare on 11, 12 and 13 October.

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NOAA Warns of G3 Geomagnetic Storm as K-Index 7 Expected

10 Oct 2026 1:43 p.m. · Source: NOAA

NOAA issues a geomagnetic K-index warning for 7 or greater, forecasting a G3 strong storm from 1742 UTC to 2359 UTC on October 10, 2026.

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Solar Flare Triggers Moderate Radio Blackout on Earth's Sunlit Side

10 Oct 2026 11:30 a.m. · Source: NOAA

An M6.4 solar flare peaked at 1510 UTC on October 10, 2026, prompting NOAA's R2 moderate radio blackout alert for high frequency communications on the sunlit side of Earth.

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Solar Activity High as Forecasters Warn of Possible X-Class Flares

8 Oct 2026 6:01 p.m. · Source: NOAA

Solar activity has been at high levels over the past 24 hours with three numbered sunspot regions on the disk, and forecasters see a slight chance of X-class flares over the next three days.

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Moderate X-ray Flare Triggers Brief HF Radio Blackout

8 Oct 2026 12:05 p.m. · Source: NOAA

An M6.7 solar X-ray event peaked at 1548 UTC on October 8, 2026, prompting NOAA's R2 moderate radio blackout alert for the sunlit side of Earth.

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NOAA Forecasts Chance of M-Class Flares and Possible Major Geomagnetic Storm on Oct. 9

7 Oct 2026 6:01 p.m.

Solar activity is at low levels with five sunspot regions on the disk, and the chance of a major-severe storm at high latitudes on Oct. 9 is put at 40 percent.

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Solar Activity Moderate as Forecasters Eye Slight Chance of M-Class Flares

5 Oct 2026 6:01 p.m. · Source: NOAA

NOAA reports moderate solar activity with four sunspot regions, a slight chance of M-class flares over three days, and quiet to minor storm geomagnetic conditions.

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NOAA: No Space Weather Storms Observed or Expected

5 Oct 2026 12:41 p.m. · Source: NOAA

NOAA's Space Weather Prediction Center reports no storms during September 28 to October 4 and expects none from October 5 to 11, with data from NOAA, USAF, NASA and partners.

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Solar Activity Very Low as Geomagnetic Field Hits Major Storm Levels

4 Oct 2026 6:01 p.m. · Source: NOAA

NOAA reports very low solar activity with four sunspot regions, while the geomagnetic field reached major storm levels and solar wind peaked at 644 km/s.

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Solar Activity Very Low, Geomagnetic Storms Possible 04 Oct

3 Oct 2026 6:01 p.m. · Source: NOAA

NOAA reports very low solar activity with a chance of C-class flares, while unsettled to minor storm geomagnetic levels are forecast for 04 Oct before easing.

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Solar Activity Low as Geomagnetic Storm Levels Forecast for 4 October

2 Oct 2026 6:01 p.m. · Source: NOAA

NOAA reports quiet solar and geomagnetic conditions, with three sunspot regions on the disk and a chance of C-class flares over the next three days.

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Solar Activity Very Low as Geomagnetic Storms Forecast for Early October

1 Oct 2026 6:01 p.m. · Source: NOAA

NOAA reports very low solar activity with two sunspot regions, while geomagnetic conditions are expected to reach minor storm levels on 02 and 04 October.

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Solar Activity Low as Geomagnetic Storm Levels Forecast for 2 October

30 Sep 2026 6:01 p.m. · Source: NOAA

NOAA reports low solar activity and quiet geomagnetic conditions, with minor storm levels expected on day two and a slight chance of M-class flares over the next three days.

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Solar Activity Low as NOAA Forecasts Chance of C- and M-Class Flares

29 Sep 2026 6:01 p.m. · Source: NOAA

NOAA reports low solar activity with two sunspot regions, quiet geomagnetic conditions, and a chance of C-class flares plus a slight chance of M-class flares over the next three days.

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Solar Activity Very Low, Quiet Geomagnetic Conditions Forecast Through Oct 1

28 Sep 2026 6:00 p.m. · Source: NOAA

NOAA reports very low solar activity with three sunspot regions, quiet geomagnetic levels, and a slight chance of M-class flares over the next three days.

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NOAA: No Space Weather Storms Observed or Expected

27 Sep 2026 10:18 p.m. · Source: NOAA

NOAA's Space Weather Prediction Center reports no storms during September 21-27 and forecasts quiet conditions through October 4, with data contributed by NOAA, USAF, NASA and partners.

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NOAA Reports Low Solar Activity, Quiet Geomagnetic Conditions Expected Through 30 September

27 Sep 2026 6:00 p.m. · Source: NOAA

Solar activity stays low with four sunspot regions on the disk, while forecasters expect quiet geomagnetic conditions and a slight chance of an M-class flare on 28 September.

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Solar Activity Stays Low as NOAA Forecasts Slight Chance of M-Class Flare

26 Sep 2026 6:01 p.m. · Source: NOAA

NOAA reports low solar activity with seven numbered sunspot regions, a slight chance of an M-class flare on 27-28 September, and quiet to unsettled geomagnetic conditions.

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Solar Activity Low as NOAA Forecasts Slight Chance of M-Class Flares

25 Sep 2026 6:01 p.m. · Source: NOAA

Solar activity remained low over the past 24 hours with eight numbered sunspot regions on the disk, while NOAA forecasts a slight chance of M-class flares over the next three days.

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Solar Activity Stays Low as NOAA Forecasts Slight Chance of M-Class Flares

24 Sep 2026 6:01 p.m. · Source: NOAA

NOAA reports eight numbered sunspot regions and low solar activity, with a slight chance of M-class flares through 27 September as geomagnetic levels hold at quiet to active.

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