Space Weather Events
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Research information from NASA DONKI, not an operational space weather warning service.
Showing 1–20 of 113 records
Solar flare — 2026-10-04 06:13 UTC (B3.2)
Class B3.2
- Event type
- Solar flare
- Date
- Peak (UTC)
- End (UTC)
- Flare class
- B3.2
- Source location / observed at
- S20W62
First in pair of eruptive flares from AR 14546, followed immediately by a B9.3 class flare peaking at 2026-10-04T06:30Z. These two flares are in close succession, but visually separable in SDO AIA 131 and in their…
View on DONKI for Solar flare — 2026-10-04 06:13 UTC (B3.2) (opens in a new tab)Solar flare — 2026-10-04 06:21 UTC (B9.3)
Class B9.3
- Event type
- Solar flare
- Date
- Peak (UTC)
- End (UTC)
- Flare class
- B9.3
- Source location / observed at
- S19W62
Second in pair of eruptive flares from AR 14546, directly preceeded by a B3.2 class flare peaking at 2026-10-04T06:19Z. These two flares are in close succession, but visually separable in SDO AIA 131 and in their…
View on DONKI for Solar flare — 2026-10-04 06:21 UTC (B9.3) (opens in a new tab)Solar flare — 2026-09-19 17:57 UTC (C3.3)
Class C3.3
- Event type
- Solar flare
- Date
- Peak (UTC)
- End (UTC)
- Flare class
- C3.3
- Source location / observed at
- N14E90
The flare was produce by the unnumbered Active Region just behind the limb. This is likely the Active Region that would be numbered AR 14535.
View on DONKI for Solar flare — 2026-09-19 17:57 UTC (C3.3) (opens in a new tab)Solar flare — 2026-10-07 12:49 UTC (C7.9)
Class C7.9
- Event type
- Solar flare
- Date
- Peak (UTC)
- End (UTC)
- Flare class
- C7.9
- Source location / observed at
- N10W04
Solar flare — 2026-09-30 02:30 UTC (C8.6)
Class C8.6
- Event type
- Solar flare
- Date
- Peak (UTC)
- End (UTC)
- Flare class
- C8.6
- Source location / observed at
- N11W48
Solar flare — 2026-10-05 18:36 UTC (M1.0)
Class M1.0
- Event type
- Solar flare
- Date
- Peak (UTC)
- End (UTC)
- Flare class
- M1.0
- Source location / observed at
- N20E10
Solar flare — 2026-10-10 13:56 UTC (M1.2)
Class M1.2
- Event type
- Solar flare
- Date
- Peak (UTC)
- End (UTC)
- Flare class
- M1.2
- Source location / observed at
- N08W51
Solar flare — 2026-10-09 13:55 UTC (M1.3)
Class M1.3
- Event type
- Solar flare
- Date
- Peak (UTC)
- End (UTC)
- Flare class
- M1.3
- Source location / observed at
- N15W90
Region 14547 decayed to a plage on 2026-10-08 and rotated off of the Earth-facing disk early on 2026-10-09. This flare may be occulted due to it's location near the west limb.
View on DONKI for Solar flare — 2026-10-09 13:55 UTC (M1.3) (opens in a new tab)Solar flare — 2026-10-06 05:38 UTC (M1.4)
Class M1.4
- Event type
- Solar flare
- Date
- Peak (UTC)
- End (UTC)
- Flare class
- M1.4
- Source location / observed at
- N10E12
Solar flare — 2026-10-06 07:47 UTC (M1.8)
Class M1.8
- Event type
- Solar flare
- Date
- Peak (UTC)
- End (UTC)
- Flare class
- M1.8
- Source location / observed at
- N08E07
Solar flare — 2026-10-10 14:58 UTC (M6.4)
Class M6.4
- Event type
- Solar flare
- Date
- Peak (UTC)
- End (UTC)
- Flare class
- M6.4
- Source location / observed at
- N08W54
Solar flare — 2026-10-08 15:29 UTC (M6.7)
Class M6.7
- Event type
- Solar flare
- Date
- Peak (UTC)
- End (UTC)
- Flare class
- M6.7
- Source location / observed at
- N12W20
Coronal mass ejection — 2026-09-14 11:08 UTC
Type C (SCORE scale, most accurate analysis)
- Event type
- Coronal mass ejection
- Date
- Source location / observed at
- S11W38
- CME speed (most accurate analysis)
- 897 km/s
CME first seen to the E in STEREO A COR2 starting at 2026-09-14T11:08Z. It is also seen to the W in GOES CCOR-1. This CME is covered by a data gap in SOHO LASCO C2/C3 in real time. The source of this CME is an eruption…
View on DONKI for Coronal mass ejection — 2026-09-14 11:08 UTC (opens in a new tab)Coronal mass ejection — 2026-09-14 17:24 UTC
Type S (SCORE scale, most accurate analysis)
- Event type
- Coronal mass ejection
- Date
- CME speed (most accurate analysis)
- 461 km/s
CME observed to the NW in SOHO LASCO C2/C3 and GOES CCOR-1, likely not observed in STEREO A COR2 either due to faintness or a data gap starting at 2026-09-14T18:53Z before it becomes visible. The source is far-sided…
View on DONKI for Coronal mass ejection — 2026-09-14 17:24 UTC (opens in a new tab)Coronal mass ejection — 2026-09-15 08:36 UTC
Type S (SCORE scale, most accurate analysis)
- Event type
- Coronal mass ejection
- Date
- CME speed (most accurate analysis)
- 395 km/s
Very faint CME with an unclear front seen to the NE in early images of SOHO LASCO C2 only. It is not seen in SOHO LASCO C3, STEREO A COR2 and GOES CCOR-1, likely because of its faintness. No source for this feature has…
View on DONKI for Coronal mass ejection — 2026-09-15 08:36 UTC (opens in a new tab)Coronal mass ejection — 2026-09-18 03:24 UTC
Type S (SCORE scale, most accurate analysis)
- Event type
- Coronal mass ejection
- Date
- CME speed (most accurate analysis)
- 371 km/s
CME visible to the NE in SOHO LASCO C2/C3. The CME is also faintly visible to the NE in GOES CCOR-1 following a data gap due to Earthshine from 2026-09-18T03:45Z to 2026-09-18T06:10Z. The CME is not visible in STEREO A…
View on DONKI for Coronal mass ejection — 2026-09-18 03:24 UTC (opens in a new tab)Coronal mass ejection — 2026-09-19 16:38 UTC
Type C (SCORE scale, most accurate analysis)
- Event type
- Coronal mass ejection
- Date
- CME speed (most accurate analysis)
- 729 km/s
Faint, narrow CME seen to the SW in SOHO LASCO C2 and STEREO A COR2 and very faintly seen in a couple of frames of GOES CCOR-1 coronagraph imagery. The CME is not seen in SOHO LASCO C3. Its source is likely seen in…
View on DONKI for Coronal mass ejection — 2026-09-19 16:38 UTC (opens in a new tab)Coronal mass ejection — 2026-09-19 18:48 UTC
Type S (SCORE scale, most accurate analysis)
- Event type
- Coronal mass ejection
- Date
- Source location / observed at
- N14E90
- CME speed (most accurate analysis)
- 321 km/s
Faint, minor CME with an unclear front seen to the E-NE in SOHO LASCO C2. Not seen in other coronagraphs. Its source is the long duration C3.3 class flare from unnumbered AR rotating onto disk (N14E90) peaking at…
View on DONKI for Coronal mass ejection — 2026-09-19 18:48 UTC (opens in a new tab)Coronal mass ejection — 2026-09-19 22:12 UTC
Type S (SCORE scale, most accurate analysis)
- Event type
- Coronal mass ejection
- Date
- CME speed (most accurate analysis)
- 331 km/s
CME observed to the NW in SOHO LASCO C2/C3, GOES CCOR-1, and STEREO A COR2. The source is a far-sided filament eruption over the NW limb, observed best in GOES 284/304 starting around 2026-09-19T21:22Z. When STEREO A…
View on DONKI for Coronal mass ejection — 2026-09-19 22:12 UTC (opens in a new tab)Coronal mass ejection — 2026-09-19 22:24 UTC
Type S (SCORE scale, most accurate analysis)
- Event type
- Coronal mass ejection
- Date
- CME speed (most accurate analysis)
- 341 km/s
CME observed brightly to the SW in STEREO A COR2, and very faintly to the SE in SOHO LASCO C2/C3 and GOES CCOR-1. No source is seen in on-disk EUV imagery for this event, and is likely far-sided.
View on DONKI for Coronal mass ejection — 2026-09-19 22:24 UTC (opens in a new tab)
About this data
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Coverage of this source
- NASA DONKI — Space Weather Events: DONKI events in the look-back window (30 days by default), re-read every hour; older entries remain from earlier refreshes or an optional backfill.
NASA DONKI — Space Weather Events
Source: Data: NASA Community Coordinated Modeling Center (CCMC), DONKI; analyses by the Moon to Mars Space Weather Analysis Office. Last successful refresh: 12 Oct 2026, 23:18 EDT.
- DONKI information is supplied for research and analysis. It is not an operational emergency-warning service: NOAA's Space Weather Prediction Center (swpc.noaa.gov) is the official US source of space weather forecasts and warnings.
- Observations, analyses (a CME can have several, with the one DONKI marks most accurate), model predictions (WSA-ENLIL) and notifications are shown as such, in their original units and classifications. No combined severity score is computed.
- Times are UTC as supplied. DONKI revises entries; the look-back window is re-read on every refresh.