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| During the past 24 hours, solar activity was very low. Five sunspots were on the visible disk without C-class and above flare produced. Due to the effect of the coronal hole high speed stream , the solar wind speed increased to about 460 km/s. The geomagnetic field was at minor storm levels for 3 hours and quiet levels for the rest of time. |
| Within the next three days, solar activity is expected to be very low. Due to the continuous effect of the coronal hole high speed stream, the geomagnetic field is expected to be at active to minor storm levels on 1 Dec. It will be at quiet to unsettled levels on 2 Dec. Due to the effect of the CME on 29 Nov and the coronal hole high speed stream, the geomagnetic field is expected to be at active to minor storm levels on 3 Dec. |
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Published: |
2021-12-01 00:06 UTC |
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Forecaster: |
040/012 |
| During the past 24 hours, solar activity was very low. Three sunspot regions were on the visible disk without C-class and above flare produced. The solar wind speed maintained at about 510 km/s. The geomagnetic field was at active levels for 9 hours and quiet to unsettled levels for the rest of time. |
| Within the next three days, solar activity is expected to be very low. Due to the effect of the CME on 29 Nov and the coronal hole high speed stream, the geomagnetic field is expected to reach active to minor storm levels on 3 Dec and to be at quiet to unsettled levels for the rest of time. |
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Published: |
2021-12-01 23:56 UTC |
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Forecaster: |
012/039 |
| During the past 24 hours, solar activity was very low. Three sunspot regions were on the visible disk without C-class and above flare produced. The solar wind speed decreased to about 480 km/s. The geomagnetic field was quiet to unsettled. The greater than 2 MeV electron flux at geosynchronous orbit reached minor storm levels. |
| Within the next three days, solar activity is expected to be very low. Due to the effect of the CME on 29 Nov and the coronal hole high speed stream, the geomagnetic field is expected to reach active to minor storm levels on 3 Dec and reach isolated active levels on 4-5 Dec. |
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Published: |
2021-12-03 00:19 UTC |
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Forecaster: |
039/021 |
| During the past 24 hours, solar activity was very low. Two sunspot regions were on the visible disk without C-class and above flare produced. The solar wind speed decreased to a minmum of 420 km/s and then increased to about 470km/s . The geomagnetic field was quiet to unsettled. The greater than 2 MeV electron flux at geosynchronous orbit reached minor storm levels. |
| Within the next three days, solar activity is expected to be very low. Due to the effect of the CME and the coronal hole high speed stream, the geomagnetic field is expected to reach active levels on 4-5 Dec. and to be quiet to unsetteled on 6 Dec. |
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Published: |
2021-12-03 23:44 UTC |
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Forecaster: |
021/029 |
| During the past 24 hours, solar activity was low. Three sunspot regions were on the visible disk with nine C-class flares produced. The solar wind speed maintained at about 470km/s . The geomagnetic field was quiet to unsettled. |
| Within the next three days, solar activity is expected to be very low to low. The geomagnetic field is expected to be mainly quiet to unsetteled on 5-7 Dec. |
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Published: |
2021-12-04 23:42 UTC |
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Forecaster: |
029/026 |
| During the past 24 hours, solar activity was moderate. Three sunspot regions were on the visible disk. Active region 2898 produced one M1 and five C-class flares. The solar wind speed maintained at about 460 km/s. The geomagnetic field was quiet to unsettled. |
| Within the next three days, solar activity is expected to be very low to low. The geomagnetic field is expected to be mainly quiet to unsettled. |
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Published: |
2021-12-05 23:51 UTC |
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Forecaster: |
026/027 |
| During the past 24 hours, solar activity was low. One sunspot region was on the visible disk with two C-class flares produced. The solar wind speed maintained at about 510 km/s. The geomagnetic field was quiet to unsettled. |
| Within the next three days, solar activity is expected to be very low to low. The geomagnetic field is expected to be mainly quiet to unsettled. |
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Published: |
2021-12-06 23:46 UTC |
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Forecaster: |
027/010 |
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| During last week, solar activity was very low. Two sunspot regions (AR2882 and AR2886) were on the visible disk and without C-class and above flare produced. The F10.7 index was between 76 sfu and 84 sfu. Due to the effects of CME and coronal hole high speed stream, the geomagnetic field was at active levels for 15 hours on 17-19 Oct and at quiet to unsettled levels for the rest of time. |
| Within next week, solar activity is expected to be very low to low. The geomagnetic field is expected to be mainly quiet to unsettled. |
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Published: |
2021-10-22 00:53 UTC |
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Forecaster: |
010/012 |
| During last week, solar activity was at high level on 28 Oct and moderate level on 26 Oct. Six sunspot regions (AR2826-2891) were on the visible disk and produced one X1.0, four M-calss and 42 C-class flares. The X1.0 flare was associated with a halo CME. The F10.7 index increased from 87 sfu to 112 sfu. The greater than 10 MeV proton flux at geosynchronous orbit reached minor solar proton event levels at 17:40UT on 28 Oct. The solar wind speed fluctuated between 300 km/s and 480 km/s. The geomagnetic field was at quiet levels. |
| Within the next week, solar activity is expected to be mainly moderate. The solar proton event is expected to continue on 29-30 Oct. Due to the CME on 28 Oct, the geomagnetic field is expected to reach moderate to major storm levels on 30-31 Oct, it wiil be mainly quiet to unsettled for the rest of time. |
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Published: |
2021-10-29 02:51 UTC |
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Forecaster: |
010/040 |
| During last week, solar activity was at high level on 29 Oct and moderate level on 1-2 Nov. Six sunspot regions (AR2886-2887,AR2889,AR2891-2893) were on the visible disk and produced three M-class and 23 C-class flares. The solar proton event ended on 30 Oct and the proton reached a peak level of 29 pfu. The F10.7 index decreased from 108 sfu to 94 sfu. Due to the effect of the CMEs on 26 and 28 Oct, the geomagnetic field was at minor storm levels for 3 hours and active levels for 9 hours on 30-31 Oct. Due to the effect of coronal hole high speed stream, the geomagnetic field was at active levels for 12 hours on 1-2 Nov. Due to the effect of the CMEs on 1 and 2 Nov, the solar wind speed reached a peak of about 780 km/s on 3 Nov and the geomagnetic field was at major storm level for 9 hours, moderate storm levels for 6 hours, minor storm levels for 3 hours and active level for 6 hours on 3-4 Nov. Ap index reached 69 on 4 Nov. |
| Within next week, solar activity is expected to be low to moderate with a chance for M-class flare. The geomagnetic field is expected to be mainly quiet to unsettled. |
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Published: |
2021-11-05 02:15 UTC |
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Forecaster: |
027/010 |
| During last week, solar activity was at moderate level on 9 Nov. Four sunspot regions (AR2891,AR2893-2895) were on the visible disk and produced one M2-class and 6 C-class flares. The M2.0 flare was from the region 2891 which is beyond the limb of the disk. The F10.7 index ranged between 82 sfu and 93 sfu. The solar wind speed maintained at about 600 km/s on 5-7 Nov and the geomagnetic field was at active level for 15 hours on 5-7 Nov and at quiet to unsettled levels for the rest of time. The greater than 2 MeV electron flux at geosynchronous orbit reached minor storm levels on 7-8 Nov. |
| Within next week, solar activity is expected to be mainly very low to low. The geomagnetic field is expected to reach active levels on 16 Nov due to the effect of a recurrent coronal hole high speed stream and be mainly quiet for the rest time. |
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Published: |
2021-11-12 00:46 UTC |
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Forecaster: |
027/026 |
| During last week, solar activity was mainly very low with low level on 13 Nov. 5 sunspot active regions (2893-2897) were on the visible disk and produced one C1 flare. The F10.7 index ranged between 78 sfu and 83 sfu. Due to the effect of a recurrent coronal hole high speed stream, the solar wind speed increased to about 640 km/s on 15-17 Nov and the geomagnetic field was at active level for 15 hours, quiet to unsettled levels for the rest of time |
| Within next week, solar activity is expected to be mainly very low to low. The geomagnetic field is expected to reach active levels on 21 Nov due to the effect of a coronal hole high speed stream and be mainly quiet for the rest time. |
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Published: |
2021-11-19 00:38 UTC |
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Forecaster: |
029/026 |
| During last week, solar activity was very low. Three sunspot active regions (2896-2898) were on the visible disk without C-class and above flare produced. The F10.7 index ranged between 78 sfu and 94 sfu. Due to the effect of a recurrent coronal hole high speed stream, the solar wind speed increased to about 690 km/s on 21 Nov and the geomagnetic field was at quiet to unsettled levels. |
| Within next week, solar activity is expected to be mainly very low to low. The geomagnetic field is expected to reach isolated active levels on 27-28 Nov due to the effect of a coronal hole high speed stream and CME, and be mainly quiet to unsettled for the rest time. |
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Published: |
2021-11-26 00:29 UTC |
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Forecaster: |
021/029 |
| During the last week, solar activity was very low. Six sunspot regions were on the visible disk without C-class and above flare produced. Due to the continuous effect of CME on 24 Nov, the solar wind speed reached a peak of about 410 km/s on 28-29 Nov. The geomagnetic field was at active levels for 6 hours. Due to the effect of a coronal hole high speed stream , the solar wind speed increased to a maximum about 540 km/s on 1 Dec. The geomagnetic field was at minor storm levels for 3 hour on 30 Nov and at active levels for 9 hours on 1 Dec. The geomagnetic field was quiet to unsettled for the rest time. The greater than 2 MeV electron flux at geosynchronous orbit reached minor storm levels on 2 Dec. |
| Within the next week, solar activity is expected to be very low. Due to the effect of the CME on 29 Nov and the coronal hole high speed stream, the geomagnetic field is expected to reach minor storm levels on 3 Dec and reach isolated active levels on 4-5 Dec. It will be mainly quiet to unsettled for the rest time. |
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Published: |
2021-12-02 23:46 UTC |
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Forecaster: |
021 |
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